FUISZ TECHNOLOGIES LTD
DEFS14A, 1999-10-15
PHARMACEUTICAL PREPARATIONS
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<PAGE>
                                  SCHEDULE 14A
                                 (RULE 14A-101)

                    INFORMATION REQUIRED IN PROXY STATEMENT

                            SCHEDULE 14A INFORMATION

                  Proxy Statement Pursuant to Section 14(a) of
                      the Securities Exchange Act of 1934

    Filed by the Registrant /X/
    Filed by a Party other than the Registrant / /

    Check the appropriate box:
    / /  Preliminary Proxy Statement
    /X/  Definitive Proxy Statement
    / /  Definitive Additional Materials
    / /  Soliciting Material Pursuant to Section 240.14a-11(c) or Section
         240.14a-12

                                     FUISZ TECHNOLOGIES LTD.
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)

                                     FUISZ TECHNOLOGIES LTD.
- --------------------------------------------------------------------------------
                   (Name of Person(s) Filing Proxy Statement)

Payment of Filing Fee (check the appropriate box):

/X/  No filing fee required.
/ /  Fee computed on table below per Exchange Act Rules 14a-6(i)(1)
     and 0-11.
     (1) Title of each class of securities to which transaction applies:
         -----------------------------------------------------------------------
     (2) Aggregate number of securities to which transaction applies:
         -----------------------------------------------------------------------
     (3) Per unit price or other underlying value of transaction computed
         pursuant to Exchange Act Rule 0-11:*
         -----------------------------------------------------------------------
     (4) Proposed maximum aggregate value of transaction:
         -----------------------------------------------------------------------
     (5) Total fee paid:
         -----------------------------------------------------------------------

- ------------------------
*Set forth the amount on which the filing is calculated and state how it was
 determined.
/ /  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2) and identify the filing for which the offsetting fee was paid
     previously. Identify the previous filing by registration statement number,
     or the Form or Schedule and the date of its filing.
     (1) Amount previously paid:
         -----------------------------------------------------------------------
     (2) Form, Schedule or Registration Statement No.:
         -----------------------------------------------------------------------
     (3) Filing Party:
         -----------------------------------------------------------------------
     (4) Date Filed:
         -----------------------------------------------------------------------
Notes:
<PAGE>
                                     [LOGO]

                            FUISZ TECHNOLOGIES LTD.
                         14555 Avion Parkway, Suite 250
                           Chantilly, Virginia 20151

                                                                October 15, 1999

Dear Stockholder:

    You are cordially invited to attend a special meeting of the stockholders of
Fuisz Technologies Ltd. to be held at the law offices of Gibson, Dunn & Crutcher
LLP, 1050 Connecticut Ave., N.W., Third Floor, Washington, D.C. 20036, on
November 12, 1999, at 9:00 a.m., local time.

    At this important meeting, you will be asked to adopt and approve a merger
between Fuisz and Biovail Corporation International. The merger agreement was
executed July 25, 1999, and provides that Fuisz will become a wholly-owned
subsidiary of Biovail if certain conditions are met, including the approval of
Fuisz's stockholders. Upon consummation of the merger, stockholders of Fuisz
will be entitled to receive a fraction of a Biovail common share for each share
of Fuisz common stock held by them, based on an exchange ratio. The exchange
ratio will be calculated based on the average of the daily closing prices of
Biovail common shares for the fifteen trading days ending on the third business
day before the day the merger occurs. If that average price is less than $45.00,
then the value (based on that average price) of the Biovail fractional share
would be less than $7.00; if that average price is between $45.00 and $58.625,
then the value of the Biovail fractional share would be $7.00; if that average
price is between $58.625 and $62.810, then the value of the Biovail fractional
share would be between $7.00 and $7.50; and if that average price is more than
$62.810, then the value of the Biovail fractional share would be $7.50.

    Your board of directors has approved the merger and the merger agreement and
determined that the terms of the merger are fair to and in the best interests of
the stockholders of Fuisz. The board recommends that you adopt the merger
agreement and approve the merger at the special meeting so that the merger may
be completed.

    This event presents an important decision for you as a Fuisz stockholder.
Therefore, we request that you carefully read the attached materials.

    Your participation in this special meeting, either by proxy or in person, is
important. If you do not vote then it will have the same effect as if you had
voted against the merger agreement and the merger. Even if you plan to attend
the meeting, please sign, date and return the enclosed proxy promptly. At the
meeting, if you desire to vote in person, you may withdraw your proxy.

                                          Sincerely,

                                          /s/ RICHARD D. FUISZ, M.D.

                                          RICHARD D. FUISZ, M.D.
                                          CHAIRMAN OF THE BOARD

                             YOUR VOTE IS IMPORTANT
           PLEASE COMPLETE, SIGN, DATE AND RETURN YOUR PROXY PROMPTLY
<PAGE>
                            FUISZ TECHNOLOGIES LTD.

                         14555 AVION PARKWAY, SUITE 250
                           CHANTILLY, VIRGINIA 20151

                            ------------------------

                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                            ------------------------

TO THE HOLDERS OF COMMON STOCK:

    A special meeting of the stockholders of Fuisz Technologies, Ltd., a
Delaware corporation, will be held at the law offices of Gibson, Dunn & Crutcher
LLP, 1050 Connecticut Ave., N.W., Third Floor, Washington, D.C. 20036, on
November 12 , 1999, at 9:00 a.m., local time, for the following purposes:

    1.  To consider and vote upon a proposal to approve and adopt the Agreement
       and Plan of Merger dated as of July 25, 1999 by and among Fuisz, Biovail
       Corporation International, an Ontario, Canada corporation, and ABCI
       Acquisition Sub. Corporation, a Delaware company and wholly-owned
       subsidiary of Biovail, which provides for Biovail to acquire by the
       merger the approximately 51% of the shares of Fuisz common stock that it
       does not already own. In the merger, each outstanding share of Fuisz
       common stock not owned by Biovail will be converted into the right to
       receive a fraction of a share of Biovail common shares based on a formula
       set forth in the Agreement and Plan of Merger.

    2.  To transact any other business that may properly come before the special
       meeting or any adjournment or postponement of the special meeting.

    Any matter listed above may be considered at the special meeting or at any
adjournment or postponement of the special meeting.

    Holders of common stock of record on our books on October 8, 1999 will be
entitled to vote on all matters which may come before the special meeting or any
adjournment or postponement of the special meeting. Approval of the merger and
the merger agreement requires the affirmative vote of a majority of the Fuisz
shares outstanding and entitled to vote thereon. Currently, Biovail owns, either
directly or indirectly, 10,795,054 shares of Fuisz common stock, or
approximately 49% of the outstanding common stock of Fuisz. Under Delaware law,
stockholders of Fuisz will not be entitled to appraisal rights in connection
with the merger.

    YOUR BOARD OF DIRECTORS HAS APPROVED THE MERGER AND THE MERGER AGREEMENT AND
DETERMINED THAT THE TERMS OF THE MERGER ARE FAIR TO AND IN THE BEST INTERESTS OF
THE STOCKHOLDERS OF FUISZ. THE BOARD RECOMMENDS THAT YOU VOTE FOR THE PROPOSAL
TO ADOPT THE MERGER AGREEMENT AND APPROVE THE MERGER AT THE SPECIAL MEETING.

    WHETHER OR NOT YOU PLAN TO ATTEND THE SPECIAL MEETING, PLEASE COMPLETE, SIGN
AND DATE THE ENCLOSED PROXY AND RETURN IT PROMPTLY IN THE ENCLOSED ENVELOPE. IT
IS IMPORTANT THAT YOUR INTERESTS BE REPRESENTED AT THE MEETING.

    IF THE MERGER IS CONSUMMATED, YOU WILL BE SENT INSTRUCTIONS REGARDING THE
EXCHANGE OF YOUR CERTIFICATES FOR CERTIFICATES EVIDENCING BIOVAIL COMMON SHARES.
PLEASE DO NOT SEND YOUR SHARE CERTIFICATES WITH THE ENCLOSED PROXY CARD.

                                          /s/ STEPHEN H. WILLARD

                                          STEPHEN H. WILLARD,
                                          SECRETARY

Chantilly, Virginia
October 15, 1999
<PAGE>
                           PROXY STATEMENT-PROSPECTUS

                            ------------------------

                       BIOVAIL CORPORATION INTERNATIONAL

                                   PROSPECTUS

                                ----------------

                            FUISZ TECHNOLOGIES LTD.

                                PROXY STATEMENT

                     FOR A SPECIAL MEETING OF STOCKHOLDERS
                          TO BE HELD NOVEMBER 12, 1999

                             ---------------------

    The boards of directors of Biovail Corporation International and Fuisz
Technologies Ltd. have agreed to the merger of a wholly-owned subsidiary of
Biovail into Fuisz. Fuisz will become a wholly- owned subsidiary of Biovail
provided that the conditions to the merger are met, including the approval of
Fuisz's stockholders, and the merger is consummated. This document gives you
detailed information about the proposed merger. We encourage you to read this
entire document carefully. Please see the section entitled "RISK FACTORS"
beginning on page 15 for discussion of potential risks involved in the merger
and related transactions. Please see "WHERE YOU CAN FIND MORE INFORMATION" on
page 84 for additional information about Biovail and Fuisz on file with the SEC.

    This proxy statement-prospectus is first being mailed to Fuisz stockholders
on or about October 15, 1999.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED THE BIOVAIL COMMON SHARES TO BE ISSUED
UNDER THIS PROXY STATEMENT-PROSPECTUS OR DETERMINED IF THIS PROXY
STATEMENT-PROSPECTUS IS ACCURATE OR ADEQUATE. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.

