ARTICLE I

THE OFFER AND THE MERGER

ARTICLE II

EFFECT OF THE MERGER ON THE CAPITAL STOCK
OF THE CONSTITUENT CORPORATIONS

ARTICLE III

REPRESENTATIONS AND WARRANTIES OF THE COMPANY

ARTICLE IV

REPRESENTATIONS AND WARRANTIES OF
PARENT AND MERGER SUB

ARTICLE V

CONDUCT OF BUSINESS PENDING THE MERGER

ARTICLE VI

ADDITIONAL AGREEMENTS

ARTICLE VII

CONDITIONS OF MERGER

ARTICLE VIII

TERMINATION, AMENDMENT AND WAIVER

ARTICLE IX

GENERAL PROVISIONS

ARTICLE I

Purchase and Sale of Shares; Closing

ARTICLE II

Representations and Warranties of Sellers

ARTICLE III

Representations and Warranties Relating to Acquiror

ARTICLE IV

Covenants and Agreements

ARTICLE V

Conditions Precedent

ARTICLE VI

Termination, Amendment and Waiver

ARTICLE VII

Indemnification

ARTICLE VIII

General Provisions

ARTICLE I THE OFFER AND THE MERGER

ARTICLE II EFFECT OF THE MERGER ON THE CAPITAL STOCK OF THE CONSTITUENT CORPORATIONS

ARTICLE III REPRESENTATIONS AND WARRANTIES OF THE COMPANY

ARTICLE IV

REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB

ARTICLE V CONDUCT OF BUSINESS PENDING THE MERGER

ARTICLE VI ADDITIONAL AGREEMENTS

ARTICLE I

THE OFFER AND THE MERGER

ARTICLE II

EFFECT OF THE MERGER ON THE CAPITAL STOCK
OF THE CONSTITUENT CORPORATIONS

ARTICLE III

REPRESENTATIONS AND WARRANTIES OF THE COMPANY

REPRESENTATIONS AND WARRANTIES OF
PARENT AND MERGER SUB

ARTICLE V

CONDUCT OF BUSINESS PENDING THE MERGER

ARTICLE VI

ADDITIONAL AGREEMENTS

SECTION 1.1 The Offer. (a) Subject to the conditions of this Agreement, as promptly as practicable but in no event later than the later of (x) six Business Days after the date of this Agreement and (y) the first Business Day following publication in the Federal Register of SEC Release Number 34-54684 relating to the amendments to Rule 14d-10 promulgated under the Exchange Act (the date of such publications referred to as the “Publication Date”), Merger Sub shall, and Parent shall cause Merger Sub to, commence the Offer within the meaning of the applicable rules and regulations of the Securities and Exchange Commission (the “SEC”). The obligations of Merger Sub to, and of Parent to cause Merger Sub to, commence the Offer and accept for payment, and pay for, any Shares tendered pursuant to the Offer are subject to the conditions set forth in Exhibit A. The initial expiration date of the Offer shall be midnight New York City time on the later of (x) the 30th day (or if such day is not a Business Day, the first Business Day thereafter) following the Publication Date and (y) the 20th Business Day following the commencement of the Offer (determined using Exchange Act Rule 14d-1(g)(3) of the SEC) (the initial “Expiration Date” and any expiration time and date established pursuant to an extension of the Offer as so extended, also an “Expiration Date”). Merger Sub expressly reserves the right (x) if the Minimum Tender Condition has not been satisfied or if an Adverse Recommendation Change has been made, to increase the Offer Price and (y) to waive any condition to the Offer or modify the terms of the Offer, except that, without the consent of the Company, Merger Sub shall not (i) reduce the number of Shares subject to the Offer, (ii) reduce the Offer Price, (iii) waive the Minimum Tender Condition (as defined in Exhibit A), (iv) add to the conditions set forth in Exhibit A or modify any condition set forth in Exhibit A in any manner adverse to the holders of Company Common Stock, (v) except as otherwise provided in this Section 1.1(a), extend the Offer, (vi) change the form of consideration payable in the Offer or (vii) otherwise amend the Offer in any manner adverse to the holders of Company Common Stock. Notwithstanding the foregoing, Merger Sub may, in its discretion, without the consent of the Company, (i) extend the Offer for one or more consecutive increments of not more than five Business Days each, if at any otherwise scheduled Expiration Date of the Offer any of the conditions to Merger Sub’s obligation to purchase Shares are not satisfied or waived, until such time as such conditions are satisfied or waived, (ii) extend the Offer for the minimum period required by any rule, regulation, interpretation or position of the SEC or the staff thereof applicable to the Offer or (iii) make available a “subsequent offering period” in accordance with Exchange Act Rule 14d-11. In addition, if at any otherwise scheduled Expiration Date of the Offer any condition to the Offer is not satisfied or waived, Merger Sub shall, and Parent shall cause Merger Sub to, extend the Offer at the request of the Company for one or more consecutive increments of not more than five Business Days each. In addition, Merger Sub shall, if requested by the Company, make available a subsequent offering period in accordance with

Exchange Act Rule 14d-11 of not less than ten Business Days; provided that Merger Sub shall not be required to make available such a subsequent offering period in the event that, prior to the commencement of such subsequent offering period, Parent and Merger Sub, directly or indirectly own more than 80% of the Fully Diluted Shares. On the terms and subject to the conditions of the Offer and this Agreement, Merger Sub shall, and Parent shall cause Merger Sub to, accept and pay for all Shares validly tendered and not withdrawn pursuant to the Offer that Merger Sub becomes obligated to purchase pursuant to the Offer as soon as practicable after the expiration of the Offer. For the avoidance of doubt, the parties hereto agree that shares of Restricted Company Common Stock may be tendered in the Offer and be acquired by Parent or Merger Sub pursuant to the Offer.

SECTION 1.2 Company Actions. (a) The Company hereby approves of and consents to the Offer, the Merger and the other transactions contemplated by this Agreement.

SECTION 1.3 Treatment of Options; MJ Warrant. (a) Promptly after consummation of the Offer, by virtue of the consummation of the Offer and without any action on the part of any holder, each option to purchase Shares (an “Option”) granted under any Company Plan that is outstanding and unexercised (whether or not then exercisable) immediately prior to the consummation of the Offer shall vest in full and be canceled immediately prior to such time and shall be converted into the right to receive, promptly thereafter, an amount in cash (less any applicable withholding taxes and without interest) equal to the product of (i) the number of Shares subject to such Option and (ii) the excess, if any, of (A) the highest price per Share paid pursuant to the Offer over (B) the per share exercise price in effect for such Option (the “Option Consideration”).

SECTION 1.4 The Merger. Upon the terms and subject to the conditions of this Agreement and in accordance with the FBCA, at the Effective Time, Merger Sub shall be merged with and into the Company. As a result of the Merger, the separate corporate existence of Merger Sub shall cease and the Company shall continue as the surviving corporation of the Merger (the “Surviving Corporation”).

SECTION 1.5 Closing; Effective Time. Subject to the provisions of Article VII, the closing of the Merger (the “Closing”) shall take place at the offices of Cravath, Swaine & Moore LLP, Worldwide Plaza, 825 Eighth Avenue, New York, New York 10019, as soon as

practicable, but in no event later than the second Business Day, after the satisfaction or waiver (to the extent permitted by Law) of the conditions set forth in Article VII (excluding conditions that, by their terms, cannot be satisfied until the Closing, but subject to the satisfaction or waiver (to the extent permitted by Law) of such conditions at the Closing), or at such other place or on such other date as Parent and the Company may mutually agree; provided, however, that if all the conditions set forth in Article VII shall not have been satisfied or waived (to the extent permitted by Law) on such second Business Day, then the Closing shall take place on the first Business Day on which all such conditions shall have been satisfied or waived (to the extent permitted by Law). The date on which the Closing actually occurs is hereinafter referred to as the “Closing Date”. At the Closing, the parties hereto shall cause the Merger to be consummated by filing articles of merger (the “Articles of Merger”) with the Florida Department of State, Division of Corporations and the Secretary of State of the State of Delaware, in such form as required by, and executed in accordance with, the relevant provisions of the FBCA (the date and time of the acceptance of the filing of the Articles of Merger by the Florida Department of State, Division of Corporations, or such later time as is specified in the Articles of Merger and as is agreed to by the parties hereto, being hereinafter referred to as the “Effective Time”) and shall make all other filings or recordings required under the FBCA in connection with the Merger.

SECTION 1.6 Effects of the Merger. The Merger shall have the effects set forth herein and in the applicable provisions of the FBCA. Without limiting the generality of the foregoing and subject thereto, at the Effective Time, all the property, rights, privileges, immunities, powers and franchises of the Company and Merger Sub shall vest in the Surviving Corporation and all debts, liabilities and duties of the Company and Merger Sub shall become the debts, liabilities and duties of the Surviving Corporation.

SECTION 1.7 Articles of Incorporation; Bylaws. (a) Pursuant to the Merger, the articles of incorporation of the Company shall be amended and restated to be in the form of the articles of incorporation of Merger Sub in effect immediately prior to the Effective Time and, as so amended, such articles of incorporation shall be the articles of incorporation of the Surviving Corporation until thereafter amended in accordance with its terms and as provided by law, except that the name of the Surviving Corporation shall be changed to a name to be specified by Parent.

SECTION 1.8 Directors and Officers. The directors of Merger Sub immediately prior to the Effective Time and the officers of the Company immediately prior to the Effective Time shall be the directors and officers, respectively, of the Surviving Corporation, in each case until the earlier of his or her resignation or removal or until his or her successors are duly elected and qualified.

SECTION 2.1 Conversion of Securities. At the Effective Time, by virtue of the Merger and without any action on the part of Parent, Merger Sub, the Company or the holders of any of the following securities, the following shall occur:

SECTION 2.2 Treatment of ESPP, Warrants, etc. (a) The Company shall take any and all actions with respect to the Company’s Employee Stock Purchase Plan (the “ESPP”) as are necessary to provide that, subject to consummation of the Merger, the ESPP shall terminate, effective on the date immediately prior to the Closing Date (the “ESPP Termination Date”). On the ESPP Termination Date, each purchase right under the ESPP as of the ESPP Termination Date shall be automatically exercised by applying the payroll deductions of each participant in the ESPP for the applicable Offering Period (as defined in the ESPP) to the purchase of a number of whole Shares (subject to the provisions of the ESPP regarding the number of shares purchasable) at the exercise price per Share specified in the ESPP, which number of shares will then be canceled and converted into the right to receive the Merger Consideration in accordance with Section 2.1(a) hereof. Any excess payroll deductions not used

as a result of ESPP share limitations shall be distributed to each participant without interest. If a fractional number of Shares results, then such number shall be rounded down to the next whole number, and the excess payroll deductions shall be distributed to the applicable participant without interest.

SECTION 2.3 Surrender of Shares. (a) Prior to the Effective Time, Merger Sub shall enter into an agreement with a paying agent reasonably acceptable to the Company to act as its paying agent (the “Paying Agent”) for the payment of the Merger Consideration to which the shareholders of the Company shall become entitled pursuant to this Article II. At or prior to the Effective Time, Parent shall, or shall cause the Surviving Corporation to, deposit with the Paying Agent to be held in trust for the benefit of holders of Certificates all the cash necessary to pay for the Shares converted into the right to receive the Merger Consideration pursuant to Section 2.1(a) (such cash being hereinafter referred to as the “Exchange Fund”).

SECTION 2.4 Withholding Taxes. Notwithstanding anything in this Agreement to the contrary, Parent, the Surviving Corporation and the Paying Agent shall be entitled to deduct and withhold from the consideration otherwise payable to any former holder of Shares pursuant to this Agreement any amount as may be required to be deducted and withheld with respect to the making of such payment under applicable tax Laws. To the extent that amounts are so properly withheld by the Paying Agent, the Surviving Corporation or Parent, as the case may be, and are paid over to the appropriate Governmental Entity in accordance with applicable Law, such withheld amounts shall be treated for all purposes of this Agreement as having been paid to the holder of the Shares in respect of which such deduction and withholding was made by the Paying Agent, the Surviving Corporation or Parent, as the case may be.

SECTION 3.1 Organization and Qualification; Subsidiaries; Joint Ventures. (a) Each of the Company and its Subsidiaries is a corporation duly organized, validly existing and in good standing or active status under the laws of the jurisdiction in which it is incorporated (in the case of good standing, to the extent the concept is recognized by such jurisdiction) and has all requisite corporate power and authority to own, lease and operate its properties and to carry on its business as it is now being conducted, except where any failure to be so organized, existing or in good standing or active status or to have such power or authority would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. Each of the Company and its Subsidiaries is duly qualified or licensed to do business, and is in good standing, in each jurisdiction where the character of the properties owned, leased or operated by it or the nature of its activities makes such qualification or licensing necessary, except for any failure to be so qualified or licensed or in good standing which would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. “Material Adverse Effect” means any change, effect, event or occurrence that (A) has a material adverse effect on the assets, business, financial condition or results of operations of the Company and its Subsidiaries taken as a whole or (B) prevents, or materially delays the Company from performing its obligations under this Agreement in any material respect or materially delays consummating the transactions contemplated hereby or would reasonably be expected to have such effect; provided, however, that no change, effect, event or occurrence to the extent arising or resulting from any of the following, either alone or in combination, shall constitute or be taken into account in determining whether there has been or will be, a Material

Adverse Effect: (i) general economic or market conditions or general changes or developments in the pharmaceutical industry or affecting participants in the pharmaceutical industry, (ii) acts of war or terrorism or natural disasters, (iii) the announcement or performance of this Agreement and the transactions contemplated hereby, including compliance with the covenants set forth herein and the identity of Parent as the acquiror of the Company, or any action taken or omitted to be taken by the Company at the written request or with the prior written consent of Parent or Merger Sub, (iv) changes in GAAP, (v) changes in the price or trading volume of the Company’s stock (provided that any change, effect, event or occurrence that may have caused or contributed to such change in market price or trading volume shall not be excluded), (vi) any failure by the Company to meet revenue or earnings projections, in and of itself (provided that any change, effect, event or occurrence that may have caused or contributed to such failure to meet published revenue or earnings projections shall not be excluded) or (vii) the Submission, unless, in the case of clause (i) or (ii), such change, effect, event or occurrence has a materially disproportionate effect on the Company and its Subsidiaries, taken as a whole, compared with other companies operating in the pharmaceutical industry.

SECTION 3.2 Articles of Incorporation and Bylaws. The Company has heretofore furnished to Parent a complete and correct copy of the amended and restated articles of incorporation dated as of May 2, 2005 (the “Articles of Incorporation”) and the amended and restated bylaws dated as of October 16, 2003 (the “Bylaws”) of the Company as in effect on the date hereof and all minutes of the Board of Directors of the Company since January 1, 2005 other than those with respect to consideration and approval of the Offer and the Merger and related transactions. The Articles of Incorporation of the Company and the Bylaws are in full force and effect and no other organizational documents are applicable to or binding upon the Company. The Company is not in violation of any provisions of its Articles of Incorporation or Bylaws in any material respect.

SECTION 3.3 Capitalization. (a) The authorized capital stock of the Company consists of (i) 100,000,000 Shares, and (ii) 10,000,000 shares of preferred stock, par value $0.01 per share (the “Preferred Stock”).

SECTION 3.4 Authority. (a) The Company has all necessary corporate power and authority to execute and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated hereby. The execution, delivery and performance of this Agreement by the Company and the consummation by the Company of the transactions contemplated hereby have been duly and validly authorized by all necessary corporate action on the part of the Company, subject, in the case of the Merger, to the approval of this Agreement by the holders of at least a majority in combined voting power of the outstanding Shares if required by applicable Law (the “Company Requisite Vote”), and the filing with the Florida Department of State, Division of Corporations and the Secretary of State of the State of Delaware of the Articles of Merger as required by the FBCA and the Delaware General Corporation Law. The affirmative vote of a majority of the outstanding Company Common Stock is the only vote required of the Company’s capital stock necessary in connection with the approval and consummation of the Merger. No other vote of the Company’s shareholders is necessary in connection with this Agreement, the Shareholders Agreement, or the consummation of any of the transactions contemplated hereby. This Agreement has been duly and validly executed and delivered by the Company and, assuming the due authorization, execution and delivery hereof by Parent and Merger Sub, constitutes a legal, valid and binding obligation of the Company enforceable against the Company in accordance with its terms, subject to the effects of bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and other similar laws relating to or affecting creditors’ rights generally, general equitable principles (whether considered in a proceeding in equity or at law) and any implied covenant of good faith and fair dealing.

SECTION 3.5 No Conflict; Required Filings and Consents. (a) The execution, delivery and performance of this Agreement by the Company do not and will not (i) conflict with or violate the Articles of Incorporation or Bylaws of the Company or its Subsidiaries, (ii) assuming that all consents, approvals and authorizations contemplated by clauses (i) through (vii) of subsection (b) below have been obtained, and all filings described in such clauses have been made, conflict with or violate any federal, state, local or foreign statute, law, ordinance, rule, regulation, order, judgment, decree or legal requirement (“Law”) applicable to the Company or its Subsidiaries or by which any of their respective properties are bound or (iii) (A) require notice to any third party, result in any breach or violation of or constitute a default (or an event which with notice or lapse of time or both would become a default), or (B) result in the loss of a benefit under, or give rise to any right of termination, cancellation, amendment or acceleration of, or (C) result in the creation of any Lien on any of the properties or assets of the Company or its Subsidiaries under, any note, bond, mortgage, indenture, contract, agreement, lease, license, permit or other instrument or obligation (each, a “Contract”) to which the Company or its Subsidiaries is a party or by which the Company or its Subsidiaries or any of their respective properties are bound, except, in the case of clauses (ii) and (iii), for any such notice, conflict, violation, breach, default, loss, right or other occurrence which would not, or would not reasonably be expected to, (A) materially delay consummating the transactions contemplated hereby on a timely basis or (B) individually or in the aggregate, have a Material Adverse Effect.

SECTION 3.6 Compliance. (a) Neither the Company nor its Subsidiaries is in violation of any Law applicable to the Company or its Subsidiaries or by which any of their respective properties are bound or any regulation issued under any of the foregoing or has been notified in writing by any Governmental Entity of any violation, or any investigation with respect to any such Law, including Laws enforced by the United States Food and Drug Administration (“FDA”) and comparable foreign Governmental Entities (collectively, “Drug Law”), except for any such violation which would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect.

SECTION 3.7 SEC Filings; Financial Statements. (a) The Company has filed or otherwise transmitted all forms, reports, statements, certifications and other documents (including all exhibits, amendments and supplements thereto) required to be filed or otherwise transmitted by it with the SEC) since January 1, 2005 and prior to the date hereof (such documents filed since January 1, 2005 and prior to the date hereof, the “SEC Reports”). As of their respective dates, each of the SEC Reports complied as to form in all material respects with the applicable requirements of the Securities Act and the rules and regulations promulgated thereunder and the Exchange Act and the rules and regulations promulgated thereunder, each as in effect on the date so filed. Except to the extent amended or superseded by a subsequent filing with the SEC made prior to the date hereof, as of their respective dates (and if so amended or superseded, then on the date of such subsequent filing), none of the SEC Reports contained any untrue statement of a material fact or omitted to state a material fact required to be stated or incorporated by reference therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

SECTION 3.8 Absence of Certain Changes or Events. Since January 1, 2006, until the date of this Agreement, (i) except as contemplated by this Agreement, the Company and its Subsidiaries have conducted their business in the ordinary course consistent with past practice, and (ii) there has not been (a) any change, event or occurrence which has had or would reasonably be expected to have a Material Adverse Effect or (b) (A) any declaration, setting aside or payment of any dividend or other distribution in cash, stock, property or otherwise in respect of the Company’s or its Subsidiaries’ capital stock; (B) any redemption, repurchase or other acquisition of any shares of capital stock of the Company or its Subsidiaries (other than in connection with the forfeiture or exercise of equity based awards, Options and Restricted Company Common Stock in accordance with existing agreements or terms); (C) except as contemplated by this Agreement (1) any granting by the Company or its Subsidiaries to any of their directors, officers or employees of any material increase in compensation or benefits, except for increases in the ordinary course of business consistent with past practice or that are required under any Company Plan; (2) any granting to any director, officer or employee of the right to receive any severance or termination pay, except as provided for under any plan or agreement in effect prior to January 1, 2006 or (3) any entry by the Company or its Subsidiaries into any employment, consulting, indemnification, termination, change of control or severance agreement or arrangement with any present or former director, officer or employee of the Company or its Subsidiaries, or any amendment to or adoption of any Company Plan or collective bargaining agreement; (D) any material change by the Company in its accounting principles, except as may be required to conform to changes in statutory or regulatory accounting rules or GAAP or regulatory requirements with respect thereto; (E) any material Tax election made by the Company or its Subsidiaries or any settlement or compromise of any material Tax liability by the Company or its Subsidiaries; or (F) any material change in Tax accounting principles by the Company or its Subsidiaries, except insofar as may have been required by applicable Law.

SECTION 3.9 Absence of Litigation. There are no suits, claims, actions, proceedings, arbitrations, mediations or, to the Company’s Knowledge, governmental investigations (“Proceedings”) pending or, to the Company’s Knowledge, threatened against the Company or its Subsidiaries, other than any Proceeding that would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. Neither the Company nor its Subsidiaries nor any of their respective properties is or are subject to any order, writ, judgment, injunction, decree or award except for those that would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect.

SECTION 3.10 Employee Benefit Plans. (a) Section 3.10(a) of the Company Disclosure Schedule contains a true and complete list of each material Company Plan. “Company Plans” means each “employee benefit plan” (within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), but excluding any plan that is a “multiemployer plan,” as defined in Section 3(37) of ERISA (“Multiemployer Plan”)), and each other cash-based or equity-based plan, program, agreement or arrangement,

vacation or sick pay policy, fringe benefit plan, and compensation, severance or employment agreement contributed to, sponsored or maintained by the Company or its Subsidiaries or with respect to which the Company or any of its Subsidiaries has any liabilities or obligations as of the date hereof for the benefit of any current, former or retired employee, officer, consultant, independent contractor or director of the Company or its Subsidiaries (collectively, the “Company Employees”).

SECTION 3.11 Labor and Employment Matters. Neither the Company nor any of its Subsidiaries has any labor contracts or collective bargaining agreements with any persons employed by the Company or any of its Subsidiaries or any persons otherwise performing services primarily for the Company or any of its Subsidiaries. To the Knowledge of the Company, there are no unfair labor practice complaints pending against the Company or any Subsidiary of the Company before the National Labor Relations Board (the “NLRB”) or any other labor relations tribunal or authority, except for such complaints that would not, individually or in the aggregate, reasonably be expected to be material to the Company and its Subsidiaries taken as a whole. There are no strikes, work stoppages, slowdowns, lockouts, arbitrations or grievances, or other labor disputes pending or, to the Knowledge of the Company, threatened against or involving the Company or its Subsidiaries, except for such labor disputes that would not, individually or in the aggregate, reasonably be expected to be material to the Company and its Subsidiaries taken as a whole. No labor organization or group of employees of the Company or any of its Subsidiaries has made a pending demand for recognition or certification. Neither the Company nor any of its Subsidiaries has experienced any material labor strike, dispute or stoppage or other material labor difficulty involving its employees since January 1, 2004, and

there are no representation or certification proceedings or petitions seeking a representation proceeding presently pending or threatened to be brought or filed, with the NLRB or any other labor relations tribunal or authority, except for such demands, proceedings or petitions that would not, individually or in the aggregate, reasonably be expected to be material to the Company and its Subsidiaries taken as a whole. Each of the Company and its Subsidiaries is in compliance with all applicable laws and agreements respecting employment and employment practices, terms and conditions of employment, wages and hours and occupational safety and health, except where any failure to comply would not, or would not reasonably be expected to, individually or in the aggregate have a Material Adverse Effect. Neither the Company nor its Subsidiaries are liable for any payment to any trust or other fund or to any Governmental Entity, with respect to unemployment compensation benefits (other than routine payments to be made in the ordinary course of business consistent with past practice), except where any failure to comply would not or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect.

SECTION 3.12 Insurance. All material insurance policies of the Company and its Subsidiaries are listed in Section 3.12 of the Company Disclosure Schedule. Except as would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect: (a) all insurance policies of the Company and its Subsidiaries (i) are in full force and effect, (ii) provide what the Company reasonably believes to be full and adequate coverage for all normal risks incident to the business of the Company and its Subsidiaries and their respective properties and assets, and (iii) provide for insurance in such amounts and against such risks as is sufficient to comply with applicable Law; (b) neither the Company nor its Subsidiaries is in breach or default, and neither the Company nor its Subsidiaries has taken any action or failed to take any action which, with notice or the lapse of time, would constitute such a breach or default, or permit termination or modification of, any of such insurance policies; and (c) no notice in writing of cancellation or termination has been received with respect to any such policy except customary notices of cancellation in advance of scheduled expiration.

SECTION 3.13 Properties. Except as would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect, the Company or its Subsidiaries: (i) has good title to all the tangible personal property reflected in the latest audited balance sheet included in the SEC Reports as being owned by the Company or its Subsidiaries or acquired after the date thereof that are material to the Company’s business on a consolidated basis (except tangible personal property sold or otherwise disposed of since the date thereof in the ordinary course of business), free and clear of all Liens, except (A) statutory Liens for current Taxes or other governmental charges not yet due and payable or the amount or validity of which is being contested in good faith by appropriate proceedings, (B) Liens arising under worker’s compensation, unemployment insurance, social security, retirement and similar legislation, (C) other statutory liens securing payments not yet due including builder, mechanic, warehousemen, materialmen, contractor, landlord, workmen, repairmen, and carrier Liens, (D) purchase money Liens and Liens securing rental payments under capital lease arrangements, (E) such imperfections or irregularities of title, claims, liens, charges, security interests, easements, covenants and other restrictions or encumbrances as do not affect the use of the properties or assets subject thereto or affected thereby or otherwise impair business operations at such properties, and (F) mortgages, or deeds of trust, security interests or other encumbrances on title related to indebtedness reflected on the consolidated financial statements of the Company;

and (ii) is the lessee of all leasehold estates reflected in the latest audited financial statements included in the SEC Reports or acquired after the date thereof that are material to its business on a consolidated basis (except for leases that have expired by their terms since the date thereof or been assigned, terminated or otherwise disposed of in the ordinary course of business consistent with past practice) and which are set forth on Schedule 3.13 of the Company Disclosure Schedule and is in possession of the properties leased thereunder, and each such lease is valid without default thereunder by the Company or its Subsidiary, as applicable, or, to the Knowledge of the Company, by the lessor. The Company has made available to the Parent true, correct and complete copies of all leases and amendments thereto relating to real property leased to the Company or any of its Subsidiaries. There are no written or oral leases granting a third party the right of use or occupancy of any of the real property leased to the Company or any of its Subsidiaries. Neither the Company nor any of its Subsidiaries owns any real property.

SECTION 3.14 Tax Matters. (a) Except as would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect, (i) all Tax Returns required to be filed by or with respect to the Company and its Subsidiaries have been timely filed (except those under valid extension), and all such Tax Returns are true, correct and complete in all material respects, (ii) all Taxes of the Company and its Subsidiaries have been paid or have been adequately provided for on the most recent financial statements included in the SEC Reports, (iii) neither the Company nor its Subsidiaries has received written notice of any Proceeding against or audit of, or with respect to, any Taxes of the Company or its Subsidiaries that has not been finally resolved, and, to the Company’s Knowledge, no audit, examination or other Proceeding in respect of Taxes involving the Company or its Subsidiaries is being considered by any taxing authority, (iv) there are no liens for Taxes (other than statutory liens for Taxes not yet due and payable) upon any of the assets of the Company or its Subsidiaries, (v) neither the Company nor its Subsidiaries has been a “distributing corporation” or a “controlled corporation” in a distribution intended to qualify under Section 355(a) of the Code within the past two years or otherwise as part of a “plan (or series of related transactions)” (within the meaning of Section 355(e) of the Code) of which the Merger is also a part, (vi) neither the Company nor any of its Subsidiaries is a party to or is bound by any Tax sharing, allocation or indemnification agreement or arrangement (other than among the Company and its Subsidiaries), (vii) neither the Company nor any of its Subsidiaries (A) has been a member of a group filing a consolidated, combined or unitary Tax Return (other than a group consisting solely of the Company and its Subsidiaries) or (B) has any liability for the Taxes of any Person (other than a group of which the Company was the common parent) under Treasury regulation section 1.1502-6 (or any similar provision of state, local or foreign Law) (viii) any withholding Taxes required to be withheld and paid by the Company or any of its Subsidiaries (including withholding of Taxes pursuant to Sections 1441, 1442, 3121 and 3042 of the Code and similar provisions under any Federal, state, local or foreign tax laws) have been timely withheld and paid over to the proper governmental authorities as required under applicable laws and (ix) neither the Company nor any of its Subsidiaries has been a party to a transaction that, as of the date of this Agreement, constitutes a “reportable transaction” for purposes of Section 6011 of the Code and applicable Treasury regulations thereunder (or a similar provision of state Law).

SECTION 3.15 Information Supplied. None of the information supplied or to be supplied by the Company for inclusion or incorporation by reference in (i) the Offer Documents, the Schedule 14D-9 or the Information Statement will, at the time such document is filed with the SEC, at any time it is amended or supplemented or at the time it is first published, sent or given to the Company’s shareholders, contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, or (ii) the Proxy Statement will, at the date it is first mailed to the shareholders of the Company and at the time of the Shareholders Meeting or at the date of any amendment thereof or supplement thereto, contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they are made, not misleading. The Schedule 14D-9, the Information Statement and the Proxy Statement, at the date such Proxy Statement is first mailed to shareholders and at the time of the Shareholders Meeting, will comply as to form in all material respects with the requirements of the Exchange Act and the rules and regulations promulgated thereunder. Notwithstanding the foregoing, the Company makes no representation or warranty with respect to any information supplied by Parent or Merger Sub or any of their respective representatives which is contained or incorporated by reference in the Schedule 14D-9, the Information Statement or the Proxy Statement.

SECTION 3.16 Opinion of Financial Advisors. Greenhill & Co., LLC (the “Financial Advisor”) has delivered to the Board of Directors of the Company its written opinion (or oral opinion to be confirmed in writing), dated as of the date hereof, that, as of such date, the Offer Price and the Merger Consideration to be received by holders of the Company Common Stock (for each share of Company Common Stock) pursuant to this Agreement are fair, from a financial point of view, to the holders of the Company Common Stock.

SECTION 3.17 Brokers. No broker, finder or investment banker (other than the Financial Advisor) is entitled to any brokerage, finder’s or other fee or commission in connection with the transactions contemplated by this Agreement based upon arrangements made by and on behalf of the Company or its Subsidiaries, or for which the Company or its Subsidiaries may be financially liable. The aggregate fee or commission payable to the Financial Advisor in connection with the transactions contemplated by this Agreement is set forth on Schedule 3.17 of the Disclosure Schedules

SECTION 3.18 Takeover Statutes. Assuming the accuracy of the representations and warranties of Parent and Merger Sub set forth in Section 4.7, no “fair price”, “moratorium”, “control share acquisition”, “business combination” or other similar antitakeover statute or regulation enacted under U.S. state or federal laws applicable to the Company,

including FBCA § 607.0901 (“affiliated transactions” statute) and § 607.0902 (“control-share acquisitions” statute) (collectively, the “Anti-Takeover Statute”), is applicable to the Offer, the Merger or the other transactions contemplated hereby or in the Shareholders Agreement or the Stock Purchase Agreement.

SECTION 3.19 Intellectual Property. The Company and its Subsidiaries are the sole and exclusive (as to any third party) owners or assignees of the entire right, title and interest (including the right to sue for and damages resulting from past infringement) in and to the Intellectual Property set forth on Schedule 3.19(a), and are licensed perpetually and without royalty or other payment obligations to third parties to the Intellectual Property set forth on Schedule 3.19(b). The Company and its Subsidiaries own or have the rights to use, free and clear of any Liens, but subject to any existing licenses or other grants of rights to third parties (to the extent set forth in Section 3.19(a) or 3.19(b) of the Company Disclosure Schedule), all Intellectual Property as is necessary and sufficient (i) for their businesses as currently conducted and (ii) for the manufacture, use and sale of the products currently marketed and the products currently in development, by the Company and its Subsidiaries (collectively, the “Company Intellectual Property Rights “). Except as would not individually or in the aggregate, have a Material Adverse Effect, (a) there is no Proceeding pending, or to the Company’s Knowledge threatened, (i) alleging infringement, misappropriation, violation or dilution by the Company or its Subsidiaries of any Intellectual Property of a third party or challenging the validity, enforceability, ownership or use of any of the Intellectual Property set forth in Section 3.19(a) or 3.19(b) of the Company Disclosure Schedule or the Company Intellectual Property Rights therein and (ii) by the Company or its Subsidiaries alleging infringement or misappropriation of any Intellectual Property against a third party; (b) the manufacture, use and sale of its products does not infringe the Intellectual Property rights of any third party, and, to the Company’s Knowledge, the Company Intellectual Property Rights are not being infringed by any third party; (c) no Company Intellectual Property Right will terminate or cease to be a valid right of the Company or its Subsidiaries by reason of the execution and delivery of this Agreement by the Company, the performance of the Company of its obligations hereunder, or the consummation by the Company of the Merger; (d) the Company has not granted any license, sublicenses or any other rights in, to or under the Intellectual Property and (e) to the Company’s Knowledge, all necessary registration, maintenance, and renewal fees in connection with Company Intellectual Property (including any maintenance fees that are subject to a surcharge if paid during a grace period) have been paid and all necessary documents and certificates in connection therewith have been filed with the relevant patent, copyright, trademark, or other authority in the United States or in non-U.S. jurisdictions, as the case may be, for the purpose of maintaining the registrations or applications for registration. The Company has required all current and former employees of the Company, and consultants to the Company, in each case, (i) who were involved in the development of any Intellectual Property by, or on behalf of, the Company, to execute agreements that provide for the assignment to the Company of all inventions and developments relating to such Intellectual Property of the Company created by them in the course of their employment or consulting engagement with the Company to the Company, and (ii) who were in possession of any confidential information to execute written agreements prohibiting the disclosure of such confidential information of the Company. As used in this Agreement, “Intellectual Property “ means all patents, inventions, copyrights, software, trademarks, trade names, service marks, logos, designs, and other source identifiers, domain names, trade dress, trade secrets and all other intellectual property and intellectual property rights of any kind or

nature. For purposes of this Section 3.19, the term “patents” means United States and non-U.S. patents (utility or design, as applicable), provisional patent applications, non-provisional patent applications, continuations, continuations-in-part, divisions, any such patents resulting from reissue, reexamination, renewal or extension (including any supplementary protection certificate) of any patent, patent disclosures, substitute applications, and any confirmation patent or registration patent or patent of addition based on any such patent, and all foreign counterparts of any of the foregoing. For purposes of this Section 3.19, the terms “copyrights,” “trademarks,” “service marks,” “trade dress,” “logos,” “designs,” and “other source identifiers” means all registered and unregistered U.S. and non-U.S. copyrights, trademarks, service marks, trade dress, logos, designs, and other source identifiers, and all intellectual property rights associated with them, including all common law rights and applications for registration.

SECTION 3.20 Environmental Matters. (a) Except as would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect: (i) the Company and its Subsidiaries comply with all applicable Environmental Laws, and possess and comply with all applicable Environmental Permits required under such Environmental Laws to operate as they presently operate; (ii) there are no Materials of Environmental Concern at any property owned or operated currently or, to the Company’s Knowledge, in the past five years by the Company or its Subsidiaries, under circumstances that are reasonably likely to result in liability of the Company or its Subsidiaries under any applicable Environmental Law; (iii) neither the Company nor its Subsidiaries has received any written notification alleging that it is liable for, or request for information pursuant to section 104(e) of the Comprehensive Environmental Response, Compensation, and Liability Act or similar state statute concerning, any release or threatened release of Materials of Environmental Concern at any location except, with respect to any such notification or request for information concerning any such release or threatened release, to the extent such matter has been resolved with the appropriate Governmental Entity or otherwise; and (iv) neither the Company nor its Subsidiaries has received any written claim, notice or complaint, or been subject to any Proceeding, relating to noncompliance with Environmental Laws or any other liabilities or obligations arising from Materials of Environmental Concern or pursuant to Environmental Laws, and to the Knowledge of the Company no such Proceeding is threatened.

