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                                                                       EXHIBIT 1

                                                                  EXECUTION COPY

                                1,600,000 SHARES

                       INVERNESS MEDICAL INNOVATIONS, INC.

                             SHARES OF COMMON STOCK
                                ($.001 PAR VALUE)

                             UNDERWRITING AGREEMENT

                                                                    May 21, 2002


SG COWEN SECURITIES CORPORATION
   As Representative of the several Underwriters
1221 Avenue of the Americas
New York, New York 10020

Dear Sirs:

1. INTRODUCTORY. Inverness Medical Innovations, Inc., a Delaware corporation
(the "COMPANY"), proposes to sell, pursuant to the terms of this Agreement, to
the several underwriters named in SCHEDULE A hereto (the "UNDERWRITERS," or,
each, an "UNDERWRITER"), an aggregate of 1,600,000 shares of Common Stock, $.001
par value (the "COMMON STOCK"), of the Company. The aggregate of 1,600,000
shares so proposed to be sold is hereinafter referred to as the "FIRM STOCK".
The Company also proposes to sell to the Underwriters, upon the terms and
conditions set forth in Section 3 hereof, up to an additional 240,000 shares of
Common Stock (the "OPTIONAL Stock"). The Firm Stock and the Optional Stock are
hereinafter collectively referred to as the "STOCK". SG Cowen Securities
Corporation ("SG COWEN") is acting as representative of the several Underwriters
and in such capacity is hereinafter referred to as the "REPRESENTATIVE." Certain
terms used herein are defined in Section 14 hereof.

2. REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company and each of the
Material Subsidiaries (other than IVC Industries, Inc.) represents and warrants
to, and agrees with, the several Underwriters that:

         (a) A Registration Statement on Form S-3 (File No. 333-87180) (the
         "REGISTRATION STATEMENT") in respect of 5,000,000 shares of Common
         Stock, including the Stock, has been filed with the Securities and
         Exchange Commission (the "COMMISSION"). The Registration Statement
         (excluding exhibits thereto but including all documents incorporated by
         reference in the prospectus contained therein), delivered to you for
         you and each of the other Underwriters, has been declared effective by
         the Commission in such form. Except for documents incorporated by
         reference therein and the Preliminary Prospectus (as defined below), no
         other document relating to the Registration Statement has been filed
         with the Commission since effectiveness. No stop order suspending the
         effectiveness of the Registration Statement has been issued and, to the
         best of the Company's knowledge, no proceeding for that purpose has
         been initiated or threatened by the Commission. Any preliminary
         prospectus supplement filed with the Commission pursuant to Rule 424(b)
         of the Rules and Regulations, is hereinafter called a "PRELIMINARY
         PROSPECTUS". The term "REGISTRATION STATEMENT" includes various parts
         of the
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         Registration Statement, including all exhibits thereto and including
         (A) the information contained in the prospectus contained in the
         Registration Statement at the time such part of the Registration
         Statement became effective (the "BASE PROSPECTUS"), and (B) the
         documents incorporated by reference in the Base Prospectus, each as
         amended at the time such part of the Registration Statement became
         effective. The final prospectus supplement, in the form filed pursuant
         to Rule 424(b) under the Securities Act of 1933, as amended (the
         "SECURITIES ACT"), together with the Base Prospectus, is hereinafter
         collectively called the "PROSPECTUS". Any reference herein to any
         Preliminary Prospectus or the Prospectus shall be deemed to refer to
         and include the documents incorporated by reference therein pursuant to
         Item 12 of Form S-3 under the Securities Act, as of the date of such
         Preliminary Prospectus or Prospectus, as the case may be. Any reference
         to any amendment or supplement to any Preliminary Prospectus or the
         Prospectus shall be deemed to refer to and include any documents filed
         after the date of such Preliminary Prospectus or Prospectus, as the
         case may be, under the Securities Exchange Act of 1934, as amended (the
         "EXCHANGE ACT"), and incorporated by reference in such Preliminary
         Prospectus or Prospectus, as the case may be. No document has been or
         will be prepared or distributed in reliance on Rule 434 under the
         Securities Act. No order preventing or suspending the use of any
         Preliminary Prospectus has been issued by the Commission.

         (b) The Registration Statement conforms (and the Prospectus and any
         amendments or supplements to the Registration Statement or the
         Prospectus, when they become effective or are filed with the
         Commission, as the case may be, will conform) in all material respects
         to the requirements of the Securities Act and the rules and regulations
         (the "RULES AND REGULATIONS") of the Commission thereunder and do not
         and will not, as of the applicable effective date (as to the
         Registration Statement and any amendment thereto) and as of the
         applicable filing date (as to the Prospectus and any amendment 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 to make the statements therein not misleading; PROVIDED,
         HOWEVER, that the foregoing representations and warranties shall not
         apply to information contained in or omitted from the Registration
         Statement or the Prospectus or any such amendment or supplement thereto
         made in reliance upon, and in conformity with, written information
         furnished to the Company through the Representative by or on behalf of
         any Underwriter specifically for inclusion therein.

         (c) The documents incorporated by reference (or deemed to be
         incorporated by reference) in the Registration Statement and the
         Prospectus, when they became effective or were filed with the
         Commission, as the case may be, conformed in all material respects to
         the requirements of the Securities Act or the Exchange Act, as
         applicable, and the rules and regulations of the Commission thereunder,
         and, when read together with the other information included or
         incorporated by reference in the Prospectus, none of such documents
         contained any untrue statement of a material fact or omitted to state
         any material fact required to be stated therein or necessary to make
         the statements therein not misleading; and any further documents so
         filed and incorporated by reference in the Prospectus, when such
         documents become effective or are filed with Commission, as the case
         may be, will conform in all material respects to the requirements of
         the Securities Act or the Exchange Act, as applicable, and the rules
         and regulations of the Commission thereunder and, when read together
         with the other information included or incorporated by reference in the
         Prospectus, will not contain any untrue statement of a material fact or
         omit to state any material fact required to be stated therein or
         necessary to make the statements therein (in the case of the
         Prospectus, in light of the circumstances under which they were made)
         not misleading.


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         (d) The Company and each of its subsidiaries have been duly organized
         and are validly existing as corporations or other legal entities in
         good standing (or the foreign equivalent thereof, if any) under the
         laws of their respective jurisdictions of incorporation, are duly
         qualified to do business and are in good standing (or the foreign
         equivalent thereof, if any) as foreign corporations in each
         jurisdiction in which their respective ownership or lease of property
         or the conduct of their respective businesses requires such
         qualification, and have all power and authority necessary to own or
         hold their respective properties and to conduct the businesses in which
         they are engaged, except where the failure to be so qualified and in
         good standing or have the power or authority would not have a material
         adverse effect on the condition (financial or otherwise), earnings,
         business, properties or prospects of the Company and its Subsidiaries
         taken as a whole (a "MATERIAL ADVERSE EFFECT").

         (e) All the outstanding (issued in the case of Unipath Limited) shares
         of capital stock of each subsidiary of the Company have been duly
         authorized and validly issued, are fully paid and nonassessable and,
         except to the extent set forth in the Prospectus, are owned by the
         Company directly or indirectly through one or more wholly-owned
         subsidiaries, free and clear of any claim, lien, encumbrance, security
         interest, restriction upon voting or transfer or any other claim of any
         third party.

         (f) The Company's authorized capital stock is as set forth in the
         Prospectus; the capital stock of the Company conforms in all material
         respects to the description thereof contained in the Prospectus; all
         the outstanding shares of Common Stock have been duly and validly
         authorized and issued and are fully paid and nonassessable; the Stock
         to be issued and sold by the Company to the Underwriters hereunder has
         been duly and validly authorized, and, when issued and delivered
         against payment therefor by the Underwriters pursuant to this
         Agreement, will be fully paid and nonassessable; the Common Stock is
         listed on the American Stock Exchange and the Company has submitted a
         supplemental application for the listing of the Stock on the American
         Stock Exchange; the certificates for the Stock are in valid and
         sufficient form; the holders of outstanding shares of capital stock of
         the Company are not entitled to preemptive or other rights to subscribe
         for the Stock to be issued and sold by the Company to the Underwriters
         hereunder; and, except as set forth in the Prospectus, no options,
         warrants or other rights to purchase, agreements or other obligations
         to issue, or rights to convert any obligations into or exchange any
         securities for, shares of capital stock of or ownership interests in
         the Company are outstanding.

         (g) There is no franchise, contract, lease, instrument or other
         document of a character required to be described in the Registration
         Statement or Prospectus, or to be filed as an exhibit thereto pursuant
         to Item 601 of Regulation S-K, which is not described or filed as
         required in the Registration Statement or Prospectus or in the
         Company's annual report on Form 10-K for the year-ended December 31,
         2001, as amended, quarterly report on Form 10-Q for the quarter ended
         March 31, 2002 and/or current reports on Form 8-K, each as amended,
         which are incorporated by reference therein, and all statements
         summarizing any such franchises, contracts, leases, instruments or
         other documents or legal matters contained in the Registration
         Statements are accurate and complete descriptions thereof in all
         material respects.

         (h) The minute books of the Company and each of the Material
         Subsidiaries have been made available to the Underwriters and counsel
         for the Underwriters, and such books (i) contain an accurate summary in
         all material respects of all meetings and actions of the directors and
         stockholders of the Company and each of the Material Subsidiaries since
         the time of its incorporation through the date of the latest meeting
         and action, and (ii) accurately in all material respects reflect all
         transactions referred to in such minutes.


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         (i) The Company and each of the Material Subsidiaries has the full
         right, corporate power and authority to enter into this Agreement and
         to perform and to discharge its obligations hereunder and this
         Agreement has been duly authorized, executed and delivered by the
         Company and each of the Material Subsidiaries, and constitutes a valid
         and binding obligation of the Company and each of the Material
         Subsidiaries enforceable in accordance with its terms.

         (j) The Company is not and, after giving effect to the offering and
         sale of the Stock and the application of the proceeds thereof as
         described in the Prospectus, will not be an "INVESTMENT COMPANY" as
         defined in the Investment Company Act of 1940, as amended.

         (k) No consent, approval, authorization, filing with or order of any
         court or governmental agency or body is required in connection with the
         transactions contemplated herein, except such as have been obtained or
         made under the Securities Act or Exchange Act and such as may be
         required under the securities or blue sky laws of any jurisdiction in
         connection with the purchase and distribution of the Stock by the
         Underwriters in the manner contemplated herein and in the Prospectus.