           THIS PROXY STATEMENT-PROSPECTUS IS DATED OCTOBER 15, 1999.
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
SUMMARY....................................................................................................          1
The Merger.................................................................................................          1
  What You Will Receive in the Merger......................................................................          1
The Companies..............................................................................................          1
The Special Meeting........................................................................................          2
  Time and Place...........................................................................................          2
  Matters to Be Considered.................................................................................          2
  Record Date; Shares Entitled to Vote.....................................................................          2
  Required Vote for the Merger.............................................................................          2
  Revocation of Proxies....................................................................................          3
  Reasons for the Merger...................................................................................          3
  Recommendation of the Fuisz Board of Directors...........................................................          4
  Opinion of Fuisz's Financial Advisor.....................................................................          4
  Interests of Certain Persons in the Merger...............................................................          4
  Anticipated Accounting Treatment.........................................................................          4
  Certain United States and Canadian Federal Income Tax Considerations.....................................          5
  Appraisal Rights.........................................................................................          5
  Conditions to the Merger.................................................................................          5
  Effective Time of the Merger.............................................................................          5
  Termination of the Merger Agreement......................................................................          5
  Governmental and Regulatory Matters......................................................................          6
  Comparative Rights of Shareholders.......................................................................          6
Comparative Per Share Information..........................................................................          7
Market Price Information...................................................................................          8
Dividend Policy............................................................................................          8
Currency Translation.......................................................................................          8
Summary Historical Consolidated Financial Information......................................................          9
  Biovail Selected Historical Consolidated Financial Information...........................................         10
  Fuisz Selected Historical Consolidated Financial Information.............................................         11
Summary Unaudited Pro Forma Combined Financial Information.................................................         12
Cautionary Statement Concerning Forward-Looking Statements.................................................         14
RISK FACTORS...............................................................................................         15
  Risk Factors Relating to Biovail.........................................................................         15
  Risk Factors Relating to Fuisz...........................................................................         19
RECENT DEVELOPMENTS........................................................................................         24
THE SPECIAL MEETING........................................................................................         26
  Time and Place...........................................................................................         26
  Matters to Be Considered.................................................................................         26
  Record Date; Voting at the Special Meeting...............................................................         26
  Quorum...................................................................................................         26
  Voting and Revocation of Proxies.........................................................................         26
  Solicitation of Proxies..................................................................................         27
  Expenses.................................................................................................         27
  Surrender of Certificates................................................................................         27
THE MERGER.................................................................................................         28
  Background of the Merger.................................................................................         28
  Fuisz's Reasons for the Merger; Recommendation of the Fuisz Board of Directors...........................         30
  Biovail's Reasons for the Merger.........................................................................         32
</TABLE>

                                       i
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
  Opinion of Financial Advisor to Fuisz....................................................................         33
  Interests of Certain Persons in the Merger...............................................................         41
  Absence of Appraisal Rights..............................................................................         42
  Governmental Regulation..................................................................................         42
  Anticipated Accounting Treatment.........................................................................         43
THE MERGER AGREEMENT.......................................................................................         44
  The Merger and Its Effective Time........................................................................         44
  What Fuisz Stockholders Will Receive.....................................................................         44
  Manner of Converting Fuisz Common Stock..................................................................         45
  No Fractional Biovail Common Shares......................................................................         46
  Treatment of Fuisz Stock Options.........................................................................         46
  Indemnification and Insurance............................................................................         46
  Representations and Warranties...........................................................................         46
  Conduct of Business of Fuisz Prior to the Effective Time.................................................         47
  No Solicitation..........................................................................................         47
  Conditions to the Merger.................................................................................         49
  Termination; Effect of Termination.......................................................................         50
  Amendment................................................................................................         52
  Waivers..................................................................................................         52
CERTAIN UNITED STATES AND CANADIAN INCOME TAX CONSIDERATIONS...............................................         53
  Certain U. S. Federal Income Tax Considerations..........................................................         53
  Certain U. S. Federal Income Tax Consequences of the Merger..............................................         53
  Certain U. S. Federal Income Tax Consequences of Ownership and Disposition of Biovail Common Shares......         54
  Canadian Federal Income Tax Consequences.................................................................         55
UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION.........................................................         57
  Biovail Corporation International Pro Forma Combined Balance Sheet as at June 30, 1999...................         58
  Biovail Corporation International Pro Forma Combined Statement of Operations for the six months ended
    June 30, 1999..........................................................................................         59
  Biovail Corporation International Pro Forma Combined Statement of Operations for the year ended December
    31, 1998...............................................................................................         60
DESCRIPTION OF BIOVAIL CAPITAL STOCK.......................................................................         68
  General..................................................................................................         68
  Capital Stock............................................................................................         68
  Class A Special Shares...................................................................................         69
COMPARATIVE RIGHTS OF FUISZ STOCKHOLDERS AND BIOVAIL
  SHAREHOLDERS.............................................................................................         70
  Comparative Rights of Fuisz Stockholders and Biovail Shareholders........................................         70
  Authorized Share Capital.................................................................................         70
  Shareholder Voting Rights................................................................................         70
  Special Meeting of Shareholders..........................................................................         71
  Proposals of Shareholders................................................................................         71
  Consent of Shareholders in Lieu of Meeting...............................................................         72
  Inspection Rights........................................................................................         73
  Pre-emptive Rights.......................................................................................         73
  Dividends and Repurchases of Shares......................................................................         73
  Authority to Issue Shares................................................................................         74
  Amendments to Governing Instruments......................................................................         74
  Director Qualifications..................................................................................         75
  Classification of the Board of Directors.................................................................         75
</TABLE>

                                       ii
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
  Removal of Directors.....................................................................................         75
  Vacancies on the Board of Directors......................................................................         76
  Fiduciary Duties of Directors............................................................................         76
  Conflict of Interest of Directors and Officers...........................................................         77
  Indemnification of Directors, Officers and Others........................................................         77
  Director Liability.......................................................................................         78
  Shareholders' Suits......................................................................................         78
  Oppression Remedy........................................................................................         79
  Reorganizations, Mergers, Extraordinary Transactions.....................................................         79
  Dissent and Appraisal Rights.............................................................................         80
  Compulsory Acquisition...................................................................................         80
  Anti-Takeover Provisions; Interested Stockholder Transactions............................................         81
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS............................................................         82
SUBMISSION OF SHAREHOLDER PROPOSALS........................................................................         82
CERTAIN LEGAL MATTERS......................................................................................         83
EXPERTS....................................................................................................         83
ENFORCEABILITY OF CIVIL LIABILITIES UNDER UNITED STATES FEDERAL SECURITIES LAWS............................         83
WHERE YOU CAN FIND MORE INFORMATION........................................................................         84
INCORPORATION OF CERTAIN INFORMATION BY REFERENCE..........................................................         84
  Biovail SEC Filings......................................................................................         84
  Fuisz SEC Filings........................................................................................         84

Annex A--Agreement and Plan of Merger......................................................................        A-1
Annex B--Opinion of Warburg Dillon Read LLC................................................................        B-1
</TABLE>

                                      iii
<PAGE>
                                    SUMMARY

    THE FOLLOWING IS A SUMMARY OF SELECTED INFORMATION FROM THIS PROXY
STATEMENT-PROSPECTUS AND MAY NOT CONTAIN ALL OF THE INFORMATION THAT IS
IMPORTANT TO YOU. TO UNDERSTAND THE MERGER FULLY AND FOR A MORE COMPLETE
DESCRIPTION OF THE TERMS OF THE MERGER, YOU SHOULD CAREFULLY READ THIS ENTIRE
DOCUMENT.

                                   THE MERGER

    We are asking you to vote for a proposal that Fuisz and Biovail merge, that
Fuisz become a wholly-owned subsidiary of Biovail and Fuisz stockholders become
shareholders of Biovail. The merger agreement setting forth all of the terms of
this proposed merger is attached as Annex A to this proxy statement-prospectus.
As provided for in the merger agreement, a subsidiary of Biovail commenced a
tender offer to purchase up to, and has purchased, 6,585,225 of the outstanding
shares of Fuisz common stock at a purchase price of $7.00 per share. As a result
of the tender offer and other stock purchases, Biovail and its subsidiary hold
10,795,054 shares of Fuisz common stock or approximately 49% of the shares of
Fuisz common stock that are entitled to vote on the merger. Biovail has agreed
to vote or cause those shares to be voted in favor of the merger.

WHAT YOU WILL RECEIVE IN THE MERGER

    When the merger occurs, each of your shares of Fuisz common stock will
automatically be converted into a right to receive a fraction of a Biovail
common share, based on an exchange ratio calculated at that time. The exchange
ratio will be calculated based on the average of the daily closing prices of
Biovail common shares for the fifteen trading days ending on the third business
day before the day the merger occurs, as follows:

    - If that average price is less than $45.00, the exchange ratio will equal
      0.1556.

    - If that average price is equal to or is greater than $45.00 but is less
      than or equal to $58.625, the exchange ratio will equal a fraction
      determined by dividing $7.00 by that average price.

    - If that average price is greater than $58.625 but less than or equal to
      $62.81, the exchange ratio will equal 0.1194.

    - If that average price is greater than $62.81, the exchange ratio will
      equal a fraction determined by dividing $7.50 by that average price.