SECTION 3.21 Contracts. (a) Except for this Agreement and except for Contracts filed as exhibits to the SEC Reports, as of the date of this Agreement, none of the Company or its Subsidiaries is a party to or bound by any Contract: (i) that would be required to be filed by the Company as a “material contract” pursuant to Item 601(b)(10) of Regulation S-K under the Securities Act; (ii) containing covenants binding upon the Company or its Subsidiaries that restrict the ability of the Company or any of its Subsidiaries (or which, following the consummation of the Offer or the Merger, would materially restrict the ability of the Surviving Corporation or its Affiliates) to compete in any business or geographic area; (iii) involving the payment or receipt of royalties or other amounts of more than $5,000,000 in the aggregate calculated based upon the revenues or income of the Company or its Subsidiaries or income or revenues related to any product of the Company or its Subsidiaries; (iv) with any Affiliate; (v) that would prevent, materially delay or materially impede the Company’s ability to consummate the Offer or the Merger or the other transactions contemplated by this Agreement; or (vi) that was not negotiated and entered into an arm’s length basis. Each such Contract described in clauses (i) through (vi) as well as each Contract listed in Section 3.19(a) or 3.19(b) of the Company Disclosure Schedule is referred to herein as a “Material Contract”.

SECTION 3.22 Affiliate Transactions. No Affiliate of the Company or its Subsidiaries is, or is an Affiliate of a Person that is, a party to any Contract with or binding upon the Company or its Subsidiaries or any of their respective properties or assets or has any material interest in any material property owned by the Company or its Subsidiaries or has engaged in any material transaction with any of the foregoing within the last twelve months preceding the date of this Agreement.

SECTION 4.1 Organization. Each of Parent and Merger Sub is a corporation duly organized, validly existing and in good standing or active status under the laws of the jurisdiction in which it is incorporated and has all requisite corporate power and authority to own, operate and lease its properties and to carry on its business as it is now being conducted, except where any failure to be so organized, existing or in good standing or active status or to have such power or authority would not, or would not reasonably be expected to, individually or in the aggregate, have a Parent Material Adverse Effect. Each of the Parent and Merger Sub is duly qualified or licensed to do business, and is in good standing, in each jurisdiction where the character of the properties owned, leased or operated by it or the nature of its activities makes such qualification or licensing necessary, except for any failure to be so qualified or licensed or in good standing which would not, or would not reasonably be expected to, individually or in the aggregate, have a Parent Material Adverse Effect. Prior to the date hereof, Parent has provided to the Company the name of the “ultimate parent entity” for purposes of obtaining the approvals of the Governmental Entities contemplated by this Agreement. “Parent Material Adverse Effect” means any change, effect, event or occurrence that would reasonably be expected to (i) prevent or materially delay Parent from performing its obligations under this Agreement in any material respect or (ii) materially delay consummating the transactions contemplated hereby.

SECTION 4.2 Authority. Each of Parent and Merger Sub has all necessary corporate power and authority to execute and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated hereby. Parent as sole shareholder of Merger Sub has approved this Agreement. The execution, delivery and performance of this Agreement by each of Parent and Merger Sub and the consummation by each of Parent and Merger Sub of the transactions contemplated hereby have been duly and validly authorized by all necessary action of Parent and Merger Sub, and no other corporate proceedings on the part of Parent or Merger Sub are necessary to authorize this Agreement, to perform their respective obligations hereunder, or to consummate the transactions contemplated hereby (other than the filing with the Florida Department of State, Division of Corporations of the State of Florida of the Articles of Merger as required by the FBCA). Neither the approval or adoption of this Agreement nor the consummation of the Offer, the Merger or the other transactions contemplated hereby requires any approval of the shareholders of Parent. This Agreement has been duly and validly executed and delivered by Parent and Merger Sub and, assuming due authorization, execution and delivery hereof by the Company, constitutes a legal, valid and binding obligation of each of Parent and Merger Sub enforceable against each of Parent and Merger Sub in accordance with its terms, subject to the effects of bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and other similar laws relating to or affecting creditors’ rights generally, general equitable principles (whether considered in a proceeding in equity or at law) and any implied covenant of good faith and fair dealing.

SECTION 4.3 No Conflict; Required Filings and Consents. (a) The execution, delivery and performance of this Agreement by Parent and Merger Sub, do not and will not (i) conflict with or violate the respective certificates or articles of incorporation or bylaws of Parent or Merger Sub, (ii) assuming that all consents, approvals and authorizations contemplated by clauses (i) through (vii) of subsection (b) below have been obtained, and all filings described in such clauses have been made, conflict with or violate any Law applicable to Parent or Merger Sub or by which either of them or any of their respective properties are bound or (iii) (A) require notice pursuant to, result in any breach or violation of or constitute a default

(or an event which with notice or lapse of time or both would become a default), (B) result in the loss of a benefit under, or give rise to any right of termination, cancellation, amendment or acceleration of, or (C) result in the creation of any Lien on any of the properties or assets of Parent or Merger Sub under, any Contracts to which Parent or Merger Sub is a party or by which Parent or Merger Sub or any of their respective properties are bound, except, in the case of clauses (ii) and (iii), for any such notice, conflict, violation, breach, default, acceleration, loss, right or other occurrence which would not, or would not reasonably be expected to individually or in the aggregate, have a Parent Material Adverse Effect.

SECTION 4.4 Information Supplied. None of the information supplied or to be supplied by Parent or Merger Sub for inclusion or incorporation by reference in (i) the Offer Documents, the Schedule 14D-9 or the Information Statement will, at the time such document is filed with the SEC, at any time it is amended or supplemented or at the time it is first published, sent or given to the Company’s shareholders, contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, or (ii) the Proxy Statement will, at the date it is first mailed to the shareholders of the Company and at the time of the Shareholders Meeting or at the date of any amendment thereof or supplement thereto, contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they are made, not misleading. The Offer Documents, will comply as to form in all material respects with the requirements of the Securities Act and the rules and regulations promulgated thereunder. Notwithstanding the foregoing, Parent and Merger Sub make no representation or warranty with respect to any information supplied by the Company or any of its representatives which is contained or incorporated by reference in the Offer Documents and the Proxy Statement.

SECTION 4.5 Brokers. No broker, finder or investment banker (other than Banc of America Securities LLC, whose fees shall be paid by Parent) is entitled to any brokerage,

finder’s or other fee or commission in connection with the transactions contemplated by this Agreement based upon arrangements made by and on behalf of Parent or Merger Sub.

SECTION 4.6 Operations of Merger Sub. Merger Sub is a direct, wholly-owned subsidiary of Parent that has been formed solely for the purpose of engaging in the transactions contemplated hereby and prior to the Effective Time will have engaged in no other business activities and will have incurred no liabilities or obligations other than as contemplated herein.

SECTION 4.7 Ownership of Shares. Neither Parent nor Merger Sub nor any of Parent’s Affiliates owns (directly or indirectly, beneficially or of record) any Shares or holds any rights to acquire any Shares except pursuant to this Agreement, the Stock Purchase Agreement and the Shareholder’s Agreement.

SECTION 4.8 Absence of Litigation. There are no suits, claims, actions, proceedings, arbitrations, mediations or, to the knowledge of Parent, governmental investigations (“Parent Proceedings”) pending or, to the knowledge of Parent, threatened against Parent or its Subsidiaries, other than any Parent Proceeding that would not, or would not reasonably be expected to, individually or in the aggregate, have a Parent Material Adverse Effect.

SECTION 4.9 Available Funds. Parent has sufficient funds to (i) consummate the Offer, (ii) pay the aggregate Merger Consideration and (iii) pay any and all fees and expenses in connection with the Offer and the Merger or the financing thereof.

SECTION 5.1 Conduct of Business of the Company Pending the Merger. The Company covenants and agrees that, during the period from the date hereof until the Effective Time, except as contemplated by this Agreement, as set forth in the Company Disclosure Schedule or as required by Law, or unless Parent shall otherwise consent in writing, the business of the Company and its Subsidiaries shall be conducted in its ordinary course of business and the Company shall use its reasonable best efforts to preserve intact its business organization, and to preserve its present relationships with customers, suppliers, employees, licensees, licensors, partners and other Persons with which it has significant business relations. Without limiting the generality of the foregoing, between the date of this Agreement and the Effective Time, except as otherwise contemplated by this Agreement, as set forth in the Company Disclosure Schedule or as required by Law, neither the Company nor any of its Subsidiaries shall without the prior written consent of Parent (which consent shall (x) be in the sole discretion of Parent with respect to those actions prohibited by subsections (a), (b), (c), (d), (j), (q) and (s) with respect to actions pertaining to the foregoing subsections and (y) not be unreasonably withheld or delayed with respect to those actions prohibited by the remaining subsections with respect to actions pertaining thereto):

SECTION 6.1 Shareholders Meeting. (a) If the approval of this Agreement by the Company’s shareholders is required by Law, then the Company shall, at Parent’s request, as soon as practicable following the expiration of the Offer, acting through its Board of Directors, (i) take all action necessary to duly call, give notice of, convene and hold a meeting of its shareholders for the purpose of approving this Agreement (the “Shareholders Meeting”) and (ii) except to the extent that the Company’s Board of Directors has effected an Adverse Recommendation Change in accordance with the terms of Section 6.4(b), include in the Proxy Statement the Merger Recommendation. Notwithstanding the foregoing, if Merger Sub or any other subsidiary of Parent shall acquire at least 80% of the outstanding shares of each series of capital stock of the Company, the parties shall, at the request of Parent, take all necessary and appropriate action to cause the Merger to become effective as soon as practicable after the expiration of the Offer without a shareholders meeting in accordance with Section 607.1104 of the FBCA.

SECTION 6.2 Proxy Statement. If (a) the approval of this Agreement by the Company’s shareholders is required by Law, then the Company shall, at Parent’s request, as soon as practicable following the expiration of the Offer, or (b) the Publication Date does not occur on or prior to November 17, 2006, then the Company shall promptly thereafter, prepare and file with the SEC the Proxy Statement to be sent to the shareholders of the Company in connection with the Shareholders Meeting and other solicitation materials of Parent and the Company constituting a part thereof and related documents. Parent, Merger Sub and the Company will cooperate and consult with each other and their respective counsel in the preparation of the Proxy Statement and the related materials. Without limiting the generality of the foregoing, Parent will furnish to the Company the information relating to it required by the Exchange Act and the rules and regulations promulgated thereunder to be set forth in the Proxy Statement. The Company shall not file the preliminary Proxy Statement or any related materials, or any amendment or supplement thereto, without (i) providing the Parent a reasonable opportunity to review and comment thereon and (ii) including therein any comments reasonably proposed by Parent. Each party shall use its reasonable best efforts to resolve, and each party agrees to consult and cooperate with the other party in resolving, all SEC comments with respect to the preliminary Proxy Statement as promptly as practicable after receipt thereof and to cause the Proxy Statement in definitive form to be cleared by the SEC and mailed to the Company’s shareholders as promptly as reasonably practicable following filing with the SEC. Each party agrees to consult with the other party prior to responding to SEC comments with respect to the preliminary Proxy Statement. Each of Parent, Merger Sub and the Company agrees to correct any information provided by it for use in the Proxy Statement which shall have become false or misleading. Each party shall as soon as reasonably practicable (i) notify the other parties of the receipt of any comments from the SEC with respect to the Proxy Statement and any request by the SEC for any amendment to the Proxy Statement or for additional information and (ii) provide each other party with copies of all correspondence between a party and its employees and other authorized representatives, on the one hand, and the SEC, on the other hand, with respect to the Proxy Statement.

SECTION 6.3 Access to Information; Confidentiality. (a) From the date hereof to the Effective Time or the earlier termination of this Agreement, upon reasonable prior written notice, the Company shall, and shall cause its Subsidiaries, officers, directors, employees and representatives to, afford the officers, employees and representatives of Parent reasonable access, consistent with applicable Law, at all reasonable times to its officers, directors, employees, representatives, properties, offices, plants and other facilities and to all books and records of the Company and its Subsidiaries, and shall furnish Parent with all financial, operating and other data and information as Parent, through its officers, employees or representatives, may from time to time reasonably request in writing. Notwithstanding the foregoing, any such investigation or consultation shall not include any intrusive testing or environmental sampling of any kind and shall be conducted in such a manner as not to interfere unreasonably with the business or operations of the Company or its Subsidiaries or otherwise result in any significant interference with the prompt and timely discharge by such employees of their normal duties. Neither the Company nor its Subsidiaries shall be required to provide access to or to disclose

information where such access or disclosure would violate or prejudice the rights of its clients, jeopardize the attorney-client privilege of the Company or its Subsidiaries or contravene any Law or binding agreement entered into prior to the date of this Agreement. No investigation pursuant to this Section 6.3 or otherwise shall affect any representation or warranty in this Agreement or any condition to the obligations of the parties hereto.

SECTION 6.4 Acquisition Proposals. (a) The Company agrees that (i) it and its officers and directors shall not, (ii) it shall cause its Subsidiaries and its Subsidiaries’ officers and directors not to, and (iii) it shall cause its and its Subsidiaries’ agents and representatives not to, in each case (A) directly or indirectly, initiate, solicit or knowingly, encourage or facilitate (including by way of furnishing information) any inquiries or the making of any proposal or offer with respect to the direct or indirect acquisition, including by way of a tender offer, exchange offer, merger, consolidation or other business combination, of (x) an equity interest representing a 15% or greater economic or voting interest in the Company, (y) the assets, securities or other ownership interests of or in the Company or its Subsidiaries representing 15% or more of the consolidated assets of the Company and its Subsidiaries or (z) any other transaction the consummation of which would reasonably be expected to prevent or materially delay the Company from performing its obligations under this Agreement in any material respect or materially delay consummating the transactions contemplated hereby, other than, in the case of clauses (x), (y) and (z), the transactions contemplated by this Agreement (any such proposal or offer being hereinafter referred to as an (“Acquisition Proposal”), (B) directly or indirectly, engage in any discussions or negotiations concerning, provide access to its properties or furnish or provide access to its, books and records or any confidential information or data to, any Person relating to, an Acquisition Proposal or (C) otherwise cooperate in any way with, or assist or participate in, facilitate or encourage, any effort or attempt by any other Person to do or seek to do any of the foregoing; provided, however, that if the Board of Directors of the Company, in good faith, and after consultation with outside counsel and financial advisors, determines that the failure to take such action would be reasonably likely to result in a breach of its fiduciary duties to the Company’s shareholders under applicable Law, then at any time prior to the acceptance for payment of Shares pursuant to the Offer, the Company and its representatives may, in response to a written Acquisition Proposal that the Board of Directors of the Company determines, in good faith, after consultation with outside counsel and financial advisors, constitutes, or would reasonably be expected to lead to, a Superior Proposal, and which Acquisition Proposal did not result from a breach of this Section 6.4(a), (1) provide access or furnish information with respect to the Company and its Subsidiaries to the Person making such Acquisition Proposal (and its representatives) pursuant to a customary confidentiality agreement that is no less restrictive than the Confidentiality Agreement (including in respect of standstill provisions) and (2) engage in discussions or negotiations with the Person making such Acquisition Proposal (and its representatives) regarding such Acquisition Proposal; provided further, however, that, subject to

the right of the Company to withhold information where such disclosure would contravene any Law, the Company shall promptly provide to Parent any non-public information that is provided to the Person making such Acquisition Proposal or its representatives which was not previously provided to Parent or Merger Sub. The Company and its Subsidiaries will, and will cause their respective agents and representatives to, immediately cease and cause to be terminated any existing activities, discussions or negotiations with any Persons conducted heretofore with respect to any Acquisition Proposal and will require that any such Person shall promptly return or destroy any confidential information of the Company or its Subsidiaries in its possession. The Company shall also promptly (within 24 hours and, in any event, prior to taking any action contemplated by clause (1) or (2) of this Section 6.4(a)) notify Parent of the receipt of any Acquisition Proposal or any inquiry, proposal or offer that is reasonably likely to lead to an Acquisition Proposal after the date hereof, which notice shall include the identity of the Person making such Acquisition Proposal or other inquiry, proposal or offer and the material terms and conditions thereof, and will keep Parent promptly and reasonably apprised of any related material developments, discussions and negotiations related thereto.

SECTION 6.5 Employment and Employee Benefits Matters. (a) Parent shall cause the Surviving Corporation and its Subsidiaries, for the period commencing at the Effective Time and ending on the date that is 12 months after the Effective Time, to maintain for and provide to any Company Employee the compensation and employee benefits maintained and provided to the Company Employees immediately prior to the date of this Agreement (subject to modifications and increases permitted by Section 5.1) and at levels in the aggregate that are no less valuable than those maintained for and provided immediately prior to the date of this Agreement (subject to modifications and increases permitted by Section 5.1); provided that incentive compensation will be discretionary or based on performance.

SECTION 6.6 Directors’ and Officers’ Indemnification and Insurance. (a) Without limiting any additional rights that any Person may have under any agreement or Company Plan, from and after the Effective Time, the Surviving Corporation shall indemnify and hold harmless each present (as of the Effective Time) and former officer and director of the Company and its Subsidiaries (the “Indemnified Parties”), against all claims, losses, liabilities, damages, judgments, inquiries, fines and reasonable fees, costs and expenses, including reasonable attorneys’ fees and disbursements (collectively, “Costs”), incurred in connection with any Proceeding, whether civil, criminal, administrative or investigative, arising out of or pertaining to the fact that the Indemnified Party is or was an officer, director, employee, fiduciary or agent of the Company or its Subsidiaries, whether asserted or claimed prior to, at or after the Effective Time, to the fullest extent permitted under applicable Law and the Company’s Articles of Incorporation or Bylaws as at the date hereof. In the event of any such Proceeding, each Indemnified Party will be entitled to advancement of expenses incurred in the defense of the Proceeding from Parent or the Surviving Corporation within ten Business Days of receipt by Parent or the Surviving Corporation from the Indemnified Party of a request therefor to the extent as would be required under the Company’s Articles of Incorporation or Bylaws as at the date hereof and is permitted by the FBCA; provided that any Person to whom expenses are advanced provides an undertaking to repay such advances if it is ultimately determined that such Person is not entitled to indemnification; provided further that neither Parent nor the Surviving Corporation shall be required to indemnify or advance expenses to any Indemnified Party in connection with a Proceeding (or part thereof) initiated by such Indemnified Party unless such Proceeding (or part thereof) was or is authorized by the Board of Directors of Parent or the Surviving Corporation.

SECTION 6.7 Further Action; Efforts. (a) Subject to the terms and conditions of this Agreement, each party will use reasonable best efforts to take, or cause to be taken, all actions and to do, or cause to be done, all things necessary, proper or advisable under applicable laws and regulations to consummate the Offer, the Merger, the Investments Stock Purchase and the other transactions contemplated by this Agreement as promptly as practicable and no party hereto shall take or cause to be taken any action which would reasonably be expected to prevent, impede or delay the consummation of the Offer, the Merger or the Investments Stock Purchase. In furtherance and not in limitation of the foregoing, each party hereto agrees to make appropriate filings under any Antitrust Law, including an appropriate filing of a Notification and Report Form pursuant to the HSR Act with respect to the transactions contemplated hereby as promptly as practicable, to supply as promptly as reasonably practicable any additional information and documentary material that may be requested pursuant to the HSR Act, and to take all other actions necessary, proper or advisable to cause the expiration or

termination of the applicable waiting periods under the HSR Act as soon as practicable, including by requesting early termination of the waiting period provided for in the HSR Act.

SECTION 6.8 Public Announcements. Each of the Company, Parent and Merger Sub agrees that no public release or announcement concerning the transactions contemplated hereby shall be issued by any party without the prior written consent of the Company and Parent (which consent shall not be unreasonably withheld or delayed), except as such release or announcement may be required by Law or the rules or regulations of any applicable Governmental Entity to which the relevant party is subject, wherever situated, in which case the party required to make the release or announcement shall use its reasonable best efforts to allow each other party reasonable time to comment on such release or announcement in advance of such issuance, it being understood that the final form and content of any such release or announcement, to the extent so required, shall be at the final discretion of the disclosing party.

SECTION 6.9 Notification. From and after the date of this Agreement until the earlier of the Effective Time or the termination of this Agreement pursuant to and in accordance with Section 8.1, the Company and Parent shall promptly notify each other orally and in writing of the occurrence, or non-occurrence, of any event that, individually or in the aggregate, would make the timely satisfaction of any of the conditions set forth in Exhibit A, Sections 7.1 and 7.2 impossible or unlikely. This Section 6.9 shall not constitute an obligation, covenant or agreement for purposes of Section 8.1(d) or 8.1(e).

SECTION 6.10 Directors. (a) Promptly upon the acceptance for payment of, and payment by Parent or Merger Sub for, any Shares pursuant to the Offer, Parent or Merger Sub shall be entitled to designate such number of members of the Board of Directors of the Company as will give Merger Sub, subject to compliance with Section 14(f) of the Exchange Act, representation equal to at least that number of directors, rounded up to the next whole number, which is the product of (i) the total number of directors (giving effect to the directors elected pursuant to this sentence) multiplied by (ii) the percentage that (A) such number of Shares so accepted for payment and paid for pursuant to the Offer plus the number of Shares otherwise owned by Parent, Merger Sub or any other subsidiary of Parent bears to (B) the number of Shares outstanding, and the Company shall, at such time, cause such designees to be so elected; provided, however, that in the event that such designees are appointed or elected to the Board of Directors of the Company, until the Effective Time such Board of Directors shall have at least three directors who are directors on the date of this Agreement and who will be independent for purposes of Rule 10A-3 under the Exchange Act (the “Independent Directors”); and provided further that, in such event, if the number of Independent Directors shall be reduced below three

for any reason whatsoever, any remaining Independent Directors (or Independent Director, if there shall be only one remaining) shall be entitled to designate persons to fill such vacancies who shall be deemed to be Independent Directors for purposes of this Agreement or, if no Independent Directors then remain, the other directors shall designate three persons to fill such vacancies who will be independent for purposes of Rule 10A-3 under the Exchange Act, and such persons shall be deemed to be Independent Directors for purposes of this Agreement. Subject to applicable Law, the Company shall take all action requested by Parent necessary to effect any such election, including mailing to its shareholders the Information Statement containing the information required by Section 14(f) of the Exchange Act and Rule 14f-1 promulgated thereunder, and the Company shall make such mailing with the mailing of the Schedule 14D-9 (provided that Parent or Merger Sub shall have provided to the Company on a timely basis all information required to be included in the Information Statement with respect to such designees). In connection with the foregoing, the Company shall promptly, at the option of Parent, either increase the size of the Company Board or obtain the resignation of such number of its current directors as is necessary to enable such designees to be elected or appointed to the Board of Directors of the Company as provided above.

SECTION 6.11 Transfer Taxes. All stock transfer, real estate transfer, documentary, stamp, recording and other similar Taxes (including interest, penalties and additions to any such Taxes) (“Transfer Taxes”) incurred in connection with the Merger shall be paid by either Merger Sub or the Surviving Corporation, and the Company shall cooperate with Merger Sub and Parent in preparing, executing and filing any Tax Returns with respect to such Transfer Taxes.

SECTION 6.12 Anti-Takeover Statute. If any Anti-Takeover Statute is or may become applicable to this Agreement (including the Offer, the Merger and the other transactions contemplated hereby), the Shareholders Agreement or the Stock Purchase Agreement, each of Parent, the Company and Merger Sub and their respective Board of Directors shall grant all such approvals and take all such actions as are necessary so that such transactions may be consummated as promptly as practicable hereafter on the terms contemplated hereby and otherwise act to eliminate or minimize the effects of such statute or regulation on such transactions.

SECTION 6.13 Rule 14d-10(c) Matters. Prior to the Expiration Date, the Company (acting through its Board of Directors and its Compensation Committee) will take all such steps as may be required to cause to be exempt under amended Rule 14d-10(c) promulgated under the Exchange Act any employment compensation, severance or employee benefit arrangements that have been or will be entered into by the Company, Parent or any of their respective Affiliates with current or future directors, officers or employees of the Company and its Affiliates and to insure that any such arrangements fall within the safe harbor provisions of such rule.

SECTION 6.14 NDA No. 20-381. On November 6, 2006, the Company shall inform the FDA of the fact that the Company will make a submission (the “Submission”) to the FDA as part of NDA No. 20-381 of a study report (together with all supporting data and case report forms) of the comparative bioequivalence study conducted with respect to reformulated 1000mg extended release Niaspan tablets versus the 1000mg Niaspan tablets that are, as of the date of this Agreement, commercialized. As promptly as practicable after the date hereof, the Company shall make the Submission to the FDA. Notwithstanding any provision in this Agreement to the contrary, the Submission shall not result in any breach of any representation, warranty, covenant or agreement, or otherwise in the failure of any condition to the Offer or the Merger to be satisfied.

SECTION 7.1 Conditions to Obligation of Each Party to Effect the Merger. The respective obligations of each party to effect the Merger shall be subject to the satisfaction or waiver at or prior to the Effective Time of the following conditions:

SECTION 7.2 Conditions to Obligations of Parent and Merger Sub. The obligations of Parent and Merger Sub to effect the Merger shall be subject to the condition that Parent or Merger Sub shall have accepted Shares for payment pursuant to the Offer.

SECTION 8.1 Termination. This Agreement may be terminated and the Merger contemplated hereby may be abandoned at any time prior to the Effective Time, notwithstanding approval by the shareholders of the Company:

SECTION 8.2 Effect of Termination. In the event of the termination of this Agreement pursuant to Section 8.1, this Agreement shall forthwith become void and there shall be no liability or obligation on the part of any party hereto, except with respect to Sections 3.17, 4.5, 6.3(b), 6.8, this Section 8.2, Section 8.3 and Article IX, which shall survive such termination; provided, however, that nothing herein shall relieve any party from liability for any willful and material breach hereof, which, in the case of Parent, shall include liability to the Company for lost shareholder premium.

SECTION 8.3 Fees and Expenses. (a) Except as otherwise specifically provided herein, each party shall bear its own fees and expenses in connection with this Agreement and the transactions contemplated hereby.

SECTION 8.4. Amendment. This Agreement may be amended by the parties hereto by action taken by or on behalf of their respective Boards of Directors at any time prior to the Effective Time, whether before or after approval of this Agreement by the shareholders of the Company; provided, however, that, after approval of this Agreement by the shareholders of the Company, no amendment may be made which by Law requires the further approval of the

shareholders of the Company without such further approval. In the event the Publication Date has not occurred on or prior to November 17, 2006, the parties shall execute an appropriate amendment to this Agreement to reflect that Parent shall acquire all the Company Common Stock pursuant to the Merger and that the Offer shall not be commenced. This Agreement may not be amended except by an instrument in writing signed by the parties hereto.

SECTION 8.5 Waiver. At any time prior to the Effective Time, any party hereto may (i) extend the time for the performance of any of the obligations or other acts of the other parties hereto, (ii) waive any inaccuracies in the representations and warranties contained herein or in any document delivered pursuant hereto, and (iii) subject to the requirements of applicable Law, waive compliance with any of the agreements or conditions contained herein; provided, however, that, after adoption of this Agreement by the shareholders of the Company, no extension or waiver may be made which by Law requires the further approval of the shareholders of the Company without such further approval. Any such extension or waiver shall be valid if set forth in an instrument in writing signed by the party or parties to be bound thereby. The failure of any party to assert any rights or remedies shall not constitute a waiver of such rights or remedies.

SECTION 9.1 Non-Survival of Representations, Warranties, Covenants and Agreements. None of the representations, warranties, covenants and agreements in this Agreement or in any instrument delivered pursuant to this Agreement, including any rights arising out of any breach of such representations, warranties, covenants and agreements, shall survive the Effective Time, except for (i) those covenants and agreements contained herein that by their terms apply or are to be performed in whole or in part after the Effective Time and (ii) this Article IX.

SECTION 9.2 Notices. All notices, requests, claims, demands and other communications hereunder shall be in writing and shall be given (and shall be deemed to have been duly given upon receipt) by delivery in Person, by facsimile or by registered or certified mail (postage prepaid, return receipt requested) to the respective parties at the following addresses (or at such other address for a party as shall be specified by like notice):

SECTION 9.3 Certain Definitions. For purposes of this Agreement, the term:

SECTION 9.4 Severability. If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the transactions contemplated hereby is not affected in any manner adverse to any party.

SECTION 9.5 Entire Agreement; Assignment. This Agreement (including the Exhibits hereto), the Company Disclosure Schedule, the Parent Disclosure Schedule and the Confidentiality Agreement constitute the entire agreement among the parties with respect to the subject matter hereof and supersede all prior agreements and undertakings, both written and oral, among the parties, or any of them, with respect to the subject matter hereof. This Agreement shall not be assigned by operation of law or otherwise without the prior written consent of each of the other parties, except that Parent may assign all or any of its rights and obligations hereunder to any direct or indirect wholly-owned Subsidiary of Parent; provided, however, that no such assignment shall relieve the Parent of its obligations hereunder.

SECTION 9.6 Parties in Interest. This Agreement shall be binding upon and inure solely to the benefit of each party hereto, and nothing in this Agreement, express or implied, is intended to or shall confer upon any other Person (including any employee of the Company) any rights, benefits or remedies of any nature whatsoever under or by reason of this Agreement, other than (a) with respect to the provisions of Article II which shall be enforceable following the Effective Time by the holders of Options, Certificates, Restricted Company Common Stock, MJ Warrant and the PharmaBio Warrant, and (b) with respect to the provisions of Section 6.6 which shall inure to the benefit of the Persons or entities benefiting therefrom, in each case who are intended to be third party beneficiaries thereof.

SECTION 9.7 Governing Law. Except to the extent that the FBCA is applicable, this Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware (without giving effect to choice of law principles thereof). Each of the parties hereto agrees (a) that this Agreement involves at least $100,000.00, and (b) that this Agreement has been entered into by the parties hereto in express reliance upon 6 Del. C. § 2708.

SECTION 9.8 Headings. The descriptive headings contained in this Agreement are included for convenience of reference only and shall not affect in any way the meaning or interpretation of this Agreement.

SECTION 9.9 Counterparts. This Agreement may be executed and delivered (including by facsimile transmission) in one or more counterparts, and by the different parties hereto in separate counterparts, each of which when executed shall be deemed to be an original but all of which taken together shall constitute one and the same agreement.

SECTION 9.10 Specific Performance; Jurisdiction. Notwithstanding any other provision of this Agreement, the parties hereto agree that irreparable damage would occur, damages would be difficult to determine and would be an insufficient remedy and no other adequate remedy would exist at law or in equity, in each case in the event that any of the provisions of this Agreement were not performed in accordance with their specific terms or were otherwise breached (or any party hereto threatens such a breach). It is accordingly agreed that in the event of a breach or threatened breach of this Agreement, the other parties hereto shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically the terms and provisions of this Agreement in the Court of Chancery of the State of Delaware or, if under applicable law exclusive jurisdiction over such matter is vested in the federal courts, any court of the United States located in the State of Delaware, this being in addition to any other remedy to which they are entitled at law or in equity. Each party hereto irrevocably waives any defenses based on adequacy of any other remedy, whether at law or in equity, that might be asserted as a bar to the remedy of specific performance of any of the terms or provisions hereof or injunctive relief in any action brought therefor by any other party hereto. In addition, each of the parties hereto (i) irrevocably submits itself to the personal jurisdiction of the Court of Chancery of the State of Delaware or any court of the United States located in the State of Delaware in the event any dispute arises out of this Agreement or any of the transactions contemplated by this Agreement, (ii) agrees that it will not attempt to deny or defeat such personal jurisdiction by motion or other request for leave from any such court, (iii) agrees that it will not bring any action relating to this Agreement or any of the transactions contemplated by this Agreement in any court other than the Court of Chancery of the State of Delaware or, if under applicable law exclusive jurisdiction over such matter is vested in the federal courts, any court of the United States located in the State of Delaware and (iv) consents to service being made through the notice procedures set forth in Section 9.2. Each of the Company, Parent and Merger Sub hereby agrees that service of any process, summons, notice or document by U.S. registered mail to the respective addresses set forth in Section 9.2 shall be effective service of process for any Proceeding in connection with this Agreement or the transactions contemplated hereby.

SECTION 9.11 Parent Guarantee. Parent agrees to take all action necessary to cause Merger Sub or the Surviving Corporation, as applicable, to perform all of its respective

agreements, covenants and obligations under this Agreement. Parent unconditionally guarantees to the Company the full and complete performance by Merger Sub or the Surviving Corporation, as applicable, of its respective obligations under this Agreement and shall be liable for any breach of any representation, warranty, covenant or obligation of Merger Sub or the Surviving Corporation, as applicable, under this Agreement. This is a guarantee of payment and performance and not collectibility. Parent hereby waives diligence, presentment, demand of performance, filing of any claim, any right to require any proceeding first against Merger Sub or the Surviving Corporation, as applicable, protest, notice and all demands whatsoever in connection with the performance of its obligations set forth in this Section 9.11.

SECTION 9.12 Interpretation. When a reference is made in this Agreement to an Article, Section, Exhibit or Schedule, such reference shall be to an Article of, a Section of, or an Exhibit or Schedule to, this Agreement unless otherwise indicated. The table of contents and headings contained in this Agreement are for reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. Whenever the words “include”, “includes”, “including” or “such as” are used in this Agreement, they shall be deemed to be followed by the words “without limitation”. The word “will” shall be construed to have the same meaning and effect as the word “shall.” The words “hereof”, “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of this Agreement. The word “or” shall not be exclusive. The word “extent” in the phrase “to the extent” shall mean the degree to which a subject or other thing extends, and such phrase shall not mean simply “if”. The phrase “date hereof” or “date of this Agreement” shall be deemed to refer to November 5, 2006. Whenever used in this Agreement, any noun or pronoun shall be deemed to include the plural as well as the singular and to cover all genders. This Agreement shall be construed without regard to any presumption or rule requiring construction or interpretation against the party drafting or causing any instrument to be drafted. References to “this Agreement” shall include the Company Disclosure Schedule. All terms defined in this Agreement shall have the defined meanings when used in any certificate or other document made or delivered pursuant hereto unless otherwise defined therein. Any Contract, instrument or Law defined or referred to herein or in any Contract or instrument that is referred to herein means such Contract, instrument or Law as from time to time amended, modified or supplemented including (in the case of Contracts or instruments) by waiver or consent and (in the case of Law) by succession of comparable successor Law and references to all attachments thereto and instruments incorporated therein. References to a person are also to its permitted successors and assigns.

SECTION 9.13 Waiver of Jury Trial. Each of the parties to this Agreement irrevocably waives any and all right to trial by jury in any legal proceeding arising out of or relating to this Agreement or the transactions contemplated by this Agreement.

SECTION 1.01. Purchase and Sale of the Shares. On the terms and subject to the conditions of this Agreement, at the Closing, each Seller shall sell, transfer and deliver to Acquiror, and Acquiror shall purchase from such Seller, the Shares owned by such Seller free and clear of all Liens for a purchase price to such Seller (with respect to each such Seller, the “Purchase Price”), in cash, without interest, equal to the product of (a) the Closing Payment and (b) the Pro Rata Portion of such Seller.

SECTION 1.02. Closing. Subject to the provisions of Article V, the closing (the “Closing”) of the Acquisition shall take place at the offices of Cravath, Swaine & Moore LLP, 825 Eighth Avenue, New York, New York 10019, on the date of payment by Acquiror for shares of Company Common Stock tendered pursuant to the Offer, or if the conditions set forth in Article V are not satisfied or waived at such time, as soon as practicable thereafter. The date on which the Closing occurs is referred to in this Agreement as the “Closing Date”.

SECTION 1.03. Escrow. Simultaneously with the execution of this Agreement, (x) Acquiror, each Seller and an escrow agent to be mutually agreed (the “Escrow Agent”) shall enter into an Escrow Agreement in the form attached hereto as Exhibit A (the “Escrow Agreement”) and (y) each Seller shall (and Sellers shall cause Kos Investments and Kos Holdings to) deposit with the Escrow Agent (collectively, the “Share Certificates”) (i) certificates representing the Shares owned by Sellers, which certificates shall be duly endorsed in blank or accompanied by stock powers duly endorsed in blank in proper form for transfer, with appropriate transfer tax stamps, if any, affixed, (ii) certificates representing all of the issued and outstanding capital stock of Kos Holdings and (iii) certificates representing the 5,960,069 shares of Company Common Stock directly or indirectly owned by Kos Investments.