         (l) Neither the issue and sale of the Stock nor the consummation of any
         other of the transactions contemplated by this Agreement nor the
         fulfillment of the terms hereof will conflict with, result in a breach
         or violation of or imposition of any lien, charge or encumbrance upon
         any property or assets of the Company or any of its subsidiaries
         pursuant to (i) the charter or by-laws (or equivalent documents) of the
         Company or any of its subsidiaries, (ii) the terms of any material
         indenture, contract, lease, mortgage, deed of trust, note agreement,
         loan agreement or other material agreement, obligation, condition,
         covenant or instrument to which the Company or any of its subsidiaries
         is a party or bound or to which its or their property is subject, or
         (iii) any statute, law, rule, regulation, judgment, order or decree
         applicable to the Company or any of its subsidiaries of any court,
         regulatory body, administrative agency, governmental body, arbitrator
         or other authority having jurisdiction over the Company, any of its
         subsidiaries or any of their respective properties which statute, law,
         rule, regulation, judgment, order or decree is material to the Company
         and the subsidiaries taken as a whole.

         (m) Except as described in the Prospectus, no person or entity has the
         right to require registration of shares of Common Stock or other
         securities of the Company because of the filing or effectiveness of the
         Registration Statement or otherwise, except for persons and entities
         who have expressly waived such right or who have been given proper
         notice and have failed to exercise such right within the time or times
         required under the terms and conditions of such right and, except for
         those holders of securities which are to be registered for resale on a
         certain registration statement on Form S-3 (No. 333-85658) filed on
         April 5, 2002 and amended on May 14, 2002, but which has not yet been
         declared effective, the Company is not required to file any
         registration statement for the registration of any securities of any
         person or register any such securities pursuant to any other
         registration statement filed by the Company under the Securities Act
         for a period of at least 90 days after the Effective Date.

         (n) The consolidated historical financial statements and schedules of
         the Company included, or incorporated by reference, in the Prospectus
         and the Registration Statement present fairly in all material respects
         the consolidated financial condition, results of operations and cash
         flows of the Company and its consolidated subsidiaries as of the dates
         and for the periods indicated, comply as to form with the applicable
         accounting requirements of the Securities Act and have been prepared in


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         conformity with generally accepted accounting principles applied on a
         consistent basis throughout the periods involved (except as otherwise
         noted therein). The selected financial data set forth under the
         caption, "Selected Consolidated Financial Data" in the Prospectus and
         the Registration Statement fairly present, on the basis stated in the
         Prospectus and the Registration Statement, in all material respects the
         information included therein.

         (o) Except as set forth in the Prospectus, no action, suit or
         proceeding by or before any court or governmental agency, authority or
         body or any arbitrator involving the Company or any of its subsidiaries
         or any of their property is pending or, to the knowledge of the
         Company, threatened that (i) might reasonably be expected to materially
         and adversely affect the performance of this Agreement or the
         consummation of the transactions contemplated hereby or (ii) could
         reasonably be expected to have a Material Adverse Effect, whether or
         not arising from transactions in the ordinary course of business.

         (p) Except as described in the Prospectus, the Company and its
         subsidiaries own or lease all properties necessary to the conduct of
         its operations as presently conducted in all material respects.

         (q) Neither the Company nor any of its subsidiaries is in violation or
         default of (i) any provision of its charter or bylaws (or equivalent
         documents), (ii) the terms of any indenture, contract, lease, mortgage,
         deed of trust, note agreement, loan agreement or other agreement,
         obligation, condition, covenant or instrument to which it is a party or
         bound or to which its property is subject, or (iii) any statute, law,
         rule, regulation, judgment, order or decree of any court, regulatory
         body, administrative agency, governmental body, arbitrator or other
         authority having jurisdiction over the Company, its subsidiaries or any
         of its properties, as applicable (including, without limitation, those
         administered by the Food and Drug Administration of the U.S. Department
         of Health and Human Services (the "FDA"), the Federal Trade Commission
         (the "FTC") or by any foreign, federal, state or local governmental or
         regulatory authority performing functions similar to those performed by
         the FDA or FTC), except, with respect to clauses (ii) and (iii), any
         violations or defaults which, singularly or in the aggregate, would not
         have a Material Adverse Effect.

         (r) Arthur Andersen LLP, who have certified certain consolidated
         financial statements of the Company and its consolidated subsidiaries
         and delivered their report with respect to the audited consolidated
         financial statements and schedules included in the Prospectus, are
         independent public accountants with respect to the Company within the
         meaning of the Securities Act and the Rules and Regulations.

         (s) There are no transfer taxes or other similar fees or charges under
         Federal law or the laws of any state, or any political subdivision
         thereof, required to be paid in connection with the execution and
         delivery of this Agreement or the issuance by the Company or sale by
         the Company of the Stock.

         (t) The Company and each of its subsidiaries has filed all foreign,
         federal, state and local tax returns that are required to be filed or
         has requested extensions thereof, except in any case in which the
         failure so to file would not have a Material Adverse Effect, whether or
         not arising from transactions in the ordinary course of business,
         except as set forth in the Prospectus, and has paid all taxes required
         to be paid by it and any other assessment, fine or penalty levied
         against it, to the extent that any of the foregoing is due and payable,
         except for any such assessment, fine or penalty that is currently being
         contested in good faith or as would not have a Material Adverse


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         Effect, whether or not arising from transactions in the ordinary course
         of business, except as set forth in the Prospectus.

         (u) No labor dispute with the employees of the Company or any of its
         subsidiaries exists or, to the Company's knowledge, is threatened or
         imminent, that could have a Material Adverse Effect, whether or not
         arising from transactions in the ordinary course of business, except as
         set forth in the Prospectus.

         (v) The Company and each of its subsidiaries carry, or are covered by,
         insurance issued by insurers of recognized financial responsibility in
         such amounts and covering such risks as is customary for companies
         engaged in similar businesses in similar industries with products in a
         similar stage of development.

         (w) Except as set forth in the Prospectus, the Company and each of its
         subsidiaries possesses such approvals, licenses, certificates,
         certifications, clearances, consents, exemptions, marks (including,
         without limitation, ISO9001/EN46001 certifications and the CE mark by
         the European Union under the Medical Devices Directive), notifications,
         orders, permits and other authorizations issued by the appropriate
         federal, state or foreign regulatory authorities (including, without
         limitation, the FDA, FTC and any other foreign, federal, state or local
         government or regulatory authorities performing functions similar to
         those performed by the FDA and the FTC) necessary to conduct its
         businesses as described in the Prospectus (collectively, "PERMITS"),
         except for such Permits which the failure to obtain would not have a
         Material Adverse Effect, and, except as described in the Prospectus, is
         in compliance with the terms and conditions of all such Permits, except
         where the failure to comply would not reasonably be expected to result
         in a Material Adverse Effect; except as set forth in the Prospectus,
         all of such Permits held by the Company and each of its subsidiaries
         are valid and in full force and effect except where the invalidity of
         such Permits or the failure of such Permits to be in full force and
         effect would not reasonably be expected to result in a Material Adverse
         Effect; except as set forth in the Prospectus, there is no pending or,
         to the knowledge of the Company, threatened action, suit, claim or
         proceeding which may cause any such Permit to be limited, revoked,
         cancelled, suspended, modified or not renewed and the Company has not
         received any notice of proceedings relating to the limitation,
         revocation, cancellation, suspension, modification or non-renewal of
         any such Permit which, singularly or in the aggregate, if the subject
         of an unfavorable decision, ruling or finding, would have a Material
         Adverse Effect, whether or not arising from transactions in the
         ordinary course of business.

         (x) The Company and each of its subsidiaries 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) transactions are recorded as
         necessary to permit preparation of financial statements in conformity
         with generally accepted accounting principles and to maintain asset
         accountability; (iii) access to assets is permitted only in accordance
         with management's general or specific authorization; and (iv) the
         recorded accountability for assets is compared with the existing assets
         at reasonable intervals and appropriate action is taken with respect to
         any differences.

         (y) Neither the Company nor, to the Company's knowledge, any of its
         officers, directors or affiliates has taken or will take, directly or
         indirectly, any action designed or intended to stabilize or manipulate
         the price of any security of the Company, or which caused or resulted
         in, or which might in the future reasonably be expected to cause or
         result in, stabilization or manipulation of the price of any security
         of the Company.


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         (z) Except as set forth in the Prospectus, the Company and each of its
         subsidiaries (i) are in compliance in all material respects with any
         and all applicable foreign, federal, state and local laws and
         regulations relating to the protection of human health and safety, the
         environment or hazardous or toxic substances or wastes, pollutants or
         contaminants ("ENVIRONMENTAL LAWS"), (ii) have received and are in
         compliance with all permits, licenses or other approvals required of
         them under applicable Environmental Laws to conduct their respective
         businesses and (iii) have not received notice of any actual or
         potential liability for the investigation or remediation of any
         disposal or release of hazardous or toxic substances or wastes,
         pollutants or contaminants, except where such non-compliance with
         Environmental Laws, failure to receive required permits, licenses or
         other approvals, or liability would not, individually or in the
         aggregate, have a Material Adverse Effect, whether or not arising from
         transactions in the ordinary course of business. Except as set forth in
         the Prospectus, the Company has not been named as a "potentially
         responsible party" under the Comprehensive Environmental Response,
         Compensation, and Liability Act of 1980, as amended.

         (aa) The Company and each of its U.S. subsidiaries has fulfilled its
         obligations, if any, under the minimum funding standards of Section 302
         of the United States Employee Retirement Income Security Act of 1974
         ("ERISA") and the regulations and published interpretations thereunder
         with respect to each "PLAN" (as defined in Section 3(3) of ERISA and
         such regulations and published interpretations) in which employees of
         the Company and such subsidiaries are eligible to participate and each
         such plan is in compliance in all material respects with the presently
         applicable provisions of ERISA and such regulations and published
         interpretations. Neither the Company nor any of its U.S. subsidiaries
         has incurred any unpaid liability to the Pension Benefit Guaranty
         Corporation (other than for the payment of premiums in the ordinary
         course) or to any such plan under Title IV of ERISA.

         (bb) Except as described in the Prospectus, the Company and its
         subsidiaries own, possess, license or have other rights to use all
         foreign and domestic patents, patent applications, trade and service
         marks, trade and service mark registrations, trade names, copyrights,
         licenses, inventions, trade secrets, technology, know-how and other
         intellectual property that are material to the conduct of the Company's
         and its subsidiaries' businesses, taken as a whole, as described in the
         Prospectus (collectively, the "INTELLECTUAL PROPERTY"). Except as set
         forth in the Prospectus (a) to the Company's knowledge, there are no
         rights of third parties to any such Intellectual Property which would
         reasonably be expected to have a Material Adverse Effect, and the
         Company is unaware of any facts which would form a reasonable basis for
         any such claim, (b) to the Company's knowledge, there is no
         infringement by third parties of any such Intellectual Property owned
         by the Company or its subsidiaries which infringement would reasonably
         be expected to have a Material Adverse Effect; (c) there is no pending
         or, to the Company's knowledge, threatened action, suit, proceeding or
         claim by others challenging the Company's rights in or to any such
         Intellectual Property which would reasonably be expected to have a
         Material Adverse Effect, and the Company is unaware of any facts which
         would form a reasonable basis for any such claim, (d) there is no
         pending or, to the Company's knowledge, threatened action, suit,
         proceeding or claim by others challenging the validity or scope of any
         such Intellectual Property which would reasonably be expected to have a
         Material Adverse Effect, and the Company is unaware of any facts which
         would form a reasonable basis for any such claim, and (e) there is no
         pending or, to the Company's knowledge, threatened action, suit,
         proceeding or claim by others that the Company infringes any patent,
         trademark, copyright, trade secret or other proprietary rights of
         others which would reasonably be expected to have a


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         Material Adverse Effect, and the Company is unaware of any facts which
         would form a reasonable basis for any such claim.

