<Page>

                                                                     Exhibit 4.4

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                          REGISTRATION RIGHTS AGREEMENT

                          Dated as of February 10, 2004

                                  By and Among

                      INVERNESS MEDICAL INNOVATIONS, INC.,

                           the GUARANTORS named herein

                                       and

                               UBS SECURITIES LLC

                                       and


               MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
                              as Initial Purchasers

                    8 3/4% Senior Subordinated Notes due 2012


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                                TABLE OF CONTENTS

<Table>
<Caption>
                                                                            Page
                                                                            ----
<S>           <C>                                                             <C>
Section 1.    Definitions......................................................1

Section 2.    Exchange Offer...................................................4

Section 3.    Shelf Registration...............................................7

Section 4.    Additional Interest..............................................8

Section 5.    Registration Procedures.........................................10

Section 6.    Registration Expenses...........................................18

Section 7.    Indemnification.................................................19

Section 8.    Rules 144 and 144A..............................................22

Section 9.    Underwritten Registrations......................................22

Section 10.   Miscellaneous...................................................22

        (a)   No Inconsistent Agreements......................................22
        (b)   Adjustments Affecting Registrable Notes.........................22
        (c)   Amendments and Waivers..........................................23
        (d)   Notices.........................................................23
        (e)   Guarantors......................................................24
        (f)   Successors and Assigns..........................................24
        (g)   Counterparts....................................................24
        (h)   Headings........................................................24
        (i)   GOVERNING LAW...................................................24
        (j)   Severability....................................................25
        (k)   Securities Held by the Issuers or their Affiliates..............25
        (l)   Third-Party Beneficiaries.......................................25
        (m)   Attorneys' Fees.................................................25
        (n)   Entire Agreement................................................25

SIGNATURES....................................................................S-1
</Table>

                                       -i-

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                          REGISTRATION RIGHTS AGREEMENT

            This Registration Rights Agreement (this "AGREEMENT") is dated as of
February 10, 2004, by and among INVERNESS MEDICAL INNOVATIONS, INC., a Delaware
corporation (the "COMPANY"), and each of the Guarantors (as defined herein) (the
Company, and the Guarantors are referred to collectively herein as the
"ISSUERS"), on the one hand, and UBS WARBURG LLC and MERRILL LYNCH, PIERCE,
FENNER & SMITH INCORPORATED, the "INITIAL PURCHASERS"), on the other hand.

            This Agreement is entered into in connection with the Purchase
Agreement, dated as of February 5, 2004, by and among the Issuers and the
Initial Purchasers (the "PURCHASE AGREEMENT"), relating to the offering of
$150,000,000 aggregate principal amount of 8 3/4% Senior Subordinated Notes due
2012 of the Company (including the guarantees thereof by the Guarantors, the
"NOTES"). The execution and delivery of this Agreement is a condition to the
Initial Purchasers' obligation to purchase the Notes under the Purchase
Agreement.

            The parties hereby agree as follows:

     Section 1.  DEFINITIONS

            As used in this Agreement, the following terms shall have the
following meanings:

            "ACTION" shall have the meaning set forth in Section 7(c) hereof.

            "ADDITIONAL INTEREST" shall have the meaning set forth in Section
4(a) hereof.

            "ADVICE" shall have the meaning set forth in Section 5 hereof.

            "ADDITIONAL INTEREST PAYMENT DATE" shall have the meaning set forth
in Section 4(b) hereof.

            "AGREEMENT" shall have the meaning set forth in the first
introductory paragraph hereto.

            "APPLICABLE PERIOD" shall have the meaning set forth in Section 2(b)
hereof.

            "BOARD OF DIRECTORS" shall have the meaning set forth in Section 5
hereof.

            "BUSINESS DAY" shall mean a day that is not a Legal Holiday.

            "COMPANY" shall have the meaning set forth in the introductory
paragraph hereto and shall also include the Company's permitted successors and
assigns.

            "COMMISSION" shall mean the Securities and Exchange Commission.

            "DAY" shall mean a calendar day.

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                                       -2-

            "DELAY PERIOD" shall have the meaning set forth in Section 5 hereof.

            "EFFECTIVENESS PERIOD" shall have the meaning set forth in the
second paragraph of Section 3(b) hereof.

            "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, as
amended, and the rules and regulations of the Commission promulgated thereunder.

            "EXCHANGE NOTES" shall have the meaning set forth in Section 2(a)
hereof.

            "EXCHANGE OFFER" shall have the meaning set forth in Section 2(a)
hereof.

            "EXCHANGE OFFER REGISTRATION STATEMENT" shall have the meaning set
forth in Section 2(a) hereof.

            "GUARANTORS" means each signatory to this Agreement on the date
hereof, and each Person who executes and delivers a counterpart of this
Agreement hereafter pursuant to Section 10(e) hereof.

            "HOLDER" shall mean any holder of a Registrable Note or Registrable
Notes.

            "INDENTURE" shall mean the Indenture, dated as of February 10, 2004,
by and among the Issuers and U.S. Bank Trust National Association, as trustee,
pursuant to which the Notes are being issued, as amended or supplemented from
time to time in accordance with the terms thereof.

            "INITIAL PURCHASERS" shall have the meaning set forth in the first
introductory paragraph hereof.

            "INSPECTORS" shall have the meaning set forth in Section 5(n)
hereof.

            "ISSUE DATE" shall mean February 10, 2004, the date of original
issuance of the Notes.

            "ISSUERS" shall have the meaning set forth in the first introductory
paragraph hereto.

            "LEGAL HOLIDAY" shall mean a Saturday, a Sunday or a day on which
banking institutions in New York, New York are required by law, regulation or
executive order to remain closed.

            "LOSSES" shall have the meaning set forth in Section 7(a) hereof.

            "NASD" shall have the meaning set forth on Section 5(s) hereof.

            "NOTES" shall have the meaning set forth in the second introductory
paragraph hereto.

            "PARTICIPANT" shall have the meaning set forth in Section 7(a)
hereof.

            "PARTICIPATING BROKER-DEALER" shall have the meaning set forth in
Section 2(b) hereof.

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                                       -3-

            "PERSON" shall mean an individual, corporation, partnership, joint
venture association, joint stock company, trust, unincorporated limited
liability company, government or any agency or political subdivision thereof or
any other entity.

            "PRIVATE EXCHANGE" shall have the meaning set forth in Section 2(b)
hereof.

            "PRIVATE EXCHANGE NOTES" shall have the meaning set forth in Section
2(b) hereof.

            "PROSPECTUS" shall mean the prospectus included in any Registration
Statement (including, without limitation, any prospectus subject to completion
and a prospectus that includes any information previously omitted from a
prospectus filed as part of an effective registration statement in reliance upon
Rule 430A promulgated under the Securities Act), as amended or supplemented by
any prospectus supplement, and all other amendments and supplements to the
Prospectus, including post-effective amendments, and all material incorporated
by reference or deemed to be incorporated by reference in such Prospectus.

            "PURCHASE AGREEMENT" shall have the meaning set forth in the second
introductory paragraph hereof.

            "RECORDS" shall have the meaning set forth in Section 5(n) hereof.

            "REGISTRABLE NOTES" shall mean each Note upon its original issuance
and at all times subsequent thereto, each Exchange Note as to which Section
2(c)(iii) hereof is applicable upon original issuance and at all times
subsequent thereto and each Private Exchange Note upon original issuance thereof
and at all times subsequent thereto, in each case until (i) a Registration
Statement (other than, with respect to any Exchange Note as to which Section
2(c)(iii) hereof is applicable, the Exchange Offer Registration Statement)
covering such Note, Exchange Note or Private Exchange Note has been declared
effective by the Commission and such Note, Exchange Note or such Private
Exchange Note, as the case may be, has been disposed of in accordance with such
effective Registration Statement, (ii) such Note has been exchanged pursuant to
the Exchange Offer for an Exchange Note or Exchange Notes that may be resold
without restriction under state and federal securities laws, (iii) such Note,
Exchange Note or Private Exchange Note, as the case may be, ceases to be
outstanding for purposes of the Indenture or (iv) such Note, Exchange Note or
Private Exchange Note has been sold in compliance with Rule 144 or is salable
pursuant to Rule 144(k).

            "REGISTRATION DEFAULT" shall have the meaning set forth in Section
4(a) hereof.

            "REGISTRATION STATEMENT" shall mean any appropriate registration
statement of the Issuers covering any of the Registrable Notes filed with the
Commission under the Securities Act, and all amendments and supplements to any
such Registration Statement, including post-effective amendments, in each case
including the Prospectus contained therein, all exhibits thereto and all
material incorporated by reference therein.

            "REQUESTING PARTICIPATING BROKER-DEALER" shall have the meaning set
forth in Section 2(b) hereof.

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                                       -4-

            "RULE 144" shall mean Rule 144 promulgated under the Securities Act,
as such Rule may be amended from time to time, or any similar rule (other than
Rule 144A) or regulation hereafter adopted by the Commission providing for
offers and sales of securities made in compliance therewith resulting in offers
and sales by subsequent holders that are not affiliates of an issuer of such
securities being free of the registration and prospectus delivery requirements
of the Securities Act.

            "RULE 144A" shall mean Rule 144A promulgated under the Securities
Act, as such Rule may be amended from time to time, or any similar rule (other
than Rule 144) or regulation hereafter adopted by the Commission.

            "RULE 415" shall mean Rule 415 promulgated under the Securities Act,
as such Rule may be amended from time to time, or any similar rule or regulation
hereafter adopted by the Commission.

            "SECURITIES ACT" shall mean the Securities Act of 1933, as amended,
and the rules and regulations of the Commission promulgated thereunder.