    The effect of the exchange ratios is indicated in the table below. If the
average closing price of Biovail's common shares over those fifteen trading days
is within the range indicated in the left column, the value (based on that
average closing price) of the fractional Biovail common share you will receive
for each share of Fuisz common stock is set forth in the right column:

<TABLE>
<CAPTION>
        BIOVAIL AVERAGE             VALUE OF BIOVAIL
         CLOSING PRICE              FRACTIONAL SHARE
- --------------------------------  --------------------
<S>                               <C>
        less than $45.00            less than $7.00
   between $45.00 and $58.625            $7.00
  between $58.625 and $62.810       between $7.00 &
                                         $7.50
       more than $62.810                 $7.50
</TABLE>

    Because of the average price calculation, at the time you vote on the merger
you may not know the number of Biovail common shares that you will receive in
the merger.

    The average of the daily closing prices of Biovail common shares for the
fifteen trading days ending October 13, 1999 is $51.67. You may obtain an
up-to-date average daily price by calling 1-800-322-2885.

    You will have to surrender your Fuisz common stock certificates to receive
new certificates representing Biovail common shares. You should not do this,
however, until you receive written instructions after the merger has occurred.

    See "THE MERGER AGREEMENT-- What Fuisz Stockholders Will Receive."

                                 THE COMPANIES

BIOVAIL CORPORATION INTERNATIONAL
2488 Dunwin Drive
Mississauga, Ontario
Canada, L5L 1J9
Telephone: (416) 285-6000

<PAGE>
    Biovail is a global integrated pharmaceutical company specializing in the
development of advanced oral controlled-release drugs.

    Biovail's proprietary technologies are used in formulations which:

    - improve upon conventional dosage forms of existing products by providing
      the therapeutic benefits of controlled-release drug delivery or

    - are generically equivalent to existing once-daily branded products.

    In both instances, Biovail's products provide significant cost advantages.

    Biovail develops controlled-release formulations which are manufactured by
it or by others under license for the branded and generic market segments.
Biovail does not engage in basic research to discover new chemical entities.
Biovail is based in Ontario, Canada and its common shares are listed and traded
on the New York Stock Exchange and the Toronto Stock Exchange under the symbol
"BVF." On October 13, 1999, its closing price was $50.94 per common share.

FUISZ TECHNOLOGIES LTD.
14555 Avion Parkway
Suite 250
Chantilly, Virginia 20151
Telephone: (703) 995-2400

    Fuisz is an international company that is engaged in the development,
manufacture, and commercialization of a wide range of drug delivery,
nutraceutical, and food ingredient products utilizing its proprietary
CEFORM-TM-, Shearform-TM- and other drug delivery technologies. Fuisz has
research and manufacturing facilities in Virginia, as well as in Dublin and
Clonmel, Ireland. Fuisz has been publicly traded since December 1995 and is
listed under the "FUSE" ticker symbol on the Nasdaq National Market. On October
13, 1999, its closing price was $6.50 per share of common stock.

                              THE SPECIAL MEETING

TIME AND PLACE

    The special meeting will be held at the law offices of Gibson, Dunn &
Crutcher LLP, 1050 Connecticut Ave., N.W., Third Floor, Washington, D.C. 20036,
on November 12 , 1999, at 9:00 a.m., local time, to consider and vote on the
acquisition of Fuisz by Biovail. See "THE SPECIAL MEETING--Time and Place."

MATTERS TO BE CONSIDERED

    At the special meeting, Fuisz stockholders will consider and vote upon a
proposal to adopt the merger agreement and to approve the merger. See "THE
SPECIAL MEETING-- Matters to Be Considered."

RECORD DATE; SHARES ENTITLED TO VOTE

    Only Fuisz stockholders of record at the close of business on October 8,
1999 are entitled to notice of and to vote at the special meeting. On the record
date, there were 22,341,498 shares of Fuisz common stock entitled to vote held
by approximately 227 holders of record. Each holder of record of Fuisz common
stock on the record date is entitled to one vote per share of Fuisz common
stock, exercisable in person or by proxy, on each matter submitted at the
special meeting. See "THE SPECIAL MEETING-- Record Date; Voting at the Special
Meeting."

REQUIRED VOTE FOR THE MERGER

    The acquisition of Fuisz by Biovail requires the affirmative vote of the
holders of a majority of the shares of Fuisz common stock entitled to vote, or
approximately 11,170,750 shares. As of October 8, 1999, the directors and
executive officers of Fuisz, and their respective affiliates, controlled
approximately 1% of the outstanding shares of Fuisz entitled to vote. As of
October 8, 1999, Biovail owned, either directly or indirectly, 10,795,054 shares
of Fuisz common stock, or approximately 49% of the shares of Fuisz common stock
entitled to vote on the merger, and has agreed to vote those shares in favor of
the merger. If you choose not to vote on the merger, this will have the effect
of a vote against the merger. Brokers who hold Fuisz common

                                       2
<PAGE>
stock as nominees will not have discretionary authority to vote those shares
without instructions from the beneficial owners of those shares. Any votes which
are not cast by a nominee-broker will also have the effect of a vote against the
merger. See "THE SPECIAL MEETING--Quorum."

REVOCATION OF PROXIES

    Any proxy you give may be revoked by filing a later-dated proxy relating to
the same shares of Fuisz common stock or a written notice of revocation bearing
a date later than the date of the proxy with the secretary of Fuisz before the
vote at the special meeting. You may do this by telegram or facsimile. You may
also revoke your proxy by attending the special meeting and voting in person.
Stockholders of Fuisz who hold their shares of Fuisz common stock through a
bank, brokerage firm or other nominee accounts may revoke or change their
earlier votes by instructing the nominee or obtaining and voting a proxy issued
by the nominee. See "THE SPECIAL MEETING--Voting and Revocation of Proxies."

REASONS FOR THE MERGER

    FUISZ.  In reaching its conclusion to enter into the merger agreement and to
recommend to Fuisz's stockholders to vote for the approval and adoption of the
merger agreement, the board of directors of Fuisz considered a number of
factors. The board evaluated Fuisz's prospects if it were to remain independent,
various aspects of the merger agreement that had been negotiated with Biovail,
and the viability of other possible courses of action. In determining to enter
into the merger agreement and to recommend to Fuisz's stockholders to vote for
the approval and adoption of the merger agreement, factors supporting its
conclusion, in the view of the board of directors of Fuisz, included the
following:

    - the amount, timing and form of consideration to be received by Fuisz
      stockholders in the merger;

    - the possibility that the consideration the Fuisz stockholders might obtain
      in a future transaction or through continued ownership of Fuisz shares if
      Fuisz were to remain independent would likely be less advantageous than
      the consideration they would receive in the merger, because of:

      - Fuisz's present financial condition and needs and its business and
        strategic objectives, as well as the risks involved in achieving those
        objectives;

      - Fuisz's need to attract and retain management and skilled scientific
        personnel; and

      - Fuisz's need to restructure its operations and the current financial
        market conditions and historical market prices, volatility and trading
        information with respect to Fuisz shares;

    - the historical market prices and trading activity of Fuisz shares over the
      weeks preceding the date of the public announcement of the merger
      agreement, and the premium over those prices represented by the
      consideration payable in the merger;

    - the fact that, under the merger agreement, stockholders to some extent may
      receive in the merger the benefit of any appreciation in Biovail's stock
      price over its trading price immediately prior to the date the merger
      agreement was signed;

    - the fact that, under the merger agreement, Fuisz may still receive offers
      from other interested bidders, if any; under some circumstances, Fuisz may
      communicate with any such bidders and, if Fuisz determines any such other
      bidder has made a superior offer, Fuisz may elect to terminate the merger
      agreement;

    - the likelihood of the proposed acquisition being consummated, in light of
      Biovail's prior purchase of significant number of Fuisz shares and the
      limited conditions to Biovail's obligation to consummate the merger once
      Biovail consummates the tender offer for Fuisz stock;

                                       3
<PAGE>
    - the terms of the merger agreement, including the minimal conditions to
      closing the merger once the conditions of the tender offer have been
      satisfied or waived; and

    - the opinion of Fuisz's financial advisor, discussed further below.

    See "THE MERGER--Fuisz's Reasons for the Merger; Recommendation of the Fuisz
Board of Directors."

    BIOVAIL.  Biovail believes that the acquisition of Fuisz will strengthen
Biovail's position as a leading drug delivery company. Biovail continues to
believe that advanced drug delivery technology will play an increasingly
important role in the development of new chemical entities. In addition to
providing more consistent drug delivery and improved efficacies,
controlled-release drugs offer reduced side effects, improved patient
compliance, and more favorable pharmacoeconomics. As a result, major
pharmaceutical companies around the world are introducing an increasing number
of new chemical entities with controlled-release characteristics. Biovail
believes that this growing trend will create greater demand for advanced drug
delivery capabilities, through agreements for individual drugs and strategic
alliances. While demand for their sophisticated services accelerates, the number
of high quality drug delivery companies is declining as a result of increased
industry consolidation. See "THE MERGER--Biovail's Reasons for the Merger."

RECOMMENDATION OF THE FUISZ BOARD OF DIRECTORS

    On July 25, 1999, the board of directors of Fuisz approved the merger and
the merger agreement and determined that the terms of the merger agreement are
fair to and in the best interests of the Fuisz stockholders. The Fuisz board
recommends that you vote FOR the approval and adoption of the merger agreement.
See "THE MERGER--Fuisz's Reasons for the Merger; Recommendation of the Fuisz
Board of Directors."