         (cc) In connection with the patent applications filed or caused to be
         filed by the Company and each of its subsidiaries with the United
         States Patent and Trademark Office and any applicable foreign
         equivalent thereof (herein called the "PTO"), (i) to the Company's
         knowledge, the Company and each of its subsidiaries has complied with
         the PTO's duty of candor and disclosure for each of its patents and
         patent applications; (ii) to the Company's knowledge, the Company and
         each of its subsidiaries has made no misrepresentation in any such
         application or in any application filed with any applicable foreign
         patent authorities; (iii) the Company is unaware of any facts material
         to a determination of patentability regarding the Company's or any of
         its subsidiary's patent applications not called to the attention of the
         PTO; (iv) the Company is unaware of any facts not called to the
         attention of the PTO which would preclude the grant of a patent for
         such applications; and (v) the Company has no knowledge of any facts
         which would conflict with the Company's or any subsidiary's ownership
         rights to its patent applications and patents; except where any such
         failure to comply, misrepresentation (if made), failure to call forth
         to the attention of the PTO, or conflicting facts could not reasonably
         be expected to have a Material Adverse Effect singly or in the
         aggregate.

         (dd) The Company has not failed to file with the applicable regulatory
         authorities (including, without limitation, the FDA, FTC or any
         foreign, federal, state or local governmental or regulatory authority
         performing functions similar to those performed by the FDA or FTC) any
         filing, declaration, listing, registration, report or submission, all
         such filings, declarations, listings, registrations, reports or
         submissions were in compliance with applicable laws when filed and no
         deficiencies have been asserted by any applicable regulatory authority
         (including, without limitation, the FDA, FTC or any foreign, federal,
         state or local governmental or regulatory authority performing
         functions similar to those performed by the FDA or FTC) with respect to
         any such filings, declarations, listings, registrations, reports or
         submissions, except where the failure to so file or where such
         non-compliance of any such filings, or where any such deficiency would
         not reasonably be expected to result, singularly or in the aggregate,
         in a Material Adverse Effect.

         (ee) No relationship, direct or indirect, exists between or among the
         Company on the one hand and the directors, officers, stockholders,
         customers or suppliers of the Company on the other hand which is
         required to be described in the Prospectus by the Securities Act or the
         Rules and Regulations and which is not therein described.

         (ff) No forward-looking statement (within the meaning of Section 27A of
         the Securities Act and Section 21E of the Exchange Act) contained in
         the Prospectus has been made or reaffirmed without a reasonable basis
         or has been disclosed other than in good faith.

         (gg) The Company is not a party to any contract, agreement or
         understanding with any person that would give rise to a valid claim
         against the Company or the Underwriters for a brokerage commission,
         finder's fee or like payment in connection with the offering and sale
         of the Stock.

         (hh) Neither the Company nor any of its subsidiaries has sustained,
         since the date of the latest audited financial statements included in
         the Prospectus, any material loss or interference with its business
         from fire, explosion, flood, terrorist act or other calamity, whether
         or not covered by insurance, or from any labor dispute or court or
         governmental action, order or decree, otherwise than as set forth in
         the Prospectus;


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         and since such date, other than as set forth in the Prospectus, there
         has not been any material change in the capital stock or long term debt
         (other than (i) option grants in the ordinary course of business
         consistent with past practice, exercises of outstanding stock options
         and warrants, or conversion of outstanding convertible securities and
         (ii) an increase in the capital stock of Inverness Medical Switzerland
         GmbH from CHF 20,000 to 150,000 in March 2002) of the Company or any of
         its subsidiaries or any material adverse change, or any development
         involving a prospective material adverse change, in or affecting the
         business, general affairs, management, financial position,
         stockholders' equity or results of operations of the Company or any and
         its subsidiaries, taken as a whole, otherwise than as set forth in the
         Prospectus.

         (ii) Except as described in the Registration Statement, the Company has
         not sold or issued any shares of Common Stock during the six-month
         period preceding the date of the Prospectus, including any sales
         pursuant to Rule 144A under, or Regulations D or S of, the Securities
         Act, other than shares issued pursuant to the Employee Stock Option
         Plan and the Employee Stock Purchase Plan that have been approved by
         the Company's Board of Directors, its compensation committee or any
         delegate thereof.

         (jj) Except as disclosed in the Prospectus, there are no business
         relationships or related-party transactions of the nature required to
         be disclosed in the Prospectus pursuant to Item 404 of Regulation S-K
         under the Securities Act.

         (kk) The Company meets the requirements for use of Form S-3 under the
         Securities Act and the Rules and Regulations.

         Any certificate signed by any officer of the Company and delivered to
the Representative or counsel for the Underwriters in connection with the
offering of the Stock shall be deemed a representation and warranty by the
Company, as to matters covered thereby, to each Underwriter.

3. PURCHASE SALE AND DELIVERY OF OFFERED STOCK. On the basis of the
representations, warranties and agreements herein contained, but subject to the
terms and conditions herein set forth, the Company agrees to sell to each
Underwriter, and each Underwriter agrees, severally and not jointly, to purchase
from the Company that number of shares of Firm Stock set forth opposite the name
of such Underwriter in SCHEDULE A hereto.

         The purchase price per share to be paid by the Underwriters to the
Company for the Stock will be $21.735 per share (the "PURCHASE PRICE").

         The Company will deliver the Firm Stock to the Representative for the
respective accounts of the several Underwriters (in the form of definitive
certificates, issued in such names and in such denominations as the
Representative may direct by notice in writing to the Company given at or prior
to 12:00 Noon, New York time, on the second full business day preceding the
First Closing Date (as defined below)) against payment of the aggregate Purchase
Price therefore by wire transfer to an account at a bank acceptable to SG Cowen,
payable to the order of the Company all at the offices of SG Cowen. Time shall
be of the essence, and delivery at the time and place specified pursuant to this
Agreement is a further condition of the obligations of each Underwriter
hereunder. The time and date of the delivery and closing shall be at 10:00 A.M.,
New York time, on May 28, 2002, in accordance with Rule 15c6-1 of the Exchange
Act. The time and date of such payment and delivery are herein referred to as
the "FIRST CLOSING DATE". The First Closing Date and the location of delivery
of, and the form of payment for, the Firm Stock may be varied by agreement
between the Company and SG Cowen.


                                       9
<Page>

         The Company shall make the certificates for the Stock available to the
Representative for examination on behalf of the Underwriters in New York, New
York at least twenty-four hours prior to the First Closing Date.

         For the purpose of covering any over-allotments in connection with the
distribution and sale of the Firm Stock as contemplated by the Prospectus, the
Underwriters may purchase all or less than all of the Optional Stock. The price
per share to be paid for the Optional Stock shall be the Purchase Price. The
Company agrees to sell to the Underwriters the number of shares of Optional
Stock specified in the written notice by SG Cowen described below and the
Underwriters agree, severally and not jointly, to purchase such shares of
Optional Stock. Such shares of Optional Stock shall be purchased from the
Company and shall be purchased for the account of each Underwriter in the same
proportion as the number of shares of Firm Stock set forth opposite such
Underwriter's name bears to the total number of shares of Firm Stock (subject to
adjustment by SG Cowen to eliminate fractions). The option granted hereby may be
exercised as to all or any part of the Optional Stock at any time, and from time
to time, not more than thirty (30) days subsequent to the date of this
Agreement. No Optional Stock shall be sold and delivered unless the Firm Stock
previously has been, or simultaneously is, sold and delivered. The right to
purchase the Optional Stock or any portion thereof may be surrendered and
terminated at any time upon notice by SG Cowen to the Company.

         The option granted hereby may be exercised by written notice being
given to the Company by SG Cowen setting forth the number of shares of the
Optional Stock to be purchased by the Underwriters and the date and time for
delivery of and payment for the Optional Stock. Each date and time for delivery
of and payment for the Optional Stock (which may be the First Closing Date, but
not earlier) is herein called the "OPTION CLOSING DATE" and shall in no event be
earlier than two (2) business days nor later than five (5) business days after
written notice is given. (The Option Closing Date and the First Closing Date are
herein called the "CLOSING DATES".)

         The Company will deliver the Optional Stock to the Underwriters (in the
form of definitive certificates, issued in such names and in such denominations
as the Representative may direct by notice in writing to the Company given at or
prior to 12:00 Noon, New York time, on the second full business day preceding
the Option Closing Date) against payment of the aggregate Purchase Price
therefor in federal (same day) funds by certified or official bank check or
checks or wire transfer to an account at a bank acceptable to SG Cowen payable
to the order of the Company all at the offices of SG Cowen. Time shall be of the
essence, and delivery at the time and place specified pursuant to this Agreement
is a further condition of the obligations of each Underwriter hereunder. The
Company shall make the certificates for the Optional Stock available to the
Representative for examination on behalf of the Underwriters in New York, New
York not later than 10:00 A.M., New York Time, on the business day preceding the
Option Closing Date. The Option Closing Date and the location of delivery of,
and the form of payment for, the Optional Stock may be varied by agreement
between the Company and SG Cowen.

         The several Underwriters propose to offer the Stock for sale upon the
terms and conditions set forth in the Prospectus.

4. FURTHER AGREEMENTS OF THE COMPANY. The Company agrees with the several
Underwriters that:

         (a) The Company will prepare the Prospectus in a form approved by the
         Representative and file such Prospectus pursuant to Rule 424(b) under
         the Securities Act not later than the second business day following the
         execution and delivery of this Agreement; make no further amendment or
         any supplement to the Registration


                                       10
<Page>

         Statement or to the Prospectus prior to the Option Closing Date to
         which the Representative shall reasonably object by notice to the
         Company after a reasonable period to review; advise the Representative,
         promptly after it receives notice thereof, of the time when any
         amendment to the Registration Statement has been filed or becomes
         effective or any supplement to the Prospectus or any amended Prospectus
         has been filed and to furnish the Representative with copies thereof;
         file promptly all reports and any definitive proxy or information
         statements required to be filed by the Company with the Commission
         pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act
         subsequent to the date of the Prospectus and for so long as the
         delivery of a prospectus is required in connection with the offering or
         sale of the Stock; advise the Representative, promptly after it
         receives notice thereof, of the issuance by the Commission of any stop
         order or of any order preventing or suspending the use of any
         Preliminary Prospectus or the Prospectus, of the suspension of the
         qualification of the Stock for offering or sale in any jurisdiction, of
         the initiation or threatening of any proceeding for any such purpose,
         or of any request by the Commission for the amending or supplementing
         of the Registration Statement or the Prospectus or for additional
         information; and, in the event of the issuance of any stop order or of
         any order preventing or suspending the use of any Preliminary
         Prospectus or the Prospectus or suspending any such qualification, use
         promptly its best efforts to obtain its withdrawal.