            "SHELF FILING EVENT" shall have the meaning set forth in Section
2(c) hereof.

            "SHELF REGISTRATION" shall have the meaning set forth in Section
3(a) hereof.

            "SHELF REGISTRATION STATEMENT" shall mean a Registration Statement
filed in connection with a Shelf Registration.

            "TIA" shall mean the Trust Indenture Act of 1939, as amended.

            "TRUSTEE" shall mean the trustee under the Indenture and the trustee
(if any) under any indenture governing the Exchange Notes and Private Exchange
Notes.

            "UNDERWRITTEN REGISTRATION OR UNDERWRITTEN OFFERING" shall mean a
registration in which securities of the Issuers are sold to an underwriter for
reoffering to the public.

     Section 2.  EXCHANGE OFFER

            (a)     The Issuers shall (i) file a Registration Statement (the
"EXCHANGE OFFER REGISTRATION STATEMENT") within 150 days after the Issue Date
with the Commission on an appropriate registration form with respect to a
registered offer (the "EXCHANGE OFFER") to exchange any and all of the
Registrable Notes for a like aggregate principal amount of notes (including the
guarantees with respect thereto, the "EXCHANGE NOTES") that are identical in all
material respects to the Notes (except that the Exchange Notes shall not contain
terms with respect to transfer restrictions or Additional Interest upon a
Registration Default), (ii) use their commercially reasonable efforts to cause
the Exchange Offer Registration Statement to be declared effective under the
Securities Act within 240 days after the Issue Date and (iii) use their
commercially reasonable efforts to consummate the Exchange Offer within 270 days
after the Issue Date. Upon the Exchange Offer Registration Statement being
declared effective by the Commission, the Issuers will offer the Exchange Notes
in exchange for sur-

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                                       -5-

render of the Notes. The Issuers shall keep the Exchange Offer open for not less
than 30 days (or longer if required by applicable law) after the date notice of
the Exchange Offer is mailed to Holders.

            Each Holder that participates in the Exchange Offer will be required
to represent to the Issuers in writing that (i) any Exchange Notes to be
received by it will be acquired in the ordinary course of its business, (ii) it
has no arrangement or understanding with any Person to participate in the
distribution (within the meaning of the Securities Act) of the Exchange Notes in
violation of the provisions of the Securities Act , (iii) it is not an affiliate
of the Company or any Guarantor as defined by rule 405 of the Securities Act, or
if it is an affiliate, it will comply with the registration and prospectus
delivery requirements of the Securities Act to the extent applicable, (iv) if
such Holder is not a broker-dealer, it is not engaged in, and does not intend to
engage in, a distribution of Exchange Notes and (v) if such Holder is a
broker-dealer that will receive Exchange Notes for its own account in exchange
for Notes that were acquired as a result of market-making or other trading
activities, it will deliver a prospectus in connection with any resale of such
Exchange Notes.

            (b)     The Issuers and the Initial Purchasers acknowledge that the
staff of the Commission has taken the position that any broker-dealer that
elects to exchange Notes that were acquired by such broker-dealer for its own
account as a result of market-making or other trading activities for Exchange
Notes in the Exchange Offer (a "PARTICIPATING BROKER-DEALER") may be deemed to
be an "underwriter" within the meaning of the Securities Act and must deliver a
prospectus meeting the requirements of the Securities Act in connection with any
resale of such Exchange Notes (other than a resale of an unsold allotment
resulting from the original offering of the Notes).

            The Issuers and the Initial Purchasers also acknowledge that the
staff of the Commission has taken the position that if the Prospectus contained
in the Exchange Offer Registration Statement includes a plan of distribution
containing a statement to the above effect and the means by which Participating
Broker-Dealers may resell the Exchange Notes, without naming the Participating
Broker-Dealers or specifying the amount of Exchange Notes owned by them, such
Prospectus may be delivered by Participating Broker-Dealers to satisfy their
prospectus delivery obligations under the Securities Act in connection with
resales of Exchange Notes for their own accounts, so long as the Prospectus
otherwise meets the requirements of the Securities Act.

            In light of the foregoing, if requested by a Participating
Broker-Dealer (a "REQUESTING PARTICIPATING BROKER-DEALER"), the Issuers agree to
use their commercially reasonable efforts to keep the Exchange Offer
Registration Statement continuously effective for a period of 180 days after the
date on which the Exchange Registration Statement is declared effective, or such
longer period if extended pursuant to the penultimate paragraph of Section 5
hereof (such period, the "APPLICABLE PERIOD"), or such earlier date as all
Requesting Participating Broker-Dealers shall have notified the Company in
writing that such Requesting Participating Broker-Dealers have resold all
Exchange Notes acquired in the Exchange Offer. The Issuers shall include a plan
of distribution in such Exchange Offer Registration Statement that meets the
requirements set forth in the preceding paragraph.

            If, prior to consummation of the Exchange Offer, an Initial
Purchaser or any Holder, as the case may be, holds any Notes acquired by it that
have, or that are reasonably likely to be determined to have, the status of an
unsold allotment in an initial distribution, or if any Holder is not entitled to
participate in the Exchange Offer, the Issuers upon the written request of the
Initial Purchasers

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                                       -6-

or any such Holder, as the case may be, shall simultaneously with the delivery
of the Exchange Notes in the Exchange Offer, issue and deliver to the Initial
Purchasers or any such Holder, as the case may be, in exchange (the "PRIVATE
EXCHANGE") for such Notes held by the Initial Purchasers or any such Holder, as
the case may be, a like principal amount of notes (the "PRIVATE EXCHANGE NOTES")
of the Issuers that are identical in all material respects to the Exchange Notes
except that the Private Exchange Notes may be subject to restrictions on
transfer and, in such a case, will bear a legend to such effect; PROVIDED,
HOWEVER, that the Issuers shall not be required to effect a Private Exchange if
in the written opinion of counsel for the Issuers or counsel for the Initial
Purchasers (copies of which are delivered to the Initial Purchasers or such
Holder) such Private Exchange cannot be effected without registration under the
Securities Act. The Private Exchange Notes shall be issued pursuant to the same
indenture as the Exchange Notes and bear the same CUSIP number as the Exchange
Notes.

            Upon consummation of the Exchange Offer in accordance with this
Section 2, the Issuers shall have no further registration obligations other than
the Issuers' continuing registration obligations with respect to (i) Private
Exchange Notes, (ii) Exchange Notes held by Participating Broker-Dealers and
(iii) Notes or Exchange Notes as to which clause (c)(iii) of this Section 2
applies.

            In connection with the Exchange Offer, the Issuers shall:

            (1)     mail or cause to be mailed to each Holder entitled to
     participate in the Exchange Offer a copy of the Prospectus forming part of
     the Exchange Offer Registration Statement, together with an appropriate
     letter of transmittal and related documents;

            (2)     utilize the services of a depositary for the Exchange Offer
     with an address in the Borough of Manhattan, The City of New York;

            (3)     permit Holders to withdraw tendered Notes at any time prior
     to the close of business, New York time, on the last Business Day on which
     the Exchange Offer shall remain open; and

            (4)     otherwise comply in all material respects with all
     applicable laws, rules and regulations.

            As soon as practicable after the close of the Exchange Offer and the
Private Exchange, if any, the Company shall:

            (1)     accept for exchange all Notes validly tendered and not
     validly withdrawn by the Holders pursuant to the Exchange Offer and the
     Private Exchange, if any;

            (2)     deliver or cause to be delivered to the Trustee for
     cancellation all Notes so accepted for exchange; and

            (3)     cause the Trustee to authenticate and deliver promptly to
     each such Holder of Notes, Exchange Notes or Private Exchange Notes, as the
     case may be, equal in principal amount to the Notes of such Holder so
     accepted for exchange.

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                                       -7-

            The Exchange Offer and the Private Exchange shall not be subject to
any conditions, other than that (i) the Exchange Offer or Private Exchange, as
the case may be, does not violate applicable law or any applicable
interpretation of the staff of the Commission, (ii) no action or proceeding
shall have been instituted or threatened in any court or by any governmental
agency which might materially impair the ability of the Issuers to proceed with
the Exchange Offer or the Private Exchange and (iii) all governmental approvals
shall have been obtained, which approvals the Company deems necessary for the
consummation of the Exchange Offer or Private Exchange.

            The Exchange Notes and the Private Exchange Notes shall be issued
under (i) the Indenture or (ii) an indenture identical in all material respects
to the Indenture (in either case, with such changes as are necessary to comply
with any requirements of the Commission to effect or maintain the qualification
thereof under the TIA) and which, in either case, has been qualified under the
TIA and shall provide that (a) the Exchange Notes shall not be subject to the
transfer restrictions set forth in the Indenture and (b) the Private Exchange
Notes shall be subject to the transfer restrictions set forth in the Indenture.
The Indenture or such indenture shall provide that the Exchange Notes, the
Private Exchange Notes and the Notes shall vote and consent together on all
matters as one class and that none of the Exchange Notes, the Private Exchange
Notes or the Notes will have the right to vote or consent as a separate class on
any matter.

            (c)     In the event that (i) any changes in law or the applicable
interpretations of the staff of the Commission do not permit the Issuers to
effect the Exchange Offer, (ii) for any reason the Exchange Offer is not
consummated within 270 days of the Issue Date, (iii) any Holder, other than an
Initial Purchaser, is prohibited by law or the applicable interpretations of the
staff of the Commission from participating in the Exchange Offer and so requests
with respect to its Registrable Notes, (iv) in the case of any Holder who
participates in the Exchange Offer, such Holder does not receive Exchange Notes
on the date of the exchange that may be sold without restriction under state and
federal securities laws (other than due solely to the status of such Holder as
an affiliate of any Issuer within the meaning of the Securities Act) and such
Holder so requests with respect to its Registrable Notes (v) the Initial
Purchasers so request with respect to Notes or Private Exchange Notes that have,
or that are reasonably likely to be determined to have, the status of unsold
allotments in an initial distribution (each such event referred to in clauses
(i) through (v) of this sentence, a "SHELF FILING EVENT"), then the Issuers
shall file a Shelf Registration pursuant to Section 3 hereof.