OPINION OF FUISZ'S FINANCIAL ADVISOR

    In connection with the tender offer and the merger, collectively referred to
in this document as the "transaction," Fuisz's board of directors and special
committee received a written opinion from Warburg Dillon Read LLC as to the
fairness, from a financial point of view, of the consideration to be received in
the transaction by the holders of Fuisz common stock, other than Biovail and its
affiliates. The full text of Warburg Dillon Read's written opinion dated July
25, 1999 is attached to the back of this document as Annex B. Holders of Fuisz
common stock are encouraged to read this opinion carefully in its entirety for a
description of the assumptions made, procedures followed, matters considered and
limitations on the review undertaken. WARBURG DILLON READ'S OPINION IS DIRECTED
TO FUISZ'S BOARD OF DIRECTORS AND SPECIAL COMMITTEE AND DOES NOT CONSTITUTE A
RECOMMENDATION TO ANY STOCKHOLDER WITH RESPECT TO ANY MATTER RELATING TO THE
TRANSACTION. See "THE MERGER--Opinion of Financial Advisor to Fuisz."

INTERESTS OF CERTAIN PERSONS IN THE MERGER

    In considering the recommendation of the Fuisz board of directors with
respect to the merger agreement, you should be aware that certain officers and
directors of Fuisz have interests in the merger that are different from and in
addition to your interests generally and which may present them with certain
conflicts of interest. In addition, certain directors and officers of Fuisz are
expected to become officers of the surviving corporation following the merger.
For further information, see "THE MERGER--Interests of Certain Persons in the
Merger."

ANTICIPATED ACCOUNTING TREATMENT

    The merger will be accounted for by Biovail under the "purchase" method of
accounting in accordance with Canadian GAAP and U.S. GAAP. Accordingly, any
excess of the purchase price over the fair value of assets acquired will be
treated as goodwill. It is anticipated that under Canadian GAAP, any allocation
relating to in-process research and development will be

                                       4
<PAGE>
amortized over its useful life currently estimated to be fifteen years. Under
U.S. GAAP, any such allocation will be expensed at the time of the merger. The
allocation of in-process research and development, goodwill and other
intangibles in the pro forma statements of operations and notes thereto,
represents estimates based on preliminary information and analysis.

CERTAIN UNITED STATES AND CANADIAN FEDERAL INCOME TAX CONSIDERATIONS

    In general, the receipt of Biovail common shares pursuant to the merger will
be a taxable transaction for United States federal income tax purposes.

    HOWEVER, THE TAX CONSEQUENCES OF THE MERGER AND THE OWNERSHIP AND
DISPOSITION OF BIOVAIL COMMON SHARES TO YOU WILL DEPEND ON THE SPECIFIC FACTS OF
YOUR OWN SITUATION. YOU SHOULD READ CAREFULLY THE DISCUSSION IN "CERTAIN UNITED
STATES AND CANADIAN INCOME TAX CONSIDERATIONS" AND YOU SHOULD CONSULT YOUR TAX
ADVISORS TO FULLY UNDERSTAND THE TAX CONSEQUENCES OF THE MERGER AND THE
OWNERSHIP AND DISPOSITION OF BIOVAIL COMMON SHARES TO YOU.

APPRAISAL RIGHTS

    Under the General Corporation Law of the State of Delaware, the stockholders
of Fuisz are not entitled to appraisal rights in connection with the merger. See
"THE MERGER-- Absence of Appraisal Rights."

CONDITIONS TO THE MERGER

    Fuisz and Biovail will not complete the merger unless a number of conditions
are satisfied or waived by them, including:

    - approval and adoption of the merger agreement by the Fuisz stockholders;

    - no injunction prohibiting the merger; and

    - each of the companies has performed in all material respects its
      obligations under the merger agreement.

EFFECTIVE TIME OF THE MERGER

    If the merger agreement is approved and adopted by the requisite vote of the
stockholders of Fuisz and the other conditions to the merger are satisfied, the
merger will be consummated and become effective upon the filing of a certificate
of merger with the Secretary of State of the State of Delaware (the time of such
filing being the effective time) in accordance with the DGCL. See "THE MERGER
AGREEMENT-- The Merger and Its Effective Time."

TERMINATION OF THE MERGER AGREEMENT

    The merger agreement may be terminated and the merger may be abandoned at
any time prior to the effective time of the merger, whether before or after
approval by the stockholders of Fuisz:

    - by mutual consent;

    - by Biovail or Fuisz if, without fault of the terminating party, the merger
      is not consummated by March 31, 2000;

    - by Biovail or Fuisz if a final and nonappealable injunction prohibits the
      merger; or

    - by Biovail or Fuisz if the approval and adoption of the merger agreement
      by the Fuisz stockholders is not obtained.

    Biovail may terminate the merger agreement if:

    - Fuisz has willfully failed to perform in all material respects its
      agreements in the merger agreement and that failure would have a material
      adverse effect on Fuisz or would materially adversely affect or delay the
      ability of any party to consummate the merger; or

    - the board of directors of Fuisz fails to recommend the approval of the
      merger agreement and the merger to the shareholders of Fuisz, withdraws or
      amends its recommendation or approval of the merger agreement or the
      merger or makes any recommendation with respect to an acquisition
      transaction with a third party.

                                       5
<PAGE>
    Fuisz may terminate the merger agreement if:

    - Biovail or Acquisition Sub has failed to perform in all material respects
      the covenants or agreements in the merger agreement and that failure would
      have a material adverse effect on Biovail or materially adversely affect
      or delay the ability of any party to consummate the merger;

    - if the board of directors of Fuisz determines that a superior proposal has
      been made, taking into account any counter-proposal by Biovail, and Fuisz
      pays to Biovail a fee of $5.5 million prior to termination.

    See "THE MERGER AGREEMENT-- Termination; Effect of Termination."

GOVERNMENTAL AND REGULATORY MATTERS

    U.S. antitrust laws prohibit Fuisz and Biovail from completing the merger
until the transaction has been notified to the regulatory authorities and a
required waiting period has expired. On August 6, 1999, Fuisz and Biovail each
filed the required notification and report forms with the Antitrust Division and
the FTC and, on September 2, 1999, early termination of the waiting period was
granted by the Antitrust Division and the FTC.

    The merger is also subject to the Irish Mergers Act, which provides that
certain transactions may not be consummated until a notification has been made
to the Minister for Enterprise, Trade and Employment. On August 30, 1999, the
Enterprise Minister issued a clearance for the proposed transaction.

    The issuance of the Biovail common shares issuable upon the merger of Fuisz
and Acquisition Sub is conditional upon the approval of the New York Stock
Exchange and The Toronto Stock Exchange. As of the date of this proxy
statement-prospectus, application had been made to the NYSE to list the shares
of Biovail common shares to be issued in the merger. In addition, the TSE has
conditionally approved the issuance of such shares, subject to the satisfaction
of certain customary conditions. Biovail will, to the extent necessary, apply
for rulings or orders of certain provincial securities regulatory authorities in
Canada to permit the issuance and resale of the Biovail shares issuable pursuant
to the merger.

    Fuisz and Biovail are working to obtain the required regulatory approvals
and consents. However, there can be no assurance as to when or whether any of
these approvals and consents will be obtained or the terms and conditions that
may be imposed by the approvals and consents. See "THE MERGER--Governmental
Regulation."

COMPARATIVE RIGHTS OF SHAREHOLDERS

    For a comparison of Canadian law and Delaware law and of the articles of
amalgamation and the by-laws of Biovail and the certificate of incorporation and
by-laws of Fuisz governing the rights of Biovail shareholders and Fuisz
stockholders respectively, you should read "COMPARATIVE RIGHTS OF FUISZ
STOCKHOLDERS AND BIOVAIL SHAREHOLDERS."

                                       6
<PAGE>
                       COMPARATIVE PER SHARE INFORMATION

    We have summarized below the per share information for the six months ended
June 30, 1999 and the year ended December 31, 1998 of Biovail and Fuisz on a
historical basis and the per share information of Biovail and Fuisz on a pro
forma combined basis to reflect the consummation of the merger based upon the
historical financial results of Biovail and Fuisz and the conversion of each
share of Fuisz common stock into a fraction of a share of Biovail common shares
based on an exchange ratio, subject to adjustment. Please read this table
together with the historical financial statements and related notes of Biovail
and Fuisz incorporated into this document by reference and with the selected
historical and unaudited pro forma combined financial information we have
included in this proxy statement-prospectus beginning on page 57. The pro forma
information does not necessarily portray the book value per share or earnings
per share from continuing operations we would have had if the merger had closed
on the date or at the beginning of the periods indicated or the future results
we will experience after the merger.

<TABLE>
<CAPTION>
                                                               AS AT AND FOR THE SIX       AS AT AND FOR THE YEAR
                                                                      MONTHS                        ENDED
                                                                ENDED JUNE 30, 1999           DECEMBER 31, 1998
                                                            ---------------------------  ---------------------------
<S>                                                         <C>                          <C>
BIOVAIL COMMON SHARES
  Net earnings (loss) per common share
    Canadian GAAP, basic:
      Historical..........................................           $    0.83                    $    1.70
      Pro forma(1)........................................                0.04                         0.31
    Canadian GAAP, diluted:
      Historical..........................................                0.76                         1.63
      Pro forma(1)........................................                0.03                         0.27
    U.S. GAAP, basic:
      Historical..........................................                0.75                         1.56
      Pro forma(2)........................................                0.12                         0.46
    U.S. GAAP, diluted:
      Historical..........................................                0.69                         1.53
      Pro forma(2)........................................                0.12                         0.45
  Book value per common share at period end
    Canadian GAAP
      Historical..........................................                2.14                         2.06
      Pro forma(1)........................................               12.43                           --
    U.S. GAAP
      Historical..........................................                1.84                         1.82
      Pro forma...........................................                8.37                           --
FUISZ COMMON STOCK (U.S. GAAP)
  Net (loss) earnings per common share
      Historical, basic and diluted.......................               (0.66)                       (1.07)
      Equivalent share, basic(2),(3)......................                0.02                         0.07
  Book value per common share at period end
      Historical..........................................                0.71                         1.57
      Equivalent share(3).................................                1.00                           --
</TABLE>

- ------------------------------

(1) Pro forma net (loss) earnings per common share have been calculated assuming
    issuance of 5,000,000 common shares of Biovail for proceeds in a registered
    offering of $248,825,000 expected to be received on October 20, 1999 and
    completion of the merger as if they had occurred on January 1, 1998 and pro
    forma book value has been calculated as if these events had occurred on June
    30, 1999. Pro forma data per common share assumes that Fuisz common stock
    and options will be converted to Biovail shares based on the exchange ratio
    of 0.1194 of a Biovail common share for each one share of Fuisz common
    stock.