         (b) If at any time prior to the expiration of nine months after the
         date of the final prospectus supplement when a prospectus relating to
         the Stock is required to be delivered any event occurs as a result of
         which the Prospectus as then amended or supplemented would include any
         untrue statement of a material fact, or omit to state any material fact
         necessary to make the statements therein, in light of the circumstances
         under which they were made, not misleading, or if it is necessary at
         any time to amend the Prospectus or to file under the Exchange Act any
         document incorporated by reference in the Prospectus to comply with the
         Securities Act or the Exchange Act, the Company will promptly notify
         the Representative thereof and upon their request will prepare an
         amended or supplemented Prospectus or make an appropriate filing
         pursuant to Section 13 or 14 of the Exchange Act which will correct
         such statement or omission or effect such compliance. The Company will
         furnish without charge to each Underwriter and to any dealer in
         securities as many copies as the Representative may from time to time
         reasonably request of such amended or supplemented Prospectus; and in
         case any Underwriter is required to deliver a prospectus relating to
         the Stock nine months or more after the date of the final prospectus
         supplement, the Company upon the request of the Representative and at
         the expense of such Underwriter will prepare promptly an amended or
         supplemented Prospectus as may be necessary to permit compliance with
         the requirements of Section 10(a)(3) of the Securities Act.

         (c) The Company will furnish promptly to the Representative and to
         counsel for the Underwriters a signed copy of the Registration
         Statement as originally filed with the Commission, and each amendment
         thereto filed with the Commission, including all consents and exhibits
         filed therewith.

         (d) The Company will deliver promptly to the Representative in New York
         City such number of the following documents as the Representative shall
         reasonably request: (i) conformed copies of the Registration Statement
         as originally filed with the Commission and each amendment thereto (in
         each case excluding exhibits), (ii) each Preliminary Prospectus, (iii)
         the Prospectus (not later than 10:00 A.M., New York time, of the
         business day following the execution and delivery of this Agreement)
         and any amended or supplemented Prospectus (not later than 10:00 A.M.,
         New York City time, on the business day following the date of such
         amendment or


                                       11
<Page>

         supplement), and (iv) any document incorporated by reference in the
         Prospectus (excluding exhibits thereto).

         (e) The Company will make generally available to its stockholders as
         soon as practicable, but in any event not later than eighteen months
         after the date of the Registration Statement (as defined in Rule 158(c)
         under the Securities Act), an earnings statement of the Company and its
         subsidiaries (which need not be audited) complying with Section 11(a)
         of the Securities Act and the Rules and Regulations (including, at the
         option of the Company, Rule 158).

         (f) The Company will promptly take from time to time such actions as
         the Representative may reasonably request to qualify the Stock for
         offering and sale under the securities or blue sky laws of such
         jurisdictions as the Representative may designate and to continue such
         qualifications in effect for so long as required for the distribution
         of the Stock; PROVIDED that the Company and its subsidiaries shall not
         be obligated to qualify as foreign corporations in any jurisdiction in
         which it is not so qualified or to file a general consent to service of
         process in any jurisdiction.

         (g) During the period of five years from the date hereof, the Company
         will deliver to the Representative and, upon request, to each of the
         other Underwriters, (i) as soon as they are available, copies of all
         reports or other communications furnished to stockholders and (ii) as
         soon as they are available, copies of any reports and financial
         statements furnished or filed by the Company with the Commission
         pursuant to the Exchange Act or any national securities exchange or
         automatic quotation system on which the Stock is listed or quoted, in
         each case other than such documents as are available on the internet
         (E.G., at www.sec.gov).

         (h) The Company will not directly or indirectly offer, sell, assign,
         transfer, pledge, contract to sell, or otherwise dispose of any shares
         of Common Stock or securities convertible into or exercisable or
         exchangeable for Common Stock for a period of 90 days from the date of
         the Prospectus without the prior written consent of SG Cowen other than
         (i) the Company's sale of the Stock hereunder, (ii) the issuance of
         shares pursuant to, or upon exercise of options received pursuant to
         stock option and employee stock purchase plans described in the
         Registration Statement, (iii) the issuance of shares under currently
         outstanding options, warrants or rights, (iv) the issuance of shares
         upon conversion of currently issued and outstanding convertible
         securities described in the Registration Statement, (v) the issuance of
         up to 500,000 shares in connection with the acquisition (by merger or
         otherwise) of a business, product line or technology or the entering
         into of a strategic alliance by the Company and/or its subsidiaries,
         provided, that, in connection with any issuance contemplated by Section
         4(h)(v) of this Agreement, the recipients of such shares agree that all
         such shares remain subject to restrictions substantially similar to
         those contained in this Section 4(h) through the ninetieth day after
         the date of the Prospectus. The Company will cause each officer and
         director listed in SCHEDULE B to furnish to the Representative, prior
         to the First Closing Date, a letter, substantially in the form of
         EXHIBIT I hereto, pursuant to which each such person shall agree to the
         matters set forth therein.

         (i) The Company will supply the Representative with copies of all
         correspondence to and from, and all documents issued to and by, the
         Commission in connection with the registration of the Stock under the
         Securities Act.

         (j) Prior to each of the Closing Dates, the Company will furnish to the
         Representative, as soon as they have been prepared, copies of any
         unaudited interim consolidated financial statements of the Company for
         any quarterly periods


                                       12
<Page>

         subsequent to the quarterly periods covered by the financial statements
         appearing in the Registration Statement and the Prospectus.

         (k) Prior to each of the Closing Dates, the Company will not issue any
         press release or other communication directly or indirectly or hold any
         press conference with respect to the Company, its condition, financial
         or otherwise, or earnings, business affairs or business prospects
         (except for routine oral marketing communications in the ordinary
         course of business and consistent with the past practices of the
         Company and of which the Representative is notified), without the prior
         written consent of the Representative, unless in the judgment of the
         Company and its counsel, and after notification to the Representative,
         such press release or communication is required by law.

         (l) In connection with the offering of the Stock, until SG Cowen shall
         have notified the Company of the completion of the resale of the Stock,
         the Company will not, and will use its best efforts to cause its
         affiliated purchasers (as defined in Regulation M under the Exchange
         Act) not to, either alone or with one or more other persons, bid for or
         purchase, for any account in which it or any of its affiliated
         purchasers has a beneficial interest, any Stock, or attempt to induce
         any person to purchase any Stock, except in compliance with Regulation
         M; and not to, and to cause its affiliated purchasers not to, make bids
         or purchase for the purpose of creating actual, or apparent, active
         trading in or of raising the price of the Stock.

         (m) The Company will not take any action prior to the Option Closing
         Date which would require the Prospectus to be amended or supplemented
         pursuant to Section 4(b).

         (n) The Company will apply the net proceeds from the sale of the Stock
         as set forth in the Prospectus under the heading "Use of Proceeds".

5. PAYMENT OF EXPENSES. The Company agrees with the Underwriters to pay (a) the
costs incident to the authorization, issuance, sale, preparation and delivery of
the Stock and any taxes payable in that connection; (b) the costs incident to
the Registration of the Stock under the Securities Act; (c) the costs incident
to the preparation, printing and distribution of the Registration Statement,
Preliminary Prospectus, Prospectus and any amendments and exhibits thereto or
any document incorporated by reference therein, the costs of printing,
reproducing and distributing the "Agreement Among Underwriters" between the
Representative and the Underwriters, the Master Selected Dealers' Agreement, the
Underwriters' Questionnaire and this Agreement by mail, telex or other means of
communication; (d) the fees and expenses (including related fees and expenses of
counsel for the Underwriters) incurred in connection with filings made with the
National Association of Securities Dealers; (e) any applicable listing or other
fees; (f) the fees and expenses of qualifying the Stock under the securities
laws of the several jurisdictions as provided in Section 4(f) and of preparing,
printing and distributing Blue Sky Memoranda and Legal Investment Surveys
(including related fees and expenses of counsel to the Underwriters); (g) all
fees and expenses of the registrar and transfer agent of the Stock; and (h) all
other costs and expenses incident to the performance of the obligations of the
Company under this Agreement (including, without limitation, the fees and
expenses of the Company's counsel and the Company's independent accountants);
PROVIDED that, except as otherwise provided in this Section 5 and in Section 10,
the Underwriters shall pay their own costs and expenses, including the fees and
expenses of their counsel.

6. CONDITIONS TO THE OBLIGATIONS OF THE UNDERWRITERS. The obligations of the
Underwriters to purchase the Firm Stock and the Optional Stock, as the case may
be, are subject to the accuracy, when made and on each of the Closing Dates, of
the representations


                                       13
<Page>

and warranties on the part of the Company contained herein, to the accuracy of
the statements of the Company made in any certificates pursuant to the
provisions hereof, to the performance by the Company of its obligations
hereunder and to the following additional conditions:

         (a) No stop order suspending the effectiveness of the Registration
         Statements shall have been issued and no proceedings for that purpose
         shall have been instituted or threatened by the Commission.

         (b) None of the Underwriters shall have discovered and disclosed to the
         Company on or prior to the Closing Date that the Registration Statement
         or the Prospectus or any amendment or supplement thereto contains an
         untrue statement of a fact which, in the opinion of counsel for the
         Underwriters, is material or omits to state any fact which, in the
         opinion of such counsel, is material and is required to be stated
         therein or is necessary to make the statements therein not misleading.

         (c) All corporate proceedings and other legal matters incident to the
         authorization, form and validity of each of this Agreement, the Stock,
         the Registration Statement and the Prospectus and all other legal
         matters relating to this Agreement and the transactions contemplated
         hereby shall be reasonably satisfactory in all material respects to
         counsel for the Underwriters, and the Company shall have furnished to
         such counsel all documents and information that they may reasonably
         request to enable them to pass upon such matters.

         (d) The Company shall have requested and caused Goodwin Procter LLP,
         counsel for the Company, to have furnished to the Representative their
         opinion, dated the Closing Date and addressed to the Representative, to
         the effect that:

                           (i) the Company has been duly incorporated and is
                  validly existing as a corporation in good standing under the
                  laws of the State of Delaware, is duly qualified to do
                  business and is in good standing as a foreign corporation in
                  the Commonwealth of Massachusetts, and has the corporate power
                  and authority to own or hold its properties and to conduct its
                  business as described in the Prospectus, except where the
                  failure to have such power or authority would not have,
                  singularly or in the aggregate, a Material Adverse Effect.