      Section 3.  SHELF REGISTRATION

            If at any time a Shelf Filing Event shall occur, then:

            (a)     The Issuers shall file with the Commission a Registration
     Statement for an offering to be made on a continuous basis pursuant to Rule
     415 covering all of the Registrable Notes not exchanged in the Exchange
     Offer, Private Exchange Notes and Exchange Notes as to which Section
     2(c)(iii) is applicable (the "SHELF REGISTRATION"). The Issuers shall file
     the Shelf Registration with the Commission as promptly as practicable prior
     to the later of (i) 150 days after the Issue Date and (ii) 60 days after
     the occurrence of a Shelf Registration Event. The Shelf Registration shall
     be on Form S-1 or another appropriate form permitting registration of such
     Registrable Notes for resale by Holders in the manner or manners designated
     by

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                                       -8-

     them (including, without limitation, one or more underwritten offerings).
     The Issuers shall not permit any securities other than the Registrable
     Notes to be included in the Shelf Registration.

            (b)     The Issuers shall use their (x) commercially reasonable
     efforts to cause the Shelf Registration to be declared effective under the
     Securities Act on or prior to the later of (i) 270 days after the Issue
     Date and (ii) 90 days after the filing of the Shelf Registration and (y)
     commercially reasonable efforts to keep the Shelf Registration continuously
     effective under the Securities Act for the period ending on the date which
     is two years from the Issue Date, subject to extension pursuant to the
     penultimate paragraph of Section 5 hereof (the "EFFECTIVENESS PERIOD"), or
     such shorter period ending when all Registrable Notes covered by the Shelf
     Registration have been sold in the manner set forth and as contemplated in
     the Shelf Registration; PROVIDED, HOWEVER, that (i) the Effectiveness
     Period in respect of the Shelf Registration shall be extended to the extent
     required to permit dealers to comply with the applicable prospectus
     delivery requirements of Rule 174 under the Securities Act and as otherwise
     provided herein and (ii) the Company may suspend the effectiveness of the
     Shelf Registration Statement by written notice to the Holders solely (x) in
     accordance with the penultimate paragraph of Section 5 hereof and (y) as a
     result of the filing of a post-effective amendment to the Shelf
     Registration Statement to incorporate annual audited financial information
     with respect to the Company where such post-effective amendment is not yet
     effective and needs to be declared effective to permit Holders to use the
     related Prospectus.

            (c)     The Issuers agree to supplement or make amendments to the
     Shelf Registration Statement as and when required by the rules, regulations
     or instructions applicable to the registration form used for such Shelf
     Registration Statement or by the Securities Act or rules and regulations
     thereunder for shelf registration, or if reasonably requested by (i) the
     Holders of a majority in aggregate principal amount of the Registrable
     Notes covered by such Registration Statement or (ii) by any underwriter of
     such Registrable Notes.

      Section 4. ADDITIONAL INTEREST

            (a)     The Issuers and the Initial Purchasers agree that the
Holders will suffer damages if the Issuers fails to fulfill their obligations
under Section 2 or Section 3 hereof and that it would not be feasible to
ascertain the extent of such damages with precision. Accordingly, the Issuers
agree that if:

            (i)     the Exchange Offer Registration Statement is not filed with
     the Commission on or prior to the 150th day following the Issue Date or, if
     that day is not a Business Day, the next day that is a Business Day,

            (ii)    the Exchange Offer Registration Statement is not declared
     effective on or prior to the 240th day following the Issue Date or, if that
     day is not a Business Day, the next day that is a Business Day,

            (iii)   the Exchange Offer is not consummated on or prior to the
     270th day following the Issue Date, or, if that day is not a Business Day,
     the next day that is a Business Day, or

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                                       -9-

            (iv)    the Shelf Registration Statement is required to be filed
     but is not declared effective on or prior to the later of (x) the 270th day
     following the Issue Date and (y) the 90th day after the filing of the Shelf
     Registration Statement, or, if any such day is not a Business Day, the next
     day that is a Business Day, or is declared effective by such date but
     thereafter ceases to be effective or fails to be usable, except if such
     Shelf Registration Statement is not declared effective due to a delayed
     filing or ceases to be effective or fails to be usable as specifically
     permitted by the penultimate paragraph of Section 5 hereof.

(each such event referred to in clauses (i) through (iv), a "REGISTRATION
DEFAULT"), additional interest in the form of additional cash interest
("ADDITIONAL INTEREST") will accrue on the affected Notes and the affected
Exchange Notes, as applicable. The rate of Additional Interest will be 0.25% per
annum for the first 90-day period immediately following the occurrence of a
Registration Default, increasing by an additional 0.25% per annum with respect
to each subsequent 90-day period up to a maximum amount of Additional Interest
of 1.00% per annum, from and including the date on which any such Registration
Default shall occur to, but excluding, the earlier of (1) the date on which all
Registration Defaults have been cured or (2) the date on which all the Notes and
Exchange Notes otherwise become freely transferable by Holders other than
affiliates of the Issuers without further registration under the Securities Act.
If, after the cure of all Registration Defaults then in effect, there is a
subsequent Registration Default, the rate of Additional Interest for such
subsequent Registration Default shall initially be 0.25% regardless of the rate
in effect with respect to any prior Registration Default at the time of cure of
such Registration Default.

            Notwithstanding the foregoing, (1) the amount of Additional Interest
payable shall not increase because more than one Registration Default has
occurred and is pending and (2) a Holder of Notes, Exchange Notes or Private
Exchange Notes who is not entitled to the benefits of the Shelf Registration
Statement (I.E., such Holder has not elected to include information) shall not
be entitled to Additional Interest with respect to a Registration Default that
pertains to the Shelf Registration Statement.

            (b)     So long as Notes remain outstanding, the Company shall
notify the Trustee within five Business Days after each and every date on which
a Registration Default occurs in respect of which Additional Interest is
required to be paid. Any amounts of Additional Interest due pursuant to clauses
(a)(i), (a)(ii), (a)(iii) or (a)(iv) of this Section 4 will be payable in cash
semi-annually on each February 15 and August 15 (each a "ADDITIONAL INTEREST
PAYMENT DATE"), commencing with the first such date occurring after any such
Additional Interest commences to accrue, to Holders to whom regular interest is
payable on such Additional Interest Payment Date with respect to Notes that are
Registrable Notes (other than Holders not entitled to Additional Interest
pursuant to clause (2) of the preceding paragraph). The amount of Additional
Interest for Registrable Notes will be determined by multiplying the applicable
rate of Additional Interest by the aggregate principal amount of all such
Registrable Notes outstanding on the Additional Interest Payment Date following
such Registration Default in the case of the first such payment of Additional
Interest with respect to a Registration Default (and thereafter at the next
succeeding Additional Interest Payment Date until the cure of such Registration
Default), multiplied by a fraction, the numerator of which is the number of days
such Additional Interest rate was applicable during such period (determined on
the basis of a 360-day year comprised of twelve 30-day months and, in the case
of a partial month, the actual number of days elapsed), and the denominator of
which is 360.

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                                      -10-

     Section 5.  REGISTRATION PROCEDURES

            In connection with the filing of any Registration Statement pursuant
to Section 2 or 3 hereof, the Issuers shall effect such registrations to permit
the sale of the securities covered thereby in accordance with the intended
method or methods of disposition thereof, and pursuant thereto and in connection
with any Registration Statement filed by the Issuers hereunder, the Issuers
shall:

            (a)     Prepare and file with the Commission the Registration
     Statement or Registration Statements prescribed by Section 2 or 3 hereof,
     and use their commercially reasonable efforts to cause each such
     Registration Statement to become effective and their commercially
     reasonable efforts to cause such Registration Statement to remain effective
     as provided herein; PROVIDED, HOWEVER, that, if (1) such filing is pursuant
     to Section 3 hereof, or (2) a Prospectus contained in the Exchange Offer
     Registration Statement filed pursuant to Section 2 hereof is required to be
     delivered under the Securities Act by any Participating Broker-Dealer who
     seeks to sell Exchange Notes during the Applicable Period relating thereto,
     before filing any Registration Statement or Prospectus or any amendments or
     supplements thereto, the Issuers shall furnish to and afford the Holders of
     the Registrable Notes covered by such Registration Statement or each such
     Participating Broker-Dealer, as the case may be, their counsel (if such
     counsel is known to the Issuers) and the managing underwriters, if any, a
     reasonable opportunity to review copies of all such documents (including
     copies of any documents to be incorporated by reference therein and all
     exhibits thereto) proposed to be filed (in each case at least five Business
     Days prior to such filing or such later date as is reasonable under the
     circumstances). The Issuers shall not file any Registration Statement or
     Prospectus or any amendments or supplements thereto if the Holders of a
     majority in aggregate principal amount of the Registrable Notes covered by
     such Registration Statement, or any such Participating Broker-Dealer, as
     the case may be, or the managing underwriters, if any, shall reasonably
     object on a timely basis.