(2) Does not reflect the immediate expensing of in-process research and
    development of $117,761,000. Under U.S. GAAP companies are required to
    immediately expense in-process research and development. Under Canadian
    GAAP, in-process research and development would have been capitalized and
    amortized over its estimated useful life of fifteen years.

(3) Equivalent share data in respect of Fuisz common stock has been calculated
    by multiplying the Biovail per common share pro forma amounts by the
    exchange ratio.

                                       7
<PAGE>
                            MARKET PRICE INFORMATION

    Biovail common shares trade on the New York Stock Exchange and The Toronto
Stock Exchange, in each case under the symbol "BVF." Fuisz common stock trades
on Nasdaq under the symbol "FUSE." The following table presents closing sale
prices reported on the NYSE Composite Transactions Reporting System in THE WALL
STREET JOURNAL for the Biovail common shares and on the Nasdaq for the Fuisz
common stock as of:

    - July 23, 1999, the last full trading day prior to the announcement of the
      execution of the merger agreement;

    - July 29, 1999, the last full trading day prior to the launch of the tender
      offer; and

    - October 13, 1999, the last practicable date before the printing of this
      proxy statement-prospectus.

<TABLE>
<CAPTION>
                                                                                    BIOVAIL     FUISZ
                                                                                    COMMON     COMMON
                                                                                     SHARE      STOCK
                                                                                     PRICE      PRICE
                                                                                    -------    -------
<S>                                                                                 <C>        <C>
July 23, 1999...................................................................... $58 5/8    $ 5 11/16
July 29, 1999...................................................................... $56 5/16   $ 6 1/4
October 13, 1999................................................................... $50 15/16  $$6 1/2
</TABLE>

    The following table presents, for the fiscal quarters indicated, the high
and low sales prices of Biovail common shares and Fuisz common stock in U.S.
dollars as reported on the NYSE and Nasdaq, respectively.

<TABLE>
<CAPTION>
                                                                               BIOVAIL COMMON     FUISZ COMMON
                                                                                SHARE PRICE       STOCK PRICE
                                                                              ----------------  ----------------
<S>                                                                           <C>      <C>      <C>      <C>
                                                                               HIGH      LOW     HIGH      LOW
                                                                              -------  -------  -------  -------
1997
First quarter................................................................ $29 7/8  $21 1/4  $ 9 1/2  $ 5 5/8
Second quarter...............................................................  32 5/8   20 7/8   10 1/2    5 3/8
Third quarter................................................................  30 1/8   25 7/16  16        8 1/2
Fourth quarter...............................................................  39 1/16  26 5/8   14 3/16   7 11/16

1998
First quarter................................................................  48 15/16  33 1/2  13 3/4    7 1/4
Second quarter...............................................................  46 1/2   30 5/16  14 3/8   10 7/16
Third quarter................................................................  34 3/4   24 1/4   12 5/8    7 1/8
Fourth quarter...............................................................  37 13/16  21 3/4  14 1/8    6

1999
First quarter................................................................  43 5/16  34 9/16  15 3/8      5/16
Second quarter...............................................................  51 1/8   32 3/8    9 1/16   3 3/16
Third quarter................................................................  59       47 1/8    6 7/8    3 1/4
Fourth quarter (through October 13)..........................................  56       49 1/8    6 11/16   6 1/4
</TABLE>

                                DIVIDEND POLICY

    Biovail has not paid cash dividends on its common shares, and at this time
it intends to continue this policy for the foreseeable future in order to retain
earnings for the development and growth of Biovail's business. Biovail's
dividend policy will be reviewed periodically depending on its financial
position, capital requirements, general business conditions and on other
factors.

    Fuisz has not paid any cash dividends on Fuisz common stock in the past and
does not anticipate that it will pay such dividends in the foreseeable future.

                              CURRENCY TRANSLATION

    Biovail reports its financial statements in U.S. dollars, while the currency
of measurement for its operations varies depending upon location. Unless
otherwise indicated, references to dollars or "$" are to U.S. dollars and
references to "CDN$" are to Canadian dollars.

                                       8
<PAGE>
             SUMMARY HISTORICAL CONSOLIDATED FINANCIAL INFORMATION

    We are providing the following historical financial information about
Biovail and Fuisz to aid you in your financial analysis of the financial aspects
of the merger. The information presented is a summary only and you should read
it together with the historical financial statements and related notes of
Biovail and Fuisz incorporated into this document by reference and the unaudited
pro forma combined financial statements beginning on page 57. The summary
consolidated financial information of Biovail included below is prepared and
presented in accordance with generally accepted accounting principles in Canada
(Canadian GAAP), which differ in certain significant respects from generally
accepted accounting principles in the U.S. (U.S. GAAP). See "WHERE YOU CAN FIND
MORE INFORMATION" beginning on page 84 for more information about where to
obtain Biovail and Fuisz financial statements and related notes. All information
included below is in U.S. Dollars.

                                       9
<PAGE>
BIOVAIL SELECTED HISTORICAL CONSOLIDATED FINANCIAL INFORMATION

    We derived the following financial information from Biovail's consolidated
audited and unaudited financial statements.
<TABLE>
<CAPTION>
                                               AS AT AND FOR
                                               THE SIX MONTHS
                                               ENDED JUNE 30,           AS AT AND FOR THE YEAR ENDED DECEMBER 31,
                                            --------------------  -----------------------------------------------------
<S>                                         <C>        <C>        <C>        <C>        <C>        <C>        <C>
                                              1999       1998       1998       1997       1996       1995       1994
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------

<CAPTION>
                                                (UNAUDITED)
                                                  (THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE AND EMPLOYEE DATA)
<S>                                         <C>        <C>        <C>        <C>        <C>        <C>        <C>
EARNINGS AND RELATED DATA
Revenues
  Manufacturing and product sales.........  $  37,541  $  28,763  $  69,154  $  50,333  $  54,313  $   7,915  $   4,975
  Research and development................     15,352     11,953     32,070     19,559      4,374      4,333      3,909
  Royalty, licensing and other............     11,502      6,428     11,612     12,487      7,743      7,396      7,680
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                               64,395     47,144    112,836     82,379     66,430     19,644     16,564
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
Expenses
  Cost of manufactured goods sold.........     12,887     12,009     28,593     16,471     21,757      2,715      2,102
  Research and development expense........     11,783      8,132     17,490     14,386     10,901      7,194      5,578
  Selling and administrative..............     12,604      8,454     17,608     13,989     10,166      7,182      6,359
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                               37,274     28,595     63,691     44,846     42,824     17,091     14,039
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
Operating income..........................  $  27,121  $  18,549  $  49,145  $  37,533  $  23,606  $   2,553  $   2,525
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
Net income(1)
  Canadian GAAP...........................  $  20,364  $  17,391  $  45,419  $  35,241  $  23,284  $   5,870  $   9,461
  US GAAP.................................     18,305     14,966     41,577     32,822     22,664      5,870      1,506
Earnings per share(1)
  Canadian GAAP--basic....................  $    0.83  $    0.65  $    1.70  $    1.38  $    0.92  $    0.23  $    0.43
  Canadian GAAP--diluted..................       0.76       0.61       1.63       1.32       0.83       0.21       0.36
  US GAAP--basic..........................       0.75       0.56       1.56       1.28       0.89       0.23       0.07
  US GAAP--diluted........................       0.69       0.55       1.53       1.23       0.84        N/A        N/A

FINANCIAL POSITION
  Cash and short-term deposits............  $  86,358  $  20,882  $  78,279  $   8,275  $   4,526  $  24,323  $   2,819
  Working capital.........................    113,336     53,460    115,324     47,663      9,606        696        547
  Total assets............................    208,958    126,230    199,919     93,739     58,606     60,867     25,630
  Total long-term debt....................    126,607     11,596    126,835      4,847      6,968     10,195     10,349
  Shareholders' equity(1):
    Canadian GAAP.........................     52,071     96,425     51,191     75,458     36,943     14,592      7,693
    US GAAP...............................     44,944     96,468     45,362     73,169     36,323     14,592      7,693
  Capital expenditures....................      4,596     24,735     32,787      2,676      7,853     10,502      3,181

OTHER DATA
  Depreciation and amortization...........  $   3,154  $   2,346  $   4,957  $   3,157  $   1,967  $   1,238  $     810
  EBITDA(2)...............................     30,275     20,895     54,102     40,690     25,573      3,791      3,335
  EBITDA per share........................       1.23       0.78       2.03       1.59       1.01       0.15       0.18
Cash inflow (outflow) from:
  Operating activities....................     34,289     26,703     53,573      4,316     (5,622)    31,146      2,555
  Investing activities....................     (4,565)   (24,789)   (32,953)    (3,183)   (10,365)   (10,502)    (3,020)
  Financing activities....................    (21,762)    10,724     49,493      2,635     (2,980)       261        380
  Employees...............................        528        374        489        377        315        250        207
Weighted average shares outstanding
  (thousands).............................     24,534     26,850     26,641     25,606     25,378     24,993     21,850
</TABLE>

- ------------------------------

(1) EBITDA means operating income, plus depreciation and amortization (excluding
    amortization of deferred financing costs). EBITDA is presented because we
    believe it is a useful indicator of the company's ability to meet debt
    service and capital expenditure requirements. It is not intended as an
    alternative measure of operating results or cash flow from operations, as
    determined in accordance with generally accepted accounting principles.