                           (ii) the Company's authorized Capital Stock is as set
                  forth in the Prospectus under the caption "Capitalization";
                  the capital stock of the Company conforms in all material
                  respects to the description thereof contained in the
                  Prospectus; the Stock has been duly and validly authorized,
                  and, when issued and delivered against payment therefor by the
                  Underwriters pursuant to this Agreement, will be fully paid
                  and nonassessable; the holders of outstanding shares of
                  capital stock of the Company are not entitled to preemptive or
                  other rights to subscribe for the Stock under the charter or
                  the bylaws of the Company or any Material Agreement.

                           (iii) the Registration Statement has become effective
                  under the Securities Act; any required filing of the
                  Prospectus pursuant to Rule 424(b) has been made in the manner
                  and within the time period required by Rule 424(b); to the
                  knowledge of such counsel (based solely on an oral
                  representation of a member of the Commission's staff obtained
                  on May 28, 2002), no stop order suspending the effectiveness
                  of the Registration Statement has been issued and no
                  proceedings for that purpose have been instituted or
                  threatened by the Commission;


                                       14
<Page>

                           (iv) this Agreement has been duly authorized,
                  executed and delivered by the Company;

                           (v) the Company is not and, after giving effect to
                  the offering and sale of the Stock and the application of the
                  proceeds thereof as described in the Prospectus, will not be,
                  an "investment company" as defined in the Investment Company
                  Act of 1940, as amended;

                           (vi) to the knowledge of such counsel, no consent,
                  approval, authorization, filing with or order of any federal
                  or Massachusetts court or governmental agency or body is
                  required to be obtained by the Company in connection with the
                  issuance and sale of the Stock by the Company pursuant to the
                  Underwriting Agreement, except such as have been obtained
                  under the Securities Act and the Rules and Regulations and
                  such as may be required under the Exchange Act or the
                  securities or blue sky laws of any jurisdiction in connection
                  with the purchase and distribution of the Stock by the
                  Underwriters in the manner contemplated by this Agreement and
                  in the Prospectus and such other approvals (specified in such
                  opinion) as have been obtained;

                           (vii) neither the issue and sale of the Stock, nor
                  the execution, delivery and performance of any other of the
                  transactions herein contemplated nor the fulfillment of the
                  terms hereof will conflict with, result in a breach or
                  violation of, or the imposition of any lien, charge or
                  encumbrance upon any property or assets of the Company
                  pursuant to (a) the charter or bylaws of the Company, (b) the
                  terms of any Material Agreement, (c) the Delaware General
                  Corporation Law or any other applicable federal or
                  Massachusetts statute, law, rule, regulation, judgment, order
                  or decree known by such counsel to be applicable to the
                  Company (other than federal or state securities laws, which
                  are specifically addressed elsewhere herein), other than any
                  such breach or violation that would not reasonably be expected
                  to, singularly or in the aggregate, have a Material Adverse
                  Effect;

                           (viii) to the knowledge of such counsel after
                  reasonable inquiry, no holders of securities of the Company
                  have rights to the registration of such securities under the
                  Registration Statement, except for such holders who have
                  expressly waived such rights;

                           (ix) The statements in the Prospectus under the
                  heading "Description of Capital Stock", to the extent that
                  they constitute summaries of matters of law or regulation or
                  legal conclusions, have been reviewed by such counsel and
                  accurately summarize the matters described therein in all
                  material respects;

                           (x) The Registration Statement, as of its effective
                  date, and the Prospectus, as of its date, and any further
                  amendments or supplements thereto, as of their respective
                  dates, made by the Company prior to the Closing Date (other
                  than the financial statements, notes thereto, schedules and
                  other financial or statistical data included or incorporated
                  by reference therein or omitted therefrom, as to which such
                  counsel need express no opinion) complied as to form in all
                  material respects with the requirements of the Securities Act
                  and the Rules and Regulations, and the documents incorporated
                  by reference in the Prospectus and any further amendment to
                  any such incorporated document made by the Company prior to
                  the Closing Date (other than the financial statements, notes
                  thereto, schedules and other


                                       15
<Page>

                  financial or statistical data included or incorporated by
                  reference therein or omitted therefrom, as to which such
                  counsel need express no opinion), when they were filed with
                  the Commission complied as to form in all material respects
                  with the requirements of the Securities Act or the Exchange
                  Act, as applicable, and the rules and regulations of the
                  Commission thereunder; it being understood that, in passing
                  upon compliance as to the form of the Registration Statement
                  and the Prospectus, such counsel may assume that the
                  statements made and incorporated by reference therein are
                  correct and complete.

Such opinion shall also include a statement to the effect that:

         The limitations inherent in the independent verification of factual
matters and the character of determinations involved in the registration process
under the Securities Act are such that such counsel is not passing upon and does
not assume any responsibility for the accuracy, completeness or fairness of the
statements contained in the Registration Statement or the Prospectus, and such
counsel makes no representation that such counsel has independently verified the
accuracy, completeness or fairness of such statements. Without limiting the
foregoing, such counsel assumes no responsibility for, and has not independently
verified, the accuracy, completeness or fairness of the financial statements or
notes thereto, financial schedules and other financial and statistical data
included or incorporated by reference in the Registration Statement and the
Prospectus, and such counsel has not examined the accounting, financial or
statistical records from which such statements and notes, schedules and data are
derived. However, in the course of such counsel's acting as counsel to the
Company in connection with the public offering of the Stock, such counsel
participated in conferences with officers and representatives of the Company,
the independent accountants of the Company, counsel to the Company,
representatives of the Underwriters and counsel to the Underwriters during which
conferences the contents of the Registration Statement and the Prospectus and
related matters were discussed.

         Based on such counsel's participation in the above-mentioned
conferences, such counsel's review of the documents described in such opinion,
such counsel's understanding of applicable law and the experience such counsel
has gained in its practice thereunder, such counsel advises the Representative
that no facts have come to its attention which causes it to believe that (i) the
Registration Statement (except for financial statements and notes thereto,
schedules and other financial or statistical data included or incorporated by
reference therein or omitted therefrom, as to which such counsel makes no
statement), as of the time it became effective under the Securities Act,
contained an untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading, or (ii) the Prospectus (except for financial statements and
notes thereto, schedules and other financial or statistical data included or
incorporated by reference therein or omitted therefrom, as to which such counsel
makes no statement), as of its date, contained an untrue statement of a material
fact or omitted to state a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading.

         (e) General Counsel of the Company shall have furnished to the
         Representative such counsel's written opinion, addressed to the
         Representative and dated the Closing Date, to the effect that, to his
         knowledge:

                           (i) there is no pending or threatened legal action,
                  suit or proceeding by or before any court or governmental
                  agency, authority or body or any arbitrator involving the
                  Company or any of the Material Subsidiaries or its or their
                  property of a character required to be disclosed in the
                  Registration Statement or Prospectus which is not disclosed in
                  the Prospectus


                                       16
<Page>

                  or would prevent or adversely affect the ability of the
                  Company to perform its obligations under this Agreement; and
                  there is no franchise, contract or other document of a
                  character required to be described in the Registration
                  Statement or Prospectus, or to be filed as an exhibit to the
                  Registration Statement or incorporated by reference therein,
                  which is not described or filed or incorporated by reference
                  as required;

                  (f) Foley Hoag & Eliot LLP shall have furnished to the
         Representative such counsel's written opinion with respect to the
         Company's U.S. Material Subsidiaries, as counsel to the Company,
         addressed to the Representative and dated the Closing Date,
         substantially in form and substance as previously agreed between Foley
         Hoag LLP and Brown Raysman Millstein Felder & Steiner LLP, counsel to
         the Underwriters ("BROWN RAYSMAN").

                  (g) Allen & Overy shall have furnished to the Representative
         such counsel's written opinion, as counsel to Unipath Limited,
         addressed to the Representative and dated the Closing Date,
         substantially in form and substance as previously agreed between Allen
         & Overy and Brown Raysman.

                  (h) Mason Hayes & Curran shall have furnished to the
         Representative such counsel's written opinion, as counsel to Cambridge
         Diagnostic Ireland Limited, addressed to the Representative and dated
         the Closing Date, substantially in form and substance as previously
         agreed between Mason Hayes & Curran and Brown Raysman.

                  (i) Lanter, Trachsler, Roth and Partners shall have furnished
         to the Representative such counsel's written opinion, as counsel
         Inverness Medical Switzerland GmbH, addressed to the Representative and
         dated the Closing Date, substantially in form and substance as
         previously agreed between Lanter, Trachsler, Roth and Partners and
         Brown.

                  (j) Oppedahl & Larson LLP shall have furnished to the
         Representative such counsel's written opinion, as United States patent
         counsel to the Company, addressed to the Representative and dated the
         Closing Date, substantially in form and substance as previously agreed
         between Oppedahl & Larson LLP and Brown Raysman.

                  (k) The Representative shall have received from Brown Raysman,
         counsel for the Underwriters, such opinion or opinions, dated the
         Closing Date and addressed to the Representative, with respect to the
         issuance and sale of the Stock, the Registration Statement, the
         Prospectus (together with any supplement thereto) and other related
         matters as the Representative may reasonably require, and the Company
         shall have furnished to such counsel such documents as they request for
         the purpose of enabling them to pass upon such matters.

                  (l) The Company shall have furnished to the Representative a
         certificate, dated the Closing Date, of its Chairman of the Board,
         Chief Executive Officer and President and its Vice President, Finance
         and Treasurer stating that such officers have carefully examined the
         Registration Statement and the Prospectus and certifying, in their
         capacities as officers of the Company, that (i) the Registration
         Statement as of its effective date and the Prospectus, as of its date,
         did not include any untrue statement of a material fact and did not
         omit to state a material fact required to be stated therein or
         necessary to make the statements therein (in the case of the
         Prospectus, in light of the circumstances under which they were made)
         not misleading, (ii) since the effective date of the Registration
         Statement no event has


                                       17
<Page>

         occurred which should have been set forth in a supplement or amendment
         to the Registration Statements or the Prospectus which was not so set
         forth or set forth in a document incorporated by reference therein,
         (iii) the representations and warranties of the Company in this
         Agreement are true and correct and the Company has complied in all
         material respects with all agreements and satisfied in all material
         respects all conditions on its part to be performed or satisfied
         hereunder at or prior to the Closing Date, and (iv) subsequent to the
         date of the most recent financial statements included or incorporated
         by reference in the Prospectus, there has been no material adverse
         change in the financial position or results of operation of the Company
         and its subsidiaries, taken as a whole, or any material adverse change,
         or any development including a prospective material adverse change, in
         or affecting the condition (financial or otherwise), results of
         operations, business or prospects of the Company and its subsidiaries,
         taken as a whole, except as set forth in the Prospectus.