SECTION 1.04. Transactions To Be Effected at the Closing; Payment of Purchase Price.

SECTION 2.01. Execution and Delivery; Enforceability. Each Seller has the legal capacity to execute and deliver this Agreement and to consummate the transactions contemplated hereby. Each of the persons executing this Agreement on behalf of each Seller has full power and authority to execute and deliver this Agreement on behalf of such Seller and to thereby bind such Seller. The execution and delivery of this Agreement and the consummation of the transactions contemplated hereby have been duly authorized by all necessary action on the part of each Seller. This Agreement has been duly executed and delivered by each Seller and constitutes its valid and binding obligation, enforceable against it in accordance with its terms (except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights generally and general equity principles). If a Seller is married and the Shares set forth below such Seller’s signature to this Agreement constitute community property under applicable laws, this Agreement has been duly authorized, executed and delivered by, and constitutes the valid and binding agreement of, such Seller’s spouse.

SECTION 2.02. No Conflicts; Consents.

SECTION 2.03. The Shares. Except as set forth in Section 2.03 of the Disclosure Schedule, each Seller owns and has good and valid title to the number of Shares set forth below such Seller’s signature to this Agreement, free and clear of all Liens other than Permitted Liens. Assuming Acquiror has the requisite power and authority to be the lawful owner of the Shares, upon delivery to Acquiror at the Closing of certificates representing the Shares owned by Seller, duly endorsed by Seller for transfer to Acquiror, and upon Seller’s receipt of the applicable portion of the Closing Payment, good and valid title to such Shares will pass to Acquiror, free and clear of any Liens, other than those arising from acts of Acquiror or its Affiliates. Other than this Agreement, the Shares are not subject to any voting trust agreement or other Contract, including any Contract restricting or otherwise relating to the voting, dividend rights or disposition of the Shares, and no proxies with respect to the Shares have been granted by Sellers.

SECTION 2.04. Organization, Standing and Power. Each of Kos Investments and Kos Holdings is duly organized, validly existing and in good standing under the laws of Delaware and has all requisite corporate power and authority to own the Assets. Sellers have delivered to Acquiror true and complete copies of the certificate of incorporation and by-laws of Kos Investments and Kos Holdings, in each case as amended through the date of this Agreement.

SECTION 2.05. Assets.

SECTION 2.06. Capitalization of Kos Investments and Kos Holdings.

SECTION 2.07. Taxes. Except as set forth in Section 2.07 of the Disclosure Schedules, since July 1, 1997 (i) all Tax Returns required to be filed by or with respect to Kos Investments and Kos Holdings have been timely filed and such Tax Returns are true, correct and complete in all material respects, (ii) all Taxes of Kos Investments and Kos Holdings that are due and payable have been paid, (iii) since July 1, 1997, neither Kos Investments nor Kos Holdings has received written notice of any Proceeding against or audit of, or with respect to, any Taxes of Kos Investments or Kos Holdings that has not been finally resolved, (iv) there are no liens for Taxes (other than statutory liens for Taxes not yet due and payable) upon any of the assets of Kos Investments or Kos Holdings, (v) since July 1, 1997, neither Kos Investments nor Kos Holdings has been a “distributing corporation” or a “controlled corporation” in a distribution intended to qualify under Section 355(a) of the Code or otherwise as part of a “plan (or series of related transactions)” (within the meaning of Section 355(e) of the Code) of which the Merger is also a part, (vi) neither Kos Investments nor Kos Holdings is a party to or is bound by any Tax sharing, allocation or indemnification agreement or arrangement (other than solely between Kos Investments and Kos Holdings), (vii) for any period beginning on or after July 1, 1997, neither Kos Investments nor Kos Holdings (A) has been a member of a group filing a consolidated, combined or unitary Tax Return (other than a group consisting solely of Kos Investments and Kos Holdings or (B) has any liability for the Taxes of any person under Treasury regulation section 1.1502-6 (or any similar provision of state, local or foreign Law), (viii) Kos Investments is an S corporation as defined in Section 1361 of the Code and has been since July 1, 1997, Kos Holdings is a qualified subchapter S subsidiary as defined in Section 1361(b)(3)(B) of the Code and has been since July 1, 1997, (ix) neither Kos Investments nor Kos Holdings has been a party to a transaction that, as of the date of this Agreement, constitutes a “reportable transaction” for purposes of Section 6011 of the Code and applicable Treasury regulations thereunder (or a similar provision of state Law), (x) Kos Investments and Kos Holdings have properly and timely withheld all Taxes required to be withheld, and properly remitted to the applicable Taxing Authorities all Taxes required to be remitted for, with respect to amounts paid or owed to any employee, independent contractor, stockholder or other party , and (xi) neither Kos Investments nor Kos Holdings will be required to include in a taxable period ending after the Closing Date taxable income attributable to income that accrued in a prior taxable period (or portion of a taxable period) but was not recognized for tax purposes in any prior taxable period as a result of (A) a disposition by Kos Investments, nor Kos Holdings made by on or before the Closing Date that was accounted for as an “open transaction”, (B) a prepaid amount received on or prior to the Closing Date, (C) the installment method of accounting, (D) the completed contract method of accounting, (E) the long-term contract method of accounting, (F) the cash method of accounting or Section 481 of the Code or (G) any comparable provisions of state, local, or foreign tax law.

SECTION 2.08. Accounts; Safe Deposit Boxes; Powers of Attorney; Officers and Directors. Section 2.08 of the Disclosure Schedule sets forth (i) a true and correct list of all bank and savings accounts, certificates of deposit and safe deposit boxes of Kos Investments and Kos Holdings and those persons authorized to sign thereon, (ii) a true and correct list of all powers of attorney granted by Kos Investments or Kos Holdings and those persons authorized to act thereunder and (iii) a true and correct list of all officers and directors of Kos Investments and Kos Holdings.

SECTION 2.09. Brokers; Schedule of Fees and Expenses. Except as set forth in Section 2.09 of the Disclosure Schedule, no broker, finder or investment banker is entitled to any brokerage, finder’s or other fee or commission in connection with the Acquisition and the other transactions contemplated by the Merger Agreement based upon arrangements made by or on behalf of or with respect to Kos Investments or Kos Holdings.

SECTION 2.10. Private Offering. None of the Sellers, Kos Investments, Kos Holdings, their affiliates and their representatives has issued, sold or offered any security of Kos Investments or Kos Holdings to any person under circumstances that would cause the sale of the Shares, as contemplated by this Agreement, to be subject to the registration requirements of the Securities Act. None of the Sellers, Kos Investments, Kos Holdings, their affiliates and their representatives will offer the Shares or any part thereof or any similar securities for issuance or sale to, or solicit any offer to acquire any of the same from, anyone so as to make the issuance and sale of the Shares subject to the registration requirements of Section 5 of the Securities Act. Assuming the representations of Acquiror contained in Section 3.04 are true and correct, the sale and delivery of the Shares hereunder are exempt from the registration and prospectus delivery requirements of the Securities Act.

SECTION 2.11. Information. None of the information relating to Kos Investments, Kos Holdings or the Sellers provided by or on behalf of the Sellers for inclusion in the Offer Documents, the Schedule 14D-9 or any Proxy Statement will, at the respective times such documents are filed with the SEC or are first published, sent or given to shareholders of the Company, contain any untrue statement of material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading.

SECTION 2.12. Reliance. Sellers understand and acknowledge that Acquiror is entering into the Merger Agreement and the Shareholders Agreement in reliance upon the Sellers’ execution and delivery of this Agreement.

SECTION 3.01. Organization, Standing and Power. Acquiror is a corporation duly organized, validly existing and in good standing or active status under the laws of the jurisdiction in which it is incorporated and has all requisite corporate power and authority to own, operate and lease its properties and to carry on its business as it is now being conducted. Acquiror is duly qualified or licensed to do business, and is in good standing, in each jurisdiction where the character of the properties owned, leased or operated by it or the nature of its activities makes such qualification or licensing necessary.

SECTION 3.02. Authority; Execution and Delivery; Enforceability. Acquiror has all requisite power and authority to execute and deliver this Agreement and to consummate the transactions contemplated hereby. The execution and delivery by Acquiror of this Agreement and the consummation by it of the transactions contemplated hereby have been duly authorized by all necessary action of Acquiror, and no other corporate proceedings on the part of Acquiror are necessary to authorize this Agreement, to perform its obligations hereunder, or to consummate the transactions contemplated hereby. Neither the approval or adoption of this Agreement nor the consummation of the transactions contemplated hereby requires any approval of the shareholders of Acquiror. This Agreement has been duly executed and delivered by Acquiror and constitutes its valid and binding obligation, enforceable against it in accordance with its terms (except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights generally and general equity principles).

SECTION 3.03. No Conflicts; Consents.

SECTION 3.04. Securities Act. Acquiror is an Accredited Investor, as defined in Regulation 501 under the Securities Act. The Shares purchased by Acquiror pursuant to this Agreement are being acquired for investment only and not with a view to any public distribution thereof, and Acquiror shall not offer to sell or otherwise dispose of the Shares so acquired by it in violation of any of the registration requirements of the Securities Act.

SECTION 3.05. Available Funds. Acquiror has sufficient funds to (i) consummate the Acquisition, (ii) pay the applicable Purchase Price to each Seller and (iii) pay any and all fees and expenses incurred by Acquiror in connection with the Acquisition or the financing thereof.

SECTION 3.06. No Other Representations. Acquiror is not relying on any statement or representation made by or on behalf of Sellers with respect to its acquisition of the Shares other than the representations made in this Agreement.

SECTION 4.01. Covenants Relating to Conduct of Business. Sellers covenant and agree that, during the period from the date hereof until the Closing or earlier termination of this Agreement, neither Kos Investments nor Kos Holdings shall (and Sellers shall cause neither of Kos Investments nor Kos Holdings to) (i) acquire any additional assets or (ii) carry on any business or conduct any operations other than (A) those actions incidental to holding the Assets that are consistent with past practice and (B) performing its obligations under, and consummating the transactions contemplated by, this Agreement (including engaging counsel and other advisors the fees of which will be paid by Sellers) and repaying or causing to be repaid the following indebtedness: (a) a $75,000,000 line of credit between Kos Investments and Wachovia Bank N.A. (on which approximately $60,000,000 is outstanding as of the date hereof) and (b) a $25,000,000 Promissory Note dated August 2, 2006 between Kos Investments and Mary Jaharis. Without limiting the generality of the foregoing, between the date of this Agreement and the Closing, Sellers covenant and agree that none of Sellers shall, and Sellers shall cause Kos Investments or Kos Holdings to not, without the prior written consent of Acquiror:

SECTION 4.02. Contracts; Affiliate Transactions; Powers of Attorney. On or prior to the Closing Date, Sellers shall cause to be terminated, effective no later than the Closing, (a) all Contracts between Kos Investments or Kos Holdings, on the one hand, and any other person (including any Seller or any of their respective Affiliates), on the other hand, (other than this Agreement), (b) any interest any Seller or any of its Affiliates has in any asset (real or personal, tangible or intangible) (including the Assets) or Contract of Kos Investments or Kos Holdings and (c) all powers of attorney to any person granted by Kos Investments or Kos Holdings. Sellers shall cause the Stockholder’s Agreement dated as of July 1, 1988 among Kos Investments and the Sellers to be terminated effective as of the Closing Date.

SECTION 4.03. Access to Information; Confidentiality. (a) From the date hereof to the Closing or the earlier termination of this Agreement, upon reasonable prior written notice, Sellers shall cause Kos Investments and Kos Holdings to afford the officers, employees, auditors and representatives of Acquiror reasonable access, consistent with applicable Law, at all reasonable times to all books and records, all officers, directors, representatives, properties, and to all books and records of Kos Investments and Kos Holdings, and shall furnish Acquiror with all financial and other data and information as Acquiror, through its officers, employees or authorized representatives, may from time to time reasonably request in writing. Neither Kos Investments nor Kos Holdings shall be required to provide access to or to disclose information where such access or disclosure would jeopardize the attorney-client privilege of Kos Investments or Kos Holdings or contravene any Law. No investigation pursuant to this Section 4.03 or otherwise shall affect any representation or warranty in this Agreement or any condition to the obligations of the parties hereto.

SECTION 4.04. Further Action; Efforts. Subject to the terms and conditions of this Agreement, each party will use reasonable best efforts to take, or cause to be taken, all actions and to do, or cause to be done, all things necessary, proper or advisable under applicable laws and regulations to consummate the Acquisition and the other transactions contemplated by this Agreement as promptly as practicable and no party hereto shall take or cause to be taken any action which would reasonably be expected to prevent, impede or delay the consummation of the Acquisition; provided that this covenant shall not expand, limit or otherwise affect the rights and obligations of any party or any of its Affiliates under the Merger Agreement, the Shareholders Agreement or pursuant to the Offer.

SECTION 4.05. Fees and Expenses. Except as expressly set forth herein, all fees and expenses incurred in connection with the Acquisition and the other transactions contemplated hereby shall be paid by the party incurring such fees or expenses, whether or not the Acquisition is consummated; provided that all such fees and expenses of either Kos Investments or Kos Holdings which have not been paid at or prior to the Closing shall be for the account of Sellers who jointly and severally agree to pay such fees and expenses when due.

SECTION 4.06. Public Announcements. Each of Acquiror, on the one hand, and Sellers (on their own behalf and on behalf of Kos Investments and Kos Holdings), on the other hand, agrees that no public release or announcement concerning the Acquisition or the other transactions contemplated hereby shall be issued by any party without the prior written consent of Kos Investments and Acquiror (which consent shall not be unreasonably withheld or delayed), except as such release or announcement may be required by Law or the rules or regulations of any applicable Governmental Entity to which the relevant party is subject, wherever situated, in which case the party required to make the release or announcement shall use its reasonable best efforts to allow each other party reasonable time to comment on such release or announcement in advance of such issuance, it being understood that the final form and content of any such release or announcement, to the extent so required, shall be at the final discretion of the disclosing party.

SECTION 4.07. Preparation and Filing of Tax Returns.

SECTION 4.08. Amended Tax Returns for Preclosing Periods. Acquiror shall, at Sellers’ reasonable request, file amended Tax Returns for any period before the Closing Date and shall not amend any such Tax Returns without Sellers’ consent.

SECTION 4.09. Tax Cooperation. Each of Acquiror and Sellers shall provide the other party with such information and records and make such of its officers, directors, employees and agents available as may reasonably be requested by such other party in connection with the preparation of any Tax Return or any audit or other proceeding that relates to Kos Investments or Kos Holdings. Acquiror shall deliver to Sellers by the earlier to occur of 60 days after the end of Sellers’ taxable year-end for the year in which the Closing Date occurs, and 120 days after the Closing Date, a tax work paper preparation package or packages necessary to enable Sellers to prepare Tax Returns Sellers are obligated to prepare or cause to be prepared.

SECTION 4.10. Post-closing Cooperation. After the Closing, upon reasonable written notice, Sellers and Acquiror shall furnish or cause to be furnished to each other and their Affiliates and their respective employees, counsel, auditors and representatives access, during normal business hours, to such information and assistance relating to Kos Investments and Kos Holdings (to the extent within the control of such party) as is reasonably necessary for financial reporting, tax and accounting matters.

SECTION 4.11. Transfers of Shares. Each Seller agrees not to, directly or indirectly, (i) grant any proxies or enter into a voting trust or other agreement or arrangement with respect to the voting of any Shares or (ii) sell, transfer, pledge, encumber, assign, distribute, gift or otherwise dispose of (collectively, a “Transfer”), grant a Lien on, or enter into any Contract, option or other arrangement or understanding with respect to any Transfer (whether by actual disposition or effective economic disposition) of any of its Shares or any rights thereto or therein. The Sellers shall not seek or solicit any such Transfer or any such contract, option or other arrangement or understanding with respect to any Transfer, and shall promptly notify (and provide information requested by) Acquiror, if any Seller shall be approached or solicited, directly or indirectly, by any person with respect to any of the foregoing.

SECTION 4.12. Alternative Transaction Payment.

SECTION 4.13. Non-Solicitation. Sellers agree that they shall not, and shall ensure that Kos Investments, Kos Holdings and their respective agents and representatives shall not, (i) directly or indirectly, initiate, solicit, encourage or facilitate (including by way of furnishing information) any inquiries or the making of any proposal or offer with respect to an Acquisition Proposal, (ii) directly or indirectly, engage in any negotiations or discussions concerning, or provide access to its properties, or furnish or provide access to its books and records or any confidential information or data to, any person relating to an Acquisition Proposal or (iii) otherwise cooperate in any way with, or assist or participate in, facilitate or encourage any effort or attempt by any other Person to do or seek any of the foregoing; provided, however, that Sellers may (x) provide access or furnish information with respect to the Company and its Subsidiaries to any Person making an Acquisition Proposal (and its representatives) if at such time the Company is permitted to do so pursuant to a confidentiality agreement in accordance with Section 6.4 of the Merger Agreement and (y) engage in discussions or negotiations with the Person making an Acquisition Proposal (and its representatives) regarding such Acquisition Proposal if at such time the Company is permitted to engage in, and is actually engaged in, discussions or negotiations with such Person regarding such Acquisition Proposal. Sellers will, and will cause Kos Investments, Kos Holdings and their respective agents and representatives to, immediately cease and cause to be terminated any existing activities, discussions or negotiations with any persons conducted heretofore with respect to any Acquisition Proposal. Sellers shall also promptly (within 24 hours) notify Acquiror of the receipt by any Seller, Kos Investments, Kos Holdings or any of their respective agents or representatives of any Acquisition Proposal or any inquiry, proposal or offer that is reasonably likely to lead to an Acquisition Proposal after the date hereof, which notice shall include the identity of the person making such Acquisition Proposal or other inquiry, proposal or offer and the material terms and conditions thereof, and will keep Acquiror promptly and reasonably apprised of any related material developments, discussions and negotiations related thereto.

SECTION 4.14. Appraisal Rights. Sellers shall cause Kos Investments and Kos Holdings to consent to and approve the actions taken by the Board of Directors of the Company in approving the Merger Agreement, the Offer, the Merger and the other transactions contemplated by the Merger Agreement and to waive and agree not to exercise or assert, if applicable, any appraisal rights under Section 607.1323 through 607.1331 of the FBCA in connection with the Merger.

SECTION 4.15. 338(g) Election. The Acquiror will not make an election under Code section 338(g) with respect to Kos Investments or Kos Holdings.

SECTION 5.01. Conditions to Each Party’s Obligation To Effect the Acquisition. The respective obligation of each party to effect the Acquisition is subject to the satisfaction or waiver on or prior to the Closing Date of the following conditions:

SECTION 5.02. Conditions to Obligation of Acquiror. The obligation of Acquiror to effect the Acquisition is further subject to the following conditions:

SECTION 5.03. Conditions to Obligation of Sellers. The obligation of Sellers to effect the Acquisition is further subject to the conditions that:

SECTION 6.01. Termination. This Agreement shall automatically be terminated upon the termination of the Merger Agreement in accordance with its terms. Consummation of the Acquisition shall not result in the termination of this Agreement.

SECTION 6.02. Effect of Termination. In the event of termination of this Agreement, this Agreement shall forthwith become void and have no effect (except as specified in the following sentence), without any liability or obligation on the part of Sellers or Acquiror, except to the extent that such termination results from the willful and material breach by a party of any representation, warranty or covenant set forth herein. Notwithstanding the foregoing, Section 2.15, Section 4.03(b), Section 4.05, Section 4.06, this Section 6.02 and Article VIII shall survive such termination.

SECTION 6.03. Amendments. This Agreement may be amended by the parties at any time by an instrument in writing signed on behalf of Acquiror and Sellers holding a majority of the aggregate Pro Rata Portions.

SECTION 7.01. Indemnification by Sellers.

SECTION 7.02. Indemnification by Acquiror.

SECTION 7.03. Calculation of Losses.

SECTION 7.04. Term of Indemnification. The rights to indemnification pursuant to Section 7.01 and 7.02 shall terminate upon the second anniversary of the Closing Date for all claims, except that rights to indemnification under Sections 7.01(a)(iii) and (iv) and Section 7.02(a)(iii) shall not terminate until 60 days after the expiration of the statute of limitations. Notwithstanding the foregoing, the rights to indemnification pursuant to any portion of Section 7.01 or 7.02 shall not terminate with respect to any item as to which the person to be indemnified shall have, before the expiration of the applicable period, previously made a claim by delivering a notice of such claim which notice shall specify in reasonable detail the basis for such claim and the computation of the amount thereof. The dates upon which rights to indemnification hereunder terminate are referred to herein as the “Indemnification Expiration Dates”.

SECTION 7.05. Procedures.

SECTION 7.06. Survival. The representations, warranties in this Agreement, and in any document delivered in connection herewith, of or by Sellers shall survive the Closing until the applicable Indemnification Expiration Dates. The representations, warranties in this

SECTION 8.01. Notices. All notices, requests, claims, demands and other communications hereunder shall be in writing and shall be given (and shall be deemed to have been duly given upon receipt) by delivery in person, by facsimile or by registered or certified mail (postage prepaid, return receipt requested) to the respective parties at the following addresses (or at such other address for a party as shall be specified by like notice):

SECTION 8.02. Definitions. For purposes of this Agreement:

SECTION 8.03. Severability. If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the transactions contemplated hereby is not affected in any manner adverse to any party.

SECTION 8.04. Entire Agreement; Third Parties; Assignment. This Agreement, taken together with the Disclosure Schedule, (a) constitute the entire agreement among the parties with respect to the subject matter hereof and thereof and supersede all prior agreements and undertakings, both written and oral, among the parties, or any of them, with respect to the subject matter hereof and thereof and (b) except as provided in Section 7.01 and 7.02 are not intended to confer upon any person other than the parties any rights or remedies. This Agreement shall not be assigned by operation of law or otherwise without the prior written consent of each of the other parties, except that Acquiror may assign all or any of its rights and obligations hereunder to any direct or indirect wholly-owned Subsidiary of Acquiror; provided, however, that no such assignment shall relieve Acquiror of its obligations hereunder.

SECTION 8.05. Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware (without giving effect to choice of law principles thereof). Each of the parties hereto agrees that this Agreement (a) involves at least $100,000.00, and (b) has been entered into by the parties hereto in express reliance upon 6 Del. C. § 2708.

SECTION 8.06. Headings. The descriptive headings contained in this Agreement are included for convenience of reference only and shall not affect in any way the meaning or interpretation of this Agreement.

SECTION 8.07. Counterparts. This Agreement may be executed and delivered (including by facsimile transmission) in one or more counterparts, and by the different parties hereto in separate counterparts, each of which when executed shall be deemed to be an original but all of which taken together shall constitute one and the same agreement.

SECTION 8.08. Specific Performance; Jurisdiction. Notwithstanding any other provision of this Agreement, the parties hereto agree that irreparable damage would occur, damages would be difficult to determine and would be an insufficient remedy and no other adequate remedy would exist at law or in equity, in each case in the event that any of the provisions of this Agreement were not performed in accordance with their specific terms or were otherwise breached (or any party hereto threatens such a breach). It is accordingly agreed that in the event of a breach or threatened breach of this Agreement, the other parties hereto shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically the terms and provisions of this Agreement in the Court of Chancery of the State of Delaware or, if under applicable law exclusive jurisdiction over such matter is vested in the federal courts, any court of the United States located in the State of Delaware, this being in addition to any other remedy to which they are entitled at law or in equity. Each party hereto irrevocably waives any defenses based on adequacy of any other remedy, whether at law or in equity, that might be asserted as a bar to the remedy of specific performance of any of the terms or provisions hereof or injunctive relief in any action brought therefor by any other party hereto. In addition, each of the parties hereto (i) irrevocably submits itself to the personal jurisdiction of the Court of Chancery of the State of Delaware or any court of the United States located in the State of Delaware in the event any dispute arises out of this Agreement or any of the transactions contemplated by this Agreement, (ii) agrees that it will not attempt to deny or defeat such personal jurisdiction by motion or other request for leave from any such court, (iii) agrees that it will not bring any action relating to this Agreement or any of the transactions contemplated by this Agreement in any court other than the Court of Chancery of the State of Delaware or, if under applicable law exclusive jurisdiction over such matter is vested in the federal courts, any court of the United States located in the State of Delaware and (iv) consents to service being made through the notice procedures set forth in Section 8.01. Each of the parties hereby agrees that service of any process, summons, notice or document by U.S. registered mail to the respective addresses set forth in Section 8.01 shall be effective service of process for any Proceeding in connection with this Agreement or the transactions contemplated hereby.

SECTION 8.09. Interpretation. When a reference is made in this Agreement to an Article, Section, Exhibit or Schedule, such reference shall be to an Article of, a Section of, or an Exhibit or Schedule to, this Agreement unless otherwise indicated. The table of contents and headings contained in this Agreement are for reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. Whenever the words “include”, “includes”, “including” or “such as” are used in this Agreement, they shall be deemed to be followed by the words “without limitation”. The word “will” shall be construed to have the same meaning and effect as the word “shall.” The words “hereof”, “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of this Agreement. The word “or” shall not be exclusive. The word “extent” in the phrase “to the extent” shall mean the degree to which a subject or other thing extends, and such phrase shall not mean simply “if”. The phrase “date hereof” or “date of this Agreement” shall be deemed to refer to November 5, 2006. Whenever used in this Agreement, any noun or pronoun shall be deemed to include the plural as well as the singular and to cover all genders. This Agreement shall be construed without regard to any presumption or rule requiring construction or interpretation against the party drafting or causing any instrument to be drafted. References to “this Agreement” shall include the Disclosure Schedule. All terms defined in this Agreement shall have the defined meanings when used in any certificate or other document made or delivered pursuant hereto unless otherwise defined therein. Any Contract, instrument or Law defined or referred to herein or in any Contract or instrument that is referred to herein means such Contract, instrument or Law as from time to time amended, modified or supplemented, including (in the case of Contracts or instruments) by waiver or consent and (in the case of Law) by succession of comparable successor Law and references to all attachments thereto and instruments incorporated therein. References to a person are also to its permitted successors and assigns.

SECTION 8.10. Waiver of Jury Trial. Each of the parties to this Agreement irrevocably waives any and all right to trial by jury in any legal proceeding arising out of or relating to this Agreement or the transactions contemplated by this Agreement.

SECTION 8.11. Disclosure Schedule. The parties acknowledge and agree that (i) the Disclosure Schedule may include certain items and information solely for informational purposes for the convenience of Acquiror and (ii) the disclosure by Sellers of any matter in the Disclosure Schedule shall not be deemed to constitute an acknowledgment by Sellers that the matter is required to be disclosed by the terms of this Agreement or that the matter is material.

SECTION 8.12. Legends. Each Seller shall cause the Shares to bear a legend, stating that they are subject to the terms of this Agreement.

SECTION 1.2 Company Actions. (a) The Company hereby approves of and consents to the Offer, the Merger and the other transactions contemplated by this Agreement.

SECTION 1.5 Closing; Effective Time. Subject to the provisions of Article VII, the closing of the Merger (the “Closing”) shall take place at the offices of Cravath, Swaine & Moore LLP, Worldwide Plaza, 825 Eighth Avenue, New York, New York 10019, as soon as

SECTION 2.1 Conversion of Securities. At the Effective Time, by virtue of the Merger and without any action on the part of Parent, Merger Sub, the Company or the holders of any of the following securities, the following shall occur:

SECTION 3.3 Capitalization. (a) The authorized capital stock of the Company consists of (i) 100,000,000 Shares, and (ii) 10,000,000 shares of preferred stock, par value $0.01 per share (the “Preferred Stock”).

SECTION 4.5 Brokers. No broker, finder or investment banker (other than Banc of America Securities LLC, whose fees shall be paid by Parent) is entitled to any brokerage,

finder’s or other fee or commission in connection with the transactions contemplated by this Agreement based upon arrangements made by and on behalf of Parent or Merger Sub.

SECTION 4.9 Available Funds. Parent has sufficient funds to (i) consummate the Offer, (ii) pay the aggregate Merger Consideration and (iii) pay any and all fees and expenses in connection with the Offer and the Merger or the financing thereof.

(b) On the date of commencement of the Offer, Parent and Merger Sub shall file with the SEC a Tender Offer Statement on Schedule TO with respect to the Offer, which shall contain an offer to purchase and a related letter of transmittal and summary advertisement (such Schedule TO and the documents included therein pursuant to which the Offer will be made, together with any supplements or amendments thereto, the “Offer Documents”). Each of Parent, Merger Sub and the Company shall promptly correct any information provided by it for use in the Offer Documents if and to the extent that such information shall have become false or misleading in any material respect, and each of Parent and Merger Sub shall take all steps necessary to amend or supplement the Offer Documents and to cause the Offer Documents as so amended or supplemented to be filed with the SEC and the Offer Documents as so amended or supplemented to be disseminated to the Company’s shareholders, in each case as and to the extent required by applicable federal securities laws. Parent, Merger Sub and the Company will cooperate and consult with each other and their respective counsel in the preparation of the Offer Documents. Without limiting the generality of the foregoing, the Company will furnish to Parent the information relating to it required by the Exchange Act and the rules and regulations promulgated thereunder to be set forth in the Offer Documents. Parent and Merger Sub shall (i) provide the Company and its counsel in writing with any comments Parent, Merger Sub or their counsel may receive from the SEC or its staff with respect to the Offer Documents promptly after the receipt of such comments, (ii) consult with the Company and its counsel prior to responding to any such comments, and (iii) provide the Company and its counsel in writing with any comments or responses thereto of Parent, Merger Sub or their counsel. Parent and Merger Sub shall give the Company a reasonable opportunity to review and comment on the Offer Documents and any amendments thereto.

(c) Parent shall provide or cause to be provided to Merger Sub on a timely basis the funds necessary to purchase any Shares that Merger Sub becomes obligated to purchase pursuant to the Offer.

(d) The Company hereby grants to Parent and Merger Sub an irrevocable option (the “Top-Up Option”) to purchase at a price per share equal to the Offer Price up to that number of newly issued shares of the Company Common Stock (the “Top-Up Shares”) equal to the lowest number of shares of Company Common Stock that, when added to the number of shares of Company Common Stock, directly or indirectly, owned by Parent and Merger Sub at the time of exercise of the Top-Up Option shall constitute one share more than eighty percent (80%) of the Fully Diluted Shares immediately after the issuance of the Top-Up Share. The Top-Up Option shall be exercisable only once, at such time as Parent and Merger Sub, directly or

indirectly, own at least 70% of the Fully Diluted Shares and prior to the fifth Business Day after the Expiration Date or the expiration date of any subsequent offering period. Such Top-Up Option shall not be exercisable to the extent the number of shares of Company Common Stock subject thereto (taken together with the number of Fully Diluted Shares outstanding at such time) exceeds the number of authorized shares of Company Common Stock available for issuances. The obligation of the Company to deliver the Top-Up Shares upon the exercise of the Top-Up Option is subject to the condition that no provision of any applicable Law and no Judgment, injunction, order or decree shall prohibit the exercise of the Top-Up Option or the delivery of the Top-Up Shares in respect of such exercise. The parties shall cooperate to ensure that the issuance of the Top-Up Shares is accomplished consistent with all applicable legal requirements of all Governmental Entities, including compliance with an applicable exemption from registration of the Top-Up Shares under the Securities Act. In the event Parent and Merger Sub wish to exercise the Top-Up Option, Merger Sub shall give the Company one (1) Business Day prior written notice specifying the number of shares of the Company Common Stock that are or will be, directly or indirectly, owned by Parent and Merger Sub immediately preceding the purchase of the Top-Up Shares and specifying a place and a time for the closing of such purchase. The Company shall, as soon as practicable following receipt of such notice, deliver written notice to Merger Sub specifying the number of Top-Up Shares. At the closing of the purchase of Top-Up Shares, the portion of the purchase price owed by Parent or Merger Sub upon exercise of such Top-Up Option shall be paid to the Company (i) in cash by wire transfer or cashier’s check or (ii) by issuance by Merger Sub to the Company of a promissory note on terms reasonably satisfactory to the Company.

(b) On the date the Offer Documents are filed with the SEC or as soon as practicable thereafter, the Company shall file with the SEC a Solicitation/Recommendation Statement on Schedule 14D-9 with respect to the Offer (such Schedule 14D-9, as amended from time to time, the “Schedule 14D-9”) containing the recommendations referred to in Section 3.4(b) and shall mail the Schedule 14D-9 to the holders of Company Common Stock. Each of the Company, Parent and Merger Sub shall promptly correct any information provided by it for use in the Schedule 14D-9 if and to the extent that such information shall have become false or misleading in any material respect, and the Company shall take all steps necessary to amend or supplement the Schedule 14D-9 and to cause the Schedule 14D-9 as so amended or supplemented to be filed with the SEC and disseminated to the Company’s shareholders, in each case as and to the extent required by applicable federal securities laws. Parent, Merger Sub and the Company will cooperate and consult with each other and their respective counsel in the preparation of the Schedule 14D-9. Without limiting the generality of the foregoing, Parent will furnish to the Company the information relating to it required by the Exchange Act and the rules and regulations promulgated thereunder to be set forth in the Schedule 14D-9. The Company shall (i) provide Parent and its counsel in writing with any comments the Company or its counsel may receive from the SEC or its staff with respect to the Schedule 14D-9 promptly after the receipt of such comments, (ii) consult with Parent and Merger Sub and their counsel prior to responding to any such comments, and (iii) provide Parent and Merger Sub and their counsel in writing with any comments or responses thereto of the Company or its counsel. The Company

shall give Parent and Merger Sub a reasonable opportunity to review and comment on the Schedule 14D-9 and any amendments thereto.

(c) In connection with the Offer, the Company shall cause its transfer agent to furnish Merger Sub promptly with mailing labels containing the names and addresses of the record holders of Company Common Stock as of a recent date and of those persons becoming record holders subsequent to such date, together with copies of all lists of shareholders, security position listings and computer files and all other information in the Company’s possession or control regarding the beneficial owners of Company Common Stock, and shall furnish to Merger Sub such information and assistance (including updated lists of shareholders, security position listings and computer files) as Parent may reasonably request in communicating the Offer to the Company’s shareholders. Subject to the requirements of applicable Law, and except for such steps as are necessary to disseminate the Offer Documents and any other documents necessary to consummate the transactions contemplated by this Agreement, Parent and Merger Sub shall hold in confidence the information contained in any such labels, listings and files, shall use such information only in connection with the Offer and the Merger and, if this Agreement shall be terminated, shall, upon request, deliver to the Company all copies of such information then in their possession.

(b) Promptly after consummation of the Offer, by virtue of consummation of the Offer and without any action on the part of the holder of each Non-Detachable Common Stock Purchase Warrant dated as of December 19, 2002 by and between Mary Jaharis and the Company (the “MJ Warrant”), the holder of the MJ Warrant shall be entitled to receive an amount in cash equal to the amount of cash that the holder of the Company Common Stock deliverable upon exercise of the MJ Warrant would have been entitled to receive in the Offer if the MJ Warrant had been exercised immediately before the Offer.

(b) Pursuant to the Merger, the bylaws of Merger Sub in effect immediately prior to the Effective Time shall be the bylaws of the Surviving Corporation until thereafter amended in accordance with their terms and the articles of incorporation of the Surviving Corporation and as provided by Law.

(a) subject to Section 2.3, each Share issued and outstanding immediately prior to the Effective Time (other than any Shares to be canceled pursuant to Section 2.1(b) or to be converted pursuant to Section 2.1(c), but including Shares subject to vesting or other restrictions (the “Restricted Company Common Stock”)) shall be converted into the right to receive the highest price per Share paid pursuant to the Offer in cash without interest (the “Merger Consideration”);

(b) each Share held in the treasury of the Company and each Share owned by Parent or Merger Sub immediately prior to the Effective Time shall be canceled and retired without any conversion thereof, and no payment or distribution shall be made with respect thereto;

(c) all of the Shares owned by Kos Investments, Inc. or Kos Holdings, Inc. immediately prior to the Effective Time shall be converted, in the aggregate, into a number of shares equal to the same percentage of the fully-diluted outstanding stock of the Surviving Corporation as such shares currently represent of the Fully Diluted Shares; and

(d) each share of common stock of Merger Sub issued and outstanding immediately prior to the Effective Time shall be converted into one share of common stock of the Surviving Corporation.