            (b)     Prepare and file with the Commission such amendments and
     post-effective amendments to each Shelf Registration Statement or Exchange
     Offer Registration Statement, as the case may be, as may be necessary to
     keep such Registration Statement continuously effective for the
     Effectiveness Period or the Applicable Period, as the case may be; cause
     the related Prospectus to be supplemented by any Prospectus supplement
     required by applicable law, and as so supplemented to be filed pursuant to
     Rule 424 (or any similar provisions then in force) promulgated under the
     Securities Act; and comply with the applicable provisions of the Securities
     Act and the Exchange Act with respect to the disposition of all securities
     covered by such Registration Statement as so amended or in such Prospectus
     as so supplemented and with respect to the subsequent resale of any
     securities being sold by a Participating Broker-Dealer covered by any such
     Prospectus, in each case, in accordance with the intended methods of
     distribution set forth in such Registration Statement or Prospectus, as so
     amended.

            (c)     If (1) a Shelf Registration is filed pursuant to Section 3
     hereof or (2) a Prospectus contained in the Exchange Offer Registration
     Statement filed pursuant to Section 2 hereof is required to be delivered
     under the Securities Act by any Participating Broker-Dealer who seeks to
     sell Exchange Notes during the Applicable Period relating thereto from whom
     the Company has received written notice that such Bro-

<Page>

                                      -11-

     ker Dealer will be a Participating Broker-Dealer in the applicable Exchange
     Offer, notify the selling Holders of Registrable Notes, or each such
     Participating Broker-Dealer, as the case may be, their counsel (if such
     counsel is known to the Issuers) and the managing underwriters, if any, as
     promptly as possible, and, if requested by any such Person, confirm such
     notice in writing, (i) when a Prospectus or any Prospectus supplement or
     post-effective amendment has been filed, and, with respect to a
     Registration Statement or any post-effective amendment, when the same has
     become effective under the Securities Act (including in such notice a
     written statement that any Holder may, upon request, obtain, at the sole
     expense of the Issuers, one conformed copy of such Registration Statement
     or post-effective amendment including financial statements and schedules,
     documents incorporated or deemed to be incorporated by reference and
     exhibits), (ii) of the issuance by the Commission of any stop order
     suspending the effectiveness of a Registration Statement or of any order
     preventing or suspending the use of any preliminary prospectus or the
     initiation of any proceedings for that purpose, (iii) if at any time when a
     Prospectus is required by the Securities Act to be delivered in connection
     with sales of the Registrable Notes or resales of Exchange Notes by
     Participating Broker-Dealers the representations and warranties of the
     Issuers contained in any agreement contemplated by Section 5(m) hereof
     cease to be true and correct in all material respects, (iv) of the receipt
     by any of the Issuers of any notification with respect to the suspension of
     the qualification or exemption from qualification of a Registration
     Statement or any of the Registrable Notes or the Exchange Notes for offer
     or sale in any jurisdiction, or the initiation or threatening of any
     proceeding for such purpose, (v) of the happening of any event, the
     existence of any condition or any information becoming known to any Issuer
     that makes any statement made in such Registration Statement or related
     Prospectus or any document incorporated or deemed to be incorporated
     therein by reference untrue in any material respect or that requires the
     making of any changes in or amendments or supplements to such Registration
     Statement, Prospectus or documents so that, in the case of the Registration
     Statement, it 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 not misleading, and that in the case of the
     Prospectus, it 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 light of the circumstances under
     which they were made, not misleading, and (vi) of the Company's
     determination that a post-effective amendment to a Registration Statement
     would be appropriate.

            (d)     If (1) a Shelf Registration is filed pursuant to Section 3
     hereof or (2) a Prospectus contained in the Exchange Offer Registration
     Statement filed pursuant to Section 2 hereof is required to be delivered
     under the Securities Act by any Participating Broker-Dealer who seeks to
     sell Exchange Notes during the Applicable Period, use their commercially
     reasonable efforts to prevent the issuance of any order suspending the
     effectiveness of a Registration Statement or of any order preventing or
     suspending the use of a Prospectus or suspending the qualification (or
     exemption from qualification) of any of the Registrable Notes or the
     Exchange Notes, as the case may be, for sale in any jurisdiction, and, if
     any such order is issued, to use their reasonable best efforts to obtain
     the withdrawal of any such order at the earliest practicable moment.

            (e)     If (1) a Shelf Registration is filed pursuant to Section 3
     hereof or (2) a Prospectus contained in the Exchange Offer Registration
     Statement filed pursuant to Section 2

<Page>

                                      -12-

     hereof is required to be delivered under the Securities Act by any
     Participating Broker-Dealer who seeks to sell Exchange Notes during the
     Applicable Period and if reasonably requested by the managing underwriter
     or underwriters (if any), the Holders of a majority in aggregate principal
     amount of the Registrable Notes covered by such Registration Statement or
     any Participating Broker-Dealer, as the case may be, (i) promptly
     incorporate in such Registration Statement or Prospectus a prospectus
     supplement or post-effective amendment such information as the managing
     underwriter or underwriters (if any), such Holders or any Participating
     Broker-Dealer, as the case may be (based upon advice of counsel), determine
     is reasonably necessary to be included therein and (ii) make all required
     filings of such prospectus supplement or such post-effective amendment as
     soon as practicable after the Company has received notification of the
     matters to be incorporated in such prospectus supplement or post-effective
     amendment; PROVIDED, HOWEVER, that the Issuers shall not be required to
     take any action hereunder that would, in the written opinion of counsel to
     the Issuers, violate applicable laws.

            (f)     If (1) a Shelf Registration is filed pursuant to Section 3
     hereof or (2) a Prospectus contained in the Exchange Offer Registration
     Statement filed pursuant to Section 2 hereof is required to be delivered
     under the Securities Act by any Participating Broker-Dealer who seeks to
     sell Exchange Notes during the Applicable Period, furnish to each selling
     Holder of Registrable Notes or each such Participating Broker-Dealer, as
     the case may be, who so requests, in writing their counsel (if such counsel
     is known to the Issuers) and each managing underwriter, if any, at the sole
     expense of the Issuers, one conformed copy of the Registration Statement or
     Registration Statements and each post-effective amendment thereto,
     including financial statements and schedules, and, if requested, all
     documents incorporated therein by reference and all exhibits as soon as
     reasonably practicable after the filing of such documents with the
     Commission.

            (g)     If (1) a Shelf Registration is filed pursuant to Section 3
     hereof or (2) a Prospectus contained in the Exchange Offer Registration
     Statement filed pursuant to Section 2 hereof is required to be delivered
     under the Securities Act by any Participating Broker-Dealer who seeks to
     sell Exchange Notes during the Applicable Period, deliver to each selling
     Holder of Registrable Notes or each such Participating Broker-Dealer, as
     the case may be, their respective counsel (if such counsel is known to the
     Issuers), and the underwriters, if any, at the sole expense of the Issuers,
     as many copies of the Prospectus or Prospectuses (including each form of
     preliminary prospectus) and each amendment or supplement thereto and any
     documents incorporated by reference therein as such Persons may reasonably
     request; and, subject to the last paragraph of this Section 5, the Issuers
     hereby consent to the use of such Prospectus and each amendment or
     supplement thereto by each of the selling Holders of Registrable Notes or
     each such Participating Broker-Dealer, as the case may be, and the
     underwriters or agents, if any, and dealers (if any), in connection with
     the offering and sale of the Registrable Notes covered by, or the sale by
     Participating Broker-Dealers of the Exchange Notes pursuant to, such
     Prospectus and any amendment or supplement thereto.

            (h)     Prior to any public offering of Registrable Notes or
     Exchange Notes or any delivery of a Prospectus contained in the Exchange
     Offer Registration Statement by any Participating Broker-Dealer who seeks
     to sell Exchange Notes during the Applicable Period, use their commercially
     reasonable efforts to register or qualify, and to cooperate with the
     selling

<Page>

                                      -13-

     Holders of Registrable Notes or each such Participating Broker-Dealer, as
     the case may be, the managing underwriter or underwriters, if any, and
     their respective counsel in connection with the registration or
     qualification (or exemption from such registration or qualification) of
     such Registrable Notes or Exchange Notes, as the case may be, for offer and
     sale under the securities or "blue sky" laws of such jurisdictions within
     the United States as any selling Holder, Participating Broker-Dealer, or
     the managing underwriter or underwriters reasonably requests in writing;
     PROVIDED, HOWEVER, that where Exchange Notes or Registrable Notes are
     offered other than through an underwritten offering, the Issuers agrees to
     use their commercially reasonable efforts to cause the Issuers' counsel to
     perform "blue sky" investigations and file registrations and qualifications
     required to be filed pursuant to this Section 5(h); keep each such
     registration or qualification (or exemption therefrom) effective during the
     period such Registration Statement is required to be kept effective and do
     any and all other acts or things reasonably necessary or advisable to
     enable the disposition in such jurisdictions of such Exchange Notes or
     Registrable Notes covered by the applicable Registration Statement;
     PROVIDED, HOWEVER, that no Issuer shall be required to (A) qualify
     generally to do business in any jurisdiction where it is not then so
     qualified, (B) take any action that would subject it to general service of
     process in any such jurisdiction where it is not then so subject or (C)
     subject itself to taxation in excess of a nominal dollar amount in any such
     jurisdiction where it is not then so subject.

            (i)     If a Shelf Registration is filed pursuant to Section 3
     hereof, cooperate with the selling Holders of Registrable Notes and the
     managing underwriter or underwriters, if any, to facilitate the timely
     preparation and delivery of certificates representing Registrable Notes to
     be sold, which certificates shall not bear any restrictive legends and
     shall be in a form eligible for deposit with The Depository Trust Company;
     and enable such Registrable Notes to be in such authorized denominations
     and registered in such names as the managing underwriter or underwriters,
     if any, or selling Holders may request at least five Business Days prior to
     any sale of such Registrable Notes.