                  (m) At the time of the execution of this Agreement, the
         Representative shall have received from Arthur Andersen LLP a letter,
         addressed to the Underwriters and dated such date, in form and
         substance satisfactory to the Representative (i) confirming that they
         are independent certified public accountants with respect to the
         Company within the meaning of the Securities Act and the Rules and
         Regulations and (ii) stating the conclusions and findings of such firm
         with respect to the financial statements and certain financial
         information contained or incorporated by reference in the Prospectus.

                  (n) On the Closing Date, the Representative shall have
         received a letter (the "BRING-DOWN LETTER") from Arthur Andersen LLP
         addressed to the Underwriters and dated the Closing Date confirming, as
         of the date of the bring-down letter (or, with respect to matters
         involving changes or developments since the respective dates as of
         which specified financial information is given in the Prospectus as of
         a date not more than three business days prior to the date of the
         bring-down letter), the conclusions and findings of such firm with
         respect to the financial information and other matters covered by its
         letter delivered to the Representative concurrently with the execution
         of this Agreement pursuant to Section 6(i).

                  (o) (i) Neither the Company nor any of its subsidiaries shall
         have sustained, since the date of the latest audited financial
         statements included or incorporated by reference in the Prospectus any
         loss or interference of its business from fire, explosion, flood,
         terrorist act or other calamity, whether or not covered by insurance,
         or from any labor dispute or court or governmental action, order or
         decree, otherwise than as set forth in the Prospectus; and (ii) since
         such date there shall not have been any change in the capital stock or
         long term debt (other than option grants in the ordinary course of
         business consistent with past practice, exercises of outstanding stock
         options and warrants or conversion of outstanding convertible
         securities) of the Company or any of its subsidiaries or any change, or
         any development involving a prospective change, in or affecting the
         business, general affairs, management, financial position,
         stockholders' equity or results of operations of the Company or any of
         its subsidiaries, otherwise, in each of subclauses (i) and (ii) than as
         set forth in the Prospectus, the effect of which, in any such case
         described in clause (i) or (ii), is, in the judgment of the
         Representative, so material and adverse as to make it impracticable or
         inadvisable to proceed with the sale or delivery of the Stock on the
         terms and in the manner contemplated by the Prospectus.

                  (p) Prior to the Closing Date, the Company shall have
         furnished to the Representative such further information, certificates
         and documents as the Representative may reasonably request.


                                       18
<Page>

                  (q) The Stock shall have been listed and admitted and
         authorized for trading on the American Stock Exchange, and satisfactory
         evidence of such actions shall have been provided to the
         Representative.

                  (r) At the Execution Time, the Company shall have furnished to
         the Representative a letter addressed to the Representative
         substantially in the form of Exhibit I hereto from each officer and
         director of the Company identified in Schedule B hereto.

                  (s) Subsequent to the execution and delivery of this
         Agreement, there shall not have occurred any of the following: (i)
         trading in securities generally on the New York Stock Exchange, the
         Nasdaq National Market or the American Stock Exchange or in the
         over-the-counter market, or trading in any securities of the Company on
         any exchange or in the over-the-counter market, shall have been
         suspended or minimum or maximum prices or maximum ranges for prices
         shall have been established on any such exchange or such market by the
         Commission, by such exchange or by any other regulatory body or
         governmental authority having jurisdiction, (ii) a banking moratorium
         shall have been declared by Federal or state authorities or a material
         disruption has occurred in commercial banking or securities settlement
         or clearance services in the United States, (iii) the United States
         shall have become engaged in hostilities, or the subject of an act of
         terrorism, there shall have been an escalation in hostilities involving
         the United States or there shall have been a declaration of a national
         emergency or war by the United States or (iv) there shall have occurred
         such a material adverse change in general economic, political or
         financial conditions (or the effect of international conditions on the
         financial markets in the United States shall be such), as to make it,
         in the judgment of the Representative, impracticable or inadvisable to
         proceed with the sale or delivery of the Stock on the terms and in the
         manner contemplated by the Prospectus.

                  (t) No action shall have been taken and no statute, rule,
         regulation or order shall have been enacted, adopted or issued by any
         governmental agency or body which would, as of the Closing Date,
         prevent the issuance or sale of the Stock; and no injunction,
         restraining order or order of any other nature by any federal or state
         court of competent jurisdiction shall have been issued as of the
         Closing Date which would prevent the issuance or sale of the Stock.

         All opinions, letters, evidence and certificates mentioned above or
elsewhere in this Agreement shall be deemed to be in compliance with the
provisions hereof only if they are in form and substance reasonably satisfactory
to counsel for the Underwriters.

7.       INDEMNIFICATION AND CONTRIBUTION.

         (a) The Company and each Material Subsidiary (other than IVC
         Industries, Inc.) shall indemnify and hold harmless each Underwriter,
         its officers, employees, representatives and agents and each person, if
         any, who controls any Underwriter within the meaning of the Securities
         Act (collectively the "UNDERWRITER INDEMNIFIED PARTIES" and each an
         "UNDERWRITER INDEMNIFIED PARTY") against any loss, claim, damage or
         liability, joint or several, or any action in respect thereof, to which
         that Underwriter Indemnified Party may become subject, under the
         Securities Act or otherwise, insofar as such loss, claim, damage,
         liability or action arises out of or is based upon (i) any untrue
         statement or alleged untrue statement of a material fact contained in
         the Preliminary Prospectus, the Registration Statement or the
         Prospectus or in any amendment or supplement thereto or (ii) the
         omission or alleged omission to state in any Preliminary Prospectus,
         the Registration Statement or the Prospectus or in any amendment or
         supplement thereto a material fact required to be stated therein or


                                       19
<Page>

         necessary to make the statements therein not misleading and shall
         reimburse each Underwriter Indemnified Party promptly upon demand for
         any legal or other expenses reasonably incurred by that Underwriter
         Indemnified Party in connection with investigating or preparing to
         defend or defending against or appearing as a third party witness in
         connection with any such loss, claim, damage, liability or action as
         such expenses are incurred; PROVIDED, HOWEVER, that the Company and
         each Material Subsidiary shall not be liable in any such case to the
         extent that any such loss, claim, damage, liability or action arises
         out of or is based upon (i) an untrue statement or alleged untrue
         statement in or omission or alleged omission from the Preliminary
         Prospectus, the Registration Statement or the Prospectus or any such
         amendment or supplement in reliance upon and in conformity with written
         information furnished to the Company through the Representative by or
         on behalf of any Underwriter specifically for use therein, which
         information the parties hereto agree is limited to the Underwriter's
         Information (as defined in Section 16); PROVIDED, HOWEVER, that the
         foregoing indemnification agreement with respect to the Preliminary
         Prospectus shall not inure to the benefit of any Underwriter from whom
         the person asserting any such loss, claim, damage or liability
         purchased securities, or any officers, employees, representatives,
         agents or controlling persons of such Underwriter, if (i) a copy of the
         Prospectus (as then amended or supplemented) was required by law to be
         delivered to such person at or prior to the written confirmation of the
         sale of securities to such person, (ii) a copy of the Prospectus (as
         then amended or supplemented), excluding documents incorporated by
         reference therein, was not sent or given to such person by or on behalf
         of such Underwriter and such failure was not due to non-compliance by
         the Company with Section 4(d), and (iii) the Prospectus (as so amended
         or supplemented) would have cured the defect giving rise to such loss,
         claim, damage or liability. This indemnity agreement is not exclusive
         and will be in addition to any liability which the Company and each
         Material Subsidiary might otherwise have and shall not limit any rights
         or remedies which may otherwise be available at law or in equity to
         each Underwriter Indemnified Party.

         (b) Each Underwriter, severally and not jointly, shall indemnify and
         hold harmless the Company its officers, employees, representatives and
         agents, each of its directors and each person, if any, who controls the
         Company within the meaning of the Securities Act (collectively the
         "COMPANY INDEMNIFIED PARTIES" and each a "COMPANY INDEMNIFIED PARTY")
         against any loss, claim, damage or liability, joint or several, or any
         action in respect thereof, to which the Company Indemnified Parties may
         become subject, under the Securities Act or otherwise, insofar as such
         loss, claim, damage, liability or action arises out of or is based upon
         (i) any untrue statement or alleged untrue statement of a material fact
         contained in the Preliminary Prospectus, the Registration Statement or
         the Prospectus or in any amendment or supplement thereto or (ii) the
         omission or alleged omission to state therein a material fact required
         to be stated therein or necessary to make the statements therein not
         misleading, but in each case only to the extent that the untrue
         statement or alleged untrue statement or omission or alleged omission
         was made in reliance upon and in conformity with written information
         furnished to the Company through the Representative by or on behalf of
         that Underwriter specifically for use therein, and shall reimburse the
         Company Indemnified Parties for any legal or other expenses reasonably
         incurred by such parties in connection with investigating or preparing
         to defend or defending against or appearing as third party witness in
         connection with any such loss, claim, damage, liability or action as
         such expenses are incurred; PROVIDED that the parties hereto hereby
         agree that such written information provided by the Underwriters
         consists solely of the Underwriter's Information. This indemnity
         agreement is not exclusive and will be in addition to any liability
         which the Underwriters might otherwise have and shall not limit any
         rights or remedies which may otherwise be available at law or in equity
         to the Company Indemnified Parties.