                                       10
<PAGE>
FUISZ SELECTED HISTORICAL CONSOLIDATED FINANCIAL INFORMATION

    We derived the following financial information from Fuisz's consolidated
audited and unaudited financial statements.
<TABLE>
<CAPTION>
                                               AS AT AND FOR
                                               THE SIX MONTHS
                                               ENDED JUNE 30,           AS AT AND FOR THE YEAR ENDED DECEMBER 31,
                                            --------------------  -----------------------------------------------------
<S>                                         <C>        <C>        <C>        <C>        <C>        <C>        <C>
                                              1999       1998       1998       1997       1996       1995       1994
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------

<CAPTION>
                                                (UNAUDITED)
                                              (THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE FIGURES AND EMPLOYEE DATA)
<S>                                         <C>        <C>        <C>        <C>        <C>        <C>        <C>
EARNINGS AND RELATED DATA
Revenues
  Product sales...........................  $  21,007  $  23,977  $  47,898  $  11,968  $      48  $      56  $      26
  Research and development................      1,051      2,833      4,334      5,390      2,426      2,002        843
  Licensing fees and other................     13,817      3,497      8,987      4,840      6,052      3,600        500
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                               35,875     30,307     61,219     22,198      8,526      5,658      1,369
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
Expenses
  Cost of sales...........................     12,751     14,850     27,924      7,807         --         --         --
  Research and development................     12,385     11,659     24,058     16,944      9,232      4,623      3,561
  Selling, general and administrative.....     15,456     14,646     29,482     13,877      9,073      4,219      4,279
  Other operating expense.................      5,711         --         --      4,694         --         --         --
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                               46,303     41,155     81,464     43,322     18,305      8,842      7,840
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
Operating loss............................  $ (10,428) $ (10,848) $ (20,245) $ (21,124) $  (9,779) $  (3,184) $  (6,471)
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                            ---------  ---------  ---------  ---------  ---------  ---------  ---------
Net loss
  U.S. GAAP...............................  $ (14,563) $ (12,399) $ (23,579) $ (19,601) $  (6,806) $  (3,271) $  (6,613)
Loss per share
  U.S. GAAP--basic and diluted............  $   (0.66) $   (0.56) $   (1.07) $   (0.92) $   (0.35) $   (0.34) $   (0.69)

FINANCIAL POSITION
  Cash and marketable securities..........  $  16,119  $  47,483  $  28,916  $  78,682  $  60,500  $  32,721  $   4,288
  Working capital.........................     18,331     51,379     30,584     77,936     57,855     30,438      3,282
  Total assets............................    125,251    157,708    145,736    170,120     69,083     34,394      6,140
  Total debt..............................     90,788     93,857     93,538     93,905         --         --      3,000
  Shareholders' equity:
    U.S. GAAP.............................     15,678     47,500     34,448     59,608     64,191     31,902      1,940
  Capital expenditures....................      1,848      1,936      5,236     12,789      4,449        108        829

OTHER DATA
  Depreciation and amortization...........  $   4,745  $   4,252  $   8,455  $   2,439  $     703  $     387  $     320
  EBITDA(1)...............................     (5,683)    (6,596)   (11,790)   (18,685)    (9,076)    (2,797)    (6,151)
  EBITDA per share(1).....................      (0.26)     (0.30)     (0.53)     (0.88)     (0.47)     (0.29)     (0.64)
Cash inflow (outflow) from:
  Operating activities....................     (9,464)   (11,094)   (14,364)   (16,260)    (2,680)    (1,624)    (5,290)
  Investing activities....................      2,589     14,276     27,338    (53,452)   (50,614)   (10,280)      (632)
  Financing activities....................        136        (80)    (8,593)    70,869     36,022     30,169      8,143
  Employees...............................        397        462        435        411         56         51         39
Weighted average shares outstanding
  (thousands).............................     21,925     22,259     22,129     21,234     19,496      9,763      9,603
</TABLE>

- ------------------------------

(1) EBITDA means operating loss, plus depreciation and amortization (excluding
    amortization of deferred financing costs and discount on notes payable).
    EBITDA is presented because we believe it is a useful indicator of the
    company's ability to meet debt service and capital expenditure requirements.
    It is not intended as an alternative measure of operating results or cash
    flow from operations, as determined in accordance with generally accepted
    accounting principles.

                                       11
<PAGE>
           SUMMARY UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION

    The following unaudited pro forma combined financial information combines
the historical financial statements of Biovail and Fuisz after adjusting for the
receipt of the proceeds from the issuance of 5,000,000 common shares of Biovail
in a registered offering expected to be received October 20, 1999 and has been
prepared to show the effects of the merger. The unaudited pro forma statements
give effect to the merger as if it had occurred on June 30, 1999 in respect of
the pro forma combined balance sheet as at June 30, 1999 and on January 1, 1998
in respect of the pro forma combined statements of operations for the six month
period ended June 30, 1999 and for the year ended December 31, 1998. The pro
forma information does not necessarily portray the historical results or
financial position that would have been achieved had the merger been in effect
and you should not construe it as a representation of future operations. For
more detailed pro forma information, including the assumptions and adjustments
made in calculating the pro forma information, please see "Unaudited Pro Forma
Combined Financial Information" on page 57. You should read the following
information together with the historical financial statements of Biovail and
Fuisz and all related notes. The historical financial statements of Biovail and
Fuisz are incorporated into this proxy statement-prospectus by reference.

<TABLE>
<CAPTION>
                                                            PRO FORMA AS AT AND FOR THE
                                                                        SIX               PRO FORMA FOR THE YEAR
                                                            MONTHS ENDED JUNE 30, 1999    ENDED DECEMBER 31, 1998
                                                           -----------------------------  -----------------------
<S>                                                        <C>                            <C>
                                                             (THOUSANDS OF U.S DOLLARS, EXCEPT PER SHARE DATA)
CANADIAN GAAP
OPERATING RESULTS
  Revenue................................................               91,239                     154,013
  Net earnings...........................................                1,139                      10,204

CAPITAL EXPENDITURES.....................................                6,444                      38,023

FINANCIAL POSITION
  Cash and marketable securities.........................              262,139                          --
  Working capital........................................              216,810                          --
  Total assets...........................................              643,385                          --
  Long-term debt (excluding current portion).............              139,103                          --
  Common shareholders' equity............................              382,212                          --
  Total debt to total capitalization.....................                   57%                         --

PER SHARE DATA
  Net earnings (loss) per common share:
    Basic................................................            $    0.04                   $    0.31
    Diluted..............................................            $    0.03                   $    0.27

OTHER DATA
  EBITDA (2).............................................               24,021                      40,650

U.S. GAAP
OPERATING RESULTS
  Revenue................................................               91,239                     154,013
  Net earnings (1).......................................                3,742                      15,008
FINANCIAL POSITION
  Working capital........................................              211,196                          --
  Total assets...........................................              523,923                          --
  Common shareholders' equity............................              257,324                          --

PER SHARE DATA:
  Net earnings per common share:
    Basic................................................            $    0.12                   $    0.46
    Diluted..............................................                 0.12                        0.44
  Net earnings per Fuisz equivalent share (3):
    Basic................................................            $    0.01                   $    0.06
    Diluted..............................................                 0.01                        0.05

OTHER DATA:
  EBITDA (2).............................................            $  26,624                   $  45,453
</TABLE>

                                       12
<PAGE>
- ------------------------------

(1) Net earnings do not include the immediate expensing under U.S. GAAP of
    in-process research and development of $117,761. For purposes of reporting
    under U.S. GAAP, companies are required to immediately expense in-process
    research and development. Under Canadian GAAP, in-process research and
    development would have been capitalized and amortized over its estimated
    useful life of fifteen years.

(2) EBITDA means operating loss, plus depreciation and amortization (excluding
    amortization of deferred financing costs and discount on notes payable).
    EBITDA is presented because we believe it is a useful indicator of Biovail's
    ability to meet debt service and capital expenditure requirements. It is not
    intended as an alternative measure of operating results or cash flow from
    operations, as determined in accordance with generally accepted accounting
    principles.

(3) Equivalent per share data in respect of Fuisz common stock has been
    calculated by multiplying the Biovail per common share pro forma amounts by
    the exchange ratio of 0.1194.

                                       13
<PAGE>
           CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

    In this proxy statement-prospectus, Biovail and Fuisz have made
forward-looking statements that are subject to risks and uncertainties. Forward
looking statements include statements concerning possible or assumed future
results of operations included:

    - under "THE MERGER--Biovail's Reasons for the Merger";

    - in statements about the benefits that Biovail or Fuisz may achieve as a
      result of the merger, or about other effects of the merger or the future
      development of Biovail;

    - in statements before, after or including the words "may," "will," "could,"
      "should," "believe," "expect," "future," "anticipate," "intend," "plan,"
      "estimate," or "continue" or similar expressions; and

    - in other statements about matters that are not historical facts.