Except as set forth in Sections 2.1(b) and (c), (i) at the Effective Time, all Shares of Company Common Stock shall cease to be outstanding, shall automatically be cancelled and shall cease to exist and (ii) each holder of a certificate that immediately prior to the Effective Time represented any such Shares of Company Common Stock (a “Certificate”) shall cease to have any rights with respect thereto, except the right to receive the Merger Consideration.

(b) Immediately after the consummation of the Offer, each outstanding award of Restricted Company Common Stock granted under the Company’s 1996 Stock Option Plan or the Kos Incentive Plan, or otherwise, not acquired by Parent or Merger Sub pursuant to the Offer shall vest in full and cease to be subject to restrictions and the holders of such awards of Restricted Company Common Stock outstanding immediately prior to the Effective Time shall be entitled to receive the Merger Consideration pursuant to Section 2.1(a).

(c) At the Effective Time, the holder of the Warrant Agreement dated as of January 1, 2002, by and between the Company and PharmaBio Development Inc. (the “PharmaBio Warrant”) shall be entitled to receive upon exercise of the PharmaBio Warrant, if not already exercised prior to the Effective Time, during the period specified therein the amount in cash, without interest, equal to (i) the amount of cash that a holder of the Company Common Stock deliverable upon exercise of the PharmaBio Warrant would have been entitled to receive in the Merger if the PharmaBio Warrant had been exercised immediately before the Merger minus (ii) the exercise price of the PharmaBio Warrant, in accordance with the terms and conditions of the PharmaBio Warrant.

(b) Promptly after the Effective Time, Parent shall cause to be mailed to each record holder, as of the Effective Time, of a Certificate which immediately prior to the Effective Time represented Shares, a form of letter of transmittal (which shall be in customary form and shall specify that delivery shall be effected, and risk of loss and title to the Certificates shall pass, only upon proper delivery of the Certificates to the Paying Agent) and instructions for use in effecting the surrender of the Certificates for payment of the Merger Consideration. Upon surrender to the Paying Agent of a Certificate, together with such letter of transmittal, duly completed and validly executed in accordance with the instructions thereto, and such other documents as may be required pursuant to such instructions, the holder of such Certificate shall be entitled to receive upon such surrender of such Certificate the Merger Consideration pursuant to Section 2.1(a) and such Certificate shall then be canceled. If payment of the Merger Consideration is to be made to a Person other than the Person in whose name the Certificate is registered, it shall be a condition of payment that the Certificate so surrendered shall be properly endorsed or shall be otherwise in proper form for transfer and that the Person requesting such payment shall have paid any transfer and other Taxes required by reason of the payment of the Merger Consideration to a Person other than the registered holder of the Certificate surrendered

or shall have established to the satisfaction of the Surviving Corporation that such Tax either has been paid or is not applicable. Until surrendered as contemplated by this Section 2.3(b), each Certificate shall be deemed at any time after the Effective Time to represent only the right to receive upon such surrender of such Certificate the Merger Consideration pursuant to Section 2.1(a). No interest shall be paid or accrue on the cash payable upon surrender of any Certificate.

(c) At any time following the date that is twelve months after the Effective Time, the Surviving Corporation shall be entitled to require the Paying Agent to deliver to it any portion of the Exchange Fund which have been made available to the Paying Agent and which have not been disbursed to holders of Certificates and thereafter such holders shall be entitled to look to Parent and the Surviving Corporation (subject to abandoned property, escheat or other similar laws) only as general creditors thereof with respect to the Merger Consideration payable upon due surrender of their Certificates. The Surviving Corporation shall pay all charges and expenses, including those of the Paying Agent, incurred by it in connection with the exchange of Shares for the Merger Consideration and other amounts contemplated by this Article II. None of Parent, Merger Sub, the Company or the Paying Agent shall be liable to any person in respect of any cash delivered to a public official pursuant to any applicable abandoned property, escheat or similar law. The Merger Consideration paid in accordance with the terms of this Article II in respect of Certificates that have been surrendered in accordance with the terms of this Agreement shall be deemed to have been paid in full satisfaction of all rights pertaining to the Shares of Company Common Stock represented thereby.

(d) After the Effective Time, the stock transfer books of the Company shall be closed and thereafter there shall be no further registration of transfers of Shares that were outstanding prior to the Effective Time. After the Effective Time, Certificates presented to the Surviving Corporation for transfer shall be canceled and exchanged for the consideration provided for, and in accordance with the procedures set forth in, this Article II.

(e) In the event that any Certificate shall have been lost, stolen or destroyed, upon the making of an affidavit of that fact by the person claiming such Certificate to be lost, stolen or destroyed, and, if reasonably requested, the posting by the holder of a bond in customary amount as indemnity against any claim that may be made against it with respect to the Certificate, the Paying Agent will deliver in exchange for the lost, stolen or destroyed Certificate the Merger Consideration payable in respect of the Shares represented by such Certificate pursuant to this Article II.

(f) The Paying Agent shall invest the cash included in the Exchange Fund, as directed by Parent, on a daily basis in (i) obligations of or guaranteed by the United States of America or any agency or instrumentality thereof, (ii) money market accounts, certificates of deposit, bank repurchase agreement or banker’s acceptances of, or demand deposits with, commercial banks having a combined capital and surplus of at least $5,000,000,000, or (iii) commercial paper obligations rated P-1 or A-1 or better by Standard &Poor’s Corporation or Moody’s Investor Services, Inc. Any profit or loss resulting from, or interest and other income produced by, such investments shall be for the account of Parent. If for any reason (including losses) the cash in the Exchange Fund shall be insufficient to fully satisfy all of the payment obligations to be made in cash by the Exchange Agent hereunder (but subject to Section 2.4),

Parent shall promptly deposit cash into the Exchange Fund in an amount which is equal to the deficiency in the amount of cash required to fully satisfy such cash payment obligations.

(b) Section 3.1(b) of the Company Disclosure Schedule sets forth, for each Company Joint Venture, the interest held by the Company and the jurisdiction in which such Company Joint Venture is organized. The term “Company Joint Venture” means any corporation or other entity (including partnership, limited liability company and other business association) that is not a Subsidiary of the Company and in which the Company or one or more of the Company’s Subsidiaries owns an equity interest (other than equity interests held for passive investment purposes which are less than 10% of any class of the outstanding voting securities or other equity of any such entity and equity interests in which the invested capital associated with the Company’s or its Subsidiaries’ interest is less than $1,000,000, as reasonably determined by the Company). Interests in the Company Joint Ventures held by the Company are held directly by the Company or one of its Subsidiaries, free and clear of all security interests, liens, claims, pledges, agreements, limitations in voting or transfer rights, charges or other encumbrances of any nature whatsoever (“Liens”), except any such Liens that would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. Neither the Company nor any Subsidiary thereof has any obligation or commitment to make any capital contribution to any Company Joint Venture.

(b) As of November 2, 2006: (i) 47,630,852 Shares were issued and outstanding, all of which were validly issued, fully paid and nonassessable and were issued free of preemptive rights; (ii) an aggregate of 10,001,300 Shares was reserved for issuance upon or otherwise deliverable in connection with the grant of equity-based awards or the exercise of outstanding Options issued pursuant to the Company’s 1996 Stock Option Plan, the Kos Incentive Plan, the Kos 401K Plan (together with the ESPP, the “Company Stock Plans”); (iii) no shares of Preferred Stock were outstanding and (iv) an aggregate of 782,111 Shares was reserved for issuance or delivery upon the exercise of the non-detachable warrants granted in connection with the Revolving Credit and Loan Agreement by and between the Company and Mary Jaharis, dated as of December 19, 2002 and the warrants granted in connection with the PharmaBio Warrant. Since the close of business on November 2, 2006, until the date hereof, no options to purchase shares of Company Common Stock (including any phantom stock rights, stock appreciation rights or similar rights), Restricted Company Common Stock or Preferred Stock have been granted and no shares of Company Common Stock or Preferred Stock have been issued, except for Shares issued pursuant to the exercise of Options, the Kos Incentive Plan, the Kos 401K Plan and the ESPP, in each case in accordance with their terms. Section 3.3(b) of the Company Disclosure Schedule sets forth, as of the date specified thereon, each equity-based award (including Restricted Company Common Stock) and Option outstanding whether or not under the Company Stock Plans (specifying whether under the Company Stock Plans or outside of the Company Stock Plans), the number of Shares issuable thereunder and the expiration date and exercise or conversion price relating thereto.

(c) As of the date of this Agreement, except as set forth in clauses (a) and (b) of this Section 3.3: (i) there are not outstanding or authorized any (A) shares of capital stock or other voting securities of the Company, (B) securities of the Company convertible into or exchangeable for shares of capital stock or voting securities of the Company or (C) options (including any phantom stock rights, stock appreciation rights or similar rights) or other rights to acquire from the Company, or any obligation of the Company to issue, any capital stock, voting securities or securities convertible into or exchangeable for capital stock or voting securities of the Company (collectively, “Company Securities”); (ii) there are no outstanding obligations of the Company to repurchase, redeem or otherwise acquire any Company Securities; and (iii) there are no statutory or contractual preemptive rights, other options, calls, warrants or other rights, agreements, arrangements or commitments of any character relating to the issued or unissued capital stock or other voting securities of the Company to which the Company is a party. No Subsidiary of the Company owns any Shares.

(d) Each of the outstanding shares of capital stock and voting securities of the Company’s Subsidiaries is duly authorized, validly issued, fully paid and nonassessable and all such shares are owned by the Company, free and clear of all Liens, except any such Liens that would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. There are no (i) outstanding options or other rights of any kind which obligate the Company or its Subsidiaries to issue or deliver any shares of capital stock, voting securities or other equity interests of the Subsidiaries of the Company or any securities or obligations convertible into or exchangeable into or exercisable for any shares of capital stock, voting securities or other equity interests of such Subsidiaries, (ii) outstanding obligations of the Company or its Subsidiaries to repurchase, redeem or otherwise acquire any securities or obligations convertible into or exchangeable into or exercisable for any shares of capital stock,

voting securities or other equity interests of such Subsidiaries; or (iii) other options, calls, warrants or other rights, agreements, arrangements or commitments of any character relating to the issued or unissued capital stock or other equity interests or voting securities of the Subsidiaries of the Company to which the Company or its Subsidiaries is a party.

(b) The Board of Directors of the Company has, by resolutions duly adopted, at a meeting duly called and held (i) authorized the execution, delivery and performance of this Agreement and all of the transactions contemplated hereby, (ii) approved, adopted and declared advisable, this Agreement and the transactions contemplated hereby, including the Offer and the Merger, in accordance with the FBCA, (iii) determined that the terms of this Agreement and the transactions contemplated hereby, including the Offer and the Merger, are fair to and in the best interests of the Company and the shareholders of the Company, (iv) recommended that the holders of Company Common Stock accept the Offer and tender their Shares pursuant to the Offer (the “Offer Recommendation”) and that the holders of Company Common Stock approve this Agreement and the transactions contemplated hereby, including the Merger (the “Merger Recommendation”).

(c) The Board of Directors of the Company has, by resolutions duly adopted at a meeting duly called and held, approved and declared advisable, the Shareholders Agreement and the Stock Purchase Agreement and, prior to the execution of the Shareholders Agreement and this Agreement, has taken all necessary actions to exempt the Investments Stock Purchase, the Shareholders Agreement and this Agreement and the transactions contemplated hereby and thereby from any and all applicable antitakeover statutes including FBCA § 607.0901 (“affiliated transactions” statute) and FBCA § 607.0902 (“control-share acquisitions” statute).

(b) The execution, delivery and performance of this Agreement by the Company and the consummation of the Offer, the Merger or the Investments Stock Purchase do not and will not require any notice, consent, approval, authorization or permit of, action by, filing with or notification to, any federal, state, local or foreign governmental or regulatory (including stock exchange) authority, agency, court, commission, or other governmental body (each, a “Governmental Entity”) to be obtained or made by the Company, except for (i) applicable requirements of the Securities Act of 1933, as amended (the “Securities Act”) and the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and the rules and regulations promulgated thereunder (including the filing of the Schedule 14D-9, the proxy statement to be sent to shareholders of the Company in connection with the Shareholders Meeting (the “Proxy Statement”) and any information statement (the “Information Statement”) required under Rule 14f-1 in connection with the Offer), and state securities, takeover and “blue sky” laws, (ii) the applicable requirements of the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”), (iii) the applicable requirements of antitrust or other competition laws of jurisdictions other than the United States or investment laws relating to foreign ownership (“Foreign Antitrust and Investment Laws”), (iv) the applicable requirements of the NASDAQ Stock Market LLC (“Nasdaq”), (v) the filing with the Florida Department of State, Division of Corporations and the Secretary of State of the State of Delaware of the Articles of Merger as required by the FBCA and the Delaware General Corporation Law, (vi) any notices required under the U.S. Federal Food, Drug, and Cosmetic Act, as amended (the “FDA Act”) or similar laws of jurisdictions other than the United States, and (vii) any such consent, approval, authorization, permit, action, filing or notification the failure of which to make or obtain would not (A) prevent or materially delay the Company from performing its obligations under this Agreement in any material respect, (B) materially delay consummating the transactions contemplated hereby on a timely basis, or (C) individually or in the aggregate, have or reasonably be expected to have, a Material Adverse Effect.

(b) The Company and its Subsidiaries have all registrations, applications, licenses, requests for approvals, exemptions, permits and other regulatory authorizations (“Authorizations”) from Governmental Entities required to conduct their respective businesses as now being conducted, except for any such Authorizations the absence of which would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. Except for any failures to be in compliance that would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect, the Company and its Subsidiaries are in compliance with all such Authorizations. The Company has made available to Parent all material Authorizations from the FDA.

(c) None of the Company, any of its Subsidiaries or any officers, employees or agents of the Company or any of its Subsidiaries is currently, or has been, excluded, debarred or otherwise made ineligible to participate in federal health care programs. The Company has no Knowledge of any facts concerning the Company, any of its Subsidiaries or any officers, employees or agents of the Company or any of its Subsidiaries that are reasonably likely to form the basis for an exclusion or debarment of any such entities.

(d) The Company and its Subsidiaries have not been notified in writing of any material failure (or any material investigation with respect thereto) by them or any licensor, licensee, partner or distributor to comply with, or maintain systems and programs to ensure compliance with any Drug Law pertaining to programs or systems regarding product quality, notification of facilities and products, corporate integrity, pharmacovigilance and conflict of interest including Current Good Manufacturing Practice Requirements, Good Laboratory Practice Requirements, Good Clinical Practice Requirements, Establishment Registration and Product Listing requirements, requirements applicable to the debarment of individuals, requirements applicable to the conflict of interest of clinical investigators and Adverse Drug Reaction Reporting requirements, in each case with respect to any products of the Company or its Subsidiaries.

(e) The Company and its Subsidiaries have not been notified in writing of any material failure (or any material investigation with respect thereto) by them or any licensor, licensee, partner or distributor to have at all times complied with their obligations to report accurate pricing information for the Company’s or its Subsidiaries’ products to a Governmental Entity and to pricing services relied upon by a Governmental Entity or other payors for such products, including their obligations to report accurate Best Prices and Average Manufacturers’ Prices under the Medicaid Rebate Statute and accurate Average Sales Prices under the Medicare Modernization Act of 2003 and their obligations to charge accurate Federal Ceiling Prices to purchasers entitled to those prices.

(f) No product or product candidate manufactured, tested, distributed, held and/or marketed by the Company or any of its Subsidiaries has been recalled, withdrawn, suspended or discontinued (whether voluntarily or otherwise) since January 1, 2005. No proceedings (whether completed or pending) seeking the recall, withdrawal, suspension or seizure of any such product or product candidate or pre-market approvals or marketing authorizations are pending, or to the Knowledge of the Company, threatened, against the Company or any of its Affiliates, nor have any such proceedings been pending at any time since January 1, 2005. The Company has, prior to the execution of this Agreement, provided or made available to Parent all current U.S. annual periodic reports and all information about adverse drug experiences, in each case since January 1, 2005 obtained or otherwise received by the Company from any source, in the United States or outside the United States, including information derived from clinical investigations prior to any market authorization approvals, commercial marketing experience, postmarketing clinical investigations, postmarketing epidemiological/surveillance studies, reports in the scientific literature, and unpublished scientific papers relating to any product or product candidate manufactured, tested, distributed, held and/or marketed by the Company, any of its Subsidiaries or any of their licensors or licensees in the possession of the Company or any of its Subsidiaries (or to which any of them has access), except for any adverse drug experiences or reports which would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect.

(g) None of the Company, any of its Subsidiaries or any officers, employees or agents of the Company or any of its Subsidiaries has with respect to any product that is manufactured, tested, distributed, held and/or marketed by the Company or any of its Subsidiaries made an untrue statement of a material fact or fraudulent statement to the FDA or other Governmental Entity, failed to disclose a material fact required to be disclosed to the FDA or any other Governmental Entity, or committed an act, made a statement, or failed to make a statement that, at the time such disclosure was made, could reasonably be expected to provide a basis for the FDA or any other Governmental Entity to invoke its policy respecting “Fraud, Untrue Statements of Material Facts, Bribery, and Illegal Gratuities” set forth in 56 Fed. Reg. 46191 (September 10, 1991) or any similar policy.

(b) The audited consolidated financial statements of the Company (including any related notes thereto) included in the Company’s Annual Report on Form 10-K/A for the fiscal year ended December 31, 2005 filed with the SEC have been prepared in accordance with GAAP in all material respects applied on a consistent basis throughout the periods involved (except as may be indicated in the notes thereto) and fairly present in all material respects the consolidated financial position of the Company and its Subsidiaries at the respective dates thereof and the consolidated statements of operations, cash flows and changes in shareholders’ equity for the periods indicated therein. The unaudited consolidated financial statements of the Company (including any related notes thereto) for all interim periods included in the Company’s quarterly reports on Form 10-Q or Form 10-Q/A filed with the SEC since January 1, 2006 have been prepared in accordance with GAAP in all material respects applied on a consistent basis throughout the periods involved (except as may be indicated in the notes thereto or may be permitted by the SEC under the Exchange Act) and fairly present in all material respects the consolidated financial position of the Company and its Subsidiaries as of the respective dates thereof and the consolidated statements of operations and cash flows for the periods indicated therein (subject to normal period-end adjustments).

(c) The Company’s disclosure controls and procedures are reasonably designed to ensure that material information relating to the Company, including its Subsidiaries, is made known to the chief executive officer and the chief financial officer of the Company by others within those entities.

(d) Since December 31, 2005, the Company has not disclosed to the Company’s independent registered accounting firm and the audit committee of the Company’s Board of Directors and to Parent (i) any significant deficiencies and material weaknesses in the design or operation of its internal control over financial reporting or (ii) any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal control over financial reporting.

(e) Since December 31, 2005, the Company has not identified any material weaknesses in the design or operation of its internal control over financial reporting. To the Knowledge of the Company, there is no reason to believe that its auditors and its chief executive officer and chief financial officer will not be able to give the certifications and attestations required pursuant to the rules and regulations adopted pursuant to Section 404 of the Sarbanes-Oxley Act of 2002 when next due. The Company maintains a system of internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations; (ii) access to assets is permitted only in accordance with management’s general or specific authorization; and (iii) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

(f) Neither the Company nor its Subsidiaries has any liabilities of any nature, except liabilities that (i) are accrued or reserved against in the most recent financial statements included in the SEC Reports filed prior to the date hereof or are reflected in the notes thereto, (ii) were incurred in the ordinary course of business since the date of such financial statements, (iii) are incurred in connection with the transactions contemplated by this Agreement, (iv) have been discharged or paid in full prior to the date of this Agreement in the ordinary course of business,

or (v) would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. Section 3.7(f) of the Company Disclosure Schedule sets forth a list of all outstanding debt for money borrowed, the applicable lender, interest rate and the applicable payment dates.

(b) With respect to each Company Plan, the Company has made available to the Parent a current, accurate and complete copy thereof (or, if a plan is not written, a written description thereof), including all amendments and, to the extent applicable, (i) any related trust agreement or similar agreement, insurance policy or other funding instrument, (ii) the most recent determination or prototype opinion letter, and any pending request for such a determination, from the Internal Revenue Service (the “IRS”) relating to a Company Plan, (iii) any summary plan description and (iv) for the most recent year that a filing has been made (A) the Form 5500 and attached schedules, (B) audited financial statements and (C) actuarial valuation reports, if any. Except as specifically provided in the foregoing documents, there are no material amendments to any Company Plans that have been adopted or approved, nor has the Company or any of its Subsidiaries undertaken to make any such amendments or to adopt or approve any new Company Plan.

(c) Each Company Plan, including any associated trust or fund, has been established and administered in accordance with its terms and in material compliance with the applicable provisions of ERISA, the Code, and all other applicable laws, rules and regulations, all required contributions and premium payments with respect thereto have been timely made, and all contributions and premium payments with respect thereto not yet due have been properly accrued in accordance with GAAP.

(d) None of the Company and its Subsidiaries nor any of their respective ERISA Affiliates has, at any time during the last six years, sponsored, contributed to or been obligated to contribute to any Title IV Plan, any Multiemployer Plan or a plan that has two or more contributing sponsors at least two of whom are not under common control (within the meaning of Section 4063 of ERISA); and none of the Company and its Subsidiaries nor any of their respective ERISA Affiliates has incurred any Withdrawal Liability that has not been satisfied in full. “Withdrawal Liability” means liability to a Multiemployer Plan as a result of a complete or partial withdrawal from such Multiemployer Plan, as those terms are defined in Part I of Subtitle E of Title IV of ERISA. There is not now, and to the Knowledge of the Company there are no existing circumstances that would reasonably be expected to give rise to, any requirement for the posting of security with respect to a Company Plan or the imposition of any pledge, lien, security interest or encumbrance on assets of the Company or any of its Subsidiaries or any of their respective ERISA Affiliates under ERISA or the Code, or similar Laws of foreign jurisdictions. The Company has not incurred any liability under Title IV of ERISA that has not been satisfied in full, and, to the Knowledge of the Company, no condition exists that presents a risk to the Company of incurring any such liability other than liability for premiums due the Pension Benefit Guaranty Corporation (the “PBGC”).

(e) No Proceedings relating to any Company Plan (other than routine claims for benefits in the ordinary course) are pending or, to the Company’s Knowledge, threatened.

(f) Each Company Plan which is intended to be qualified under Section 401(a) of the Code is so qualified and has received a favorable determination letter to that effect from the IRS and, to the Knowledge of the Company, no circumstances exist which would materially and adversely affect such qualification or exemption.

(g) The execution, delivery and performance by the Company of this Agreement and the consummation of the transactions contemplated hereby will not (either alone or upon occurrence of any additional or subsequent events) (i) constitute an event under any Company Plan or any trust or loan related to any of those plans or agreements that will or may result in any payment, acceleration, forgiveness of indebtedness, vesting, distribution, increase in benefits or obligation to fund benefits with respect to any Company Employee, or (ii) result in the triggering or imposition of any restrictions or limitations on the right of the Company or its Subsidiaries to amend or terminate any Company Plan.

(h) Except as required under Code Section 4980B and Section 601 et seq. of ERISA, or similar provisions of applicable state Law, no Company Plan that is a welfare plan within the meaning of Section 3(1) of ERISA provides benefits or coverage following retirement or other termination of employment. There has been no communication to employees of the Company or any of its Subsidiaries that promises or guarantees such employees retiree health or life insurance benefits or other retiree death benefits on a permanent or extended basis.

(i) Each Company Plan that is a nonqualified deferred compensation plan subject to Code Section 409A has been operated and administered in good faith compliance with such Section 409A from the period beginning January 1, 2005 through the date hereof.

(j) Except as would not, individually or in the aggregate, be expected to result in any material liability to the Company or any of its Subsidiaries taken as a whole, no disallowance of a deduction under Section 162(m) of the Code for employee reimbursement or compensation of any amount paid or payable by the Company or any of its Subsidiaries has occurred within the last three fiscal years of the Company.

(b) For purposes of this Agreement, “Taxes” shall mean any taxes of any kind, including those on or measured by or referred to as income, gross receipts, capital, sales, use, ad valorem, franchise, profits, license, withholding, payroll, employment, excise, severance, stamp,

occupation, premium, value added, alternative minimum, assessment, property or windfall profits taxes, customs, duties or similar fees, assessments or charges of any kind whatsoever, together with any interest and any penalties, additions to tax or additional amounts imposed by any governmental authority, domestic or foreign. For purposes of this Agreement, “Tax Return” shall mean any return, report, claim for refund, information return or statement filed or required to be filed with any governmental authority with respect to Taxes, including any schedule or attachment thereto or amendment thereof.

(b) Notwithstanding any other representations and warranties in this Agreement, the representations and warranties in this Section 3.20 are the only representations and warranties in this Agreement with respect to Environmental Laws, Materials of Environmental Concern or any other environmental matter.

(c) For purposes of this Agreement, the following terms shall have the meanings assigned below:

(b) Each of the Material Contracts is valid and binding on the Company or its Subsidiaries, as the case may be, and, to the Knowledge of the Company, each other party thereto and is in full force and effect, except for such failures to be valid and binding or to be in full force and effect as would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect. There is no default under any Material Contract by the Company or its Subsidiaries and no event has occurred that with the lapse of time or the giving of notice or both would constitute a default thereunder by the Company or its Subsidiaries, in each case except as would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect.

(b) The execution, delivery and performance of this Agreement by each of Parent and Merger Sub and the consummation of the transactions contemplated hereby by each of Parent and Merger Sub do not and will not require any notice, consent, approval, authorization or permit of, action by, filing with or notification to, any Governmental Entity, except for (i) the applicable requirements, if any, of the Securities Act and the Exchange Act and the rules and regulations promulgated thereunder, including the filing of the Offer Documents and such reports under Sections 13 and 16 of the Exchange Act as may be required in connection with the transactions contemplated hereby, (ii) the applicable requirements, if any, under state securities, takeover and “blue sky” laws, (iii) the applicable requirements of the HSR Act, (iv) the applicable requirements of Foreign Antitrust and Investment Laws, (v) the applicable requirements of Nasdaq and the NYSE, (vi) the filing with the Florida Department of State, Division of Corporations of the Articles of Merger as required by the FBCA, (vii) any notices required under the FDA Act or similar laws of jurisdictions other than the United States, and (viii) any such consent, approval, authorization, permit, action, filing or notification the failure of which to make or obtain would not individually or in the aggregate, have or reasonably be expected to have, a Parent Material Adverse Effect.

(a) amend or otherwise change its Articles of Incorporation or Bylaws or any similar governing instruments;

(b) issue, deliver, sell, pledge, dispose of or encumber any shares of capital stock, voting securities, or other equity interests, or any options, warrants, convertible securities or other rights of any kind to acquire or receive any shares of capital stock, voting securities, or other equity interests (including stock appreciation rights, phantom stock or similar instruments), of the Company or any of its Subsidiaries (except for the issuance of Shares upon the exercise of Options, in connection with other stock-based awards outstanding as of the date hereof or pursuant to the ESPP or the Company’s 401(k) Plan or in connection with the exercise of warrants granted under the Revolving Credit and Loan Agreement or the PharmaBio Warrant and except for the grant of Options and Restricted Company Common Stock as permitted pursuant to Section 5.1(j);

(c) declare, set aside, make or pay any dividend or other distribution, payable in cash, stock, property or otherwise, with respect to any of its capital stock other than dividends or distributions by a direct or indirect wholly-owned Subsidiary to its parent;

(d) adjust, recapitalize, reclassify, combine, split, subdivide, redeem, purchase or otherwise acquire any shares of capital stock of the Company or any Subsidiary that is not wholly-owned (other than in connection with the forfeiture or exercise of equity-based awards, Options or Restricted Company Common Stock in accordance with existing agreements or terms (or awards, Options or Restricted Company Common Stock that is granted after the date hereof in compliance with Sections 5.1(b) and 5.1(j), or adjust, recapitalize, reclassify, combine, split or subdivide any capital stock or other ownership interests of the Company or any of its Subsidiaries;

(e) (i) acquire (whether by merger, consolidation or acquisition of stock or assets or otherwise) any corporation, partnership or other business organization or division (whether by acquisition of assets or otherwise), in each case, with a value in excess of $1,000,000 individually or $5,000,000 in the aggregate, (ii) enter into any new line of business, (iii) make any capital contribution or investment in any Company Joint Venture except as required pursuant to terms in effect as of the date of this Agreement or (iii) create any Subsidiaries;

(f) directly or indirectly sell or otherwise dispose of (whether by merger, consolidation or acquisition of stock or assets or otherwise) any of its assets or properties (including any corporation, partnership or other business organization or division thereof or any assets thereof), with a value in excess of $1,000,000 other than sales or dispositions of inventory in the ordinary course of business consistent with past practice;

(g) (A) enter into or renew or amend (i) any contract or arrangement with revenues or payments in excess of $1,000,000 other than in the ordinary course of business consistent with past practice, unless such contract or arrangement is terminable without penalty upon the Company or its Subsidiaries giving no more than 90 days’ notice or (ii) any joint venture, partnership or other similar arrangement or (B) engage in any transaction or series of transactions with any Affiliate;

(h) authorize any new capital expenditures, other than expenditures in amounts not more than $7,500,000 in the aggregate;

(i) incur or modify in any material respect the terms of any indebtedness for borrowed money, or assume, guarantee or endorse, or otherwise as an accommodation become responsible for, the obligations of any Person, or make any loans or advances to any other Person (other than a Subsidiary of the Company) in an amount exceeding $2,000,000 in the aggregate;

(j) except to the extent required under any Company Plan that is in effect as of the date hereof or as required by applicable Law, (i) increase the compensation or benefits of any of its directors or officers (including the payment of bonuses (other than the payment of bonuses and commissions for 2006 prior to the consummation of the Offer, whether in Options or Restricted Company Common Stock granted under a Company Plan in effect on the date hereof or in cash, which bonuses and commissions shall be consistent with past practice in terms of amounts and, in no event, with an aggregate cash value in excess of the amount set forth on Schedule 5.1(j) of the Company Disclosure Schedule) and the granting of stock options, stock appreciation rights, restricted shares, restricted share units or performance units or shares), other than annual adjustments in 2007 to compensation and benefits in the ordinary course of business consistent with past practice; (ii) grant or pay any severance or termination pay not provided for under any plan, policy, guideline or agreement in effect on or prior to the date hereof; (iii) enter into, amend or modify the terms of any employment, consulting, change of control, indemnification, termination or severance agreement or arrangement with any of its present or former directors or officers, or establish, adopt, enter into or materially amend or terminate any Company Plan or collective bargaining agreement; or (iv) accelerate the vesting or time of payment of any compensation or benefits of any director, officer, employee or consultant or fund or make any contribution to any Company Plan or trust not required to be funded;

(k) make any material change in any financial or regulatory accounting principles, except as may be appropriate to conform to changes in statutory or regulatory accounting rules or GAAP or regulatory requirements with respect thereto;

(l) (i) make, change or revoke any material Tax election or, except as required by applicable Law, change any method of Tax accounting, (ii) enter into any settlement or compromise of any material Tax liability, (iii) file any amended Tax Return with respect to any material Tax, (iv) change any annual Tax accounting period, (v) enter into any closing agreement relating to any material Tax, (vi) claim or surrender any right to claim a material Tax refund or (vii) become a party to a transaction that constitutes a “reportable transaction” for purposes of Section 6011 of the Code and applicable Treasury regulations thereunder (or a similar provision of state Law);

(m) agree to or otherwise settle, compromise or otherwise resolve in whole or in part any litigation, actions, suits, actual, potential or threatened claims, investigations or proceedings, whether pending on the date hereof or hereafter made or brought, which settlement or compromise would, in any single case, result in (i) damages, fines or other penalties payable to or by the Company or its Subsidiaries in excess of $1,000,000 or (ii) non-monetary relief, including debarment, corporate integrity agreements, any other undertaking of any kind, deferred prosecution agreements, consent decrees, plea agreements or mandatory or permissive exclusion;

(n) abandon, sell, license (except in the ordinary course of business consistent with past practice), assign or grant any Lien in or to any material item of Company Intellectual Property Rights or any other material assets;

(o) enter into, modify, amend, extend or terminate, or waive, release or assign any material rights or claims with respect to any Material Contract or any Contract that would have been deemed to be a Material Contract if entered into prior to the date hereof;

(p) enter into or amend any confidentiality agreements or arrangements, other than in the ordinary course of business consistent with past practice (other than as permitted by Section 6.4(a));

(q) waive or fail to enforce any provisions under any confidentiality agreement, standstill agreement or similar arrangements, other than (x) in the ordinary course of business consistent with past practice, and (y) in accordance with a good faith determination of the Board of Directors of the Company, after consultation with its outside counsel, that the failure to take such action would be reasonably likely to result in a breach of its fiduciary duties to the Company’s shareholders, provided, in the case of this clause (y), that prior to waiving or failing to enforce any such provision, the Company shall provide Parent with no less than two Business Days (or, if shorter, such number of Business Days remaining prior to the Expiration Date) notice of such action, which notice shall include the identity of the Person requesting such waiver and any material terms of such request;

(r) take any action that would make the timely satisfaction of condition (c) set forth in Exhibit A impossible or unlikely; and

(s) resolve or agree to take any of the actions described in Sections 5.1(a) through 5.1(r).

(b) Parent shall cause all Shares purchased pursuant to the Offer and all other Shares owned by Parent, Merger Sub or any other subsidiary of Parent to be voted in favor of the approval of this Agreement.

(b) Each of Parent and Merger Sub will hold and treat and will cause its officers, employees, auditors and other authorized representatives to hold and treat in confidence all documents and information concerning the Company and its Subsidiaries furnished to Parent or Merger Sub in connection with the transactions contemplated by this Agreement in accordance with the Confidentiality Agreement, dated September 26, 2006, between the Company and Parent (the “Confidentiality Agreement”), which Confidentiality Agreement shall remain in full force and effect in accordance with its terms.

(b) The Board of Directors of the Company shall not (i) withdraw or modify in a manner adverse to Parent or Merger Sub, or propose publicly to withdraw or modify in a manner adverse to Parent or Merger Sub, the Offer Recommendation or the Merger Recommendation or resolve, agree or propose publicly to take any such action (any such action or any such resolution or agreement to take such action being referred to herein as an “Adverse Recommendation Change”), unless at any time prior to the acceptance for payment of Shares pursuant to the Offer, the Board of Directors of the Company determines in good faith and after consultation with its outside counsel, that the failure to take such action would be reasonably likely to result in a breach of its fiduciary duties to the Company’s shareholders; provided that the Company shall provide Parent with no less than two Business Days (or, if shorter, such number of Business Days remaining prior to the Expiration Date) notice of any expected Adverse Recommendation Change prior to any such change, (ii) recommend, adopt, or approve any Acquisition Proposal or propose publicly to recommend, adopt or approve any Acquisition Proposal or resolve or agree to take any such action or (iii) cause or permit the Company to enter into any letter of intent, memorandum of understanding, agreement in principle, acquisition agreement, merger agreement, option agreement, joint venture agreement, partnership agreement

or other agreement (each, an “Acquisition Agreement”) constituting or related to, or which is intended to or is reasonably likely to lead to, any Acquisition Proposal (other than a confidentiality agreement entered into in accordance with Section 6.4(a)) or resolve, agree or publicly propose to take any such action.

(c) Nothing contained in this Section 6.4 or elsewhere in this Agreement shall prohibit the Company from (i) taking and disclosing to its shareholders a position contemplated by Rule 14d-9 and 14e-2(a) promulgated under the Exchange Act or (ii) making any disclosure to the Company’s shareholders if, in the good faith judgment of the Board of Directors of the Company, after receipt of advice from its outside counsel, failure so to disclose would be inconsistent with its fiduciary duties or applicable Law, provided that this Section 6.4(c) will not affect the obligations of the Company and its Board of Directors under Sections 6.4(a) and 6.4(b); provided, further, that (x) any such disclosure made pursuant to this Section 6.4(c) (other than a “stop, look and listen” letter or similar communication of the type contemplated by Rule 14d-9(f) under the Exchange Act) shall not be deemed to be an Adverse Recommendation Change so long as the Board of Directors of the Company expressly reaffirms in such disclosure its Offer Recommendation and its Merger Recommendation and (y) the Company shall provide Parent with no less than one Business Day (or, if shorter, such number of hours remaining prior to the Expiration Date) notice of such disclosure prior to any such disclosure.