                                       20
<Page>

         (c) Promptly after receipt by an indemnified party under this Section 7
         of notice of any claim or the commencement of any action, the
         indemnified party shall, if a claim in respect thereof is to be made
         against the indemnifying party under this Section 7, notify the
         indemnifying party in writing of the claim or the commencement of that
         action; PROVIDED, HOWEVER, that the failure to notify the indemnifying
         party shall not relieve it from any liability which it may have under
         this Section 7 except to the extent it has been materially prejudiced
         by such failure; and, PROVIDED, FURTHER, that the failure to notify the
         indemnifying party shall not relieve it from any liability which it may
         have to an indemnified party otherwise than under this Section 7. If
         any such claim or action shall be brought against an indemnified party,
         and it shall notify the indemnifying party thereof, the indemnifying
         party shall be entitled to participate therein and, to the extent that
         it wishes, jointly with any other similarly notified indemnifying
         party, to assume the defense thereof with counsel reasonably
         satisfactory to the indemnified party. After notice from the
         indemnifying party to the indemnified party of its election to assume
         the defense of such claim or action, the indemnifying party shall not
         be liable to the indemnified party under this Section 7 for any legal
         or other expenses subsequently incurred by the indemnified party in
         connection with the defense thereof other than reasonable costs of
         investigation; PROVIDED, HOWEVER, that any indemnified party shall have
         the right to employ separate counsel in any such action and to
         participate in the defense thereof but the fees and expenses of such
         counsel shall be at the expense of such indemnified party unless (i)
         the employment thereof has been specifically authorized by the
         indemnifying party in writing, (ii) such indemnified party shall have
         been advised by such counsel that there may be one or more legal
         defenses available to it which are different from or additional to
         those available to the indemnifying party and in the reasonable
         judgment of such counsel it is advisable for such indemnified party to
         employ separate counsel or (iii) the indemnifying party has failed to
         assume the defense of such action and employ counsel reasonably
         satisfactory to the indemnified party, in which case, if such
         indemnified party notifies the indemnifying party in writing that it
         elects to employ separate counsel at the expense of the indemnifying
         party, the indemnifying party shall not have the right to assume the
         defense of such action on behalf of such indemnified party, it being
         understood, however, that the indemnifying party shall not, in
         connection with any one such action or separate but substantially
         similar or related actions in the same jurisdiction arising out of the
         same general allegations or circumstances, be liable for the reasonable
         fees and expenses of more than one separate firm of attorneys at any
         time for all such indemnified parties, which firm shall be designated
         in writing by SG Cowen, if the indemnified parties under this Section 7
         consist of any Underwriter Indemnified Party, or by the Company if the
         indemnified parties under this Section 7 consist of any Company
         Indemnified Parties. Each indemnified party, as a condition of the
         indemnity agreements contained in Sections 7(a) and 7(b) shall use all
         reasonable efforts to cooperate with the indemnifying party in the
         defense of any such action or claim. Subject to the provisions of
         Section 7(d) below, no indemnifying party shall be liable for any
         settlement of any such action effected without its written consent
         (which consent shall not be unreasonably withheld), but if settled with
         its written consent or if there be a final judgment for the plaintiff
         in any such action, the indemnifying party agrees to indemnify and hold
         harmless any indemnified party from and against any loss or liability
         by reason of such settlement or judgment.

         (d) If at any time an indemnified party shall have requested that an
         indemnifying party reimburse the indemnified party for reasonable fees
         and expenses of counsel, such indemnifying party agrees that it shall
         be liable for any settlement of the nature contemplated by this Section
         7 effected without its written consent if (i) such settlement is
         entered into more than 90 days after receipt by such indemnifying party
         of the request for reimbursement, (ii) such indemnifying party shall
         have received


                                       21
<Page>

         notice of the terms of such settlement at least 30 days prior to such
         settlement being entered into and (iii) such indemnifying party shall
         not have reimbursed such indemnified party in accordance with such
         request prior to the date of such settlement.

         (e) If the indemnification provided for in this Section 7 is
         unavailable or insufficient to hold harmless an indemnified party under
         Section 7(a) or 7(b), then each indemnifying party shall, in lieu of
         indemnifying such indemnified party, contribute to the amount paid or
         payable by such indemnified party as a result of such loss, claim,
         damage or liability, or action in respect thereof, (i) in such
         proportion as shall be appropriate to reflect the relative benefits
         received by the Company and the Material Subsidiaries on the one hand
         and the Underwriters on the other from the offering of the Stock or
         (ii) if the allocation provided by clause (i) above is not permitted by
         applicable law, in such proportion as is appropriate to reflect not
         only the relative benefits referred to in clause (i) above but also the
         relative fault of the Company and the Material Subsidiaries on the one
         hand and the Underwriters on the other with respect to the statements
         or omissions which resulted in such loss, claim, damage or liability,
         or action in respect thereof, as well as any other relevant equitable
         considerations. The relative benefits received by the Company and the
         Material Subsidiaries on the one hand and the Underwriters on the other
         with respect to such offering shall be deemed to be in the same
         proportion as the total net proceeds from the offering of the Stock
         purchased under this Agreement (before deducting expenses) received by
         the Company and the Material Subsidiaries bear to the total
         underwriting discounts and commissions received by the Underwriters
         with respect to the Stock purchased under this Agreement, in each case
         as set forth in the table on the cover page of the Prospectus. The
         relative fault shall be determined by reference to, among other things,
         whether the untrue or alleged untrue statement of a material fact or
         the omission or alleged omission to state a material fact relates to
         information supplied by the Company and the Material Subsidiaries on
         the one hand or the Underwriters on the other, the intent of the
         parties and their relative knowledge, access to information and
         opportunity to correct or prevent such untrue statement or omission;
         PROVIDED that the parties hereto agree that the written information
         furnished to the Company through the Representative by or on behalf of
         the Underwriters for use in any Preliminary Prospectus, the
         Registration Statement or the Prospectus consists solely of the
         Underwriter's Information. The Company, the Material Subsidiaries and
         the Underwriters agree that it would not be just and equitable if
         contributions pursuant to this Section 7(e) were to be determined by
         pro rata allocation (even if the Underwriters were treated as one
         entity for such purpose) or by any other method of allocation which
         does not take into account the equitable considerations referred to
         herein. The amount paid or payable by an indemnified party as a result
         of the loss, claim, damage or liability, or action in respect thereof,
         referred to above in this Section 7(e) shall be deemed to include, for
         purposes of this Section 7(e), any legal or other expenses reasonably
         incurred by such indemnified party in connection with investigating or
         defending any such action or claim. Notwithstanding the provisions of
         this Section 7(e), no Underwriter shall be required to contribute any
         amount in excess of the amount by which the total price at which the
         Stock underwritten by it and distributed to the public were offered to
         the public less the amount of any damages which such Underwriter has
         otherwise paid or become liable to pay by reason of any untrue or
         alleged untrue statement or omission or alleged omission. No person
         guilty of fraudulent misrepresentation (within the meaning of Section
         11(f) of the Securities Act) shall be entitled to contribution from any
         person who was not guilty of such fraudulent misrepresentation.

         The Underwriters' obligations to contribute as provided in this Section
7(e) are several in proportion to their respective underwriting obligations and
not joint.


                                       22
<Page>

8. TERMINATION. The obligations of the Underwriters hereunder may be terminated
by SG Cowen, in its absolute discretion by notice given to and received by the
Company prior to delivery of and payment for the Firm Stock if, prior to that
time, any of the events described in Sections 6(o) or 6(s) have occurred
(including the determination by the Representative that in its judgment, the
effect of such event is so material and adverse as to make it impracticable or
inadvisable to proceed with the sale or delivery of the Stock on the terms and
in the manner contemplated in the Prospectus) or if the Underwriters shall
decline to purchase the Stock for any reason permitted under this Agreement.

9. REIMBURSEMENT OF UNDERWRITERS' EXPENSES. If (a) this Agreement shall have
been terminated pursuant to Section 8 or (b) the Company shall fail to tender
the Stock for delivery to the Underwriters for any reason permitted under this
Agreement, the Company shall reimburse the Underwriters for the reasonable fees
and expenses of their counsel and for such other out-of-pocket expenses as shall
have been reasonably incurred by them in connection with this Agreement and the
proposed purchase of the Stock and, upon demand, the Company shall pay the full
amount thereof to SG Cowen. If this Agreement is terminated pursuant to Section
10 by reason of the default of one or more Underwriters, the Company shall not
be obligated to reimburse any defaulting Underwriter on account of those
expenses.

10. SUBSTITUTION OF UNDERWRITERS. If any Underwriter or Underwriters shall
default in its or their obligations to purchase shares of Stock hereunder and
the aggregate number of shares which such defaulting Underwriter or Underwriters
agreed but failed to purchase does not exceed ten percent (10%) of the total
number of shares underwritten, the other Underwriters shall be obligated
severally, in proportion to their respective commitments hereunder, to purchase
the shares which such defaulting Underwriter or Underwriters agreed but failed
to purchase. If any Underwriter or Underwriters shall so default and the
aggregate number of shares with respect to which such default or defaults occur
is more than ten percent (10%) of the total number of shares underwritten and
arrangements satisfactory to the Representative and the Company for the purchase
of such shares by other persons are not made within forty-eight (48) hours after
such default, this Agreement shall terminate.

         If the remaining Underwriters or substituted Underwriters are required
hereby or agree to take up all or part of the shares of Stock of a defaulting
Underwriter or Underwriters as provided in this Section 10, (i) the Company
shall have the right to postpone the Closing Dates for a period of not more than
five (5) full business days in order that the Company may effect whatever
changes may thereby be made necessary in the Registration Statement or the
Prospectus, or in any other documents or arrangements, and the Company agrees
promptly to file any amendments to the Registration Statement or supplements to
the Prospectus which may thereby be made necessary, and (ii) the respective
numbers of shares to be purchased by the remaining Underwriters or substituted
Underwriters shall be taken as the basis of their underwriting obligation for
all purposes of this Agreement. Nothing herein contained shall relieve any
defaulting Underwriter of its liability to the Company or the other Underwriters
for damages occasioned by its default hereunder. Any termination of this
Agreement pursuant to this Section 10 shall be without liability on the part of
any non-defaulting Underwriter or the Company, except expenses to be paid or
reimbursed pursuant to Sections 5 and 9 and except the provisions of Section 7
shall not terminate and shall remain in effect.

11. SUCCESSORS; PERSONS ENTITLED TO BENEFIT OF AGREEMENT. This Agreement shall
inure to the benefit of and be binding upon the several Underwriters, the
Company and their respective successors. Nothing expressed or mentioned in this
Agreement is intended or shall be construed to give any person other than the
persons mentioned in the preceding sentence any legal or equitable right, remedy
or claim under or in respect of this Agreement, or any provisions herein
contained, this Agreement and all conditions and provisions hereof being
intended to be and being for the sole and exclusive benefit of such persons and
for the benefit of no other person; except that the representations, warranties,
covenants, agreements and


                                       23
<Page>

indemnities of the Company contained in this Agreement shall also be for the
benefit of the Underwriter Indemnified Parties, and the indemnities of the
several Underwriters shall also be for the benefit of the Company Indemnified
Parties. It is understood that the Underwriter's responsibility to the Company
is solely contractual in nature and the Underwriters do not owe the Company, or
any other party, any fiduciary duty as a result of this Agreement.

12. SURVIVAL OF INDEMNITIES, REPRESENTATIONS, WARRANTIES, ETC. The respective
indemnities, covenants, agreements, representations, warranties and other
statements of the Company and the several Underwriters, as set forth in this
Agreement or made by them respectively, pursuant to this Agreement, shall remain
in full force and effect, regardless of any investigation made by or on behalf
of any Underwriter, the Company or any person controlling any of them and shall
survive delivery of and payment for the Stock.

13. NOTICES. All statements, requests, notices and agreements hereunder shall be
in writing, and:

         (a) if to the Underwriters, shall be delivered or sent by mail or
         facsimile transmission to SG Cowen Securities Corporation, 1221 Avenue
         of the Americas, New York, New York 10020, Attention: Jorge Pedreira,
         Esq. (Fax: 212-278-7995), with a copy to: Brown Raysman Millstein
         Felder & Steiner LLP, 900 Third Avenue, New York, New York 10022,
         Attention: Stuart Bressman, Esq. (Fax: 212-895-2900).