            (j)     Use their commercially reasonable efforts to cause the
     Registrable Notes or Exchange Notes covered by any Registration Statement
     to be registered with or approved by such other governmental agencies or
     authorities as may be reasonably necessary to enable the seller or sellers
     thereof or the underwriter or underwriters, if any, to consummate the
     disposition of such Registrable Notes or Exchange Notes, except as may be
     required solely as a consequence of the nature of such selling Holder's
     business, in which case the Issuers will cooperate in all reasonable
     respects with the filing of such Registration Statement and the granting of
     such approvals.

            (k)     If (1) a Shelf Registration is filed pursuant to Section 3
     hereof or (2) a Prospectus contained in the Exchange Offer Registration
     Statement filed pursuant to Section 2 hereof is required to be delivered
     under the Securities Act by any Participating Broker-Dealer who seeks to
     sell Exchange Notes during the Applicable Period, upon the occurrence of
     any event contemplated by Section 5(c)(v) or 5(c)(vi) hereof, as promptly
     as practicable prepare and (subject to Section 5(a) hereof and the
     penultimate paragraph of this Section 5) file with the Commission, at the
     sole expense of the Issuers, a supplement or post-effective amendment to
     the Registration Statement or a supplement to the related Prospectus or any
     document in-

<Page>

                                      -14-

     corporated or deemed to be incorporated therein by reference, or file any
     other required document so that, as thereafter delivered to the purchasers
     of the Registrable Notes being sold thereunder or to the purchasers of the
     Exchange Notes to whom such Prospectus will be delivered by a Participating
     Broker-Dealer, any such Prospectus will not contain an untrue statement of
     a material fact or omit to state a material fact required to be stated
     therein or necessary to make the statements therein, in the light of the
     circumstances under which they were made, not misleading.

            (l)     Prior to the effective date of the first Registration
     Statement relating to the Registrable Notes, (i) provide the Trustee with
     certificates for the Registrable Notes in a form eligible for deposit with
     The Depository Trust Company and (ii) obtain and provide a CUSIP number for
     the Registrable Notes.

            (m)     In connection with any underwritten offering of Registrable
     Notes pursuant to a Shelf Registration, enter into an underwriting
     agreement (on not more than one occasion) with terms as are customary in
     underwritten offerings of debt securities similar to the Notes, and take
     all such other actions as are reasonably requested by the managing
     underwriter or underwriters in order to expedite or facilitate the
     registration or the disposition of such Registrable Notes and, in such
     connection, (i) make such representations and warranties to, and covenants
     with, the underwriters with respect to the business of the Issuers and
     their subsidiaries, as then conducted (including any acquired business,
     properties or entity, if applicable), and the Registration Statement,
     Prospectus and documents, if any, incorporated or deemed to be incorporated
     by reference therein, in each case, as are customarily made by issuers to
     underwriters in underwritten offerings of debt securities similar to the
     Notes, and confirm the same in writing if and when requested; (ii) use
     their commercially reasonable efforts to obtain the written opinions of
     counsel to the Issuers and written updates thereof in form, scope and
     substance reasonably satisfactory to the managing underwriter or
     underwriters, addressed to the underwriters covering the matters
     customarily covered in opinions requested in underwritten offerings and
     such other matters as may be reasonably requested by the managing
     underwriter or underwriters; (iii) use their commercially reasonable
     efforts to obtain "cold comfort" letters and updates thereof in form, scope
     and substance reasonably satisfactory to the managing underwriter or
     underwriters from the independent certified public accountants of the
     Issuers (and, if necessary, any other independent certified public
     accountants of any subsidiary of the Company or of any business acquired by
     the Company for which financial statements and financial data are, or are
     required to be, included or incorporated by reference in the Registration
     Statement), addressed to each of the underwriters, such letters to be in
     customary form and covering matters of the type customarily covered in
     "cold comfort" letters in connection with underwritten offerings; and (iv)
     if an underwriting agreement is entered into, the same shall contain
     indemnification provisions and procedures no less favorable than those set
     forth in Section 7 hereof to the parties to be indemnified pursuant to
     Section 7 hereof with respect to the parties to be indemnified pursuant to
     such provisions and procedures (or such other provisions and procedures
     acceptable to Holders of a majority in aggregate principal amount of
     Registrable Notes covered by such Registration Statement and the managing
     underwriter or underwriters or agents) with respect to all parties to be
     indemnified pursuant to said Section; PROVIDED, HOWEVER, that the Issuers
     shall not be required to provide indemnification to any underwriter
     selected in accordance with the provisions of Section 9 hereof with respect
     to infor-

<Page>

                                      -15-

     mation relating to such underwriter furnished in writing to the Company by
     or on behalf of such underwriter expressly for inclusion in such
     Registration Statement. The above shall be done at each closing under such
     underwriting agreement, or as and to the extent required thereunder. The
     Issuers shall not be required pursuant to this Section 5(m) to enter into
     any such underwriting agreement more than once with respect to the
     Registrable Notes.

            (n)     If (1) a Shelf Registration is filed pursuant to Section 3
     hereof or (2) a Prospectus contained in the Exchange Offer Registration
     Statement filed pursuant to Section 2 hereof is required to be delivered
     under the Securities Act by any Participating Broker-Dealer who seeks to
     sell Exchange Notes during the Applicable Period, make available for
     inspection by any selling Holder of such Registrable Notes being sold or
     each such Participating Broker-Dealer, as the case may be, any underwriter
     participating in any such disposition of Registrable Notes, if any, and any
     attorney, accountant or other agent retained by any such selling Holder or
     each such Participating Broker-Dealer, as the case may be, or underwriter
     (collectively, the "INSPECTORS"), at the offices where normally kept,
     during reasonable business hours, all financial and other records,
     pertinent corporate documents and instruments of the Company and its
     subsidiaries (collectively, the "RECORDS") as shall be reasonably necessary
     to enable them to exercise any applicable due diligence responsibilities,
     and cause the officers, directors and employees of the Company and its
     subsidiaries to supply all information reasonably requested by any such
     Inspector in connection with such Registration Statement and Prospectus.
     Each Inspector shall agree in writing with the Company that it will keep
     the Records and all such information confidential and that it will not
     disclose, or use for any purposes other than in connection with its due
     diligence investigation, any Records or any such information that the
     Company determines, in good faith, to be confidential and that it notifies
     the Inspectors in writing are or is confidential unless (i) the disclosure
     of such Records or any such information is necessary to avoid or correct a
     misstatement or omission in such Registration Statement or Prospectus, (ii)
     the release of such Records or any such information is ordered pursuant to
     a subpoena or other order from a court of competent jurisdiction, (iii)
     disclosure of such information is necessary or advisable in the opinion of
     counsel for an Inspector in connection with any action, claim, suit or
     proceeding, directly or indirectly, involving such Inspector and arising
     out of, based upon, relating to, or involving this Agreement or the
     Purchase Agreement, or any transactions contemplated hereby or thereby or
     arising hereunder or thereunder, or (iv) the information in such Records or
     such information has been made generally available to the public other than
     as a result of a disclosure or failure to safeguard such information by an
     Inspector; PROVIDED, HOWEVER, that (i) each Inspector shall agree to use
     reasonable best efforts to provide notice to the Company of the potential
     disclosure of any information by such Inspector pursuant to clause (i),
     (ii) or (iii) of this sentence to permit the Issuers to obtain a protective
     order (or waive the provisions of this paragraph (n)) and (ii) each such
     Inspector shall take such actions as are reasonably necessary to protect
     the confidentiality of such information to the extent such action is
     otherwise not inconsistent with, an impairment of or in derogation of the
     rights and interests of the Holder or any Inspector.

            (o)     Provide an indenture trustee for the Registrable Notes or
     the Exchange Notes, as the case may be, and cause the Indenture or the
     trust indenture provided for in Section 2(a) hereof to be qualified under
     the TIA not later than the effective date of the Exchange Offer or the
     first Registration Statement relating to the Registrable Notes; and in
     connection therewith,

<Page>

                                      -16-

     cooperate with the trustee under any such indenture and the Holders of the
     Registrable Notes or Exchange Notes, as applicable, to effect such changes
     to such indenture as may be required for such indenture to be so qualified
     in accordance with the terms of the TIA; and execute, and use their
     commercially reasonable efforts to cause such trustee to execute, all
     documents as may be required to effect such changes, and all other forms
     and documents required to be filed with the Commission to enable such
     indenture to be so qualified in a timely manner.

            (p)     Comply with all applicable rules and regulations of the
     Commission and make generally available to the Company's securityholders
     earnings statements satisfying the provisions of Section 11(a) of the
     Securities Act and Rule 158 thereunder (or any similar rule promulgated
     under the Securities Act) no later than 45 days after the end of any
     12-month period (or 90 days after the end of any 12-month period if such
     period is a fiscal year) (i) commencing at the end of any fiscal quarter in
     which Registrable Notes or Exchange Notes are sold to underwriters in a
     firm commitment or best efforts underwritten offering and (ii) if not sold
     to underwriters in such an offering, commencing on the first day of the
     first fiscal quarter of the Company after the effective date of a
     Registration Statement, which statements shall cover said 12-month periods
     consistent with the requirements of Rule 158.

            (q)     Upon the request of a Holder, upon consummation of the
     Exchange Offer or a Private Exchange, use their commercially reasonable
     efforts to obtain an opinion of counsel to the Issuers, in a form customary
     for underwritten transactions, addressed to the Trustee for the benefit of
     all Holders of Registrable Notes participating in the Exchange Offer or the
     Private Exchange, as the case may be, that the Exchange Notes or Private
     Exchange Notes, as the case may be, and the related indenture constitute
     legal, valid and binding obligations of the Issuers, enforceable against
     the Issuers in accordance with its respective terms, subject to customary
     exceptions and qualifications.