(b) As of and after the Effective Time, Parent will, or will cause the Surviving Corporation to, give Company Employees who are employed by Parent or its Subsidiaries immediately following the Effective Time full credit for purposes of eligibility and vesting and benefit accruals (but not for purposes of benefit accruals under any defined benefit pension plans or to the extent this credit would result in a duplication of benefits for the same period of service and not where past service credit was not provided for other new participants in such Parent Plans), under any employee benefit (including vacation) plans, programs, policies and arrangements maintained for the benefit of Company Employees as of and after the Effective Time by Parent, its Subsidiaries or the Surviving Corporation for the Company Employees’ pre-Effective Time service with the Company, its Subsidiaries and their predecessor entities (each, a “Parent Plan”) to the same extent recognized by the Company immediately prior to the Effective Time. With respect to each Parent Plan that is a “welfare benefit plan” (as defined in Section 3(1) of ERISA), Parent or its Subsidiaries shall (i) cause there to be waived any pre-existing condition or eligibility limitations to the same extent waived by the Company and its Subsidiaries under the comparable Company Plans and (ii) give effect, in determining any deductible and maximum out-of-pocket limitations with respect to the plan year in which the Effective Time occurs, to claims incurred and amounts paid by, and amounts reimbursed to,

Company Employees, in each case under similar plans maintained by the Company and its Subsidiaries immediately prior to the Effective Time.

(c) Parent acknowledges and agrees that the consummation of the Merger shall constitute a “Change in Control” for purposes of each Company Plan listed in Section 6.5(c) of the Company Disclosure Schedule. From and after the Effective Time, Parent will honor, and will cause its Subsidiaries to honor, in accordance with its terms, each Company Plan listed in Section 3.10(a) of the Company Disclosure Schedule; provided, however, that nothing herein shall prevent the amendment, suspension or termination of any Company Plan pursuant to its terms or interfere with the Parent’s or Surviving Corporation’s right or obligation to make such changes as are necessary to conform with applicable Law.

(d) Parent shall provide to Company Employees the severance benefits set forth in Section 6.5(d) of the Company Disclosure Schedule on the terms and conditions set forth therein, except with respect to any Person that is a party to a Change in Control Severance Agreement. Nothing contained herein shall prevent Parent from terminating the employment of any Company Employee.

(b) Except as may be required by applicable Law, Parent and the Company agree that all rights to indemnification and exculpation from liabilities for acts or omissions occurring at or prior to the Effective Time (and rights for advancement of expenses) now existing in favor of the current or former directors or officers of the Company and its Subsidiaries as provided in their respective articles of incorporation or bylaws (or comparable

organizational documents) shall be assumed by the Surviving Corporation in the Merger, without further action, at the Effective Time and shall survive the Merger and shall continue in full force and effect in accordance with their terms.

(c) Parent shall, or shall cause the Surviving Corporation to, obtain a six year “tail” insurance policy that provides coverage on terms no less favorable than the coverage provided under the Company’s directors and officers insurance policy in effect on the date of this Agreement for the Persons who are covered by such policy on the date of this Agreement for events occurring prior to the Effective Time; provided, however, neither Parent nor the Surviving Corporation shall be required to pay more than $5,000,000 to purchase such policy; and provided further, however, as an alternative, Parent and/or the Surviving Corporation shall have opportunity to purchase a substitute policy which (i) has an effective term of six years from the Effective Time, (ii) covers those persons who are currently covered by the Company’s directors’ and officers’ insurance policy in effect as of the date hereof for actions and omissions occurring on or prior to the Effective Time, and (iii) contains terms and conditions that are no less favorable to the insured than those of the Company’s directors’ and officers’ insurance policy in effect as of the date hereof.

(d) This covenant is intended to be for the benefit of, and shall be enforceable by, each of the Indemnified Parties and their respective heirs and legal representatives. The indemnification provided for herein shall not be deemed exclusive of any other rights to which an Indemnified Party is entitled, whether pursuant to Law, contract or otherwise.

(e) In the event that the Surviving Corporation or its successors or assigns (i) consolidates with or merges into any other Person and shall not be the continuing or surviving corporation or entity of such consolidation or merger or (ii) transfers or conveys all or a majority of its properties and assets to any Person, then, and in each such case, proper provision shall be made so that the successors and assigns of the Surviving Corporation shall succeed to the obligations set forth in this Section 6.6.

(f) Parent shall pay all reasonable expenses, including reasonable attorneys’ fees, that may be incurred by any Indemnified Party in successfully enforcing the indemnity and other obligations provided in this Section 6.6.

(b) Each of Parent and Merger Sub, on the one hand, and the Company, on the other hand, shall, in connection with the efforts referenced in Section 6.7(a) to obtain all requisite approvals and authorizations for the transactions contemplated by this Agreement under the HSR Act or any other Antitrust Law, use reasonable best efforts to (i) cooperate in all respects with each other in connection with any filing or submission and in connection with any investigation or other inquiry, including any proceeding initiated by a private party; (ii) keep the other party reasonably informed, including by providing the other party with a copy, of any communication received by such party from, or given by such party to, the Federal Trade Commission (the “FTC”), the Antitrust Division of the Department of Justice (the “DOJ”) or any other U.S. or foreign Governmental Entity and of any communication received or given in connection with any proceeding by a private party, in each case regarding any of the transactions contemplated hereby; and (iii) permit the other party to review in advance any communication planned to be given by it to, and consult with each other in advance of any meeting or conference with, the FTC, the DOJ or any other U.S. or foreign Governmental Entity or, in connection with any proceeding by a private party, with any other Person, and to the extent permitted by the FTC, the DOJ or such other applicable Governmental Entity or other Person, give the other party or its representatives the opportunity to attend and participate in such meetings and conferences. Notwithstanding the foregoing, the Company and Parent may, as each deems advisable and necessary, reasonably designate any competitively sensitive material provided to the other under this Section 6.7(b) as “Antitrust Counsel Only Material.” Such materials and the information contained therein shall be given only to the outside counsel regarding Antitrust Law of the recipient and will not be disclosed by outside counsel to employees, officers, directors or consultants of the recipient or any of its affiliates unless express permission is obtained in advance from the source of the materials (the Company or Parent as the case may be) or its legal counsel. Each of the Company and Parent shall cause their respective outside counsel regarding Antitrust Law to comply with this Section 6.7(b). Notwithstanding anything to the contrary in this Section 6.7(b), materials provided to the other party or its counsel may be redacted to remove references concerning the valuation of the Company and privileged communications. For purposes of this Agreement, “Antitrust Law” means the Sherman Antitrust Act of 1890, as amended, the Clayton Act of 1914, as amended, the HSR Act, the Federal Trade Commission Act, as amended, Foreign Antitrust and Investment Laws, and all other Laws that are designed or intended to prohibit, restrict or regulate actions having the purpose or effect of monopolization or restraint of trade or lessening of competition through merger or acquisition.

(c) In furtherance and not in limitation of the covenants of the parties contained in Sections 6.7(a) and (b), if any objections are asserted with respect to the transactions contemplated hereby under any Antitrust Law or if any suit is instituted (or threatened to be instituted) by the FTC, the DOJ or any other U.S. or foreign Governmental Entity or any private party challenging any of the transactions contemplated hereby as violative of any Antitrust Law or which would otherwise prevent, materially impede or materially delay the consummation of the transactions contemplated hereby, each of Parent, Merger Sub and the Company shall use reasonable best efforts to resolve any such objections or suits so as to permit consummation of the transactions contemplated by this Agreement.

(d) Subject to the limitations set forth in Section 6.7(c), in the event that any administrative or judicial investigation, suit, action or other proceeding is instituted (or threatened to be instituted) by a Governmental Entity or private party challenging the Offer, the Merger, the Investments Stock Purchase or any other transaction contemplated by this Agreement, or any other agreement contemplated hereby, or that otherwise would reasonably be expected to prevent, impede or delay the Offer, the Merger, the Investments Stock Purchase or any such transaction or the satisfaction of any condition set forth in Exhibit A or Article VII, each of Parent, Merger Sub and the Company shall cooperate in good faith with each other and use its respective reasonable best efforts to contest and resist any such action or proceeding and to have vacated, lifted, reversed or overturned any decree, judgment, injunction or other order, whether temporary, preliminary or permanent, that is in effect and that prohibits, prevents or restricts consummation of the transactions contemplated by this Agreement.

(b) Following the election or appointment of Parent’s or Merger Sub’s designees pursuant to Section 6.10(a) and prior to the Effective Time, any amendment or termination of this Agreement approved by the Company, extension for the performance or waiver of the obligations of Parent or Merger Sub or waiver of the Company’s rights hereunder shall require the concurrence of a majority of the Independent Directors.

(a) if required by Law, this Agreement shall have been approved by the shareholders of the Company by the Company Requisite Vote;

(b) no Law (whether temporary, preliminary or permanent) shall have been enacted, entered, promulgated or enforced, nor any injunction shall have been issued and be in effect, by any United States or state court or United States Governmental Entity which prohibits, restrains or enjoins the consummation of the Merger; provided, however, that prior to invoking this condition each party agrees to comply with Section 6.7; and

(c) all statutory waiting periods (and any extension thereof) applicable to the Merger under the HSR Act shall have been terminated or shall have expired.

(a) by mutual written consent of Parent, Merger Sub and the Company;

(b) by Parent or the Company if any court of competent jurisdiction or other Governmental Entity located or having jurisdiction within the United States shall have issued a final order, decree or ruling or taken any other final action restraining, enjoining or otherwise

prohibiting the Merger and such order, decree, ruling or other action is or shall have become final and nonappealable;

(c) by either Parent or the Company if the Effective Time shall not have occurred on or before the date which is nine months from the date hereof (the “Termination Date”); provided that the right to terminate this Agreement pursuant to this Section 8.1(c) shall not be available to the party seeking to terminate if any action of such party (or, in the case of Parent, Merger Sub) or the failure of such party (or, in the case of Parent, Merger Sub) to perform any of its obligations under this Agreement required to be performed at or prior to the Effective Time has been the cause of, or resulted in, the failure of the Effective Time to occur on or before the Termination Date and such action or failure to perform constitutes a breach of this Agreement; and provided further that this Agreement may not be terminated pursuant to this clause (c) after Parent or Merger Sub accepts Shares for payment pursuant to the Offer;

(d) by the Company if Parent or Merger Sub shall have breached or failed to perform any representation, warranty, covenant or agreement contained in this Agreement (without giving effect to any limitation on any representation or warranty indicated by the words “Parent Material Adverse Effect”, “in all material respects”, “in any material respect”, “material” or “materially”), and (i) such breach has not been cured prior to the earlier of (A) 30 days following notice of such breach to Parent and (B) the Termination Date and (ii) such breach has had, or would reasonably be expected to have, individually or in the aggregate, a Parent Material Adverse Effect; provided that the Company shall not have the right to terminate this Agreement pursuant to this Section 8.1(d) if the Company is then in material breach of any of its representations, warranties, covenants or agreements contained in this Agreement; provided further that this Agreement may not be terminated pursuant to this Section 8.1(d) after Parent or Merger Sub accepts Shares for payment pursuant to the Offer;

(e) by Parent if there shall have been a breach of any representation, warranty, covenant or agreement on the part of the Company contained in this Agreement such that the conditions set forth in clause (c) or (d) of Exhibit A would not be satisfied and, in either such case, such breach shall not have been cured prior to the earlier of (A) 30 days following notice of such breach to the Company and (B) the Termination Date; provided that Parent shall not have the right to terminate this Agreement pursuant to this Section 8.1(e) if Parent or Merger Sub is then in material breach of any of its representations, warranties, covenants or agreements contained in this Agreement; provided that this Agreement may not be terminated pursuant to this Section 8.1(e) after Parent or Merger Sub accepts Shares for payment pursuant to the Offer;

(f) by Parent in the event that an Adverse Recommendation Change has occurred;

(g) by Parent in the event that a willful and material breach of Section 6.4 has occurred; or

(h) by Parent or the Company after the twentieth Business Day following an Adverse Recommendation Change if (x) the Majority Tender Condition has not then been satisfied and (y) Parent has not increased the Offer Price in an amount sufficient to permit the

Board of Directors of the Company to reinstate the Offer Recommendation and the Merger Recommendation in accordance with its fiduciary duties.

(b) In the event that this Agreement is terminated by Parent pursuant to 8.1(f) then the Company shall pay Parent a fee equal to the Termination Expenses plus the Termination Fee, by wire transfer of same day funds to an account designated by Parent.

(c) If the Board of Directors of the Company effects an Adverse Recommendation Change and this Agreement is subsequently terminated pursuant to Section 8.1(h), then the Company will pay Parent the Termination Expenses plus $126,000,000 (the “Termination Fee”), in each case by wire transfer of same day funds to an account designated by Parent.

(d) If this Agreement is terminated pursuant to Section 8.1(e) as a result of a breach following an Adverse Recommendation Change or receipt or public disclosure of a bona fide Acquisition Proposal after the date hereof, then the Company will pay Parent an amount equal to the Termination Expenses, and, further, if within twelve months after the termination date, the Company or any of its Affiliates enters into a definitive agreement for or consummates an Acquisition Proposal or Superior Proposal, then the Company will also pay Parent the Termination Fee, in each case by wire transfer of same day funds to an account designated by Parent; provided that the Company shall not be required to pay the Termination Fee to the Parent in the event that the consideration payable per share of Company Common Stock pursuant to such Acquisition Proposal or Superior Proposal is less than the Offer Price.

(e) If this Agreement is terminated pursuant to Section 8.1(g) then the Company will pay Parent an amount equal to the Termination Expenses, and, further, if within twelve months after the termination date, the Company or any of its Affiliates enters into a definitive agreement for or consummates an Acquisition Proposal or Superior Proposal, then the Company will also pay Parent the Termination Fee, in each case by wire transfer of same day funds to an account designated by Parent.

(f) The Termination Expenses and Termination Fee will be paid to Parent by the Company within two Business Days after the date of the event giving rise to the obligation to make such payment. The Company acknowledges that the agreement contained in this Section 8.3 is an integral part of the transactions contemplated by this Agreement, and that, without this

agreement, Parent would not enter into this Agreement. The Company shall pay all reasonable expenses, including reasonable attorneys’ fees, that may be incurred by Parent in successfully enforcing the Company’s obligations under this Section 8.3. For purposes of this Agreement, “Termination Expenses” means an amount, not to exceed $10,000,000, equal to the reasonable out-of-pocket costs and expenses of Parent and Merger Sub and their respective Affiliates incurred in connection with this Agreement and the transactions contemplated hereby (including the fees and expenses of the financial advisor, counsel and accountants incurred in connection with this Agreement and the transactions contemplated hereby).

(g) Solely for purposes of this Section 8.3 references to 15% in the definition of Acquisition Proposal shall be deemed replaced by references to 50%.

(h) For the purposes of the proviso set forth in Section 8.3(d): (i) the consideration payable per share of Company Common Stock shall include (x) any non-cash consideration (including any residual interest in the Company retained by shareholders immediately following such transaction whether represented by such Share or other securities of the Company to the extent that the Company has engaged in a spin-off, recapitalization or similar transaction) which shall be valued at its fair market value as of the date of consummation, (y) all deferred payments or consideration which shall be discounted at a market rate to reflect the net present value and (z) all contingent payments which will be assumed to have been paid, in each case, as of the date of consummation; (ii) the fair market value of any non-cash consideration consisting of (A) securities listed on a national securities exchange or traded on the Nasdaq shall be equal to the average of the closing prices per share of such security as reported on such exchange or Nasdaq for each of the five trading days prior to the date of determination; and (B) property other than cash or securities of the type described in subclause (A) shall be the amount that a reasonable, willing buyer would pay to a reasonable, willing seller, taking into account the nature and terms of such property (in the event of a dispute as to the fair market value of such property, such disputed amounts shall be determined by a nationally recognized independent investment banking firm mutually agreed upon by Parent and the Company within five Business Days of the event requiring such selection; the determination made by such investment banking firm shall be final and binding on the parties and Parent and the Company shall each pay one-half of the expenses in connection with such determination); and (iii) in the event that the Company shall declare and pay a stock or extraordinary dividend or other distribution, or effect a stock split, reverse stock split, reclassification, reorganization, recapitalization, combination or other like change with respect to shares of Company Common Stock, the calculation of the consideration shall be adjusted to reflect fully such dividend, distribution, stock split, reverse stock split, reclassification, reorganization, recapitalization, combination or other like change and the value of any such dividend, distribution, stock split, reclassification, reorganization, recapitalization, combination (including any residual interest in the Company whether represented by Company Common Stock or other securities of the Company to the extent that the Company has engaged in a spin-off, recapitalization or similar transaction).

(a) if to Parent or Merger Sub:

(b) if to the Company:

(a) “Affiliate” means any executive officer or director of any Person or any Person owning 5% or more of any class of voting securities of any other Person or any other

“affiliate” as defined in Rule 12b-2 under the Exchange Act or any immediate family member of any of the foregoing. For purposes of this Agreement, Arisaph Pharmaceuticals, Inc. shall not be deemed an Affiliate of the Company.

(b) “beneficial owner” with respect to any Shares has the meaning ascribed to such term under Rule 13d-3 under the Exchange Act and includes any Person who shall be deemed to be the beneficial owner of such Shares (i) which such Person or any of its Affiliates or associates (as such term is defined in Rule 12b-2 under the Exchange Act) beneficially owns, directly or indirectly, (ii) which such Person or any of its Affiliates or associates (as such term is defined in Rule 12b-2 of the Exchange Act) has, directly or indirectly, (A) the right to acquire (whether such right is exercisable immediately or subject only to the passage of time), pursuant to any agreement, arrangement or understanding or upon the exercise of consideration rights, exchange rights, warrants, options or otherwise, or (B) the right to vote pursuant to any agreement, arrangement or understanding, or (iii) which are beneficially owned, directly or indirectly, by any other Persons with whom such Person or any of its Affiliates or associates has any agreement, arrangement or understanding for the purpose of acquiring, holding, voting or disposing of any Shares (and the term “beneficially owned” or “owns beneficially” shall have a corresponding meaning).

(c) “Business Day” means any day on which the principal offices of the SEC in Washington, D.C. are open to accept filings or, in the case of determining a date when any payment is due, any day on which banks are not required or authorized by law to close in New York, New York.

(d) “control” (including the terms “controlled”, “controlled by” and “under common control with”) means the possession, directly or indirectly or as trustee or executor, of the power to direct or cause the direction of the management policies of a Person, whether through the ownership of stock, as trustee or executor, by contract or credit arrangement or otherwise.

(e) “Controlled Group Liability” means any and all liabilities (i) under Title IV of ERISA, (ii) under Section 302 of ERISA, (iii) under Sections 412 and 4971 of the Code, (iv) as a result of a failure to comply with the continuation coverage requirements of Section 601 et seq. of ERISA and Section 4980B of the Code, and (v) under corresponding or similar provisions of foreign laws or regulations.

(f) “ERISA Affiliate” means, with respect to any entity, trade or business, any other entity, trade or business that is, or was at the relevant time, a member of a group described in Section 414(b), (c), (m) or (o) of the Code or Section 4001(b)(1) of ERISA that includes or included the first entity, trade or business, or that is, or was at the relevant time, a member of the same “controlled group” as the first entity, trade or business pursuant to Section 4001(a)(14) of ERISA.

(g) “GAAP” means the generally accepted accounting principles in the United States, set forth in the Financial Accounting Standards Board (FASB) Statements of Financial Accounting Standards and Interpretations, FASB Emerging Issues Task Force consensuses, Accounting Principles Board (APB) Opinions, and rules and interpretative releases of the SEC,

including SEC Staff Accounting Bulletins and other such statements by such other entity as may be approved by a significant segment of the accounting profession in the United States, in each case, as applicable as of the time for the relevant financial statements referred to herein.

(h) “Knowledge” means, (i) with respect to the Company, the actual knowledge of the officers listed in Section 9.3(h) of the Company Disclosure Schedule, and (ii) with respect to Parent, the actual knowledge of the officers listed in Section 9.3(h) of the Parent Disclosure Schedule.

(i) “Person” means an individual, corporation, partnership, limited liability company, association, trust, unincorporated organization, other entity or group (as defined in Section 13(d)(3) of the Exchange Act).

(j) “Subsidiary” of the Company, the Surviving Corporation, Parent or any other Person means any corporation, partnership, joint venture or other legal entity of which the Company, the Surviving Corporation, Parent or such other person, as the case may be (either alone or through or together with any other Subsidiary), owns, directly or indirectly, 50% or more of the stock or other equity interests the holder of which is generally entitled to vote for the election of the board of directors or other governing body of such corporation or other legal entity.

(a) At or prior to noon (New York City time) on the Expiration Date, Sellers shall deliver (or caused to be delivered) (i) to Acquiror (x) each Seller’s Closing Certificate, (y) the Resignation Letters and (z) the Payoff Letters and (ii) to Acquiror and the Escrow Agent, the Closing Payment Certificate.

(b) Pursuant to the Escrow Agreement, upon receipt by the Escrow Agent of a notice that the Offer has been consummated and that payment of the Purchase Price has been received by the Sellers, the Escrow Agent shall release and deliver the Share Certificates to Acquiror.

(c) The Acquiror and the Sellers shall give effect to the arrangements negotiated between them prior to the closing for the payment to Wachovia Bank N.A. of the aggregate amount of all indebtedness of Kos Investments to Wachovia Bank N.A. (as reflected

on the Payoff Closing Certificate) and the termination and release of any pledge or other security interests in favor of Wachovia Bank N.A. (or its affiliates) encumbering shares of Company Common Stock held directly or indirectly by Kos Investments.

(a) Except as set forth in Section 2.02(a) of the Disclosure Schedule, the execution, delivery and performance of this Agreement by each Seller does not and will not (i) conflict with or violate the articles of incorporation or bylaws of Kos Investments or Kos Holdings, (ii) assuming that all applicable requirements under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”), and the Securities Exchange Act of 1934, as amended (the “Exchange Act”), have been satisfied, conflict with or violate any federal, state, local or foreign statute, law, ordinance, rule, regulation, order, judgment, decree or legal requirement (“Law”) applicable to the Sellers, Kos Investments or Kos Holdings or by which any of their respective properties are bound or (iii) (A) result in any breach or violation of or constitute a default (or an event which with notice or lapse of time or both would become a default), or (B) result in the loss of a benefit under, or give rise to any right of termination, cancellation, amendment or acceleration of, or (C) result in the creation of any Lien on any of the

Shares or any other properties or assets of any Seller, Kos Investments or Kos Holdings under, any Contract to which any Seller, Kos Investments or Kos Holdings is a party or by which and Seller, Kos Investments or Kos Holdings or any of their respective properties are bound.

(b) Except pursuant to the applicable requirements under the HSR Act and the Exchange Act, no consent, approval, authorization or permit of, action by, filing with or notification to, any federal, state, local or foreign governmental or regulatory (including stock exchange) authority, agency, court, commission, or other governmental body (a “Governmental Entity”) or any other person (including with respect to individuals, any spouse, and with respect to trusts, any co-trustee or beneficiary) is required to be obtained or made by Sellers, Kos Investments or Kos Holdings in connection with the execution, delivery and performance of this Agreement or the consummation of the transactions contemplated hereby.

(a) Kos Investments owns and has good and valid title to (i) 960,069 shares of Company Common Stock and (ii) all of the issued and outstanding capital stock of Kos Holdings, in each case, free and clear of all Liens other than as set forth in Section 2.05(a) of the Disclosure Schedule.

(b) Kos Holdings owns and has good and valid title to 7,610,000 shares of Company Common Stock, free and clear of all Liens other than as set forth in Section 2.05(b) of the Disclosure Schedule.

(c) Except for (i) 960,069 shares of Company Common Stock owned by Kos Investments, (ii) the shares of Kos Holdings owned by Kos Investments and (iii) 7,610,000

shares of Company Common Stock owned by Kos Holdings (collectively, the “Assets”), neither Kos Investments nor Kos Holdings (A) owns, directly or indirectly, any capital stock, partnership interest, limited liability company interest, joint venture interest or any other equity in any person or any other asset or (B) has since January 1, 1999, directly or indirectly owned any other asset, in each case except as set forth in Section 2.05(c) of the Disclosure Schedule. Other than the Merger Agreement, the Shareholders Agreement and the other agreement set forth in Section 2.05(c) of the Disclosure Schedule, the Assets are not subject to any voting trust agreement or other Contract, including any Contract restricting or otherwise relating to the voting, dividend rights or disposition of the Assets, and no proxies have been granted in respect of the Assets.

(a) The authorized capital stock of Kos Investments consists of 50,000 shares of common stock, par value $0.01 per share, of which only 27,200 shares, constituting the Shares, are issued and outstanding. All of the Shares were validly issued, fully paid and nonassessable and were issued free of preemptive rights and in accordance with all applicable Laws.

(b) Except as set forth in clause (a) of this Section 2.06 or as set forth in Section 2.06(b) of the Disclosure Schedules, (i) there are not outstanding or authorized any (A) shares of capital stock or other voting securities of Kos Investments, (B) securities of Kos Investments convertible into or exchangeable for shares of capital stock or voting securities of Kos Investments or (C) options or other rights to acquire from Kos Investments, or any obligation of Kos Investments to issue, any capital stock, voting securities or securities convertible into or exchangeable for capital stock or voting securities of Kos Investments; and (ii) there are no other options, calls, warrants or other rights, agreements, arrangements or commitments of any character relating to the issued or unissued capital stock or other voting securities of Kos Investments to which Kos Investments or any Seller is a party.

(c) The authorized capital stock of Kos Holdings consists of 50,000 shares of common stock, par value $0.01 per share, of which only 10,000 shares are issued and outstanding. All of the shares of Kos Holdings were validly issued, fully paid and nonassessable, were issued free of preemptive rights and are owned beneficially and of record by Kos Investments.

(d) Except as set forth in clause (c) of this Section 2.06, (i) there are not outstanding or authorized any (A) shares of capital stock or other voting securities of Kos Holdings, (B) securities of Kos Holdings convertible into or exchangeable for shares of capital stock or voting securities of Kos Holdings or (C) options or other rights to acquire from Kos Holdings, or any obligation of Kos Holdings to issue, any capital stock, voting securities or securities convertible into or exchangeable for capital stock or voting securities of Kos Holdings; and (ii) there are no other options, calls, warrants or other rights, agreements, arrangements or commitments of any character relating to the issued or unissued capital stock or other voting securities of Kos Holdings to which Kos Holdings, Kos Investments or any Seller is a party.

(a) The execution, delivery and performance of this Agreement by Acquiror does not and will not (i) conflict with or violate the articles of incorporation or bylaws of Acquiror, (ii) assuming that all applicable requirements under the HSR Act and the Exchange Act have been satisfied, conflict with or violate any Law applicable to Acquiror or by which any of its properties are bound or (iii) (A) result in any breach or violation of or constitute a default (or an event which with notice or lapse of time or both would become a default), or (B) result in the loss of a benefit under, or give rise to any right of termination, cancellation, amendment or acceleration of, or (C) result in the creation of any Lien on any of the properties or assets of Acquiror under, any Contract to which Acquiror or its subsidiaries is a party or by which Acquiror or its subsidiaries or any of their respective properties are bound.

(b) Except pursuant to applicable requirements under the HSR Act and the Exchange Act, no consent, approval, authorization or permit of, action by, filing with or notification to, any Governmental Entity is required to be obtained or made by Acquiror in connection with the execution, delivery and performance of this Agreement or the consummation of the transactions contemplated hereby.

(a) amend or otherwise change the articles of incorporation or bylaws or any similar governing instruments of Kos Investments or Kos Holdings;

(b) issue, deliver, sell, pledge, dispose of or encumber (whether by merger or otherwise by operation of law) any shares of capital stock, voting securities, or other equity interests, or any options, warrants, convertible securities or other rights of any kind to acquire or receive any shares of capital stock, voting securities, or other equity interests, of Kos Investments or Kos Holdings;

(c) adjust, recapitalize, reclassify, combine, split, subdivide, redeem, purchase or otherwise acquire any shares of capital stock of Kos Investments or Kos Holdings;

(d) in the case of Kos Investments and Kos Holdings only (i) enter into any business or (ii) make any capital contribution or investment in any other person;

(e) (i) grant any proxies or enter into a voting trust or other agreement or arrangement with respect to the voting of any of the Assets or (ii) Transfer, grant a Lien on, or enter into any Contract, option or other arrangement or understanding with respect to any Transfer (whether by actual disposition or effective economic disposition) of any of the Assets or any rights thereto or therein;

(f) in the case of Kos Investments or Kos Holdings only, acquire any asset, or enter into, modify or amend any Contract (other than in accordance with Section 4.02);

(g) in the case of Kos Investments or Kos Holdings only, incur any indebtedness or other liability that will not be discharged at Closing;

(h) in the case of or with respect to Kos Investments or Kos Holdings only, (i) make, change or revoke any material Tax election or, except as required by applicable Law, change any method of Tax accounting, (ii) enter into any settlement or compromise of any material Tax liability, (iii) file any amended Tax Return with respect to any material Tax, (iv) change any annual Tax accounting period, (v) enter into any closing agreement relating to any material Tax, (vi) claim or surrender any right to claim a material Tax refund or (vii) become a party to a transaction that constitutes a “reportable transaction” for purposes of Section 6011 of the Code and applicable Treasury regulations thereunder (or a similar provision of state Law); or

(i) commit or agree to take any of the actions described in Sections 4.01(a) through 4.01(g).

(b) Acquiror will hold and treat and will cause its officers, employees, auditors and other authorized representatives to hold and treat in confidence all documents and information concerning Kos Investments or Kos Holdings or its shareholders furnished to

Acquiror in connection with the transactions contemplated by this Agreement in accordance with the Confidentiality Agreement, dated September 26, 2006, between the Kos Investments, Kos Holdings, Oikos Ventures LLC and Acquiror (the “Confidentiality Agreement”).

(a) Sellers shall prepare and timely file or shall cause to be prepared and timely filed all Federal, state, local and foreign Tax Returns in respect of Kos Investments and Kos Holdings, their assets or activities that are required to be filed taking into account any applicable extensions on or before the Closing Date. Sellers shall prepare or cause to be prepared and Acquiror shall file or cause to be filed all federal, state, local and foreign Tax Returns in respect of Kos Investments and Kos Holdings, their assets or activities that are required to be filed after the Closing Date and are with respect to any Tax period ending on or before the Closing Date. Sellers shall permit Acquiror to review and comment on all such Tax Returns prepared by Sellers. Acquiror shall prepare or cause to be prepared and shall file or

cause to be filed all other Tax Returns required of Kos Investments and Kos Holdings for any Tax period that includes and ends after the Closing Date.

(b) To the extent permitted by applicable Law, all federal, state and local income Tax Returns of Kos Investments and Kos Holdings shall be filed on the basis that (i) their taxable year ends at the end of the day before the Closing Date and (ii) there was a closing of books at such time under Section 1362(e)(3) of the Code.

(c) No election under Section 338(h)(10) of the Code shall be made with respect to the stock of Kos Investments.

(a) If the Board of Directors of the Company has effected an Adverse Recommendation Change and the Merger Agreement is subsequently terminated pursuant to Section 8.1(h) thereof and, further, if within twelve months after the termination of the Merger Agreement, the Company, any Seller or any of their respective Affiliates enters into a definitive agreement for or consummates an Acquisition Proposal or Superior Proposal with a person other than Acquiror or any of Acquiror’s Affiliates (an “Alternative Disposition”), then, upon the closing of such Alternative Disposition, each Seller shall tender and pay to, or shall cause to be tendered and paid to, Acquiror, or its designee, in immediately available funds, 50% of the Excess Profit realized by such Seller from such Alternative Disposition.

(b) If the Merger Agreement is terminated pursuant to Section 8.1(e) as a result of a breach following an Adverse Recommendation Change or receipt or public disclosure of a bona fide Acquisition Proposal after the date of the Merger Agreement, and, further, if within twelve months after the termination of the Merger Agreement, the Company, any Seller or any of their respective Affiliates effects an Alternative Disposition, then, upon the closing of such Alternative Disposition, each Seller shall tender and pay to, or shall cause to be tendered and paid to, Acquiror, or its designee, in immediately available funds, 50% of the Excess Profit realized by such Seller from such Alternative Disposition.

(c) If the Merger Agreement is terminated pursuant to Section 8.1(g) thereof and, further, if within twelve months after the termination date, the Company, any Seller or any of their respective Affiliates effects an Alternative Disposition, then, upon the closing of such Alternative Disposition, each Seller shall tender and pay to, or shall cause to be tendered and paid to, Acquiror, or its designee, in immediately available funds, 50% of the Excess Profit realized by such Seller from such Alternative Disposition.

(d) If, after the date of this Agreement, Acquiror agrees with the Company to increase the amount of the Merger Consideration to be paid by Acquiror and the Offer is consummated (an “Increased Offer”), upon the Closing each Seller shall tender and pay to, or shall cause to be tendered and paid to, Acquiror or its designee, in immediately available funds, 50% of the Excess Profit realized by such Seller, if any.

(e) For purposes of this Section 4.12, “Acquisition Proposal” shall having the meaning set forth in the Merger Agreement, except that in each instance where 15% occurs, 50% shall be substituted therefor).

(f) For purposes of this Section 4.12, “Excess Profit” of a Seller shall equal, if positive, (i) the aggregate consideration received by Seller, directly or indirectly, in respect of the Transfer of such Seller’s Shares pursuant to an Alternative Disposition or Increased Offer (including such Seller’s Pro Rata Portion of any consideration received by Kos Investments or Kos Holdings in respect of the Transfer by Kos Investments or Kos Holdings of shares of Company Common Stock) less (ii) the product obtained by multiplying $78 by such Seller’s Pro Rata Portion of the aggregate number of shares of Company Common Stock held by Kos Investments or Kos Holdings on the date hereof, provided, however, that “Profit” shall not

include severance benefits, bona fide severance benefits, amounts received upon exercise of options, restricted shares, director’s fees, employee benefits or other similar consideration. The aggregate consideration received by Seller shall include (i) any non-cash consideration (including any residual interest in Kos Investments, Kos Holdings or the Company retained immediately following such transaction whether represented by Shares, shares of Kos Holdings or Company Common Stock or other securities of any such entity to the extent that any such entity has engaged in a spin-off, recapitalization or similar transaction and any liabilities of Kos Investments or Kos Holdings being assumed by (or in the case of a sale of Kos Investments or Kos Holdings, retained by Kos Investments or Kos Holdings) as part of such transaction) which shall be valued at its fair market value as of the date of consummation, (ii) all deferred payments or consideration shall be discounted at a market rate to reflect a net present value and (iii) all contingent payments will be assumed to have been paid, in each case, as of the date of consummation.

(g) The fair market value of any non-cash consideration consisting of (A) securities listed on a national securities exchange or traded on the Nasdaq shall be equal to the average of the closing prices per share of such security as reported on such exchange or Nasdaq for each of the five trading days prior to the date of determination; and (B) property other than cash or securities of the type described in subclause (A) shall be the amount that a reasonable, willing buyer would pay to a reasonable, willing seller, taking into account the nature and terms of such property. In the event of a dispute as to the fair market value of such property, such disputed amounts shall be determined by a nationally recognized independent investment banking firm mutually agreed upon by the parties within five Business Days of the event requiring such selection. The determination made by such investment banking firm shall be final and binding on the parties.

(h) In the event that the Company shall declare and pay a stock or extraordinary dividend or other distribution, or effect a stock split, reverse stock split, reclassification, reorganization, recapitalization, combination or other like change with respect to shares of Company Common Stock, the calculation set forth in this Section 4.12 shall be adjusted to reflect fully such dividend, distribution, stock split, reverse stock split, reclassification, reorganization, recapitalization, combination or other like change and the value of any such dividend, distribution, stock split, reclassification, reorganization, recapitalization, combination (including any residual interest in the Company whether represented by Company Common Stock or other securities of the Company to the extent that the Company has engaged in a spin-off, recapitalization or similar transaction) shall be considered in determining the Profit as provided in this Section 4.12.

(i) Any payment to be made under this Section 4.12 shall be paid in cash, by wire transfer of same day funds, to an account designated by Acquiror.