    Various risks and uncertainties may cause actual results to differ
materially from the results that these statements express or imply. For
instance, some of the important factors that could cause Biovail's or Fuisz's
actual results to differ materially include:

    - costs or difficulties in integrating Biovail and Fuisz are greater than
      expected or involve the loss of key personnel resulting in an inability of
      Biovail to capitalize on Fuisz's research, development and marketing
      capabilities to the degree contemplated by Biovail and Fuisz;

    - the failure to successfully develop, commercialize and launch new products
      in a timely manner;

    - the difficulty of predicting FDA and TPD approvals;

    - fluctuations in operating results;

    - competitive pressures and pricing in the health care industry;

    - risks associated with technology and product development;

    - availability of raw materials;

    - risks relating to clinical development and medical acceptance of new
      pharmaceutical products;

    - changes in the health care marketplace;

    - reliance on key strategic alliances; and

    - patent and intellectual property matters, regulatory and manufacturing
      issues.

    Please do not place undue reliance on these forward-looking statements,
which speak only as of the date of this proxy statement-prospectus.

                                       14
<PAGE>
                                  RISK FACTORS

    YOU SHOULD CAREFULLY CONSIDER THE FOLLOWING RISK FACTORS IN EVALUATING
WHETHER TO VOTE FOR OR AGAINST THE APPROVAL AND ADOPTION OF THE MERGER
AGREEMENT.

RISK FACTORS RELATING TO BIOVAIL

    THE PHARMACEUTICAL INDUSTRY IS HIGHLY COMPETITIVE AND SUBJECT TO RAPID AND
SIGNIFICANT TECHNOLOGICAL CHANGE WHICH COULD RENDER OUR TECHNOLOGIES AND
PRODUCTS OBSOLETE AND UNCOMPETITIVE. Biovail's competitors may succeed in
developing technologies and products that are more effective or cheaper to use
than any it may develop or license, which would have a material adverse effect
on Biovail's business and financial results. Biovail's products face intense
competition from conventional forms of drug delivery and from controlled-release
drug delivery systems developed, or under development, by other pharmaceutical
companies. Biovail competes with companies in the United States and abroad,
including major pharmaceutical and chemical companies, specialized contract
research organizations, research and development firms, universities and other
research institutions. Some of its competitors are also licensees (or potential
licensees) of its products. Many of Biovail's competitors have greater financial
resources and marketing capabilities than Biovail does, and they may be less
leveraged. Some of Biovail's competitors have greater experience than it does in
clinical testing and human clinical trials of pharmaceutical products and in
obtaining FDA and other regulatory approvals.

    BIOVAIL'S BUSINESS IS SUBJECT TO LIMITATIONS IMPOSED BY GOVERNMENT
REGULATIONS.  The cost of complying with government regulation can be
substantial. Governmental authorities in the United States and Canada and
comparable authorities in foreign countries also regulate the research and
development, manufacture, testing and safety of controlled-release products. The
regulations applicable to Biovail's existing and future products may change.
There can be long delays in obtaining required clearances from regulatory
authorities in any country after applications are filed. Government agencies in
the United States, Canada and other countries in which Biovail carries on its
business regulate pharmaceutical products intended for human use. Regulations
require extensive clinical trials and other testing and government review and
final approval before Biovail can market these products.

    Requirements for approval vary widely from country to country outside of the
United States and Canada. Whether or not approved in the United States or
Canada, regulatory authorities in other countries must approve a product prior
to the commencement of marketing the product in those countries. The time
required to obtain any such approval may be longer or shorter than in the United
States or Canada.

    Any failure or delay in obtaining regulatory approvals could adversely
affect the marketing of any products we develop and Biovail's financial results.

    BIOVAIL IS CURRENTLY DEPENDENT ON A PARTICULAR PRODUCT AND SEVERAL
CUSTOMERS.  If a new drug were developed that was significantly more effective
in the treatment of hypertension or angina than Tiazac-Registered Trademark-,
Biovail's most significant product, or if the medical industry determined that
another pre-existing product were significantly more effective in the treatment
of hypertension or angina, the result could be a significant reduction in
Tiazac-Registered Trademark- sales. This could have material adverse effect on
Biovail's business, results of operations, financial condition and cash flows.
Furthermore, the three-year marketing exclusivity period for
Tiazac-Registered Trademark- has expired and one generic drug manufacturer has
submitted an ANDA for a generic version of Tiazac-Registered Trademark-. Under
current law, if the ANDA is approved, they may be able to begin marketing as
early as mid-2001. This may affect Tiazac-Registered Trademark-'s market share
and may reduce the price at which Tiazac-Registered Trademark- could be sold and
could therefore have a material adverse effect on Biovail's business, results of
operations, financial condition and cash flows. Sales of
Tiazac-Registered Trademark- pursuant to agreements with Forest Laboratories,
Inc. accounted for approximately 48% and 51% of Biovail's total revenues for the
six-month period ended June 30, 1999 and for the year ended December 31, 1998,
respectively.

                                       15
<PAGE>
Biovail's total sales of Tiazac-Registered Trademark-, including sales by
Crystaal in Canada, accounted for approximately 50% and 62% of Biovail's total
revenue in the six-month period ended June 30, 1999 and in the year ended
December 31, 1998, respectively.

    Research and development services rendered to Intelligent Polymers and Teva
Pharmaceutical Industries Ltd. accounted for approximately 18% and 0% of
Biovail's total revenues, respectively, for the six months ended June 30, 1999
and 9% and 12%, respectively, for the year ended December 31, 1998.

    THERE IS UNCERTAINTY REGARDING BIOVAIL'S PATENTS AND PROPRIETARY TECHNOLOGY
AND PATENT PROTECTION IS UNPREDICTABLE.  Competitors may have filed patent
applications, or hold issued patents, relating to products or processes
competitive with those Biovail is developing. Biovail's patent applications for
a product may not be approved. The patents of Biovail's competitors may impair
its ability to do business in a particular area. Others may independently
develop similar products or duplicate any of Biovail's unpatented products.
While Biovail has not routinely sought patents on its controlled-release
technology, Biovail does have the exclusive right to the patented technology for
Tiazac-Registered Trademark-. Biovail's success will depend, in part, on its
ability in the future to obtain patents, protect trade secrets and other
proprietary information and operate without infringing on the proprietary rights
of others.

    Historically, Biovail has relied on trade secrets, know-how and other
proprietary information as well as requiring its employees and other vendors and
suppliers to sign confidentiality agreements. However, these confidentiality
agreements may be breached, and Biovail may not have adequate remedies for any
breach. Others may independently develop substantially equivalent proprietary
information. Third parties may otherwise gain access to Biovail's proprietary
information.

    There has been substantial litigation in the pharmaceutical industry
concerning the manufacture, use and sale of new products that are the subject of
conflicting patent rights. When Biovail files an Abbreviated New Drug
Application ("ANDA") for a generic drug, Biovail is required to certify to the
FDA that any patent which has been listed with the FDA as covering the branded
product has expired, the date any such patent will expire, or that any such
patent is invalid or will not be infringed by the manufacture, sale or use of
the new drug for which the application is submitted. Approval of an ANDA is not
effective until each listed patent expires, unless the applicant certifies that
the patents at issue are not infringed or are invalid and so notifies the patent
holder and the holder of the branded product New Drug Application ("NDA"). A
patent holder may challenge a notice of non-infringement or invalidity by suing
for patent infringement within 45 days of receiving notice. Such a challenge
would prevent FDA approval for a period which ends 30 months after the receipt
of notice, or sooner if an appropriate court rules that the patent is invalid or
not infringed. From time to time, in the ordinary course of business, Biovail
faces such challenges. In addition, even if a product is found not to infringe
patents of the pioneer manufacturer, or if no claim of infringement is filed, if
the certifying party is not the first to submit an ANDA for a particular
product, approval may be delayed for as long as 180 days beyond the date that
the first generic applicant begins commercial marketing. One of Biovail's
competitors has submitted, prior to our submission, an ANDA for one-dosage
strength generic version of Procardia XL, which would be a direct competitor
with Intelligent Polymers' generic formulation of Procardia XL. One of Biovail's
competitors has submitted an ANDA for one-dosage strength generic version of
Adalat CC prior to Biovail's submission of an ANDA for such product. Two of
Biovail's competitors submitted ANDAs for generic versions of Cardizem CD prior
to Biovail's submission of an ANDA for such product.

    The expense of litigation, whether or not Biovail is successful, could have
a material adverse effect on Biovail's business, results of operations,
financial condition and cash flows. Such lawsuits may be brought and the
ultimate outcome of such litigation, if commenced, could have a material adverse
effect on Biovail's business, results of operations, financial condition and
cash flows. Regardless of FDA approval, should anyone commence a lawsuit with
respect to any alleged patent infringement by

                                       16
<PAGE>
Biovail, whether because of the filing of an ANDA or otherwise, the
uncertainties inherent in patent litigation make the outcome of such litigation
difficult to predict.

    THERE IS NO ASSURANCE THAT BIOVAIL WILL CONTINUE TO BE SUCCESSFUL IN ITS
LICENSING AND MARKETING OPERATIONS.  Except in Canada, Biovail's products are
marketed by third parties by way of license agreements or otherwise. Such
third-party arrangements may not be successfully negotiated in the future. Any
such arrangements may not be available on commercially reasonable terms. Even if
acceptable and timely marketing arrangements are available, the products Biovail
develops may not be accepted in the marketplace. Even if such products are
initially accepted, sales may thereafter decline. Additionally, Biovail's
clients or marketing partners in many cases may make important marketing and
other commercialization decisions without Biovail's input with respect to
products Biovail develops. As a result, many of the variables that may affect
Biovail's revenues and net income are not exclusively within Biovail's control.