            (r)     If the Exchange Offer or a Private Exchange is to be
     consummated, upon delivery of the Registrable Notes by Holders to the
     Company (or to such other Person as directed by the Company) in exchange
     for the Exchange Notes or the Private Exchange Notes, as the case may be,
     mark, or cause to be marked, on such Registrable Notes that such
     Registrable Notes are being cancelled in exchange for the Exchange Notes or
     the Private Exchange Notes, as the case may be; PROVIDED, HOWEVER, that in
     no event shall such Registrable Notes be marked as paid or otherwise
     satisfied.

            (s)     Cooperate with each seller of Registrable Notes covered by
     any Registration Statement and each underwriter, if any, participating in
     the disposition of such Registrable Notes and their respective counsel in
     connection with any filings required to be made with the National
     Association of Securities Dealers, Inc. (the "NASD").

            (t)     Use their commercially reasonable efforts to take all other
     steps reasonably necessary or advisable to effect the registration of the
     Exchange Notes and/or Registrable Notes covered by a Registration Statement
     contemplated hereby.

            The Company may require each seller of Registrable Notes or Exchange
Notes as to which any registration is being effected to furnish to the Company
such information regarding such

<Page>

                                      -17-

seller and the distribution of such Registrable Notes or Exchange Notes as the
Company may, from time to time, reasonably request. The Company may exclude from
such registration the Registrable Notes of any seller so long as such seller
fails to furnish such information within a reasonable time after receiving such
request and in the event of such an exclusion, the Issuers shall have no further
obligation under this Agreement (including, without limitation, the obligations
under Section 4) with respect to such seller or any subsequent Holder of such
Registrable Notes. Each seller as to which any Shelf Registration is being
effected agrees to furnish promptly to the Company all information required to
be disclosed in order to make any information previously furnished to the
Company by such seller not materially misleading.

            If any such Registration Statement refers to any Holder by name or
otherwise as the holder of any securities of the Company or the Guarantors, then
such Holder shall have the right to require (i) the insertion therein of
language, in form and substance reasonably satisfactory to such Holder, to the
effect that the holding by such Holder of such securities is not to be construed
as a recommendation by such Holder of the investment quality of the securities
covered thereby and that such holding does not imply that such Holder will
assist in meeting any future financial requirements of the Company or the
Guarantors, or (ii) in the event that such reference to such Holder by name or
otherwise is not required by the Securities Act or any similar federal statute
then in force, the deletion of the reference to such Holder in any amendment or
supplement to the applicable Registration Statement filed or prepared subsequent
to the time that such reference ceases to be required.

            Each Holder of Registrable Notes and each Participating
Broker-Dealer agrees by acquisition of such Registrable Notes or Exchange Notes
that, upon actual receipt of any notice from the Company (x) of the happening of
any event of the kind described in Section 5(c)(ii), 5(c)(iii), 5(c)(iv), or
5(c)(v) hereof, or (y) that the Board of Directors of the Company (the "BOARD OF
DIRECTORS") has resolved that the Company has a BONA FIDE business purpose for
doing so, then the Issuers may delay the filing or the effectiveness of the
Exchange Offer Registration Statement or the Shelf Registration Statement (if
not then filed or effective, as applicable) and shall not be required to
maintain the effectiveness thereof or amend or supplement the Exchange Offer
Registration Statement or the Shelf Registration, in all cases, for a period (a
"DELAY PERIOD") expiring upon the earlier to occur of (i) in the case of the
immediately preceding clause (x), such Holder's or Participating Broker-Dealer's
receipt of the copies of the supplemented or amended Prospectus contemplated by
Section 5(k) hereof or until it is advised in writing (the "ADVICE") by the
Company that the use of the applicable Prospectus may be resumed, and has
received copies of any amendments or supplements thereto or (ii) in the case of
the immediately preceding clause (y), the date which is the earlier of (A) the
date on which such business purpose ceases to interfere with the Issuer's
obligations to file or maintain the effectiveness of any such Registration
Statement pursuant to this Agreement or (B) 90 days after the Company notifies
the Holders of such good faith determination. There shall not be more than 90
days of Delay Periods during any 12-month period. Each of the Effectiveness
Period and the Applicable Period, if applicable, shall be extended by the number
of days during any Delay Period. Any Delay Period will not alter the obligations
of the Issuers to pay Additional Interest under the circumstances set forth in
Section 4 hereof with respect to any Registration Default. Each Holder of
Registrable Notes and each Participating Broker-Dealer agrees by acquisition of
such Registrable Notes or Exchange Notes to keep any notice and the existence of
any Delay Period confidential.

<Page>

                                      -18-

            In the event of any Delay Period pursuant to clause (y) of the
preceding paragraph, notice shall be given as soon as practicable after the
Board of Directors makes such a determination of the need for a Delay Period and
shall state, to the extent practicable, an estimate of the duration of such
Delay Period and shall advise the recipient thereof of the agreement of such
Holder provided in the next succeeding sentence. Each Holder and each
Participating Broker-Dealer, by his or its acceptance of any Registrable Note or
Exchange Note, agrees that during any Delay Period, each Holder or each
Participating Broker-Dealer, as the case may be, will discontinue disposition of
such Notes or Exchange Notes covered by such Registration Statement or
Prospectus or Exchange Notes to be sold by such Holder or Participating
Broker-Dealer, as the case may be.

     Section 6.  REGISTRATION EXPENSES

            All fees and expenses incident to the Issuer's performance of or
compliance with this Agreement (other than any underwriting discounts or
commissions) shall be borne by the Issuers, whether or not the Exchange Offer
Registration Statement or the Shelf Registration is filed or becomes effective
or the Exchange Offer is consummated, including, without limitation, (i) all
registration and filing fees (including, without limitation, fees and expenses
of compliance with state securities or "blue sky" laws (including, without
limitation, fees and disbursements of counsel in connection with "blue sky"
qualifications of the Registrable Notes or Exchange Notes and determination of
the eligibility of the Registrable Notes or Exchange Notes for investment under
the laws of such jurisdictions (x) where the holders of Registrable Notes are
located, in the case of an Exchange Offer, or (y) as provided in Section 5(h)
hereof, in the case of a Shelf Registration or in the case of Exchange Notes to
be sold by a Participating Broker-Dealer during the Applicable Period)), (ii)
printing expenses, including, without limitation, expenses of printing
certificates for Registrable Notes or Exchange Notes in a form eligible for
deposit with The Depository Trust Company and of printing prospectuses if the
printing of prospectuses is requested by the managing underwriter or
underwriters, if any, or by the Holders of a majority in aggregate principal
amount of the Registrable Notes included in any Registration Statement or in
respect of Exchange Notes to be sold by any Participating Broker-Dealer during
the Applicable Period, as the case may be, (iii) messenger, telephone and
delivery expenses, (iv) fees and disbursements of counsel for the Issuers and
reasonable fees and disbursements of one special counsel for all of the sellers
of Registrable Notes, selected by a majority of such sellers of Registrable
Notes, incurred in connection with such Registration Statement (exclusive of any
counsel retained pursuant to Section 7 hereof), (v) fees and disbursements of
all independent certified public accountants referred to in Section 5(m)(iii)
hereof (including, without limitation, the expenses of any special audit and
"cold comfort" letters required by or incident to such performance), (vi)
Securities Act liability insurance, if the Issuers desires such insurance, (vii)
fees and expenses of all other Persons retained by any of the Issuers, (viii)
internal expenses of the Issuers (including, without limitation, all salaries
and expenses of officers and employees of the Company performing legal or
accounting duties), (ix) the expense of any annual audit, (x) the fees and
expenses incurred in connection with the listing of the securities to be
registered on any securities exchange, and the obtaining of a rating of the
securities, in each case, if applicable, (xi) any required fees and expenses
incurred in connection with any filing required to be made with the NASD, and
(xii) the expenses relating to printing, word processing and distributing all
Registration Statements, underwriting agreements, indentures and any other
documents necessary in order for the Issuers to comply with their obligations
under this Agreement. Notwithstanding the foregoing or anything to the contrary
in this Agreement, each Holder shall pay all underwriting

<Page>

                                      -19-

discounts and commissions of any underwriters with respect to any Registrable
Notes sold by or on behalf of it.

     Section 7.  INDEMNIFICATION

            (a)     Each Issuer, jointly and severally, agrees to indemnify and
hold harmless each Holder of Registrable Notes and each Participating
Broker-Dealer selling Exchange Notes during the Applicable Period, each Person,
if any, who controls any such Person within the meaning of Section 15 of the
Securities Act or Section 20(a) of the Exchange Act, the agents, employees,
officers and directors of each Holder and each such Participating Broker-Dealer
and the agents, employees, officers and directors of any such controlling Person
(each, a "PARTICIPANT") from and against any and all losses, liabilities,
claims, damages and expenses (including, but not limited to, reasonable
attorneys' fees and any and all reasonable out-of-pocket expenses actually
incurred in investigating, preparing or defending against any litigation,
commenced or threatened, or any claim whatsoever, and any and all reasonable
amounts paid in settlement of any claim or litigation (in the manner set forth
in clause (c) below)) (collectively, "LOSSES") to which they or any of them may
become subject under the Securities Act, the Exchange Act or otherwise insofar
as such Losses (or actions in respect thereof) arise out of or are based upon
any untrue statement or alleged untrue statement of a material fact contained in
any Registration Statement (or any amendment thereto) or Prospectus (as amended
or supplemented if the Company shall have furnished any amendments or
supplements thereto) or any preliminary prospectus, or caused by, arising out of
or based upon any omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein, in
the case of the Prospectus, in the light of the circumstances under which they
were made, not misleading, PROVIDED, HOWEVER, that (i) the foregoing indemnity
shall not be available to any Participant insofar as such Losses are caused by
any untrue statement or omission or alleged untrue statement or omission made in
reliance upon and in conformity with information relating to such Participant
furnished to the Company in writing by or on behalf of such Participant
expressly for use therein, and (ii) that the foregoing indemnity with respect to
any preliminary prospectus shall not inure to the benefit of any Participant
from whom the Person asserting such Losses purchased Registrable Notes if (x) it
is established in the related proceeding that such Participant failed to send or
give a copy of the Prospectus (as amended or supplemented if such amendment or
supplement was furnished to such Participant prior to the written confirmation
of such sale) to such Person with or prior to the written confirmation of such
sale, if required by applicable law, and (y) the untrue statement or omission or
alleged untrue statement or omission was completely corrected in the Prospectus
(as amended or supplemented if amended or supplemented as aforesaid) and such
Prospectus does not contain any other untrue statement or omission or alleged
untrue statement or omission that was the subject matter of the related
proceeding. This indemnity agreement will be in addition to, but not in
duplication of, any liability that the Issuers may otherwise have to a
Participant, including, but not limited to, liability under this Agreement.