(j) Solely for the avoidance of doubt, the defined term “Company Common Stock” as used in the Agreement, including for purposes of the calculation of any “Excess Profit” shall not include any shares of common stock of the Company that are not held directly or indirectly by Kos Investments or Kos Holdings including the shares of capital stock beneficially

held by the Shareholders (as defined in the Shareholders Agreement of even date herewith among Acquiror and Michael Jaharis, Mary Jaharis, Steven Jaharis, Kathryn Jaharis, the Michael and Mary Jaharis Alaska Community Property Trust, Cubs Management, LLC, Wilson Point Holdings, LP, Jaharis Holdings, LLC, Kathryn Jaharis and Richard Ledes Joint Account, 2002 Mary Jaharis Grantor Annuity Trust 2, the Steven Jaharis Generational Trust, the Jaharis Family Foundation, Inc. and Michael Steven Jaharis Trust 1, and included within the definition of “Shares” for purposes of such agreement).

(a) No Injunctions or Restraints. No Law or injunction (whether temporary, preliminary or permanent) enacted, entered, promulgated, enforced or issued by any Governmental Entity or other legal restraint or prohibition preventing the consummation of the Acquisition shall be in effect; provided, however, that prior to asserting this condition, the party asserting this conditions shall have used its reasonable best efforts to prevent the entry of any such injunction or other order and to appeal as promptly as possible any such judgment that may be entered.

(b) Offer. Acquiror or Merger Sub shall have accepted for payment and concurrently paid for shares of Company Common Stock pursuant to the Offer.

(a) Representations and Warranties. The representations and warranties of Sellers in this Agreement shall be true and correct in all material respects, as of the date of this Agreement and as of the Closing Date as though made on the Closing Date, except to the extent such representations and warranties expressly relate to an earlier date (in which case such representations and warranties shall be true and correct in all respects, on and as of such earlier date). Acquiror shall have received a certificate signed by or on behalf of each Seller to such effect.

(b) Performance of Obligations of Sellers. Sellers shall have performed in all material respects all obligations required to be performed by it under this Agreement at or prior to the Closing Date, and Acquiror shall have received a certificate signed by or on behalf of each Seller to such effect (such certificate, together with the certificate referred to in Section 5.02(a), a “Seller’s Closing Certificate”; the Seller’s Closing Certificate shall be delivered in accordance with Section 1.04(a) and shall be dated as of the Closing Date).

(c) Discharge of Indebtedness. The outstanding balance under (i) a line of credit extended to Kos Investments by Wachovia Bank N.A. and (ii) a loan from Mary Jaharis to Kos Investments pursuant to an unsecured promissory note and, in each case, all amounts due thereunder or under the applicable loan agreements or note, respectively, shall be fully paid and discharged at or prior to the Closing and Acquiror shall have received payoff and termination

letters in a form reasonably satisfactory to Acquiror with respect to each such obligation (the “Payoff Letters”).

(d) Letters of Resignation. Sellers have delivered (or caused to be delivered) a letter of resignation (including a release of claims) effective as of the Closing from each director and officer of Kos Investments and Kos Holdings in a form reasonably satisfactory to the Buyer (the “Resignation Letters”).

(e) Deliveries. Each Seller shall have made the deliveries contemplated by Section 1.04(a).

(a) Performance of Obligations of Acquiror and Sub. Acquiror shall have performed in all material respects all obligations to be performed by it under this Agreement at or prior to the Closing Date.

(b) Deliveries and Payments. Acquiror shall have made the deliveries and payments contemplated by Section 1.04(b).

(a) Each Seller shall jointly and severally indemnify Acquiror and its subsidiaries (the “Acquiror Indemnified Parties”) against and hold them harmless from any loss, liability, claim, damage or expense including legal fees and expenses (collectively, “Losses”) suffered or incurred by such Acquiror Indemnified Party arising from, relating to or otherwise in respect of:

(b) In no event shall Acquiror be indemnified to the extent of any liabilities taken into account in the calculation of the Closing Payment. The indemnification provided in this Article VII shall be the sole and exclusive remedy of Acquiror against Sellers for monetary relief under this Agreement or in respect of the transactions contemplated hereby. Each party hereto agrees that the previous sentence shall not limit or otherwise affect any non-monetary right or remedy which any party may have under this Agreement or otherwise limit or affect any party’s right to seek equitable relief, including the remedy of specific performance.

(a) Acquiror shall indemnify each Seller and its affiliates (the “Seller Indemnified Parties” and, together with the Acquiror Indemnified Parties, the “Indemnified

Parties”) against and hold them harmless from any Losses suffered or incurred by such Seller Indemnified Party arising from, relating to or otherwise in respect of:

(b) The indemnification provided for in this Article VII shall be the sole and exclusive remedy of Sellers against Acquiror for monetary relief under this Agreement or in respect of the transactions contemplated hereby. Each party hereto agrees that the previous sentence shall not limit or otherwise affect any non-monetary right or remedy which any party may have under this Agreement or otherwise limit or affect any party’s right to seek equitable relief, including the remedy of specific performance.

(a) The amount of any Loss for which indemnification is provided under this Article VII shall be net of any amounts actually recovered by the Indemnified Parties under insurance policies with respect to such Loss, and shall be (i) increased to take account of any net Tax cost incurred by the Indemnified Party arising from the receipt of indemnity payments hereunder (grossed up for such increase) and (ii) reduced to take account of any net Tax benefit realized by the Indemnified Party arising from the incurrence or payment of any such Loss. In computing the amount of any such Tax cost or Tax benefit, the Indemnified Parties shall be deemed to recognize all other items of income, gain, loss deduction or credit before recognizing any item arising from the receipt of any indemnity payment hereunder or the incurrence or payment of any indemnified Loss. Any indemnity payment under this Agreement shall be treated as an adjustment to the Purchase Price for Tax purposes.

(b) Taxes of Kos Investments and Kos Holdings shall be allocated to the period from the organization of Kos Investments and Kos Holdings, respectively, until and including the Closing (the “Preclosing Period”) as follows:

(c) The indemnity obligation under Section 7.01 or 7.02 in respect of Taxes for any taxable period shall initially be effected (i) in the case of a Tax Return filed by Sellers, by Acquiror paying Sellers the amount of any Taxes due on such Tax Return not attributable to a Preclosing Period and not previously paid by Acquiror or paid by Kos Investments or Kos Holdings after the Closing Date, and (ii) in the case of a Tax Return filed by Acquiror, by Sellers’ payment to Acquiror of the excess of (x) Taxes for the Preclosing Period as determined under Section 7.03(b) over (y) the amount of such Taxes paid by Sellers or any of its affiliates (other than Kos Investments and Kos Holdings) at any time plus the amount of such Taxes paid by Kos Investments or Kos Holdings prior to the Closing Date. Such payments shall initially be made no later than five days prior to the date on which the Tax Return in question is required to be filed or, if later, is actually filed. The payments to be made pursuant to this Section 7.03(c) shall be appropriately adjusted to reflect any final determination (which shall include the execution of Form 870-AD or successor form) with respect to Taxes for the applicable tax period.

(a) Tax Claims. (i) If a claim shall be made by any Taxing Authority, which, if successful, might result in an indemnity payment to any Indemnified Party pursuant to Section 7.01 or 7.02, respectively, or which may result in an adjustment to the Taxes of any Seller, Acquiror or Sellers, as applicable, shall promptly notify the other party in writing of such claim (a “Tax Claim”). If notice of a Tax Claim is not given to the indemnifying party within a sufficient period of time to allow such party to effectively contest such Tax Claim, or in reasonable detail to apprise the indemnifying party of the nature of the Tax Claim, in each case

taking into account the facts and circumstances with respect to such Tax Claim, the indemnifying party shall not be liable to the Indemnified Party.

(b) Third Party Claims. (i) In order for an Indemnified Party to be entitled to any indemnification provided for under Section 7.01 or 7.02, as applicable, in respect of, arising out of or involving a claim made by any person against an Indemnified Party (other than claims relating to Taxes which are subject to clause (a)) (a “Third Party Claim”), such Indemnified Party must notify the indemnifying party in writing of the Third Party Claim promptly following receipt by it of written notice of the Third Party Claim (which notice shall include a reasonably summary of the basis for such claim and an estimate of the applicable Loss to the extent then reasonably determinable). Thereafter, the applicable Indemnified Party shall deliver to the indemnifying party, promptly following receipt by it thereof, copies of all notices and documents (including court papers) received by it from the person asserting the Third Party Claim relating to the Third Party Claim (it being understood that delivery of such notices and documents by one Indemnified Party shall satisfy such obligation for all Indemnified Parties in respect of such notices and documents). Notwithstanding the foregoing, the failure or delay in delivering any items contemplated to be delivered to the indemnifying party in respect of a Third Party Claim pursuant to this paragraph shall only relieve the indemnifying party of its indemnification obligations hereunder in respect of such claim to the extent that it is actually prejudiced by such delay.

(c) Other Claims. In the event any Indemnified Party should have a claim under Section 7.01 or 7.02 that does not involve a Third Party Claim or a claim relating to Taxes (which are subject to clause (a) of this Section 7.05) being asserted against or sought to be collected from such Indemnified Party, the Indemnified Party shall deliver notice of such claim with reasonable promptness to Sellers or Acquiror, as applicable (which notice shall include a reasonable summary of the basis for such claim and an estimate of the amount of the applicable Loss to the extent then reasonably determinable). Notwithstanding the foregoing, the failure or delay in delivering any items contemplated to be delivered to the indemnifying party in respect of any claim pursuant to this paragraph shall only relieve the indemnifying party of its indemnification obligations hereunder in respect of such claim to the extent that it is actually prejudiced by such delay.

if to Acquiror:

with a copies (which shall not constitute notice) to:

if to the Sellers:

(c) Parent shall provide or cause to be provided to Merger Sub on a timely basis the funds necessary to purchase any Shares that Merger Sub becomes obligated to purchase pursuant to the Offer.

shall give Parent and Merger Sub a reasonable opportunity to review and comment on the Schedule 14D-9 and any amendments thereto.

(b) Pursuant to the Merger, the bylaws of Merger Sub in effect immediately prior to the Effective Time shall be the bylaws of the Surviving Corporation until thereafter amended in accordance with their terms and the articles of incorporation of the Surviving Corporation and as provided by Law.

(b) each Share held in the treasury of the Company and each Share owned by Parent or Merger Sub immediately prior to the Effective Time shall be canceled and retired without any conversion thereof, and no payment or distribution shall be made with respect thereto;

(d) each share of common stock of Merger Sub issued and outstanding immediately prior to the Effective Time shall be converted into one share of common stock of the Surviving Corporation.

Parent shall promptly deposit cash into the Exchange Fund in an amount which is equal to the deficiency in the amount of cash required to fully satisfy such cash payment obligations.

(c) The Company’s disclosure controls and procedures are reasonably designed to ensure that material information relating to the Company, including its Subsidiaries, is made known to the chief executive officer and the chief financial officer of the Company by others within those entities.

(e) No Proceedings relating to any Company Plan (other than routine claims for benefits in the ordinary course) are pending or, to the Company’s Knowledge, threatened.

(i) Each Company Plan that is a nonqualified deferred compensation plan subject to Code Section 409A has been operated and administered in good faith compliance with such Section 409A from the period beginning January 1, 2005 through the date hereof.

(b) For purposes of this Agreement, “Taxes” shall mean any taxes of any kind, including those on or measured by or referred to as income, gross receipts, capital, sales, use, ad valorem, franchise, profits, license, withholding, payroll, employment, excise, severance, stamp,

(c) For purposes of this Agreement, the following terms shall have the meanings assigned below:

(a) amend or otherwise change its Articles of Incorporation or Bylaws or any similar governing instruments;

(c) declare, set aside, make or pay any dividend or other distribution, payable in cash, stock, property or otherwise, with respect to any of its capital stock other than dividends or distributions by a direct or indirect wholly-owned Subsidiary to its parent;

(h) authorize any new capital expenditures, other than expenditures in amounts not more than $7,500,000 in the aggregate;

(k) make any material change in any financial or regulatory accounting principles, except as may be appropriate to conform to changes in statutory or regulatory accounting rules or GAAP or regulatory requirements with respect thereto;

(n) abandon, sell, license (except in the ordinary course of business consistent with past practice), assign or grant any Lien in or to any material item of Company Intellectual Property Rights or any other material assets;

(o) enter into, modify, amend, extend or terminate, or waive, release or assign any material rights or claims with respect to any Material Contract or any Contract that would have been deemed to be a Material Contract if entered into prior to the date hereof;

(p) enter into or amend any confidentiality agreements or arrangements, other than in the ordinary course of business consistent with past practice (other than as permitted by Section 6.4(a));

(r) take any action that would make the timely satisfaction of condition (c) set forth in Exhibit A impossible or unlikely; and

(s) resolve or agree to take any of the actions described in Sections 5.1(a) through 5.1(r).

(b) Parent shall cause all Shares purchased pursuant to the Offer and all other Shares owned by Parent, Merger Sub or any other subsidiary of Parent to be voted in favor of the approval of this Agreement.

(i) any breach of any representation or warranty of Sellers contained in this Agreement or certificate delivered by or on behalf of Sellers pursuant thereto, in each case other than with respect to Section 2.07 (but only excluding Section 2.07 to the extent a breach of the applicable representation or warranty would give rise to an indemnification claim pursuant to Section 7.01(a)(iii) or Section 7.01(a)(iv));

(ii) any breach of any covenant of Sellers contained in this Agreement and any liability (whether known, unknown, accrued, unaccrued, contingent, matured or unmatured) of Kos Investments and Kos Holdings in existence at the Closing Date other than any item that would give rise to an indemnification claim pursuant to Section 7.01(a)(iii) or Section 7.01(a)(iv) and liability that is discharged in connection with the Closing;

(iii) all liability for Taxes of Kos Investments and Kos Holdings allocable to the Preclosing Period as determined under Section 7.03(b); and

(iv) all liability for the Preclosing Periods (as a result of Treasury Regulation § 1.1502-6(a), by contract or otherwise) for Taxes of any entity or person (other than Kos Investments and Kos Holdings) which is or has ever been affiliated with Kos Investments or Kos Holdings if such Tax arises as a result of such affiliation.

(i) any breach of any representation or warranty of Acquiror contained in this Agreement or certificate delivered by or on behalf of Acquiror pursuant thereto;

(ii) any breach of the covenants of Acquiror contained in this Agreement; and

(iii) all liability for Taxes of Kos Investments and Kos Holdings for any taxable period ending after the Closing Date (except to the extent such taxable period began on or before the Closing Date or such Taxes are otherwise allocable to the Preclosing Period, in which case the indemnity under this Section 7.02(a)(iii) shall cover only that portion of any such Taxes that are not for the Preclosing Period).

(i) all Taxes for a taxable period that ends on or before the Closing Date shall be allocated to the Preclosing Period except to the extent such Taxes are attributable to a breach of a reasonable interpretation of a representation or a covenant by the Acquiror; and

(ii) in the case of any taxable period that includes (but does not end on) the Closing Date (a “Straddle Period”), (x) the amount of the periodic Taxes of Kos Investments and Kos Holdings not based on income or receipts (such as property taxes) for such Straddle Period shall be allocated to the Preclosing Period on the basis of equal daily proration for the entire Straddle Period; and (y) in the case of Taxes based on income or receipts, the amount of Taxes for such Straddle Period shall be allocated to the Preclosing Period in the same manner as if such taxable period ended as of the close of business on the Closing Date.

(ii) With respect to any Tax Claim relating solely to Taxes of Kos Investments or Kos Holdings for a Preclosing Period, Sellers shall control all proceedings in connection with such Tax Claim (including selection of counsel) and, without limiting the foregoing, may in their sole discretion pursue or forego any and all administrative appeals, proceedings, hearings and conferences with any Taxing Authority with respect thereto, and may, in their sole discretion, settle such claim and, if applicable, either pay the Tax claimed and sue for a refund where applicable Law permits such refund suits or contest the Tax Claim in any permissible manner; provided, however, that Acquiror and counsel of its own choosing and at its own expense shall have the right to participate fully in all aspects of the prosecution or defense of such Tax Claim. Acquiror shall control all proceedings taken in connection with any Tax Claim relating solely to Taxes of Kos Investments and Kos Holdings for a Straddle Period, provided that in such case Acquiror shall not settle any Taxes for the Straddle Period without the prior written consent of Sellers. Acquiror shall control all other proceedings with respect to all other Tax Claims.

(iii) Acquiror, Kos Investments and Kos Holdings shall cooperate with Sellers in contesting any Tax Claim, which cooperation shall include the retention and, upon Sellers’ request, the provision to Sellers of records and information which are reasonably relevant to such Tax Claim, and making employees available on a mutually convenient basis to provide additional information or explanation of any material provided hereunder or to testify at proceedings relating to such Tax Claim.

(ii) The indemnifying party shall be entitled to participate in the defense of any Third Party Claim and, if they so choose, to assume the defense thereof

with counsel selected by the indemnifying party; provided, however, that (A) such counsel is not reasonably objected to by the applicable Indemnified Party and (B) the indemnifying party shall not have the right to defend any Third Party Claim that seeks, in addition to or in lieu of monetary damages, any injunctive or other equitable relief. If the indemnifying party assumes such defense, each Indemnified Party shall have the right to participate in the defense thereof and to employ counsel, at its own expense, separate from the counsel employed by the indemnifying party, it being understood that the indemnifying party shall control such defense. The fees and expenses of counsel employed by the Indemnified Parties for any period during which the indemnifying party has not assumed the defense thereof shall be deemed indemnifiable Losses for purposes of Section 7.01. If the indemnifying party chooses to defend or prosecute a Third Party Claim, all the Indemnified Parties shall cooperate in the defense or prosecution thereof. Such cooperation shall include the retention and (upon the indemnifying party’s request) the provision to the indemnifying party of records and information that are reasonably relevant to such Third Party Claim, and making employees available on a mutually convenient basis to provide additional information and explanation of any material provided hereunder. Whether or not the indemnifying party assumes the defense of a Third Party Claim, no Indemnified Party shall admit any liability with respect to, or settle, compromise or discharge, such Third Party Claim without the indemnifying party’s prior written consent (which shall not be unreasonably withheld or delayed). If the indemnifying party assumes the defense of a Third Party Claim, the applicable Indemnified Parties shall agree to any settlement, compromise or discharge of a Third Party Claim that the indemnifying party may recommend and that by its terms provides for full indemnification of the Indemnified Parties in respect of the full amount of the liability in connection with such Third Party Claim, which releases the Indemnified Parties completely in connection with such Third Party Claim and that would not otherwise adversely affect the Indemnified Parties.

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 9, 2006 (November 5, 2006)

ABBOTT LABORATORIES

(Exact name of registrant as specified in its charter)

Illinois		1-2189		36-0698440
(State or other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification No.)

100 Abbott Park Road

Abbott Park, Illinois 60064-6400

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (847) 937-6100

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrants under any of the following provisions:

o		Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o		Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
x		Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o		Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 1.01 Entry into a Material Definitive Agreement

On November 5, 2006, Abbott Laboratories (“Abbott”) and Abbott’s wholly-owned subsidiary, Parthenon Acquisition Corp. f/k/a S&G Nutritionals, Inc. (“Merger Sub”), entered into an agreement and plan of merger (the “Merger Agreement”) with Kos Pharmaceuticals, Inc. (“Kos”), pursuant to which Abbott, through Merger Sub, will commence an offer to purchase all the outstanding shares of Kos (“Kos Shares”) at a purchase price of $78 per share in cash (the “Offer”). Following the consummation of the Offer, Merger Sub will merge with and into Kos (the “Merger”). The Merger Agreement includes customary representations, warranties and covenants by the respective parties.

Consummation of the Offer and the Merger are subject to customary closing conditions, including the expiration or termination of any waiting period (and any extension thereof) under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended. The consummation of the Offer is conditioned on Abbott acquiring a majority of the Kos Shares. Because the controlling shareholder of Kos, Michael Jaharis, and other shareholders of Kos identified below, who collectively own approximately 53% of the Kos Shares, have committed to tender or otherwise directly or indirectly sell their Kos Shares to Abbott in connection with the Offer, satisfaction of this condition is assured, unless the Kos Board of Directors withdraws its recommendation of the Offer in accordance with the Merger Agreement. If the Kos Board of Directors withdraws its recommendation, then consummation of the Offer also requires that holders of a majority of the Kos Shares owned by shareholders other than Michael Jaharis and the other shareholders identified below tender their shares to Abbott.

Under a Shareholders Agreement, dated as of November 5, 2006 (the “Shareholders Agreement”), among Abbott and Michael Jaharis, Mary Jaharis, Kathryn Jaharis, Steven Jaharis, Wilson Point Holdings, LP, Cubs Management, LLC, Jaharis Holdings, LLC, Steven Jaharis Generational Trust, 2002 Mary Jaharis Grantor Retained Annuity Trust 2, Michael and Mary Jaharis Alaska Community Property Trust, Kathryn Jaharis and Richard Ledes Joint Account, the Jaharis Family Foundation, Inc. and Michael Steven Jaharis Trust 1 (collectively, the “Jaharis Shareholders”), and Kos Investments, Inc. and Kos Holdings, Inc., the Jaharis Shareholders have committed to accept the Offer and to tender all Kos Shares beneficially owned by them, which represents approximately 35% of the outstanding shares of Kos.

Concurrently with the closing of the Offer, pursuant to a Stock Purchase Agreement, dated as of November 5, 2006, among Abbott, Michael Jaharis, Kathryn Jaharis, Steven Jaharis, Daniel Bell and Steven K. Aronoff (the “Stock Purchase Agreement”), Abbott has agreed to purchase 100% of the outstanding stock of Kos Investments, Inc. (“Kos Investments”), which directly and through a wholly owned subsidiary, Kos Holdings, Inc., owns approximately 18% of the Kos Shares. The total purchase price for Kos Investments will equal the cash amount that would otherwise have

been payable in the Offer for the Kos Shares owned by Kos Investments minus any liabilities of Kos Investments.

On November 6, 2006, Abbott issued a press release announcing the execution of the Merger Agreement. The press release is attached as exhibit 99.3.

Additional Information

The tender offer described in this report has not yet commenced, and this report is neither an offer to purchase nor a solicitation of an offer to sell securities. At the time the tender offer is commenced, Abbott will file a tender offer statement with the U.S. Securities and Exchange Commission. Investors and Kos security holders are strongly advised to read the tender offer statement (including an offer to purchase, letter of transmittal and related tender offer documents) and the related solicitation/recommendation statement that will be filed by Kos with the SEC, because they will contain important information. These documents will be available at no charge on the SEC’s Web site at www.sec.gov.

Private Securities Litigation Reform Act of 1995 — A Caution Concerning Forward-Looking Statements

Some statements in this report may be forward-looking statements for purposes of the Private Securities Litigation Reform Act of 1995. Abbott cautions that these forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially from those indicated in the forward-looking statements including: the tender offer may not be completed or the merger may not be consummated for reasons including because conditions precedent to the completion of the acquisition may not be satisfied. Economic, competitive, governmental, technological and other factors that may affect Abbott’s operations are discussed in Item 1A, “Risk Factors,” and Exhibit 99.1 to our Annual Report on Securities and Exchange Commission Form 10-K for the year ended Dec. 31, 2005 and in Item 1A, “Risk Factors,” to our Quarterly Report on Securities and Exchange Commission Form 10-Q for the period ended March 31, 2006, and are incorporated by reference. Abbott undertakes no obligation to release publicly any revisions to forward-looking statements as the result of subsequent events or developments.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits:

Exhibit No.		Description
2.1		Agreement and Plan of Merger, dated as of November 5, 2006, among Abbott Laboratories, Parthenon Acquisition Corp. f/k/a S&G Nutritionals, Inc. and Kos Pharmaceuticals, Inc.

99.1		Stock Purchase Agreement, dated November 5, 2006, among Abbott Laboratories, Michael Jaharis, Kathryn Jaharis, Steven Jaharis, Daniel Bell and Steven K. Aronoff

99.2		Shareholders Agreement, dated as of November 5, 2006, among Abbott Laboratories, Michael Jaharis, Mary Jaharis, Kathryn Jaharis, Steven Jaharis, Wilson Point Holdings, LP, Kos Investments, Inc., Cubs Management, LLC, Kos Holdings, Inc., Jaharis Holdings, LLC, Steven Jaharis Generational Trust, 2002 Mary Jaharis Grantor Retained Annuity Trust 2, Michael and Mary Jaharis Alaska Community Property Trust, Kathryn Jaharis and Richard Ledes Joint Account, the Jaharis Family Foundation, Inc. and Michael Steven Jaharis Trust 1

99.3		Press Release dated November 6, 2006.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

EXHIBIT INDEX

Exhibit No.		Description
2.1		Agreement and Plan of Merger, dated as of November 5, 2006, among Abbott Laboratories, Parthenon Acquisition Corp. f/k/a S&G Nutritionals, Inc. and Kos Pharmaceuticals, Inc.

99.1		Stock Purchase Agreement, dated November 5, 2006, among Abbott Laboratories, Michael Jaharis, Kathryn Jaharis, Steven Jaharis, Daniel Bell and Steven K. Aronoff

99.2		Shareholders Agreement, dated as of November 5, 2006, among Abbott Laboratories, Michael Jaharis, Mary Jaharis, Kathryn Jaharis, Steven Jaharis, Wilson Point Holdings, LP, Kos Investments, Inc., Cubs Management, LLC, Kos Holdings, Inc., Jaharis Holdings, LLC, Steven Jaharis Generational Trust, 2002 Mary Jaharis Grantor Retained Annuity Trust 2, Michael and Mary Jaharis Alaska Community Property Trust, Kathryn Jaharis and Richard Ledes Joint Account, the Jaharis Family Foundation, Inc. and Michael Steven Jaharis Trust 1

99.3		Press Release dated November 6, 2006.

Exhibit 2.1

AGREEMENT AND PLAN OF MERGER

among

ABBOTT LABORATORIES,

S&G NUTRITIONALS, INC.

and

KOS PHARMACEUTICALS, INC.

Dated as of November 5, 2006

TABLE OF CONTENTS

		Page
ARTICLE I	THE OFFER AND THE MERGER	2

SECTION 1.1	The Offer	2
SECTION 1.2	Company Actions	4
SECTION 1.3	Treatment of Options; MJ Warrant	5
SECTION 1.4	The Merger	5
SECTION 1.5	Closing; Effective Time	6
SECTION 1.6	Effects of the Merger	6
SECTION 1.7	Articles of Incorporation; Bylaws	6
SECTION 1.8	Directors and Officers	6

ARTICLE II	EFFECT OF THE MERGER ON THE CAPITAL STOCK OF THE CONSTITUENT CORPORATIONS	7

SECTION 2.1	Conversion of Securities	7
SECTION 2.2	Treatment of ESPP, Warrants, etc	7
SECTION 2.3	Surrender of Shares	8
SECTION 2.4	Withholding Taxes	10

ARTICLE III	REPRESENTATIONS AND WARRANTIES OF THE COMPANY	10

SECTION 3.1	Organization and Qualification; Subsidiaries; Joint Ventures	10
SECTION 3.2	Articles of Incorporation and Bylaws	11
SECTION 3.3	Capitalization	12
SECTION 3.4	Authority	13
SECTION 3.5	No Conflict; Required Filings and Consents	14
SECTION 3.6	Compliance	15
SECTION 3.7	SEC Filings; Financial Statements	16
SECTION 3.8	Absence of Certain Changes or Events	18
SECTION 3.9	Absence of Litigation	18
SECTION 3.10	Employee Benefit Plans	19
SECTION 3.11	Labor and Employment Matters	21
SECTION 3.12	Insurance	21
SECTION 3.13	Properties	21
SECTION 3.14	Tax Matters	22
SECTION 3.15	Information Supplied	23
SECTION 3.16	Opinion of Financial Advisors	23
SECTION 3.17	Brokers	24
SECTION 3.18	Takeover Statutes	24
SECTION 3.19	Intellectual Property	24
SECTION 3.20	Environmental Matters	25
SECTION 3.21	Contracts	26
SECTION 3.22	Affiliate Transactions	27

ARTICLE IV	REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB	27

SECTION 4.1	Organization	27
SECTION 4.2	Authority	27
SECTION 4.3	No Conflict; Required Filings and Consents	28
SECTION 4.4	Information Supplied	29
SECTION 4.5	Brokers	29
SECTION 4.6	Operations of Merger Sub	29
SECTION 4.7	Ownership of Shares	29
SECTION 4.8	Absence of Litigation	29
SECTION 4.9	Available Funds	29

ARTICLE V	CONDUCT OF BUSINESS PENDING THE MERGER	30

SECTION 5.1	Conduct of Business of the Company Pending the Merger	30

ARTICLE VI	ADDITIONAL AGREEMENTS	33

SECTION 6.1	Shareholders Meeting	33
SECTION 6.2	Proxy Statement	33
SECTION 6.3	Access to Information; Confidentiality	34
SECTION 6.4	Acquisition Proposals	34
SECTION 6.5	Employment and Employee Benefits Matters	36
SECTION 6.6	Directors’ and Officers’ Indemnification and Insurance	37
SECTION 6.7	Further Action; Efforts	39
SECTION 6.8	Public Announcements	40
SECTION 6.9	Notification	41
SECTION 6.10	Directors	41
SECTION 6.11	Transfer Taxes	42
SECTION 6.12	Anti-Takeover Statute	42
SECTION 6.13	Rule 14d-10(c) Matters	42
SECTION 6.14	NDA No. 20-381	42

ARTICLE VII	CONDITIONS OF MERGER	42

SECTION 7.1	Conditions to Obligation of Each Party to Effect the Merger	42
SECTION 7.2	Conditions to Obligations of Parent and Merger Sub	43

ARTICLE VIII	TERMINATION, AMENDMENT AND WAIVER	43

SECTION 8.1	Termination	43
SECTION 8.2	Effect of Termination	44
SECTION 8.3	Fees and Expenses	44
SECTION 8.4.	Amendment	46
SECTION 8.5	Waiver	46

iii

ARTICLE IX	GENERAL PROVISIONS	47

SECTION 9.1	Non-Survival of Representations, Warranties, Covenants and Agreements	47
SECTION 9.2	Notices	47
SECTION 9.3	Certain Definitions	48
SECTION 9.4	Severability	50
SECTION 9.5	Entire Agreement; Assignment	50
SECTION 9.6	Parties in Interest	50
SECTION 9.7	Governing Law	50
SECTION 9.8	Headings	50
SECTION 9.9	Counterparts	51
SECTION 9.10	Specific Performance; Jurisdiction	51
SECTION 9.11	Parent Guarantee	51
SECTION 9.12	Interpretation	52
SECTION 9.13	Waiver of Jury Trial	52

iii

INDEX OF DEFINED TERMS

Acquisition Agreement		36
Acquisition Proposal		34
Adverse Recommendation Change		35
Affiliate		47
Agreement		1
Anti-Takeover Statutes		24
Antitrust Law		39
Articles of Incorporation		11
Articles of Merger		6
Authorizations		15
beneficial owner		47
beneficially owned		48
Business Day		48
Bylaws		11
Certificate		7
Closing		5
Closing Date		6
Company		1
Company Common Stock		1
Company Disclosure Schedule		10
Company Employees		19
Company Intellectual Property Rights		24
Company Joint Venture		11
Company Plans		18
Company Requisite Vote		13
Company Securities		12
Company Stock Plans		12
Confidentiality Agreement		34
Contract		14
control		48
controlled		48
controlled by		48
Controlled Group Liability		48
Costs		37
DOJ		39
Drug Law		15
Effective Time		6
employee benefit plan		18
Environmental Laws		25
Environmental Permits		25
ERISA		18
ERISA Affiliate		48
ESPP		7
ESPP Termination Date		7
Exchange Act		14
Exchange Fund		8
Expiration Date		2
FBCA		1
FDA		15
FDA Act		14
Financial Advisor		23
Foreign Antitrust and Investment Laws		14
FTC		39
GAAP		48
Governmental Entity		14
HSR Act		14
Indemnified Parties		37
Independent Directors		40
Information Statement		14
Intellectual Property		24
Investments Stock Purchase		2
IRS		19
Jaharis Family		1
Knowledge		48
Law		14
Liens		11
Material Adverse Effect		10
Material Contract		26
Materials of Environmental Concern		26
Merger		1
Merger Consideration		7
Merger Recommendation		13
Merger Sub		1
MJ Warrant		19
Multiemployer Plan		18
Nasdaq		14
NLRB		20
Offer		1
Offer Documents		3
Offer Price		1
Offer Recommendation		13
Option		5
Option Consideration		5
owns beneficially		48
Parent		1
Parent Material Adverse Effect		27
Parent Plan		36
Parent Proceedings		29
Paying Agent		8
PBGC		19

Person		49
Pharmabio Warrant		8
Preferred Stock		11
Proceedings		18
Proxy Statement		14
Publication Date		2
Restricted Company Common Stock		7
Schedule 14D 9		4
SEC		2
SEC Reports		16
Securities Act		14
Share		1
Shareholders Agreement		1
Shareholders Meeting		32
Stock Purchase Agreement		1
Submission		42
Subsidiary		49
Superior Proposal		35
Surviving Corporation		5
Tax Return		23
Taxes		22
Termination Date		43
Termination Expenses		45
Termination Fee		44
Top-Up Option		3
Top-Up Shares		3
Transfer Taxes		41
under common control with		48
Withdrawal Liability		19

AGREEMENT AND PLAN OF MERGER

AGREEMENT AND PLAN OF MERGER, dated as of November 5, 2006 (this “Agreement”) among ABBOTT LABORATORIES, an Illinois corporation (“Parent”), S&G Nutritionals, Inc., a Delaware corporation and a direct wholly-owned Subsidiary of Parent (“Merger Sub”), and KOS PHARMACEUTICALS, INC., a Florida corporation (the “Company”).

WHEREAS the respective Boards of Directors of Parent, Merger Sub and the Company have approved the acquisition of the Company by Parent on the terms and subject to the conditions set forth in this Agreement;

WHEREAS, in furtherance of the acquisition of the Company by Parent on the terms and subject to the conditions set forth in this Agreement, Parent proposes to cause Merger Sub to make a tender offer (as it may be amended from time to time as permitted under this Agreement, the “Offer”) to purchase all the outstanding shares of common stock, par value $0.01 per share (a “Share”), of the Company (the “Company Common Stock”), at a price per Share of Company Common Stock of $78.00 (such amount, or any other amount per Share paid pursuant to the Offer and this Agreement, the “Offer Price”), net to the seller in cash, on the terms and subject to the conditions set forth in this Agreement;

WHEREAS, the Board of Directors of the Company has (i) determined that this Agreement and the transactions contemplated hereby, including the Offer and the merger (the “Merger”) of Merger Sub with and into the Company in accordance with the Business Corporation Act of the State of Florida (the “FBCA”), are advisable, fair to and in the best interests of the Company and its Shareholders, (ii) adopted and approved this Agreement and the transactions contemplated hereby, including the Offer and the Merger, in accordance with the FBCA, upon the terms and subject to the conditions set forth herein, and (iii) resolved to recommend the Offer and the approval of this Agreement and the other transactions contemplated hereby (including the Merger) by the shareholders of the Company;

WHEREAS, the Boards of Directors of Parent and Merger Sub have each adopted and approved, and Parent, as the sole shareholder of Merger Sub has approved this Agreement and declared it advisable, fair to and in the best interests of Parent and Merger Sub, respectively to enter into this Agreement providing for the Offer and Merger in accordance with the FBCA, upon the terms and subject to the conditions set forth herein;

WHEREAS, as an inducement to and condition of Parent’s willingness to enter into this Agreement, certain shareholders (collectively, the “Jaharis Family”) will enter into a shareholders agreement dated as of the date hereof (the “Shareholders Agreement”), the form of which is attached as Annex 1, and the Board of Directors of the Company has approved the entry by the Jaharis Family into the Shareholders Agreement. The Shareholders Agreement will be entered into concurrently with the execution and delivery of this Agreement; and

WHEREAS, as an inducement to and condition of the Jaharis Family entering into the Shareholders Agreement, Parent and certain persons have entered into a stock purchase agreement dated as of the date hereof (the “Stock Purchase Agreement”), the form of which is

attached as Annex 2, providing for the purchase by Parent of all outstanding shares of Kos Investments, Inc. (the “Investments Stock Purchase”).