         (b) if to the Company, shall be delivered or sent by mail or facsimile
         transmission to Inverness Medical Innovations, Inc., 51 Sawyer Road,
         Suite 200, Waltham, Massachusetts 02453, Attention: Paul Hempel, Esq.
         (Fax: 781-647-3939), with a copy to: Goodwin Procter LLP, Exchange
         Place, Boston, Massachusetts 02109, Attention: Scott F. Duggan, Esq.
         (Fax: 617-523-1231).

14. DEFINITIONS OF CERTAIN TERMS. The terms which follow, when used in this
Agreement, shall have the meanings indicated.

                  "BUSINESS DAY" shall mean any day other than a Saturday, a
         Sunday, a legal holiday, a day on which banking institutions or trust
         companies are authorized or obligated by law to close in New York City
         or any day on which the New York Stock Exchange, Inc. is not open for
         trading.

                  "EFFECTIVE DATE" shall mean each date and time that the
         Registration Statement and any post-effective amendment or amendments
         thereto.

                  "EXECUTION TIME" shall mean the date and time that this
         Agreement is executed and delivered by the parties hereto.

                  "INTERFERENCE PROCEEDING" shall have the meaning set forth in
         35 U.S.C.ss.135.

                  "MATERIAL AGREEMENTS" shall mean all agreements filed as
         exhibits to the Registration Statement, the Company's annual report on
         Form 10-K, as amended, for the year ended December 31, 2001 and the
         Company's quarterly report on Form 10-Q for the quarter ended March 31,
         2002.

                  "MATERIAL SUBSIDIARIES" shall mean all or any of Inverness
         Medical, Inc., Unipath Diagnostics, Inc., Inverness Medical Switzerland
         GmbH, IVC Industries, Inc., Unipath Limited and Cambridge Diagnostics
         Ireland Limited, as applicable.

                  "RULE 424" refers to such rule under the Securities Act.


                                       24
<Page>

                  "SUBSIDIARIES" has the meaning set forth in Rule 405 of the
         Rules and Regulations.

                  "U.S. MATERIAL SUBSIDIARY" shall mean Inverness Medical, Inc.,
         Unipath Diagnostics, Inc. and IVC Industries Inc.

15. GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the laws of the State of New York.

16. UNDERWRITERS' INFORMATION. The parties hereto acknowledge and agree that,
for all purposes of this Agreement, the Underwriters' Information consists
solely of the following information in the Prospectus: (i) the paragraph on the
front cover page concerning the terms of the offering by the Underwriters; and
(ii) the statements concerning the Underwriters contained in the third and tenth
paragraph (relating to stabilization) under the heading "Underwriting".

17. AUTHORITY OF THE REPRESENTATIVE. In connection with this Agreement, you will
act for and on behalf of the several Underwriters, and any action taken under
this Agreement by the Representative, will be binding on all the Underwriters.

18. PARTIAL UNENFORCEABILITY. The invalidity or unenforceability of any Section,
paragraph or provision of this Agreement shall not affect the validity or
enforceability of any other Section, paragraph or provision hereof. If any
Section, paragraph or provision of this Agreement is for any reason determined
to be invalid or unenforceable, there shall be deemed to be made such minor
changes (and only such minor changes) as are necessary to make it valid and
enforceable.

19. GENERAL. This Agreement constitutes the entire agreement of the parties to
this Agreement and supersedes all prior written or oral and all contemporaneous
oral agreements, understandings and negotiations with respects to the subject
matter hereof. In this Agreement, the masculine, feminine and neuter genders and
the singular and the plural include one another. The section headings in this
Agreement are for the convenience of the parties only and will not affect the
construction or interpretation of this Agreement. This Agreement may be amended
or modified, and the observance of any term of this Agreement may be waived,
only by a writing signed by the Company and the Representative.

20. COUNTERPARTS. This Agreement may be signed in any number of counterparts,
each of which shall be an original, with the same effect as if the signatures
thereto and hereto were upon the same instrument.

21. LIABILITY OF MATERIAL SUBSIDIARIES. In the event that the Underwriters
seek indemnification pursuant to Section 7 of this Agreement or otherwise
seek recourse with respect to any losses, claims, damages, liabilities or
actions under this Agreement, the underwriters hereby agree to use reasonable
efforts to seek such indemnification from or recourse against the Company
prior to seeking any such indemnification from or recourse against the
Material Subsidiaries.

                                       25
<Page>

         If the foregoing is in accordance with your understanding of the
agreement between the Company, and the several Underwriters, kindly indicate
your acceptance in the space provided for that purpose below.

                                Very truly yours,

                                INVERNESS MEDICAL
                                INNOVATIONS, INC.


                                By: /s/ Ron Zwanziger
                                    ---------------------------------
                                    Name:  Ron Zwanziger
                                    Title:  President and CEO


                                INVERNESS MEDICAL, INC.


                                By: /s/ Ron Zwanziger
                                    ---------------------------------
                                Name:  Ron Zwanziger
                                Title: Chairman and CEO


                                UNIPATH DIAGNOSTICS, INC.


                                By: /s/ Ron Zwanziger
                                    ---------------------------------
                                    Name:  Ron Zwanziger
                                    Title:  President

                                INVERNESS MEDICAL
                                SWITZERLAND GmbH


                                By:   /s/ Paul T. Hempel
                                    ---------------------------------
                                    Name:  Paul T. Hempel
                                    Title: Director

<Page>

                                 UNIPATH LIMITED


                                 By: /s/ Paul T. Hempel
                                     ---------------------------------
                                     Name:  Paul T. Hempel
                                     Title:


                                 CAMBRIDGE DIAGNOSTICS
                                 IRELAND LIMITED


                                 By: /s/ Ian Mitchell
                                     ---------------------------------
                                     Name:  Ian Mitchell
                                     Title:  Managing Director

Accepted as of
the date first above written:

SG COWEN SECURITIES CORPORATION
     Acting on its own behalf
     and as Representative of several
     Underwriters referred to in the
     foregoing Agreement.

By: SG COWEN SECURITIES CORPORATION



By:  /s/ William B. Buchanan, Jr.
     ---------------------------------------
     Name: William B. Buchanan, Jr.
     Title: Head of Equity Capital Markets
<Page>

                                   SCHEDULE A

<Table>
<Caption>
                                      Number      Number of
                                     of Firm      Optional
                                     Shares        Shares
                                      to be         to be
                                    Purchased     Purchased

                                            
SG Cowen Securities Corporation     1,600,000     240,000
                                    ---------     -------

Total                               1,600,000     240,000
                                    =========     =======
</Table>
<Page>

                                   SCHEDULE B



                                 Paul T. Hempel

                                 Duane L. James

                               Anthony J. Bernado

                                Carol R. Goldberg

                                  Doug Shaffer

                                  John F. Levy

                                  Jerry McAleer

                                 Peter Townsend

                                   David Scott

                            Earnest A. Carabillo, Jr.

                                  Ron Zwanziger

                                   John Yonkin

                                  David Toohey

                               Robert P. Khederian

                                 Alfred M. Zeien
<Page>

                                    EXHIBIT I

                                                                    May __, 2002


SG Cowen Securities Corporation
   As representative of the
   several Underwriters
1221 Avenue of the Americas
New York, New York  10020

         Re:  Inverness Medical Innovations, Inc. ____ Shares of Common Stock

Dear Sirs:

         In order to induce SG Cowen Securities Corporation, as representative
of the several underwriters (the "REPRESENTATIVE"), to enter into a certain
underwriting agreement (the "UNDERWRITING AGREEMENT") with Inverness Medical
Innovations, Inc., a Delaware corporation (the "COMPANY"), with respect to the
public offering of shares of the Company's Common Stock, par value $.001 per
share ("COMMON STOCK"), the undersigned hereby agrees, subject to the
limitations set forth below, that for a period of 90 days following the date of
the final prospectus filed by the Company with the Securities and Exchange
Commission in connection with such public offering, the undersigned will not,
without the prior written consent of the Representative, directly or indirectly,
(i) offer, sell, assign, transfer, pledge, contract to sell, or otherwise
dispose of, any shares of Common Stock (including, without limitation, Common
Stock which may be deemed to be beneficially owned by the undersigned in
accordance with the rules and regulations promulgated under the Securities Act
of 1933, as the same may be amended or supplemented from time to time (such
shares, the "BENEFICIALLY OWNED SHARES")) or securities convertible into or
exercisable or exchangeable into Common Stock, (ii) enter into any swap, hedge
or similar agreement or arrangement that transfers in whole or in part, the
economic risk of ownership of the Beneficially Owned Shares or securities
convertible into or exercisable or exchangeable into Common Stock or (iii)
engage in any short selling of the Common Stock, provided that nothing herein
shall be deemed to prevent the conversion of any securities convertible into, or
the exercise of any options or warrants for, shares of Common Stock.

         Notwithstanding the foregoing, if the undersigned is an individual, he
or she may transfer any shares of Common Stock or securities convertible into or
exchangeable or exercisable for Common Stock either during his or her lifetime
or on death (i) by gift, will or intestacy or (ii) to his or her immediate
family or to a trust or family limited partnership the beneficiaries or parties,
as the case may be, of which are exclusively the undersigned and/or a member or
members of his or her immediate family PROVIDED, HOWEVER, that prior to any such
transfer, each transferee shall execute an agreement, reasonably satisfactory to
the Representative, pursuant to which each transferee shall agree to receive and
hold such shares of Common Stock, or securities exercisable or convertible into
or exchangeable for Common Stock, subject to the provisions hereof, and there
shall be no further transfer except in accordance with the provisions hereof.
For the purposes of this paragraph, "immediate family" shall mean spouse, lineal
descendant, father, mother, brother or sister of the transferor.

         Anything contained herein to the contrary notwithstanding, any person
to whom shares of Common Stock or Beneficially Owned Shares are transferred from
the undersigned shall be bound by the terms of this Agreement.
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         In addition, the undersigned hereby waives, from the date hereof until
the expiration of the 90 day period following the date of the Company's final
Prospectus, any and all rights, if any, to request or demand registration
pursuant to the Securities Act of any shares of Common Stock that are registered
in the name of the undersigned or that are Beneficially Owned Shares. In order
to enable enforcement of the covenants made herein, the undersigned hereby
consents to the placing of stop-transfer orders with the transfer agent of the
Common Stock with respect to any shares of Common Stock or Beneficially Owned
Shares.

         In the event the closing of the sale of Common Stock by the Company
pursuant to the Underwriting Agreement is not complete by June 10, 2002, then
the restrictions on transfer contained in this letter shall terminate and shall
be of no further force or effect and the undersigned shall have no further
obligations hereunder.

                                               Name:__________________


                                               Signature: _______________

                                               Title

                                               (if applicable):____________


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