            (b)     Each Participant agrees, severally and not jointly, to
indemnify and hold harmless each Issuer, each Person, if any, who controls any
Issuer within the meaning of Section 15 of the Securities Act or Section 20(a)
of the Exchange Act, and each of their respective agents, employees, officers
and directors and the agents, employees, officers and directors of any such
controlling Person from and against any Losses to which they or any of them may
become subject under the Securities Act, the Exchange Act or otherwise insofar
as such Losses (or actions in respect thereof) arise

<Page>

                                      -20-

out of or are based upon any untrue statement or alleged untrue statement of a
material fact contained in any Registration Statement (or any amendment thereto)
or Prospectus (as amended or supplemented if the Company shall have furnished
any amendments or supplements thereto) or any preliminary prospectus, or caused
by, arising out of or based upon any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein, in the case of the Prospectus, in the light of the
circumstances under which they were made, not misleading, in each case to the
extent, but only to the extent, that any such Loss arises out of or is based
upon any untrue statement or alleged untrue statement or omission or alleged
omission made in reliance upon and in conformity with information relating to
such Participant furnished in writing to the Company by or on behalf of such
Participant expressly for use therein. This indemnity agreement shall be in
addition to, but not in duplication of, any liability that the Participants may
otherwise have to an Issuer, including, but not limited to, liability under this
Agreement.

            (c)     Promptly after receipt by an indemnified party under
subsection 7(a) or 7(b) above of notice of the commencement of any action, suit
or proceeding (collectively, an "ACTION"), such indemnified party shall, if a
claim in respect thereof is to be made against the indemnifying party under such
subsection, notify each party against whom indemnification is to be sought in
writing of the commencement of such action (but the failure so to notify an
indemnifying party shall not relieve such indemnifying party from any liability
that it may have under this Section 7 except to the extent that it has been
prejudiced in any material respect by such failure). In case any such action is
brought against any indemnified party, and it notifies an indemnifying party of
the commencement of such action, the indemnifying party will be entitled to
participate in such action, and to the extent it may elect by written notice
delivered to the indemnified party promptly after receiving the aforesaid notice
from such indemnified party, to assume the defense of such action with counsel
reasonably satisfactory to such indemnified party. Notwithstanding the
foregoing, the indemnified party or parties shall have the right to employ its
or their own counsel in any such action, but the reasonable fees and expenses of
such counsel shall be at the expense of such indemnified party or parties unless
(i) the employment of such counsel shall have been authorized in writing by the
indemnifying parties in connection with the defense of such action, (ii) the
indemnifying parties shall not have employed counsel to take charge of the
defense of such action within a reasonable time after notice of commencement of
the action, or (iii) the named parties to such action (including any impleaded
parties) include such indemnified party and the indemnifying party or parties
(or such indemnifying parties have assumed the defense of such action), and such
indemnified party or parties shall have reasonably concluded, after consultation
with counsel, that there may be defenses available to it or them that are
different from or additional to those available to one or all of the
indemnifying parties (in which case the indemnifying parties shall not have the
right to direct the defense of such action on behalf of the indemnified party or
parties), in any of which events such reasonable fees and expenses of counsel
shall be borne by the indemnifying parties. In no event shall the indemnifying
party be liable for the reasonable fees and expenses of more than one counsel
(together with appropriate local counsel) at any time for all indemnified
parties in connection with any one action or separate but substantially similar
or related actions arising in the same jurisdiction out of the same general
allegations or circumstances. Any such separate firm for the Participants shall
be designated in writing by Participants who sold a majority in interest of
Registrable Notes sold by all such Participants and shall be reasonably
acceptable to the Company and any such separate firm for the Issuers, their
affiliates, officers, directors, representatives, employees and agents and such
control Person of such Issuers shall be designated in writing by such Issuers
and shall be reasonably acceptable to the Holders. An indemnifying party shall
not be liable

<Page>

                                      -21-

for any settlement of any claim or action effected without its written consent,
which consent may not be unreasonably withheld. No indemnifying party shall,
without the prior written consent of the indemnified party, effect any
settlement of any pending or threatened proceeding in respect of which any
indemnified party is or could have been a party and indemnity could have been
sought hereunder by such indemnified party, unless such settlement includes an
unconditional release of such indemnified party from all liability on claims
that are the subject matter of such proceeding.

            (d)     In order to provide for contribution in circumstances in
which the indemnification provided for in this Section 7 is for any reason held
to be unavailable from the indemnifying party, or is insufficient to hold
harmless a party indemnified under this Section 7, each indemnifying party shall
contribute to the amount paid or payable by such indemnified party as a result
of such aggregate Losses (i) in such proportion as is appropriate to reflect the
relative benefits received by each indemnifying party, on the one hand, and each
indemnified party, on the other hand, from the sale of the Notes to the Initial
Purchasers or the resale of the Registrable Notes by such Holder, as applicable,
or (ii) if such allocation 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 each indemnified party, on
the one hand, and each indemnifying party, on the other hand, in connection with
the statements or omissions that resulted in such Losses, as well as any other
relevant equitable considerations. The relative benefits received by the
Issuers, on the one hand, and each Participant, on the other hand, shall be
deemed to be in the same proportion as (x) the total proceeds from the sale of
the Notes to the Initial Purchasers (net of discounts and commissions but before
deducting expenses) received by the Issuers are to (y) the total net profit
received by such Participant in connection with the sale of the Registrable
Notes. The relative fault of the parties 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 Issuers or such Participant and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission or alleged statement or omission.

            (e)     The parties agree that it would not be just and equitable if
contribution pursuant to this Section 7 were determined by PRO RATA allocation
or by any other method of allocation that does not take into account the
equitable considerations referred to above. Notwithstanding the provisions of
this Section 7, (i) in no case shall any Participant be required to contribute
any amount in excess of the amount by which the net proceeds received by such
Participant in connection with the sale of the Registrable Notes exceeds the
amount of any damages that such Participant has otherwise been required to pay
by reason of any untrue or alleged untrue statement or omission or alleged
omission and (ii) 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. Any party entitled to contribution will, promptly after
receipt of notice of commencement of any action against such party in respect of
which a claim for contribution may be made against another party or parties
under this Section 7, notify such party or parties from whom contribution may be
sought, but the omission to so notify such party or parties shall not relieve
the party or parties from whom contribution may be sought from any obligation it
or they may have under this Section 7 or otherwise, except to the extent that it
has been prejudiced in any material respect by such failure; PROVIDED, HOWEVER,
that no additional notice shall be required with respect to any

<Page>

                                      -22-

action for which notice has been given under this Section 7 for purposes of
indemnification. Anything in this Section to the contrary notwithstanding, no
party shall be liable for contribution with respect to any action or claim
settled without its written consent; PROVIDED, HOWEVER, that such written
consent was not unreasonably withheld.

     Section 8.  RULES 144 AND 144A

            The Issuers covenant that they will file the reports required, if
any, to be filed by them under the Securities Act and the Exchange Act and the
rules and regulations adopted by the Commission thereunder in a timely manner in
accordance with the requirements of the Securities Act and the Exchange Act and,
if at any time the Issuers are not required to file such reports, they will,
upon the request of any Holder or beneficial owner of Registrable Notes, make
available such information as required by, and so long as necessary to permit
sales of the Registrable Notes pursuant to, Rule 144A under the Securities Act.
The Issuers further covenant that for so long as any Registrable Notes remain
outstanding they will take such further action as any Holder of Registrable
Notes may reasonably request from time to time to enable such Holder to sell
Registrable Notes without registration under the Securities Act within the
limitation of the exemptions provided by (a) Rule 144(k) and Rule 144A under the
Securities Act, as such Rules may be amended from time to time, or (b) any
similar rule or regulation hereafter adopted by the Commission.

     Section 9.  UNDERWRITTEN REGISTRATIONS

            If any of the Registrable Notes covered by any Shelf Registration
are to be sold in an underwritten offering, the investment banker or investment
bankers and manager or managers that will manage the offering will be selected
by the Holders of a majority in aggregate principal amount of such Registrable
Notes included in such offering and shall be reasonably acceptable to the
Company.

            No Holder of Registrable Notes may participate in any underwritten
registration hereunder if such Holder does not (a) agree to sell such Holder's
Registrable Notes on the basis provided in any underwriting arrangements
approved by the Persons entitled hereunder to approve such arrangements and (b)
complete and execute all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents required under the terms of such
underwriting arrangements.