NOW, THEREFORE, in consideration of the foregoing and the mutual covenants, agreements and representations herein contained, and intending to be legally bound hereby, Parent, Merger Sub and the Company hereby agree as follows:

The Company hereby represents and warrants to Parent and Merger Sub that, except as identified in the SEC Reports or as set forth on the Company Disclosure Schedule delivered by the Company to the Parent and Merger Sub prior to the execution of this Agreement (the “Company Disclosure Schedule”), it being understood and agreed that (i) each item in a particular section of the Company Disclosure Schedule applies only to such section and to any other section to which its relevance is readily apparent and (ii) each item in the SEC Reports applies only to such section of this Agreement to which its relevance is readily apparent:

“Environmental Laws” shall mean all foreign, federal, state, or local statutes, regulations, ordinances, codes, or decrees protecting the quality of the ambient air, soil, surface water or groundwater, in effect as of the date of this Agreement.

“Environmental Permits” shall mean all permits, licenses, registrations, and other authorizations required under applicable Environmental Laws.

“Materials of Environmental Concern” shall mean any hazardous, acutely hazardous, or toxic substance or waste defined and regulated as such under Environmental Laws, including the federal Comprehensive Environmental Response, Compensation, and Liability Act or the federal Resource Conservation and Recovery Act, as well as petroleum or any other fraction thereof.

Parent and Merger Sub hereby, jointly and severally, represent and warrant to the Company that:

For purposes of this Agreement, the term “Superior Proposal” means any written offer that did not result from a breach of this Section 6.4(a) made by a third party that the Board of Directors of the Company reasonably determines to be bona fide for a transaction that if consummated, would result in such third party (or in the case of a direct merger between such third party and the Company, the shareholders of such third party) acquiring, directly or indirectly, more than 60% of the voting power of the Company Common Stock (or, in the case of a direct merger, the common stock of the resulting company) or all or substantially all the consolidated assets of the Company and its subsidiaries for consideration consisting of cash and/or securities payable to holders of shares of Company Common Stock that the Board of Directors of the Company determines in good faith, after consultation with its financial advisors, to be more favorable to holders of Company Common Stock than the Merger, taking into account all financial, regulatory, legal and other aspects of such offer and transaction (including the likelihood of prompt completion) and any changes to the terms of this Agreement proposed by Parent in response to such Superior Proposal or otherwise.

Abbott Laboratories
200 Abbott Park Road
Abbott Park, Illinois 60064
Attention: President, Pharmaceutical Products Division
Facsimile: 847-937-6683

with additional copies (which shall not constitute notice) to:

Abbott Laboratories
100 Abbott Park Road
Abbott Park, Illinois 60064
Attention: Senior Vice President, General Counsel and Secretary
Facsimile: 847-938-6277

Covington & Burling LLP
1330 Avenue of the Americas
New York, NY 10019
Attention: Scott F. Smith
Facsimile: 646-441-9056

Kos Pharmaceuticals, Inc.
1 Cedar Brook Drive
Cranbury, NJ 08512
Attention: Andrew I. Koven
Executive Vice President, General Counsel and
Corporate Secretary
Facsimile: 609-495-0907

with additional copies (which shall not constitute notice) to:

Cravath, Swaine & Moore LLP
825 Eighth Avenue
New York, NY 10019
Attention: Sarkis Jebejian
Facsimile: 212-474-3700

Holland & Knight LLP
195 Broadway, 24th Floor
New York, NY 10007
Attention: Steven Sonberg
Facsimile: 212-385-9010

Kramer Levin Naftalis & Frankel LLP
1177 Avenue of the Americas
New York, NY 10036
Attention: Thomas D. Balliett
Facsimile: 212-715-8000

[Remainder of Page Left Blank Intentionally]

IN WITNESS WHEREOF, Parent, Merger Sub and the Company have caused this Agreement to be executed as of the date first written above by their respective officers thereunto duly authorized.

	ABBOTT LABORATORIES


	By:	/s/ William Dempsey
		Name: William Dempsey
		Title: Senior Vice President, Pharmaceutical Operations


	S&G NUTRITIONALS, INC.


	By:	/s/ William Dempsey
		Name: William Dempsey
		Title: Authorized Officer


	KOS PHARMACEUTICALS, INC.


	By:	/s/ Adrian Adams
		Name: Adrian Adams
		Title: President and CEO

EXHIBIT A

Conditions of the Offer

Notwithstanding any other term of the Offer or this Agreement, neither Parent nor Merger Sub shall be required to accept for payment or, subject to any applicable rules and regulations of the SEC, including Rule 14e-l(c) under the Exchange Act (relating to Parent’s or Merger Sub’s obligation to pay for or return tendered Shares promptly after the termination or withdrawal of the Offer), to pay for any Shares tendered pursuant to the Offer unless (i) the Minimum Tender Condition has been satisfied and (ii) all statutory waiting periods (and any extensions thereof) applicable to the purchase of Shares pursuant to the Offer and the Investments Stock Purchase under the HSR Act shall have terminated or shall have expired. The term “Minimum Tender Condition” shall mean (x)(A) the number of Shares which have been validly tendered and not withdrawn prior to the expiration of the Offer plus (B) if the Investments Stock Purchase will be consummated concurrently with or immediately subsequent to the Offer, the number of Shares held by Kos Investments, Inc. and its subsidiaries, together represent at least a majority of the Fully Diluted Shares and (y) in the event an Adverse Recommendation Change has been effected (and not subsequently withdrawn), the number of Shares (other than Shares held by the Controlling Shareholder) which have been validly tendered and not withdrawn prior to the expiration of the Offer shall equal at least a majority of the Shares owned directly or indirectly by Persons other than the Controlling Shareholder (the “Majority Tender Condition”). The term “Fully Diluted Shares” means all outstanding securities entitled generally to vote in the election of directors of the Company on a fully diluted basis, after giving effect to the exercise or conversion of all options, rights and securities exercisable or convertible into such voting securities. The term “Controlling Shareholder” means the Jaharis Family, Kos Investments and Kos Holdings. Furthermore, notwithstanding any other term of the Offer or this Agreement, neither Parent nor Merger Sub shall be required to commence the Offer or accept for payment or, subject as aforesaid, to pay for, and may delay the acceptance for payment of, any Shares tendered pursuant to the Offer if, at any time on or after the date of this Agreement and before the expiration or termination of the Offer, any of the following conditions exists:

(a) any law (whether temporary, preliminary or permanent) exists or shall have been enacted, entered, promulgated or enforced, or any injunction shall have been issued and be in effect, by any United States or state court or United States Governmental Entity which prohibits, restrains or enjoins the consummation of the Offer, the Merger or the Investments Stock Purchase;

(b) there shall have occurred any change, occurrence or development that, individually or in the aggregate, has had or would reasonably be expected to have, a Material Adverse Effect on the Company;

(c) (i) the representations and warranties of the Company contained in this Agreement (other than those set forth in Sections 3.3 and 3.4) shall not be true

and correct (without giving effect to any limitation on any representation or warranty indicated by the words “Material Adverse Effect”, “in all material respects”, “in any material respect”, “material” or “ materially”) at such time (except to the extent expressly made as of an earlier date, in which case as of such earlier date), in each case except where the failure of any such representations and warranties to be so true and correct would not, or would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect on the Company and (ii) the representations and warranties of the Company set forth in Sections 3.3 and 3.4 shall not be true and correct in all material respects at such time;

(d) the Company shall have failed to perform in any material respect any obligation or to comply in any material respect with any agreement or covenant of the Company required to be performed or complied with by it under this Agreement;

(e) there shall not be pending any Proceeding by a Governmental Entity which does or would be reasonably likely to prevent the consummation of the transactions contemplated by this Agreement;

(f) this Agreement shall have been terminated in accordance with its terms; or

(g) the Company shall have failed to perform any obligation set forth in Section 6.14 of this Agreement.

At the request of Parent, the Company shall deliver to Parent a certificate executed on behalf of the Company by the chief executive officer or chief financial officer of the Company certifying that the matters set forth in sections (b), (c) and (d) have not occurred.

The foregoing conditions shall be in addition to, and not a limitation of the rights of Parent and Merger Sub to extend, terminate and/or modify the Offer pursuant to the terms and conditions of this Agreement.

The foregoing conditions are for the sole benefit of Parent and Merger Sub and subject to the terms and conditions of this Agreement, may be waived by Parent or Merger Sub, in whole or in part, at any time, at the sole discretion of Parent or Merger Sub. The failure by Parent, Merger Sub or any other affiliate of Parent at any time to exercise any of the foregoing rights shall not be deemed a waiver of any such right, the waiver of any such right with respect to particular facts and circumstances shall not be deemed a waiver with respect to any other facts and circumstances and each such right shall be deemed an ongoing right that may be asserted at any time and from time to time.

Exhibit 99.1

STOCK PURCHASE AGREEMENT

among

ABBOTT LABORATORIES,

and

SELLERS PARTY HERETO

Dated as of November 5, 2006

TABLE OF CONTENTS

		Page
ARTICLE I	Purchase and Sale of Shares; Closing	1

SECTION 1.01.	Purchase and Sale of the Shares	1
SECTION 1.02.	Closing	2
SECTION 1.03.	Escrow	2
SECTION 1.04.	Transactions To Be Effected at the Closing; Payment of Purchase Price	2

ARTICLE II	Representations and Warranties of Sellers	3

SECTION 2.01.	Execution and Delivery; Enforceability	3
SECTION 2.02.	No Conflicts; Consents	3
SECTION 2.03.	The Shares	4
SECTION 2.04.	Organization, Standing and Power	4
SECTION 2.05.	Assets	4
SECTION 2.06.	Capitalization of Kos Investments and Kos Holdings	5
SECTION 2.07.	Liabilities; Financial Information; SEC Reporting; Books and Records	5
SECTION 2.08.	Contracts	6
SECTION 2.09.	No Operations	6
SECTION 2.10.	Taxes	6
SECTION 2.11.	Employment Matters	7
SECTION 2.12.	Litigation	7
SECTION 2.13.	Compliance with Applicable Laws	7
SECTION 2.14.	Accounts; Safe Deposit Boxes; Powers of Attorney; Officers and Directors	7
SECTION 2.15.	Brokers; Schedule of Fees and Expenses	8
SECTION 2.16.	Private Offering	8
SECTION 2.17.	Information	8
SECTION 2.18.	Full Disclosure	8
SECTION 2.19.	Reliance	8

ARTICLE III	Representations and Warranties Relating to Acquiror	9

SECTION 3.01.	Organization, Standing and Power	9
SECTION 3.02.	Authority; Execution and Delivery; Enforceability	9
SECTION 3.03.	No Conflicts; Consents	9
SECTION 3.04.	Securities Act	10
SECTION 3.05.	Available Funds	10
SECTION 3.06.	No Other Representations	10

ARTICLE IV	Covenants and Agreements	10

SECTION 4.01.	Covenants Relating to Conduct of Business	10
SECTION 4.02.	Contracts; Affiliate Transactions; Powers of Attorney	11
SECTION 4.03.	Access to Information; Confidentiality	11
SECTION 4.04.	Further Action; Efforts	12
SECTION 4.05.	Fees and Expenses	12
SECTION 4.06.	Public Announcements	12
SECTION 4.07.	Preparation and Filing of Tax Returns	12
SECTION 4.08.	Amended Tax Returns for Preclosing Periods	13
SECTION 4.09.	Tax Cooperation	13
SECTION 4.10.	Post-closing Cooperation	13
SECTION 4.11.	Transfers of Shares	14
SECTION 4.12.	Alternative Transaction Payment.	14
SECTION 4.13.	Non-Solicitation	15
SECTION 4.14.	Appraisal Rights	16

ARTICLE V	Conditions Precedent	16

SECTION 5.01.	Conditions to Each Party’s Obligation To Effect the Acquisition	16
SECTION 5.02.	Conditions to Obligation of Acquiror	16
SECTION 5.03.	Condition to Obligation of Sellers	17

ARTICLE VI	Termination, Amendment and Waiver	17

SECTION 6.01.	Termination	17
SECTION 6.02.	Effect of Termination	17
SECTION 6.03.	Amendments	18

ARTICLE VII	Indemnification	18

SECTION 7.01.	Indemnification by Sellers	18
SECTION 7.02.	Indemnification by Acquiror	18
SECTION 7.03.	Calculation of Losses	19
SECTION 7.04.	Term of Indemnification	20
SECTION 7.05.	Procedures	20
SECTION 7.06.	Survival	23

ARTICLE VIII	General Provisions	23

SECTION 8.01.	Notices	23
SECTION 8.02.	Definitions	24
SECTION 8.03.	Severability	26
SECTION 8.04.	Entire Agreement; Third Parties; Assignment	27
SECTION 8.05.	Governing Law	27
SECTION 8.06.	Headings	27
SECTION 8.07.	Counterparts	27
SECTION 8.08.	Specific Performance; Jurisdiction	27
SECTION 8.09.	Interpretation	28
SECTION 8.10.	Waiver of Jury Trial	28
SECTION 8.11.	Disclosure Schedule	29
SECTION 8.12.	Legends	29

iii

Defined Terms Cross-Reference Table

Acquiror		1
Acquiror Indemnified Parties		18
Acquisition		1
affiliate		24
Affiliate		24
Agreement		1
Business Day		24
Closing		2
Closing Date		2
Closing Payment		24
Closing Payment Certificate		25
Code		25
Company		1
Company Common Stock		1
Confidentiality Agreement		11
Contract		25
control		24
controlled by		24
controlling		24
Disclosure Schedule		3
Exchange Act		3
GAAP		25
Governmental Entity		4
HSR Act		3
Indemnification Expiration Dates		20
Indemnified Parties		19
Jaharis Family		1
Kos Holdings		1
Kos Investments		1
Law		3
Liens		25
Losses		18
Merger Agreement		1
Merger Sub		1
Permitted Liens		25
person		25
Preclosing Period		19
Pro Rata Portion		25
Purchase Price		2
SEC		26
Securities Act		26
Seller		1
Seller Indemnified Parties		18
Seller’s Closing Certificate		16
Sellers		1
Shareholders Agreement		1
Shares		1
Straddle Period		20
subsidiary		26
Tax Claim		20
Tax Return		26
Taxes		26
Taxing Authority		26
Third Party Claim		21
Transfer		12
under common control with		24

STOCK PURCHASE AGREEMENT

STOCK PURCHASE AGREEMENT, dated as of November 5, 2006 (this “Agreement”), among ABBOTT LABORATORIES, an Illinois corporation (“Acquiror”), and Michael Jaharis, Kathryn Jaharis, Steven Jaharis, Daniel Bell and Steven K. Aronoff (each a “Seller” and collectively, “Sellers”). Capitalized terms used but not defined herein shall have the meanings given to such terms in the Merger Agreement.

WHEREAS, Sellers legally and beneficially own all the issued and outstanding shares of common stock, par value $0.01 per share (the “Shares”), of Kos Investments, Inc., a Delaware corporation (“Kos Investments”);

WHEREAS, Kos Investments legally and beneficially owns all of the issued and outstanding capital stock of Kos Holdings, Inc., a Delaware corporation (“Kos Holdings”);

WHEREAS, Kos Investments, directly or indirectly through Kos Holdings legally and beneficially owns 8,570,069 shares of common stock, par value $0.01 per share (the “Company Common Stock”), of Kos Pharmaceuticals, Inc., a Florida corporation (the “Company”);

WHEREAS, Acquiror, S&G Nutritionals, Inc., a direct wholly-owned subsidiary of Acquiror (“Merger Sub”), and the Company are, concurrently with the execution and delivery of this Agreement, entering into an Agreement and Plan of Merger dated the date hereof (the “Merger Agreement”);

WHEREAS, Acquiror and certain shareholders of the Company (collectively, the “Jaharis Family”) are, concurrently with the execution and delivery of the Merger Agreement, entering into a Shareholders Agreement dated the date hereof (the “Shareholders Agreement”); and

WHEREAS, as a condition to their willingness to enter into the Shareholders Agreement, the Jaharis Family has requested that Acquiror enter into this Agreement with Sellers pursuant to which Acquiror shall purchase the Shares subject to the terms and conditions hereof (such purchase and sale of the Shares is referred to in this Agreement as the “Acquisition”), which Acquisition is intended to be consummated immediately subsequent to the consummation of the Offer.

NOW, THEREFORE, in consideration of the foregoing and the mutual covenants, agreements and representations herein contained, and intending to be legally bound hereby, the parties hereto hereby agree as follows:

Except as set forth in the corresponding sections or subsections of the disclosure letter delivered to Acquiror by Sellers on the date hereof (the “Disclosure Schedule”) (it being understood that each item in a particular section of the Disclosure Schedule applies only to such section and to any other section to which its relevance is readily apparent), each Seller hereby jointly and severally represents and warrants to Acquiror that as of the date hereof and as of the Closing Date, except to the extent such representations and warranties relate to an earlier date (in which case such representations and warranties are made as of such earlier date):

Acquiror represents and warrants to Sellers that:

Agreement, and in any document delivered in connection herewith, or by Acquiror shall survive until the applicable Indemnification Expiration Dates.

Abbott Laboratories
200 Abbott Park Road
Abbott Park, Illinois 60064
Attention: President, Pharmaceutical Products Division
Facsimile: 847-937-6683

Abbott Laboratories
100 Abbott Park Road
Abbott Park, Illinois 60064
Attention: Senior Vice President, General Counsel and Secretary
Facsimile: 847-938-6277

Covington & Burling LLP
1330 Avenue of the Americas
New York, NY 10019
Attention: Scott E. Smith
Facsimile: 646-441-9056

Oikos Ventures LLC
c/o Steven K. Aronoff P.C.
499 Park Avenue, 6th Floor
New York, New York 10022

Attention: Steven K. Aronoff
Facsimile: 212-779-7605

Kramer Levin Naftalis & Frankel LLP
1177 Avenue of the Americas
New York, New York 10036
Attention: Thomas D. Balliett
Facsimile: 212-715-8100

with additional copies (which shall not constitute notice) to:

Milbank
1 Chase Manhattan Plaza
New York, NY 10005
Attention: Bruce Kayle
Facsimile: 212-822-5897

Cravath, Swaine & Moore LLP (only prior to closing of the Merger)
825 Eighth Avenue
New York, NY 10019
Attention: Sarkis Jebejian
Facsimile: 212-474-3700

Holland & Knight LLP (only prior to closing of the Merger)
195 Broadway, 24th Floor
New York, NY 10007
Attention: Steven Sonberg
Facsimile: 212-385-9010

An “Affiliate” or “affiliate” of any person means another person that directly or indirectly, through one or more intermediaries, controls, is controlled by, or is under common control with, such first person. For purposes of this definition, the term “control” (including the correlative terms “controlling”, “controlled by” and “under common control with”) means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a person, whether through the ownership of voting securities, by contract or otherwise. For purposes of this Agreement, the Company is not an Affiliate of Sellers, Kos Investments or Kos Holdings.

“Business Day” means any day on which banks are not required or authorized by law to close in New York, New York.

“Closing Payment” means (A) product of (x) the number of shares of Company Common Stock legally and beneficially owned by Kos Investments directly or indirectly through Kos Holdings by (y) $78.00, minus (B) any known Tax liabilities for the Preclosing Period (determined in accordance with Section 7.03(b)) and other existing non-Tax liabilities of Kos

Investments and Kos Holdings as of the Closing as set forth in the Closing Payment Certificate which will not be paid and discharged at Closing (which shall exclude, for the avoidance of doubt, obligations of Kos Investments and Kos Holdings under this Agreement or the Merger Agreement but shall include Sellers’ best estimate of Taxes allocable to the Preclosing Period under Section 7.03(b)).

“Closing Payment Certificate” means the certificate to be delivered by Sellers to Acquiror setting forth (A) the number of shares of Company Common Stock legally and beneficially owned by Kos Investments directly or indirectly through Kos Holdings, (B) the known tax liabilities of Kos Investments and Kos Holdings and (C) any other known liabilities of Kos Investments and Kos Holdings, in each case as of the Closing Date and, in the case of clauses (B) and (C), which will not be paid and discharged at Closing; provided that prior to delivery of the Closing Payment Certificate, Sellers shall be required to (i) consult with Acquiror as to the information set forth of such certificate and (ii) obtain Acquiror’s reasonable consent to the inclusion of such information on such certificate.

“Code” means the Internal Revenue Code of 1986, as amended.

“Contract” means, whether written or oral, any loan agreement, indenture, letter of credit (including related letter of credit application and reimbursement obligation), mortgage, security agreement, pledge agreement, deed of trust, bond, note, guarantee, surety obligation, warrantee, license, franchise, permit, power of attorney, purchase order, lease, and other agreement, contract, instrument, obligation, offer, commitment, arrangement and understanding.

“GAAP” means the generally accepted accounting principles in the United States, set forth in the Financial Accounting Standards Board (FASB) Statements of Financial Accounting Standards and Interpretations, FASB Emerging Issues Task Force consensuses, Accounting Principles Board (APB) Opinions, and rules and interpretative releases of the SEC, including SEC Staff Accounting Bulletins and other such statements by such other entity as may be approved by a significant segment of the accounting profession in the United States, in each case, as applicable as of the time for the relevant financial statements referred to herein.

“Liens” means any security interests, liens, claims, pledges, agreements, limitations in voting rights, changes or other encumbrances of any nature whatsoever.

“person” means any individual, firm, corporation, partnership, company, limited liability company, trust, joint venture, association, Governmental Entity or other entity.

“Permitted Liens” means (i) Liens for Taxes, assessments and other lienable services and other governmental charges which are not yet due and payable; and (ii) Liens arising out of this Agreement and the Merger Agreement.

“Pro Rata Portion” means, with respect to any Seller, the quotient of (x) the number of Shares held by such Seller on the Closing Date and (y) the total number of Shares held by all Sellers on the Closing Date.

“SEC” means the United States Securities and Exchange Commission.

“Securities Act” means the U.S. Securities Act of 1933, as amended and the rules and regulations promulgated thereunder.

A “subsidiary” of any person means another person of which such first person, (i) owns directly or indirectly an amount of the voting securities, other voting ownership or voting partnership interests sufficient to elect at least a majority of such other person’s board of directors or other governing body (or, if there are no such voting interests, 50% or more of the equity interests), (ii) in the case of partnerships, serves as a general partner, or (iii) in the case of a limited liability company, serves as a managing member. For purposes of this Agreement, the Company is not a subsidiary of Kos Investments or Kos Holdings.

“Tax Return” means any return, report, claim for refund, information return or statement filed or required to be filed with any governmental authority with respect to Taxes, including any schedule or attachment thereto or amendment thereof.

“Taxes” means any taxes of any kind, including those on or measured by or referred to as income, gross receipts, capital, sales, use, ad valorem, franchise, profits, license, withholding, payroll, employment, excise, severance, stamp, occupation, premium, value added, alternative minimum, assessment, property or windfall profits taxes, customs, duties or similar fees, assessments or charges of any kind whatsoever, together with any interest and any penalties, additions to tax or additional amounts imposed by any governmental authority, domestic or foreign.

“Taxing Authority” means any domestic, foreign, federal, national, state, county or municipal or other local government, any subdivision, agency, commission or authority thereof, or any quasi-governmental body exercising tax regulatory authority.

[Remainder of Page Left Blank Intentionally]

IN WITNESS WHEREOF, Acquiror and Sellers have duly executed this Agreement, all as of the date first written above.

ABBOTT LABORATORIES,


By:	/s/ William Dempsey
	Name:	William Dempsey
	Title:	Senior President, Pharmaceutical Operations


MICHAEL JAHARIS,


By:	/s/ Michael Jaharis
	Name:	Michael Jaharis
	Title:
	Shares:	19,800


KATHRYN JAHARIS,


By:	/s/ Kathryn Jaharis
	Name:	Kathryn Jaharis
	Title:
	Shares:	2,600


STEVEN JAHARIS,


By:	/s/ Steven Jaharis
	Name:	Steven Jaharis
	Title:
	Shares:	2,500

DANIEL BELL,


By:	/s/ Daniel Bell
	Name:	Daniel Bell
	Title:
	Shares:	2,000


STEVEN K. ARONOFF,


By:	/s/ Steven K. Aronoff
	Name:	Steven K. Aronoff
	Title:
	Shares:	300

Exhibit 99.2

SHAREHOLDERS AGREEMENT

SHAREHOLDERS AGREEMENT, dated as of November 5, 2006 (this “Agreement”), by and between ABBOTT LABORATORIES, an Illinois corporation (“Parent”), on the one hand, and Michael Jaharis, Mary Jaharis, Kathryn Jaharis, Steven Jaharis, Wilson Point Holdings, LP, Kos Investments, Inc., Cubs Management, LLC, Kos Holdings, Inc., Jaharis Holdings, LLC, Steven Jaharis Generational Trust, 2002 Mary Jaharis Grantor Retained Annuity Trust 2, Michael and Mary Jaharis Alaska Community Property Trust, Kathryn Jaharis and Richard Ledes Joint Account, the Jaharis Family Foundation, Inc. and Michael Steven Jaharis Trust 1 (collectively, the “Shareholders”), on the other hand. Capitalized terms used but not defined herein shall have the meanings given to such terms in the Merger Agreement.

W I T N E S S E T H:

WHEREAS, Parent, S&G Nutritionals, Inc., a Delaware corporation and a direct wholly-owned Subsidiary of Parent (“Merger Sub”), and Kos Pharmaceuticals, Inc., a Florida corporation (the “Company”), are, concurrently with the execution and delivery of this Agreement, entering into an Agreement and Plan of Merger, dated the date hereof (the “Merger Agreement”); and

WHEREAS, as of the date hereof, the Shareholders are the beneficial owners (as defined under Rule 13d-3 of the Exchange Act) of 16,842,555 Shares, as more specifically set forth on the signature page to this Agreement (the “Existing Shares” and, together with any Shares, options to purchase Shares or other voting capital stock of the Company acquired by the Shareholders after the date hereof, the “Shares”); and

WHEREAS, as a condition to its willingness to enter into the Merger Agreement, Parent has requested that the Shareholders enter into this Agreement.

NOW, THEREFORE, in consideration of the foregoing and the mutual representations, warranties, covenants and agreements contained herein, and intending to be legally bound hereby, the parties hereto hereby agree as follows:

ARTICLE I

AGREEMENTS

1.1 Agreement to Tender. The Shareholders agree to accept the Offer with respect to all the Shares and to tender all the Shares pursuant to the Offer. Such tender shall be made within ten Business Days of commencement of the Offer. The Shareholders shall not withdraw any Shares tendered pursuant to the Offer unless this Agreement terminates pursuant to Section 4.1. Parent or Merger Sub shall pay Shareholders for any Shares tendered in accordance with this Section 1.1 and not withdrawn on the date of acceptance of shares for payment pursuant to the Offer. The Shareholders agree to permit Parent and Merger Sub to publish and disclose in the Offer Documents and, if approval of the Company’s shareholders is required under the FBCA, any Proxy Statement (including all related documents and schedules filed with the SEC)

his, her or its identity and ownership of Shares, the nature of his, her or its commitments, arrangements and understandings under this Agreement and any other information required by applicable Law.

1.2 Agreement to Vote. The Shareholders agree that, from and after the date hereof and until this Agreement terminates pursuant to Section 4.1, at the Shareholders Meeting or any other meeting of the shareholders of the Company, however called, and at every adjournment or postponement thereof, or in connection with any written consent of the shareholders of the Company, relating to any proposed action by the shareholders of the Company with respect to the matters set forth in Section 1.2(b) below, the Shareholders irrevocably agrees to:

(a) appear at each such meeting or otherwise cause the Shares owned beneficially or of record by the Shareholders to be counted as present thereat for purposes of calculating a quorum; and

(b) vote (or cause to be voted), in person or by proxy, all the Shares owned by the Shareholders, and any other voting securities of the Company (whenever acquired), that are owned beneficially or of record by the Shareholders or as to which they have, directly or indirectly, the right to vote or direct the voting, (i) in favor of approval of the Merger Agreement and any other action of the Company’s shareholders requested in furtherance thereof, (ii) against any action or agreement submitted for approval of the shareholders of the Company that would reasonably be expected to result in a breach of any covenant, representation or warranty or any other obligation or agreement of the Company contained in the Merger Agreement or of the Shareholders contained in this Agreement or of Kos Investments, Inc. under the Stock Purchase Agreement; (iii) against any action, agreement or transaction submitted for approval to the shareholders of the Company that would reasonably be expected to materially impede, interfere or be inconsistent with, delay, postpone, discourage or materially and adversely affect the timely consummation of the Offer or the Merger; and (iv) against any other action, agreement or transaction submitted for approval to the shareholders of the Company that would constitute an Acquisition Proposal.

ARTICLE II

REPRESENTATIONS AND WARRANTIES

2.1 Representations and Warranties of the Shareholders. The Shareholders jointly and severally hereby represent and warrant to Parent as follows:

(a) Authorization; Validity of Agreement; Necessary Action. Each Shareholder has full power and authority to execute and deliver this Agreement and to consummate the transactions contemplated hereby. Each of the persons executing this Agreement on behalf of the Shareholder has full power and authority to execute and deliver this Agreement on behalf of such Shareholder and to thereby bind such Shareholder. The execution and delivery of this Agreement and the consummation of the transactions contemplated hereby have been duly authorized by all necessary action

(corporate or otherwise) on the part of each Shareholder. This Agreement has been duly executed and delivered by the Shareholders and constitutes a valid and binding obligation of the Shareholders, enforceable in accordance with its terms (except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights generally and to general equity principles). If Shareholder is married and the Shares set forth on the signature page hereto constitute community property under applicable laws, this Agreement has been duly authorized, executed and delivered by, and constitutes the valid and binding agreement of, Shareholder’s spouse.

(b) Ownership. As of the date hereof, the number of shares of the Company Common Stock beneficially owned (as defined under Rule 13d-3 of the Exchange Act) by each Shareholder is set forth opposite such Shareholder’s name on the signature page to this Agreement. The Existing Shares are, and (except as otherwise expressly permitted by this Agreement) any additional shares of Company Common Stock and any options to purchase shares of Company Common Stock acquired by the Shareholders after the date hereof and prior to the Effective Time will be, owned beneficially by the Shareholders. As of the date hereof, the Existing Shares constitute all of the shares of Company Common Stock held of record, beneficially owned by or for which voting power or disposition power is held or shared by the Shareholders. The Shareholders have and (except as otherwise expressly permitted by this Agreement) will have at all times through the Effective Time sole voting power, sole power of disposition, sole power to issue instructions with respect to the matters set forth in Article I or Section 3.1 hereof, and sole right, power and authority to agree to all of the matters set forth in this Agreement, in each case with respect to all of the Existing Shares and with respect to all of the Shares at the Effective Time, with no limitations, qualifications or restrictions on such rights, subject to applicable federal securities laws and the terms of this Agreement and subject to the agreement among the Shareholders with respect to the voting of certain of the Shares, which agreement shall not prevent or impede the performance by any Shareholder or any of its obligations hereunder. The Shareholders have good and valid title to the Existing Shares, free and clear of any Liens (other than Liens permitted by Section 3.2 of this Agreement (the “MJ Liens”)) and the Shareholders will have good and valid title to such Existing Shares and any additional shares of Company Common Stock and options to purchase shares of Company Common Stock acquired by the Shareholders after the date hereof and prior to the Effective Time, free and clear of any Liens (other than the MJ Liens). Each Shareholder further represents that any proxies heretofore given in respect of the Shares owned beneficially and of record by such Shareholder, if any, are revocable, and hereby revokes such proxies.

(c) No Violation. The execution and delivery of this Agreement by the Shareholders does not, and the performance by the Shareholders of their obligations under this Agreement will not, (i) conflict with or violate any Law applicable to the Shareholders or by which any of their assets or properties is bound or (ii) conflict with, result in any breach of or constitute a default (or an event that with notice or lapse of time or both would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or require payment under, or result in the creation of any Lien on the properties or assets of the Shareholders pursuant to, any note,

bond, mortgage, indenture, contract, agreement, lease, license, permit, franchise or other instrument or obligation to which any of the Shareholders is a party or by which the Shareholders or any of their assets or properties is bound, except for any of the foregoing as could not reasonably be expected, either individually or in the aggregate, to materially impair the ability of the Shareholders to perform their obligations hereunder or to consummate the transactions contemplated hereby on a timely basis. The execution and delivery of this Agreement by the Shareholders do not, and the performance of this Agreement by the Shareholders will not, require any consent, approval, authorization or permit of, or filing with or notification to any (i) Governmental Entity, except for filings that may be required under the Exchange Act and the HSR Act or (ii) third party (including with respect to individuals, any spouse, and with respect to trusts, any co-trustee or beneficiary).

(d) Information. None of the information relating to the Shareholders provided by or on behalf of the Shareholders for inclusion in the Offer Documents, the Schedule 14D-9 or any Proxy Statement will, at the respective times such documents are filed with the SEC or are first published, sent or given to shareholders of the Company, contain any untrue statement of material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading.

(e) Reliance. The Shareholders understand and acknowledge that Parent is entering into the Merger Agreement and the Stock Purchase Agreement in reliance upon the Shareholders’ execution and delivery of this Agreement.

ARTICLE III

OTHER COVENANTS

3.1 Further Agreements of Shareholders. (a) The Shareholders hereby agree, while this Agreement is in effect, and except as expressly contemplated hereby, not to, directly or indirectly (i) grant any proxies or enter into any voting trust or other agreement or arrangement with respect to the voting of any Shares or (ii) sell, transfer, pledge, encumber, assign, distribute, gift or otherwise dispose of (including by operation of law, other than by death of any person) (collectively, a “Transfer”) or enter into any contract, option or other arrangement or understanding with respect to any Transfer (whether by actual disposition or effective economic disposition due to hedging, cash settlement or otherwise) of, any of the Existing Shares, any additional shares of Company Common Stock and options to purchase shares of Company Common Stock acquired beneficially or of record by the Shareholders after the date hereof, or any interest therein. The Shareholders shall not seek or solicit any such Transfer or any such contract, option or other arrangement or understanding with respect to any Transfer, and shall promptly notify (and provide information reasonably requested by) Parent, if any Shareholder shall be approached or solicited, directly or indirectly, by any Person with respect to any of the foregoing. Notwithstanding the foregoing, nothing contained in this Section 3.1(a) shall restrict the Shareholders from making Transfers to effect estate planning and gifts so long as the transferee in such Transfer shall execute an agreement to be bound by the terms of

this Agreement and such Transfer shall not result in the incurrence of any Lien upon any Shares.

(b) In case of a stock dividend or distribution, or any change in Company Common Stock by reason of any stock dividend or distribution, split-up, recapitalization, combination, exchange of shares or the like, the term “Shares” shall be deemed to refer to and include the Shares as well as all such stock dividends and distributions and any securities into which or for which any or all of the Shares may be changed or exchanged or which are received in such transaction.

(c) The Shareholders agree, while this Agreement is in effect, to notify Parent promptly in writing of the number of any additional shares of Company Common Stock, any options to purchase shares of Company Common Stock or other securities of the Company acquired by the Shareholders, if any, after the date hereof.

(d) The Shareholders agree, while this Agreement is in effect, (i) not to take, agree or commit to take any action that would reasonably be expected to make any representation and warranty of the Shareholders, as applicable, contained in this Agreement inaccurate in any respect as of any time during the term of this Agreement or (ii) to take all reasonable action necessary to prevent any such representation or warranty from being inaccurate in any respect at any such time. The Shareholders further agree that they shall fully cooperate with Parent, as and to the extent reasonably requested by Parent, to effect the transactions contemplated hereby including the Offer and the Merger.

(e) The Shareholders agree that they shall not, and shall ensure that their agents and representatives shall not, (i) directly or indirectly, initiate, solicit, or knowingly, encourage or facilitate (including by way of furnishing information) any inquiries or the making of any proposal or offer with respect to an Acquisition Proposal, (ii) directly or indirectly, engage in any negotiations or discussions concerning, or provide access to its properties, or furnish or provide access to its books and records or any confidential information or data to, any Person relating to an Acquisition Proposal or (iii) otherwise cooperate in any way with, or assist or participate in, facilitate or encourage any effort or attempt by any other Person to do or seek any of the foregoing; provided, however, that the Shareholders may (x) provide access or furnish information with respect to the Company and its Subsidiaries to any Person making an Acquisition Proposal (and its representatives) if at such time the Company is permitted to do so pursuant to a confidentiality agreement in accordance with Section 6.4 of the Merger Agreement and (y) engage in discussions or negotiations with the Person making an Acquisition Proposal (and its representatives) regarding such Acquisition Proposal if at such time the Company is permitted to engage in, and is actually engaged in, discussions or negotiations with such Person regarding such an Acquisition Proposal. The Shareholders will, and will cause their respective agents and representatives to, immediately cease and cause to be terminated any existing activities, discussions or negotiations with any Persons conducted heretofore with respect to any Acquisition Proposal. The Shareholders shall also promptly (within 24 hours) notify Parent of the receipt of any Acquisition Proposal or any inquiry, proposal or offer that is reasonably likely to lead to an Acquisition Proposal after the date hereof, which notice shall include

the identity of the Person making such Acquisition Proposal or other inquiry, proposal or offer and the material terms and conditions thereof, and will keep Parent promptly and reasonably apprised of any related material developments, discussions and negotiations related thereto.

(f) The Shareholders agree that, immediately following the consummation of the Offer, the agreements listed below shall terminate, the Shareholders shall be deemed to have exercised the Non-Detachable Common Stock Purchase Warrant (referenced in (iii) below) and the related exercise price shall be deemed to have been paid through the conversion of the amount of principal or interest outstanding under any Note issued under the Revolving Credit and Loan Agreement (referenced in (ii) below), as result of which such Non-Detachable Common Stock Purchase Warrant shall become entitled to receive the consideration then set forth in the Merger Agreement.

(i) The Third Amended and Restated Registration Rights Agreement by and among Kos Pharmaceuticals, Inc., Kos Holdings, Inc., Kos Investments, Inc. and Michael Jaharis, dated as of December 19, 2002.

(ii) The Revolving Credit and Loan Agreement by and between Kos Pharmaceuticals, Inc. and Michael Jaharis, dated as of December 19, 2002.

(iii) The Non-Detachable Common Stock Purchase Warrant by and between Kos Pharmaceuticals, Inc. and Michael Jaharis, dated December 19, 2002.

(iv) The Second Amended and Restated Security Agreement by and between Kos Pharmaceuticals, Inc. and Michael Jaharis, dated as of December 19, 2002.

(v) The Second Amended and Restated Patent, Trademark and License Security Agreement by and between Kos Pharmaceuticals, Inc. and Michael Jaharis, dated as of December 19, 2002.

(vi) Second Amended and Restated Subsidiary Guaranty by and between Aeropharm and Michael Jaharis, dated as of December 19, 2002.

(vii) Second Amended and Restated Subsidiary Security Agreement by and between Aeropharm and Michael Jaharis, dated as of December 19, 2002.

(viii) Second Amended and Restated Stock Pledge Agreement by and between Kos Pharmaceuticals, Inc. and Michael Jaharis, dated as of December 19, 2002.

(ix) Amended and Restated Stock Pledge Agreement by and between Aeropharm and Michael Jaharis, dated as of December 19, 2002.

(x) Amended and Restated Subsidiary Security Agreement by and between IEP Pharmaceutical Devices, Inc. and Michael Jaharis, dated as of December 19, 2002.

(xi) Amended and Restated Subsidiary Guaranty by and between Aeropharm and Michael Jaharis, dated as of December 19, 2002.

(g) Each Shareholder hereby consents to and approves the actions taken by the Board of Directors of the Company in approving the Merger Agreement, the Offer, the Merger and the other transactions contemplated by the Merger Agreement. Each Shareholder hereby waives, and agrees not to exercise or assert, if applicable, any appraisal rights under Section 607.1323 through 607.1331 of the FBCA in connection with the Merger.

3.2 Permitted Transactions. The Shareholders may Transfer Shares to other Shareholders, to a legal entity controlled by a Shareholder or to a trust for the benefit of a Shareholder; provided that such legal entity or trust shall execute an agreement to be bound by the terms of this Agreement and such Transfer shall not result in the incurrence of any Lien upon any Shares. In addition, if Mary Jaharis and/or Michael Jaharis die prior to the termination of this Agreement, the Shareholders shall be entitled at any time thereafter to sell Shares and any other shares and options subject to this Agreement in such manner as may be necessary to fund all related estate and income taxes.

3.3 Indemnity. Without limiting any additional rights that any Shareholder may have under any agreement, Parent shall indemnify and hold harmless each Shareholder (and each officer, director, member, trustee and agent of a Shareholder) (the “Indemnified Parties”), against all claims, losses, liabilities, damages, judgments, inquiries, fines and reasonable fees, costs and expenses, including attorneys’ fees and disbursements, incurred in connection with any proceeding, whether civil, criminal, administrative or investigative, arising out of or pertaining to this Agreement and the transactions contemplated hereby, whether asserted or claimed prior to, at or after the termination of this Agreement, to the fullest extent permitted under applicable Law. In the event of any such proceeding, each Indemnified Party will be entitled to advancement from Parent of expenses incurred in the defense of any proceeding within ten business days of receipt by Parent from the Indemnified Party of a request therefore. Parent may, at its option, assume the defense of the Indemnified Party, with counsel reasonably satisfactory to the Indemnified Party. After notice from Parent of its election to assume the defense of the Indemnified Party, Parent will not be liable to the Indemnified Party under this Agreement for any legal or other expenses subsequently incurred by the Indemnified Party in connection with its defense. No Indemnified Party shall settle, compromise or consent to the entry of any judgment in any actual or threatened proceeding (and in which indemnification could be sought by such Indemnified Party hereunder) without the prior written consent of Parent.

3.4 Alternative Transaction Payment.

(a) If the Board of Directors of the Company has effected an Adverse Recommendation Change and the Merger Agreement is subsequently terminated pursuant to Section 8.1(h) thereof and, further, if within twelve months after the termination of the Merger Agreement, the Company, any Shareholder or any of their respective Affiliates enters into a definitive agreement for or consummates an Acquisition Proposal or Superior Proposal with a Person other than Parent or any of Parent’s Affiliates (an “Alternative Disposition”), then, upon the closing of such Alternative Disposition, each Shareholder shall tender and pay to, or shall cause to be tendered and paid to, Parent, or its designee, in immediately available funds, 50% of the Excess Profit realized by such Shareholder from such Alternative Disposition.

(b) If the Merger Agreement is terminated pursuant to Section 8.1(e) as a result of a breach following an Adverse Recommendation Change or receipt or public disclosure of a bona fide Acquisition Proposal after the date of the Merger Agreement and, further, if within twelve months after the termination of the Merger Agreement, the Company or any of its Affiliates enters into a definitive agreement for or consummates an Acquisition Proposal or Superior Proposal, then, upon the closing of such Acquisition Proposal or Superior Proposal, each Shareholder shall tender and pay to, or shall cause to be tendered and paid to, Parent, or its designee, in immediately available funds, 50% of the Excess Profit realized by such Shareholder from such Alternative Disposition

(c) If the Merger Agreement is terminated pursuant to Section 8.1(g) thereof and, further, if within twelve months after the termination date, the Company, any Shareholder or any of their respective Affiliates effects an Alternative Disposition, then, upon the closing of such Alternative Disposition, each Shareholder shall tender and pay to, or shall cause to be tendered and paid to, Parent, or its designee, in immediately available funds, 50% of the Excess Profit realized by such Shareholder from such Alternative Disposition.

(d) If, after the date of this Agreement, Parent agrees with the Company to increase the amount of the Merger Consideration to be paid by Parent and the Shares are Transferred to Parent pursuant to the Offer (an “Increased Offer”), upon the closing of the Increased Offer each Shareholder shall tender and pay to, or shall cause to be tendered and paid to, Parent or its designee, in immediately available funds, 50% of the Excess Profit realized by such Shareholder, if any.

(e) For purposes of this Section 3.4, “Acquisition Proposal” shall having the meaning set forth in the Merger Agreement, except that in each instance where 15% occurs, 50% shall be substituted therefor.

(f) For purposes of this Section 3.4, “Excess Profit” of a Shareholder shall equal, if positive, (i) the aggregate consideration received by the Shareholder,

directly or indirectly, in respect of the Transfer of such Shareholder’s Shares pursuant to an Alternative Disposition or Increased Offer, valuing any non-cash consideration (including any residual interest in the Company retained immediately following such transaction whether represented by Company Common Stock or other securities of the Company to the extent that the Company has engaged in a spin-off, recapitalization or similar transaction) at its fair market value as of the date of consummation, less (ii) the product obtained by multiplying $78.00 by the number of Shares Transferred by the Shareholder in that Transfer pursuant to such Alternative Disposition or Increased Offer. For purposes of calculating “Profit”, all deferred payments or consideration, which shall be discounted at a market rate to reflect net present value, and all contingent payments will be assumed to have been paid, in each case, as of the date of consummation.

(i) The fair market value of any non-cash consideration consisting of (A) securities listed on a national securities exchange or traded on the Nasdaq shall be equal to the average of the closing prices per share of such security as reported on such exchange or Nasdaq for each of the five trading days prior to the date of determination; and (B) property other than cash or securities of the type described in subclause (A) shall be the amount that a reasonable, willing buyer would pay to a reasonable, willing seller, taking into account the nature and terms of such property. In the event of a dispute as to the fair market value of such property, such disputed amounts shall be determined by a nationally recognized independent investment banking firm mutually agreed upon by the parties within five Business Days of the event requiring such selection. The determination made by such investment banking firm shall be final and binding on the parties and Parent, on the one hand, and the Shareholders (on a pro rata basis), on the other hand, shall each pay one-half of the expenses in connection with such determinations.

(ii) In the event that the Company shall declare and pay a stock or extraordinary dividend or other distribution, or effect a stock split, reverse stock split, reclassification, reorganization, recapitalization, combination or other like change with respect to shares of Company Common Stock, the calculation set forth in this Section 3.4 shall be adjusted to reflect fully such dividend, distribution, stock split, reverse stock split, reclassification, reorganization, recapitalization, combination or other like change and the value of any such dividend, distribution, stock split, reclassification, reorganization, recapitalization, combination (including any residual interest in the Company whether represented by Company Common Stock or other securities of the Company to the extent that the Company has engaged in a spin-off, recapitalization or similar transaction) shall be considered in determining the Excess Profit as provided in this Section 3.4, in each case, to the extent not previously adjusted pursuant to Section 3.1(b).

(g) Any payment to be made under this Section 3.4 shall be paid in cash, by wire transfer of same day funds, to an account designated by Parent.

(h) Solely for the avoidance of doubt, the defined term “Shares” as used in this Agreement, including for purposes of the calculation of any “Excess Profit”, shall not include any shares of capital stock of the Company that is not beneficially

owned by a Shareholder, including the shares of capital stock of the Company held directly or indirectly by Kos Investments, Inc, and that are included within the definition of “Company Common Stock” for purposes of the Stock Purchase Agreement of even date herewith among Kos Investments Inc, Kos Holdings, Inc., Michael Jaharis, Steven Jaharis, Kathryn Jaharis, Daniel Bell, and Steven Aronoff.

ARTICLE IV

MISCELLANEOUS

4.1 Termination. This Agreement shall terminate automatically, without any action on the part of any party hereto, upon the earlier to occur of (a) the Effective Time and (b) the termination of the Merger Agreement pursuant to its terms. Upon such termination, no party shall have any further obligations or liabilities hereunder except that (i) the obligations of the Shareholders under Section 3.4 and this Article IV shall survive termination and (ii) such termination shall not relieve any party from liability for any willful breach of this Agreement prior to such termination.

4.2 No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Parent any direct or indirect ownership or incidence of ownership of or with respect to any Shares. All rights, ownership and economic benefits of and relating to the Shares shall remain vested in and belong to the Shareholders, and Parent shall have no authority to manage, direct, superintend, restrict, regulate, govern or administer any of the policies or operations of the Company or exercise any power or authority to direct the Shareholders in the voting of any of the Shares, except as otherwise provided herein.

4.3 Shareholder Capacity. No person executing this Agreement, or any officer, director, partner, employee, agent or representative of such Person, who is or becomes during the term of this Agreement a director or officer of the Company shall be deemed to make any agreement or understanding in this Agreement in such Person’s capacity as a director or officer. Each Shareholder is entering into this Agreement solely in his capacity as the record holder or beneficial owner of, or the trustee of a trust whose beneficiaries are the beneficial owners of, such Shareholder’s Shares and nothing herein shall limit or affect any actions taken by a Shareholder in his capacity as a director or officer of the Company.

4.4 Notices. All notices, requests, claims, demands and other communications hereunder shall be in writing and shall be given (and shall be deemed to have been duly given upon receipt) by delivery in person, by facsimile or by registered or certified mail (postage prepaid, return receipt requested) to the respective parties at the following addresses (or at such other address for a party as shall be specified by like notice):

if to Parent to:

Abbott Laboratories
200 Abbott Park Road
Abbott Park, Illinois 60064
Attention: President, Pharmaceutical Products Division
Facsimile: 847-937-6683

with an additional copies (which shall not constitute notice) to:

Abbott Laboratories
100 Abbott Park Road
Abbott Park, Illinois 60064
Attention: Senior Vice President, General Counsel and Secretary
Facsimile: 847-938-6277

Covington & Burling LLP
1330 Avenue of the Americas
New York, NY 10019
Attention: Scott F. Smith
Facsimile: 646-441-9056

if to the Company:

Kos Pharmaceuticals, Inc.
1 Cedar Brook Drive
Cranbury, NJ 08512
Attention: Andrew I. Koven
Executive Vice President, General Counsel and
Corporate Secretary
Facsimile: 609-495-0907

with additional copies (which shall not constitute notice) to:

Cravath, Swaine & Moore LLP
Worldwide Plaza
825 Eighth Avenue
New York, NY 10019
Attention: Sarkis Jebejian
Facsimile: 212-474-3700

Holland & Knight LLP
195 Broadway, 24th Floor
New York, NY 10007
Attention: Steven Sonberg
Facsimile: 212-385-9010

if to the Shareholders:

c/o Steven K. Aronoff, P.C.
499 Park Avenue, 6th Floor
New York, NY 10022
Attention: Steven K. Aronoff, Esq.
Larry Copperman, Esq.
Facsimile: (212) 779-7605

Kramer Levin Naftalis & Frankel LLP
1177 Avenue of the Americas
New York, NY 10036
Attention: Thomas D. Balliett
Facsimile: 212-715-8000

4.5 Interpretation. When a reference is made in this Agreement to an Article, Section, Exhibit or Schedule, such reference shall be to an Article of, a Section of, or an Exhibit or Schedule to, this Agreement unless otherwise indicated. The table of contents and headings contained in this Agreement are for reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. Whenever the words “include”, “includes”, “including” or “such as” are used in this Agreement, they shall be deemed to be followed by the words “without limitation”. The word “will” shall be construed to have the same meaning and effect as the word “shall.” The words “hereof”, “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of this Agreement. The word “or” shall not be exclusive. The word “extent” in the phrase “to the extent” shall mean the degree to which a subject or other thing extends, and such phrase shall not mean simply “if”. The phrase “date hereof” or “date of this Agreement” shall be deemed to refer to November 5, 2006. Whenever used in this Agreement, any noun or pronoun shall be deemed to include the plural as well as the singular and to cover all genders. This Agreement shall be construed without regard to any presumption or rule requiring construction or interpretation against the party drafting or causing any instrument to be drafted. Any Contract, instrument or Law defined or referred to herein or in any Contract or instrument that is referred to herein means such Contract, instrument or Law as from time to time amended, modified or supplemented, including (in the case of Contracts or instruments) by waiver or consent and (in the case of Law) by succession of comparable successor Law and references to all attachments thereto and instruments incorporated therein. References to a person are also to its permitted successors and assigns.

4.6 Counterparts. This Agreement may be executed and delivered (including by facsimile transmission) in one or more counterparts, all of which shall be considered one and the same agreement and shall become effective when one or more counterparts have been signed by each of the parties and delivered to the other party, it being understood that both parties need not sign the same counterpart.

4.7 Entire Agreement. This Agreement (together with the Merger Agreement) constitutes the entire agreement and supersedes all prior agreements and understandings, both written and oral, between the parties with respect to the subject matter hereof.

4.8 Governing Law. Except to the extent that the FBCA is applicable, this Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware (without giving effect to choice of law principles thereof). Each of the parties hereto agrees that this Agreement (a) involves at least $100,000.00 and (b) has been entered into by the parties hereto in express reliance upon 6 Del. C. § 2708.

4.9 Specific Performance; Jurisdiction. The parties agree that irreparable damage would occur in the event that any of the provisions of this Agreement were not performed in accordance with their specific terms or were otherwise breached. It is accordingly agreed that in the event of a breach or threatened breach of this Agreement, the other parties hereto shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically the terms and provisions of this Agreement in the Court of Chancery of the State of Delaware or, if under applicable law exclusive jurisdiction over such matter is vested in the federal courts, any court of the United States located in the State of Delaware, this being in addition to any other remedy to which they are entitled at law or in equity. Each party hereto irrevocably waives any defenses based on adequacy of any other remedy, whether at law or in equity, that might be asserted as a bar to the remedy of specific performance of any of the terms or provisions hereof or injunctive relief in any action brought therefor by any other party hereto. In addition, each of the parties hereto (i) irrevocably submits itself to the personal jurisdiction of the Court of Chancery of the State of Delaware or any court of the United States located in the State of Delaware in the event any dispute arises out of this Agreement or any of the transactions contemplated by this Agreement, (ii) agrees that it will not attempt to deny or defeat such personal jurisdiction by motion or other request for leave from any such court, (iii) agrees that it will not bring any action relating to this Agreement or any of the transactions contemplated by this Agreement in any court other than the Court of Chancery of the State of Delaware or, if under applicable law exclusive jurisdiction over such matter is vested in the federal courts, any court of the United States located in the State of Delaware and (iv) consents to service being made through the notice procedures set forth in Section 4.4. Each of the parties hereby agrees that service of any process, summons, notice or document by U.S. registered mail to the respective addresses set forth in Section 4.4 shall be effective service of process for any Proceeding in connection with this Agreement or the transactions contemplated hereby.

4.10 Amendment. This Agreement may not be amended except by an instrument in writing signed on behalf of each of the parties hereto.

4.11 Enforcement. The parties agree that irreparable damage would occur in the event that any of the provisions of this Agreement were not performed in accordance with their specific terms. It is accordingly agreed that the parties shall be entitled to seek specific performance of the terms hereof, this being in addition to injunctive relief and any other remedy to which they are entitled at law or in equity. Each

of the parties further agrees to waive any requirements for the securing or posting of any bond in connection with obtaining any such equitable relief.

4.12 Severability. Any term or provision of this Agreement that is determined by a court of competent jurisdiction to be invalid or unenforceable in any jurisdiction shall, as to that jurisdiction, be ineffective to the extent of such invalidity or unenforceability without rendering invalid or unenforceable the remaining terms and provisions of this Agreement or affecting the validity or enforceability of any of the terms or provisions of this Agreement in any other jurisdiction, and if any provision of this Agreement is determined to be so broad as to be unenforceable, the provision shall be interpreted to be only so broad as is enforceable, in all cases so long as neither the economic nor legal substance of the transactions contemplated hereby is affected in any manner materially adverse to any party or its shareholders or limited partners.

4.13 Assignment; Third Party Beneficiaries. Neither this Agreement nor any of the rights, interests or obligations of any party hereunder shall be assigned by any of the parties hereto (whether by operation of law or otherwise) without the prior written consent of the other party. Any purported assignment without such consent shall be void. Subject to the preceding sentence, this Agreement will be binding upon, inure to the benefit of and be enforceable by the parties and their respective successors and permitted assigns. Each Shareholder agrees that this Agreement and the obligations hereunder shall attach to such Shareholder’s Shares and shall be binding upon any Person to whom legal or beneficial ownership of such Shares shall pass, whether by operation of law or otherwise, including such Shareholder’s heirs, guardians, administrators or successors. This Agreement is not intended to confer upon any person other than the parties hereto any rights or remedies hereunder.

4.14 No Waiver. The terms and provisions hereof may not be waived except by an instrument signed on behalf of the party waiving compliance. The failure of any party to exercise any right, power or remedy provided under this Agreement or otherwise available in respect of this Agreement at law or in equity, or to insist upon compliance by any other party with its obligations under this Agreement, and any custom or practice of the parties at variance with the terms of this Agreement, shall not constitute a waiver by such party of such party’s right to exercise any such or other right, power or remedy or demand such compliance.

4.15 Consents and Waivers. The Shareholders hereby give any consents or waivers that are reasonably required for the consummation of the Merger under the terms of any agreements to which any Shareholder is a party or pursuant to any rights the Shareholders may have.

4.16 Further Assurances. Subject to the terms and conditions of this Agreement, the Shareholders shall use their reasonable best efforts to take, or cause to be taken, all actions, and to do, or cause to be done, all things necessary to fulfill such Shareholder’s obligations under this Agreement.

4.17 Legends. Each Shareholder shall cause the Shares to bear a legend, stating that they are subject to the terms of this Agreement.

[Remainder of Page Left Blank Intentionally]

IN WITNESS WHEREOF, Parent and Shareholders have caused this Agreement to be executed as of the date first written above by their respective officers thereunto duly authorized.

	ABBOTT LABORATORIES,


	By:	/s/ William Dempsey
		Name: William Dempsey
		Title: Senior Vice President, Pharmaceutical Operatioins


	By:	/s/ Michael Jaharis
		Name: Michael Jaharis
		Title:
		Shares: 5,316,650


	MICHAEL AND MARY JAHARIS ALASKA COMMUNITY PROPERTY TRUST


	By:	/s/ Michael Jaharis
		Name: Michael Jaharis
		Title: Trustee
		Shares: 1


	By:	/s/ Mary Jaharis
		Name: Mary Jaharis
		Title:
		Shares:


	JAHARIS HOLDINGS, LLC


	By:	/s/ Mary Jaharis
		Name: Mary Jaharis
		Title: Manager
		Shares: 2,000,000




	By:	/s/ Kathryn Jaharis
		Name: Kathryn Jaharis
		Title:
		Shares: 165,875


	THE JAHARIS FAMILY FOUNDATION, INC.


	By:	/s/ Kathryn Jaharis
		Name: Kathryn Jaharis
		Title: President
		Shares: 2,844,410


	KATHRYN JAHARIS AND RICHARD LEDES JOINT ACCOUNT


	By:	/s/ Kathryn Jaharis
		Name: Kathryn Jaharis
		Title: Owner
		Shares: 350


	By:	/s/ Richard Ledes
		Name: Richard Ledes
		Title: Owner
		Shares: 350


		/s/ Steven Jaharis
		Name: Steven Jaharis
		Shares: 127,423


	WILSON POINT HOLDINGS, L.P.


	By:	/s/ Steven Jaharis
		Name: Steven Jaharis
		Title: Manager of the General Partner
		Shares: 3,841,649

	CUBS MANAGEMENT, LLC


	By:	/s/ Steven Jaharis
		Name: Steven Jaharis
		Title: Manager
		Shares: Not Applicable


	STEVEN JARARIS GENERATIONAL TRUST


	By:	/s/ Steven Jaharis
		Name: Steven Jaharis
		Title: Trustee
		Shares: 68,453

	2002 MARY JAHARIS GRANTOR RETAINED ANNUITY TRUST 2


	By:	/s/ Steven K. Aronoff
		Name: Steven K. Aronoff
		Title: Trustee
		Shares: 156,183


	MICHAEL STEVENS JAHARIS TRUST 1


	By:	/s/ Steven K. Aronoff
		Name: Steven K. Aronoff
		Title: Trustee
		Shares: 100

	KOS INVESTMENTS, INC.,


	By:	/s/ Kathryn Jaharis
		Name: Kathryn Jaharis
		Title: President
		Shares: Not Applicable


	KOS HOLDINGS, INC.,


	By:	/s/ Kathryn Jaharis
		Name: Kathryn Jaharis
		Title: President
		Shares: Not Applicable

Exhibit 99.3

		For Immediate Release


		Abbott
		*Media*
		Melissa Brotz
		(847) 935-3456 or
		Jonathon Hamilton
		(847) 935-8646
		*Financial Community*
		John Thomas
		(847) 938-2655 or
		Larry Peepo
		(847) 935-6722

		Kos Pharmaceuticals
		Jack Howarth
		(609) 495-0726
		Nichol Harber
		(609) 495-0726

ABBOTT TO EXPAND PRESENCE IN LIPID MANAGEMENT MARKET
WITH ACQUISITION OF KOS PHARMACEUTICALS

— Acquisition Strengthens Abbott’s Late-Stage Pipeline and Delivers Significant
Earnings-Per-Share Accretion Beginning in 2009 —

ABBOTT PARK, Ill., and CRANBURY, N.J., Nov. 6, 2006 — Abbott and Kos Pharmaceuticals, Inc. today announced a definitive agreement for Abbott to acquire Kos for $78 per share in cash, for a total transaction value of $3.7 billion, net of cash currently held by Kos. Based in Cranbury, N.J., Kos is a specialty pharmaceutical company that develops and markets proprietary medications for the treatment of chronic cardiovascular, metabolic and respiratory diseases. The company has a growing presence in the $20 billion lipid management market.

“Kos Pharmaceuticals is an excellent strategic fit for Abbott, both scientifically and commercially,” said Miles D. White, chairman and chief executive officer, Abbott. “This acquisition expands Abbott’s presence in the lipid management market and will provide several on-market and late-stage pipeline products. Kos also complements our existing commercial and research and development expertise, and increases our R&D spending capacity.”

“This is an opportune time to become a part of an organization like Abbott with the shared experience and additional resources to continue our R&D projects and cholesterol products,” said Adrian Adams, president and chief executive officer. “We believe that joining with Abbott will make available greater resources and continued innovation for the benefit of patients and physicians. Kos Pharmaceuticals, which was founded in 1988 by its current chairman emeritus, Michael Jaharis, and Daniel Bell, its current chairman, and two other employees, pioneered the HDL therapy area in the United States and firmly established Niaspan and Advicor as successful and highly differentiated therapies.”

Lipid Management Portfolio

The lipid management market is the single largest pharmaceutical segment and continues to grow at double-digit rates. Kos Pharmaceuticals’ two lead products are Niaspan®, an extended-release niacin product that raises HDL, or good cholesterol levels; and Advicor®, a Niaspan/lovastatin combination product that treats patients with multiple lipid disorders.

A new range of Niaspan Caplet Formulation products are currently under U.S. Food and Drug Administration review. Kos is also in late-stage development with Simcor®, a fixed-dose combination of Niaspan and simvastatin (generic Zocor®) to treat

lipid disorders, which is expected to be submitted for regulatory review in the United States in the first half of 2007. These on-market cholesterol products and development opportunities will join Abbott’s lipid management portfolio, which includes on-market TriCor® a next-generation fenofibrate, ABT-335; and a TriCor/Crestor® development program with AstraZeneca announced in July 2006.

Other Pipeline Products

Kos Pharmaceuticals is also developing a number of other products, including an asthma medication and an inhaled insulin. Flutiform, currently in late-stage development for adult and adolescent asthma by SkyePharma, will provide an expanded presence for Abbott in the $10 billion asthma market, in addition to Kos’ currently marketed asthma product. Kos is also developing an inhaled insulin product, which will complement Abbott’s significant presence in the diabetes market — with its leading glucose monitoring and diabetes nutritionals businesses.

Financial Terms

Under the terms of the agreement, Abbott will make a tender offer for all of the outstanding stock of Kos Pharmaceuticals for $78 per share or $3.7 billion, net of cash currently held by Kos. Abbott expects the addition of Kos to be $0.07 to $0.09 accretive to ongoing earnings per share in 2009 and significantly accretive in 2010 and beyond. In addition, Abbott expects the transaction to be $0.02 to $0.03 dilutive to ongoing earnings per share in 2007 and neutral to accretive in 2008. Following the closing, the transaction is expected to result in one-time charges, primarily for in-process research and development and integration expenses.

The transaction is structured as a tender offer for all outstanding shares of Kos Pharmaceuticals followed by a merger. The transaction is subject to customary closing

conditions, including antitrust clearance under the Hart-Scott Rodino Act and acquisition of a majority of the outstanding Kos Pharmaceuticals shares in the tender offer. Shareholders owning a majority of the shares of Kos Pharmaceuticals’ common stock have entered into agreements under which they agreed to tender their shares or have their shares acquired by Abbott.

TriCor Indication and Safety Information

TriCor (fenofibrate tablets) is a lipid-lowering agent used to treat abnormal lipid levels in the bloodstream, including cholesterol and triglycerides. TriCor is a once-daily treatment available in 145 mg and 48 mg tablets that can be taken with or without food.

TriCor, in addition to appropriate diet, is used to treat adults with high cholesterol, with or without elevated triglycerides (Fredrickson types IIa, IIb). TriCor reduces elevated LDL-C (“bad” cholesterol), total cholesterol, triglycerides and apolipoprotein B, and increases HDL-C (“good” cholesterol). The effect of TriCor on cardiovascular morbidity and mortality and noncardiovascular mortality has not been established. Abbott markets TriCor in the U.S. through an agreement with Solvay Pharmaceuticals. ABT-335 development is co-funded by Solvay Pharmaceuticals.

TriCor, in addition to appropriate diet, is also used to treat adults with high triglycerides (Fredrickson types IV and V). Excessive body weight, drinking alcohol, diseases such as diabetes and hypothyroidism, and various drugs can contribute to high triglyceride levels, and these should be assessed before a patient is prescribed TriCor tablets. TriCor should only be prescribed after reasonable attempts to modify lipid profile with diet modification, exercise and decreased alcohol consumption have failed. It is important for patients to stay on a diet restricted in saturated fat and cholesterol while taking TriCor.

TriCor tablets are not for everyone. TriCor should not be taken by people with serious liver, kidney or gallbladder disease, or by those who may be allergic or sensitive to the drug.

The combined use of TriCor and HMG-CoA reductase inhibitors (statins) has not been advised because of a potential for serious side effects that could lead to acute renal failure. The benefit of further alterations in lipid levels needs to be weighed against the increased risks of this drug combination.

TriCor tablets may cause changes in laboratory reports, especially in liver chemistry results. Regular periodic liver tests should be performed while patients are taking TriCor. Patients should contact their doctors if they feel pain in the stomach area while taking TriCor, as this can be a sign of gallstones or inflammation of the pancreas. TriCor may cause muscle pain or serious muscle disease, allergic-type reactions and possible changes in blood chemistry. If patients experience unexpected muscle pain, tenderness or weakness while taking TriCor, a health-care provider should be contacted immediately.

Patients should notify their doctor if they are taking any other drugs while taking TriCor including any other cholesterol-lowering medications. TriCor may have an effect on drugs that help prevent blood clotting, such as the blood thinner Coumadin® (warfarin sodium tablets, USP), and doctors should monitor blood-clotting tests more frequently.

Patients should tell their doctors about any side effects they experience, including breathing problems, back pain and headaches.

For more information about TriCor (fenofibrate) tablets, including full prescribing information, please visit www.tricortablets.com.

Niaspan Indication and Safety Information

Niaspan is the only FDA-approved, once-daily extended-release prescription formulation of niacin for treating abnormal cholesterol levels. Niaspan is indicated as an adjunct to diet when the response to a diet restricted in saturated fat and cholesterol and other nonpharmacologic measures alone has been inadequate, to reduce elevated total cholesterol, LDL-C, ApoB, and triglyceride levels, and to increase HDL-C in patients with primary hypercholesterolemia and mixed dyslipidemia. In patients with a history of myocardial infarction and hypercholesterolemia, niacin is indicated to reduce the risk of recurrent non-fatal myocardial infarction or coronary artery disease and hypercholesterolemia. Niacin, in combination with a bile acid binding resin, is indicated to slow progression or promote regression of atherosclerotic disease.

Niaspan is contraindicated in patients with allergies to any of its ingredients, active peptic ulcer disease, significant or unexplained persistent liver dysfunction, or arterial bleeding. Niaspan should not be substituted for equivalent doses of immediate-

release niacin. Niaspan should be prescribed with caution in patients who consume substantial amounts of alcohol and/or have a past history of liver disease. Liver function tests should be performed on all patients during therapy with Niaspan. Use of Niaspan with other lipid-altering medications called statins may increase the risk of rhabdomyolysis, a rare condition that causes muscles to breakdown. The most common side effect with Niaspan is flushing of the skin. Other commonly reported side effects include indigestion, headache, pain, abdominal pain, nausea, itching, diarrhea, running nose, vomiting and rash. Patients with diabetes should carefully monitor their blood sugar and report changes to their doctor.

Advicor Indication and Safety Language

Advicor is a fixed-dose combination product and is not indicated for initial therapy. Advicor is indicated as an adjunct to diet when the response to a diet restricted in saturated fat and cholesterol and other nonpharmacologic measures alone have been inadequate. Advicor is indicated for the treatment of primary hypercholesterolemia and mixed dyslipidemia in patients who are taking: lovastatin who require additional TG-lowering or HDL-raising who may benefit from having niacin added to their therapy or; niacin who require further LDL-lowering who may benefit from having lovastatin added to their therapy.

Advicor is contraindicated in patients with a known hypersensitivity to their components, active liver or peptic ulcer disease, unexplained persistent liver enzyme elevation, arterial bleeding. Advicor should not be taken by pregnant or nursing women. This product should be prescribed with caution in patients who drink substantial amounts of alcohol and/or have a past history of liver disease. Liver function tests should be monitored periodically. Combination therapy with niacin and a statin may increase the risk of myopathy and a serious but rare condition referred to as

rhabdomyolysis. The most common adverse event with Advicor is flushing of the skin. Other commonly reported adverse events include headache, gastrointestinal symptoms and rash. Diabetic patients may experience a dose-related rise in blood sugar with these products.

About Kos Pharmaceuticals, Inc.

Kos Pharmaceuticals, Inc. is a fully integrated specialty pharmaceutical company engaged in developing, commercializing, manufacturing and marketing proprietary prescription products for the treatment of chronic diseases with a particular focus on the cardiovascular, metabolic and respiratory disease areas. The company’s principal product development strategy is to reformulate existing pharmaceutical products with large market potential to improve safety, efficacy, and patient compliance. Kos’ strategy also includes making measured investments in new chemical entity research through in-house and sponsored research, scientific in-licensing and general corporate development activities. The company currently markets Niaspan, Advicor, Azmacort, Cardizem LA, Teveten and Teveten HCT. Kos has a strong and growing research and development pipeline including proprietary drug delivery technologies in solid-dose, inhalation and aerosol metered-dose device administration to help fuel sustained, organic sales growth into the future.

About Abbott

Abbott is a global, broad-based health care company devoted to the discovery, development, manufacture and marketing of pharmaceuticals and medical products, including nutritionals, devices and diagnostics. The company employs 65,000 people and markets its products in more than 130 countries.

Abbott’s news releases and other information are available on the company’s Web site at www.abbott.com.

Additional Information

The tender offer described in this press release has not yet commenced, and this press release is neither an offer to purchase nor a solicitation of an offer to sell securities. At the time the tender offer is commenced, Abbott will file a tender offer statement with the U.S. Securities and Exchange Commission. Investors and Kos security holders are strongly advised to read the tender offer statement (including an offer to purchase, letter of transmittal and related tender offer documents) and the related solicitation/recommendation statement that will be filed by Kos with the SEC, because they will contain important information. These documents will be available at no charge on the SEC’s Web site at www.sec.gov.

Private Securities Litigation Reform Act of 1995 —
A Caution Concerning Forward-Looking Statements

Some statements in this news release may be forward-looking statements for purposes of the Private Securities Litigation Reform Act of 1995. Abbott and Kos Pharmaceuticals caution that these forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially from those indicated in the forward-looking statements including: the tender offer may not be completed or the merger may not be consummated for reasons including because conditions precedent to the completion of the acquisition may not be satisfied. Economic, competitive, governmental, technological and other factors that may affect Abbott’s operations are discussed in Item 1A, “Risk Factors,” and Exhibit 99.1 to our Annual Report on Securities and Exchange Commission Form 10-K for the year ended Dec. 31, 2005 and in Item 1A, “Risk Factors,” to our Quarterly Report on Securities and Exchange Commission Form 10-Q for the period ended March 31, 2006, and are incorporated by reference. For a description of factors that may affect Kos Pharmaceuticals’ future results, see discussion under “Risk Factors Affecting Operations and Future Results” in Kos Pharmaceuticals’ Form 10-Q for the quarter ended June 30, 2006, and periodic reports filed with the Securities and Exchange Commission. Abbott and Kos Pharmaceuticals undertake no obligation to release publicly any revisions to forward-looking statements as the result of subsequent events or developments.

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ABBOTT LABORATORIES

Date: November 9, 2006

/s/ Thomas C. Freyman

Name: Thomas C. Freyman

Title: Executive Vice President,
Finance & Chief Financial
Officer