     Section 10.  MISCELLANEOUS

            (a)     NO INCONSISTENT AGREEMENTS. The Issuers have not, as of the
date hereof, and shall not, after the date of this Agreement, enter into any
agreement with respect to any of their securities that is inconsistent with the
rights granted to the Holders of Registrable Notes in this Agreement or
otherwise conflicts with the provisions hereof. The rights granted to the
Holders hereunder do not conflict with and are not inconsistent with, in any
material respect, the rights granted to the holders of any of the Issuers' other
issued and outstanding securities under any such agreements. The Issuers have
not entered and will not enter into any agreement with respect to any of their
securities which will grant to any Person piggy-back registration rights with
respect to any Registration Statement.

            (b)     ADJUSTMENTS AFFECTING REGISTRABLE NOTES. The Issuers shall
not, directly or indirectly, take any action with respect to the Registrable
Notes as a class that would adversely affect the ability of the Holders of
Registrable Notes to include such Registrable Notes in a registration undertaken
pursuant to this Agreement.

<Page>

                                      -23-

            (c)     AMENDMENTS AND WAIVERS. The provisions of this Agreement may
not be amended, modified or supplemented, and waivers or consents to departures
from the provisions hereof may not be given except pursuant to a written
agreement duly signed and delivered by (i) the Company (on behalf of all
Issuers) and (ii)(A) the Holders of not less than a majority in aggregate
principal amount of the then outstanding Registrable Notes and (B) in
circumstances that would adversely affect the Participating Broker-Dealers, the
Participating Broker-Dealers holding not less than a majority in aggregate
principal amount of the Exchange Notes held by all Participating Broker-Dealers;
PROVIDED, HOWEVER, that Section 7 and this Section 10(c) may not be amended,
modified or supplemented except pursuant to a written agreement duly signed and
delivered by the Issuers and each Holder and each Participating Broker-Dealer
(including any Person who was a Holder or Participating Broker-Dealer of
Registrable Notes or Exchange Notes, as the case may be, disposed of pursuant to
any Registration Statement) affected by any such amendment, modification, waiver
or supplement. Notwithstanding the foregoing, a waiver or consent to depart from
the provisions hereof with respect to a matter that relates exclusively to the
rights of Holders of Registrable Notes whose securities are being sold pursuant
to a Registration Statement and that does not directly or indirectly affect,
impair, limit or compromise the rights of other Holders of Registrable Notes may
be given by Holders of at least a majority in aggregate principal amount of the
Registrable Notes being sold pursuant to such Registration Statement.

            (d)     NOTICES. All notices and other communications (including,
without limitation, any notices or other communications to the Trustee) provided
for or permitted hereunder shall be made in writing by hand-delivery, registered
first-class mail, next-day air courier or telecopier:

            (i)     if to a Holder of the Registrable Notes or any Participating
     Broker-Dealer, at the most current address of such Holder or Participating
     Broker-Dealer, as the case may be, set forth on the records of the
     registrar under the Indenture.

            (ii)    if to any Issuer, to it

                             c/o Inverness Medical Innovations, Inc.
                             51 Sawyer Road, Suite 200
                             Waltham, MA  02453
                             Fax Number: (781) 647-3939
                             Attention: Chief Financial Officer

            (iii)   if to the Initial Purchasers, at the address as follows:

<Page>

                                      -24-

                             UBS Securities LLC
                             299 Park Avenue
                             New York, NY 10171
                             Fax Number: (203) 719-1075
                             Attention: Syndicate Department

                             Merrill Lynch, Pierce, Fenner & Smith Incorporated
                             4 World Financial Center
                             New York, New York  10171
                             Fax Number: (212) 449-7171
                             Attention: James D. Forbes

            All such notices and communications shall be deemed to have been
duly given: when delivered by hand, if personally delivered; five Business Days
after being deposited in the mail, postage prepaid, if mailed; when receipt is
acknowledged by the recipient's telecopier machine, if telecopied; and on the
next Business Day, if timely delivered to an air courier guaranteeing overnight
delivery.

            Copies of all such notices, demands or other communications shall be
concurrently delivered by the Person giving the same to the Trustee at the
address and in the manner specified in such Indenture.

            (e)     GUARANTORS. So long as any Registrable Notes remain
outstanding, the Issuers shall cause each Person that becomes a guarantor of the
Notes under the Indenture to execute and deliver a counterpart to this Agreement
which subjects such Person to the provisions of this Agreement as a Guarantor.
Each of the Guarantors agrees to join the Issuers in all of their undertakings
hereunder to effect the Exchange Offer for the Exchange Notes and the filing of
any Shelf Registration Statement required hereunder.

            (f)     SUCCESSORS AND ASSIGNS. This Agreement shall inure to the
benefit of and be binding upon the successors and assigns of each of the parties
hereto, the Holders and the Participating Broker-Dealers; PROVIDED, HOWEVER,
that this Agreement shall not inure to the benefit of or be binding upon a
successor or assign of a Holder unless and to the extent such successor or
assign holds Registrable Notes.

            (g)     COUNTERPARTS. This Agreement may be executed in any number
of counterparts and by the parties hereto in separate counterparts, each of
which when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

            (h)     HEADINGS. The headings in this Agreement are for convenience
of reference only and shall not limit or otherwise affect the meaning hereof.

            (i)     GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS APPLIED TO
CONTRACTS MADE AND PERFORMED WHOLLY WITHIN

<Page>

                                      -25-

THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

            (j)     SEVERABILITY. If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction to be
invalid, illegal, void or unenforceable, the remainder of the terms, provisions,
covenants and restrictions set forth herein shall remain in full force and
effect and shall in no way be affected, impaired or invalidated, and the parties
hereto shall use their reasonable best efforts to find and employ an alternative
means to achieve the same or substantially the same result as that contemplated
by such term, provision, covenant or restriction. It is hereby stipulated and
declared to be the intention of the parties that they would have executed the
remaining terms, provisions, covenants and restrictions without including any of
such that may be hereafter declared invalid, illegal, void or unenforceable.

            (k)     SECURITIES HELD BY THE ISSUERS OR THEIR AFFILIATES. Whenever
the consent or approval of Holders of a specified percentage of Registrable
Notes is required hereunder, Registrable Notes held by the Issuers or any of
their affiliates (as such term is defined in Rule 405 under the Securities Act)
shall not be deemed outstanding and shall not be counted in determining whether
such consent or approval was given by the Holders of such required percentage.

            (l)     THIRD-PARTY BENEFICIARIES. Holders and beneficial owners of
Registrable Notes and Participating Broker-Dealers are intended third-party
beneficiaries of this Agreement, and this Agreement may be enforced by such
Persons. No other Person is intended to be, or shall be construed as, a
third-party beneficiary of this Agreement.

            (m)     ATTORNEYS' FEES. As between the parties to this Agreement,
in any action or proceeding brought to enforce any provision of this Agreement,
or where any provision hereof is validly asserted as a defense, the successful
party shall be entitled to recover reasonable attorneys' fees actually incurred
in addition to its reasonable costs and expenses and any other available remedy.

            (n)     ENTIRE AGREEMENT. This Agreement, together with the Purchase
Agreement and the Indenture, is intended by the parties as a final and exclusive
statement of the agreement and understanding of the parties hereto in respect of
the subject matter contained herein and therein and any and all prior oral or
written agreements, representations, or warranties, contracts, understandings,
correspondence, conversations and memoranda between the Holders on the one hand
and the Issuers on the other, or between or among any agents, representatives,
parents, subsidiaries, affiliates, predecessors in interest or successors in
interest with respect to the subject matter hereof and thereof are merged herein
and replaced hereby.

<Page>

            IN WITNESS WHEREOF, the parties have executed this Agreement as of
the date first written above.

                                INVERNESS MEDICAL INNOVATIONS, INC.


                                By:  /s/ Anthony J. Bernardo
                                     ---------------------------------
                                     Name: Anthony J. Bernardo
                                     Title: Vice President

                                APPLIED BIOTECH, INC.
                                FOREFRONT DIAGNOSTICS, INC.
                                INNOVATIONS RESEARCH, LLC
                                INVERNESS MEDICAL INTERNATIONAL
                                 HOLDING CORP.
                                INVERNESS MEDICAL INTERNATIONAL
                                 HOLDING CORP. II
                                INVERNESS MEDICAL, INC.
                                MORPHEUS ACQUISITION CORP.
                                OSTEX INTERNATIONAL, INC.
                                UNIPATH DIAGNOSTICS, INC.
                                UNIPATH ONLINE, INC.
                                WAMPOLE LABORATORIES, LLC
                                 as Guarantors

                                 By: /s/ Anthony J. Bernardo
                                    --------------------------------------------
                                    Name:  Anthony J. Bernardo
                                    Title: President, President, Manager,
                                           President, President, President,
                                           President, President, Vice President,
                                           President, Vice President,
                                           respectively


                                SELFCARE TECHNOLOGY, INC.
                                 as a Guarantor


                                By: /s/ Duane L. James
                                    --------------------------------------------
                                    Name: Duane L. James
                                          Title:  Treasurer

                                       S-1
<Page>

Confirmed and Accepted as of
the date first above written:

UBS SECURITIES LLC


By:   /s/ Aradhana Sarin
      ------------------------------
      Name: Aradhana Sarin, MD
      Title:  Director

By:   /s/ Anthony Munoz
      ------------------------------
      Name: Anthony Munoz
      Title:  Associate Director


MERRILL LYNCH, PIERCE, FENNER
 & SMITH INCORPORATED


By:   /s/ Sarang R. Gadkari
      ------------------------------
      Name: Sarang R. Gadkari
      Title: Director

                                       S-2