    BIOVAIL IS NOT ASSURED OF SUCCESSFUL DEVELOPMENT OF ITS PRODUCT
PIPELINE.  At December 31, 1998, Biovail had sixteen products at various stages
of development and had filed ANDAs relating to seven such products with the FDA
one of which, Cardizem SR, has been approved. FDA approval may not be granted
for all of these products and Biovail may not be successful in filing NDAs or
ANDAs for the remaining nine products with the FDA.

    BIOVAIL DEPENDS ON KEY SCIENTIFIC AND MANAGERIAL PERSONNEL FOR ITS CONTINUED
SUCCESS.  Much of Biovail's success to date has resulted from the particular
scientific and management skills of its personnel. Such personnel may not
continue to be available to Biovail. If these individuals were not available,
Biovail might not be able to attract or retain employees with similar skills. In
particular, Biovail's success to date in developing new products has resulted
from the activities of a core group of research scientists. The continued
availability of this group is important to Biovail's ongoing success.

    BIOVAIL MUST SUCCESSFULLY INTEGRATE FUISZ AND ANY BUSINESS OR PRODUCTS
BIOVAIL ACQUIRES IN THE FUTURE.  Biovail's combination with Fuisz involves the
integration of separate companies that have previously operated independently.
The process of combining the companies may be disruptive to the businesses.

    In addition, Biovail may pursue product or business or more significant
acquisitions that could complement or expand its business. However, there can be
no assurance that Biovail will be able to identify appropriate acquisition
candidates in the future. If an acquisition candidate is identified, there can
be no assurance that Biovail will be able to successfully negotiate the terms of
any such acquisition, finance such acquisition or integrate such acquired
product or business into its existing products and business. Furthermore, the
negotiation of potential product acquisitions could divert management's time and
resources, and require significant resources to consummate. If Biovail
consummates one or more significant acquisitions through the issuance of common
shares, holders of Biovail's common shares could suffer significant dilution of
their ownership interests.

    In addition, Fuisz has its own program to address Year 2000 issues. Until
the merger, Biovail has no direct control of Fuisz and the risk of their failure
to be Year 2000 compliant is difficult to assess.

    BIOVAIL MUST CONTINUE TO ADDRESS REMAINING YEAR 2000 ISSUES.  The Year 2000
issue involves the potential exposures related to the erroneous generation of
business and financial information resulting from the fact that certain computer
systems and programs use two digits, rather than four, to define the applicable
year of business transactions. These programs do not properly recognize a year
that begins with "20" instead of the familiar "19." These programs may process
data incorrectly or stop processing data altogether. Biovail relies upon its own
and vendor-supplied technology and recognizes the potential business risk to its
assets and systems associated with the arrival of the Year 2000. Biovail is
substantially complete in addressing potential Year 2000 readiness issues
associated with its systems and its suppliers' products, services, systems and
operations, and Biovail expects to complete this

                                       17
<PAGE>
process shortly. Biovail's cash cost of achieving Year 2000 compliance is
estimated to be approximately $500,000. To date, Biovail has incurred
approximately $450,000, related to the assessment of and preliminary efforts on
its Year 2000 project and the development of a contingency plan.

    Biovail utilizes enterprise resource planning systems in the operation of
its core business functions. In conjunction with third party consultants,
substantial efforts have been made to test all components of the enterprise
resource planning system for Year 2000 compliance. The evaluation of test
results and any required remediation is expected to be completed shortly.
Biovail's customers and suppliers may not have management information systems
that are Year 2000 compliant and required systems modifications may not be
completed by the Year 2000. Biovail's failure to be Year 2000 compliant, or the
failure of Biovail's customers or suppliers, could have a material adverse
effect on Biovail's results of operations, business, prospects and financial
condition. Biovail has identified and contacted key suppliers, partners and
collaborators to determine their stage of readiness for the Year 2000. Despite
Biovail's best efforts, risks of third party compliance are not directly within
Biovail's control and are difficult to assess.

    BIOVAIL'S BUSINESS MAY BE ADVERSELY AFFECTED BY ENVIRONMENTAL LAWS AND
REGULATIONS.  Biovail may incur substantial costs to comply with such
requirements. In addition, Biovail may discover currently unknown environmental
problems or conditions. Biovail is subject to extensive federal, state,
provincial and local environmental laws and regulations which govern the
discharge, emission, storage, handling and disposal of a variety of substances
that may be used in or result from Biovail's operations. Environmental laws or
regulations (or their interpretation) may become more stringent in the future.
Any such event could have a material adverse effect on Biovail's business.
Biovail does not currently use any hazardous materials in the manufacture of its
products.

    BIOVAIL'S COMMON SHARES ARE SUBJECT TO MARKET PRICE VOLATILITY.  Market
prices for the securities of pharmaceutical and biotechnology companies,
including Biovail's, have historically been highly volatile, and the market has
from time to time experienced significant price and volume fluctuations that are
unrelated to the operating performance of particular companies. Factors such as
fluctuations in Biovail's operating results, the aftermath of Biovail's public
announcements, concern as to safety of drugs, and general market conditions, can
have an adverse effect on the market price of Biovail's common shares.

    BIOVAIL'S ABILITY TO OBTAIN THIRD-PARTY REIMBURSEMENT FOR THE COST OF
PRODUCTS AND RELATED TREATMENT MAY NOT BE ADEQUATE.  Biovail's ability to
successfully commercialize its product and product candidates, if FDA approval
is obtained, depends in part on whether appropriate reimbursement levels for the
cost of the products and related treatments are obtained from government
authorities and private health insurers and other organizations, such as HMOs
and MCOs.

    Third-party payors increasingly challenge pricing of pharmaceutical
products. In addition, the trend toward managed health care in the United
States, the growth of organizations such as HMOs and MCOs and legislative
proposals to reform health care and government insurance programs could
significantly influence the purchase of pharmaceutical products, resulting in
lower prices and a reduction in product demand. Such cost containment measures
and health care reform could affect Biovail's ability to sell our products and
may have a material adverse effect on Biovail's business, results of operations
and financial condition.

    Uncertainty exists about the reimbursement status of newly approved
pharmaceutical products. Reimbursement in the United States or foreign countries
may not be available for some of Biovail's products. Any reimbursement granted
may not be maintained or limits on reimbursement available from third-party
payors may reduce the demand for, or negatively affect the price of, those
products. These issues could have a material adverse effect on Biovail's
business, results of operations and financial condition. Biovail cannot predict
if additional legislation or regulation impacting the health

                                       18
<PAGE>
care industry or third-party coverage and reimbursement may be enacted in the
future, or what effect such legislation or regulation would have on its
business.

RISK FACTORS RELATING TO FUISZ

    FUISZ HAS AN ON-GOING NEED FOR CAPITAL.  Fuisz expects to continue to incur
substantial expenses related to further research and development of its
technologies and products, personnel costs, performing under its existing
collaborative agreements, acquisition and support of patent rights, additional
capital equipment and facility expansion. Fuisz's cash reserves equal
approximately $10,700,000 (excluding pledged balances of $9,700,000 and
$2,100,000 held by it subsidiaries) as of July 23, 1999. In the months since
March 31, 1999, Fuisz's monthly run rate was approximately $2,500,000 per month.
Fuisz expects that, at least for the near term, its cash flow will be derived
principally from product sales and development and license fees from
collaborative partners. While it is possible that the currently available funds
and internally generated cash flow will be sufficient to meet its operating
needs through the end of 1999, unexpected factors could arise that could affect
its ability to do so. If Fuisz must satisfy significant expenditures arising
from its proposed merger with Biovail or from other events, or if Fuisz elects,
or is required by its collaborative partners, to engage in significant
commercial-scale manufacturing beyond its current plans, to conduct significant
marketing activities, or to seek, independent of its collaborative partners,
regulatory approvals for its products, Fuisz will require substantial funds for
these purposes.

    The ability of Fuisz to satisfy its expected cash requirements for its 2000
fiscal year and beyond are uncertain, and will depend on many factors,
including:

        - the ability of Fuisz to establish and maintain existing collaborative
    arrangements and establish and maintain new collaborative arrangements with
    others;

        - the ability to have partners convert development agreements into
    license agreements;

        - the costs involved in preparing, filing, prosecuting, maintaining and
    enforcing patent claims and complying with regulatory requirements;

        - competing technological and market developments;

        - changes in Fuisz's existing research relationships; and

        - the effectiveness of product commercialization activities and
    arrangements.

    If Fuisz's currently available funds and internally generated cash flow are
not sufficient to satisfy its financing needs, Fuisz would be required to seek
additional funding through other arrangements with corporate collaborators,
through the sale of all or part of its European subsidiaries, through bank
borrowings or through public or private sales of its securities, including
equity securities. Any such collaboration could result in limitations on Fuisz's
ability to control the research, development and commercialization of resulting
products, if any, as well as its profits therefrom. In addition, the terms of
any future bank borrowings could place restrictions on Fuisz's ability to take
certain actions, and any equity financing could result in dilution to Fuisz's
stockholders. Fuisz does not currently have any committed sources of additional
capital.

    FUISZ HAS A SIGNIFICANT LEVEL OF INDEBTEDNESS UPON WHICH IT IS OBLIGATED TO
PAY INTEREST.  Fuisz's indebtedness is significant in relation to its
stockholders' equity. Fuisz's debt accounted for approximately 73% of its total
capitalization as of December 31, 1998. The annual interest expense to Fuisz
relating to the 7% Convertible Subordinated Debentures of Fuisz is $5,250,000
(assuming none of these Debentures are converted). It is uncertain whether
Fuisz's revenue stream and earnings will be sufficient to enable Fuisz to cover
its interest obligations on these debentures or to enable it to repay principal
upon maturity of these debentures. Prior to its 1998 and 1997 acquisitions,
Fuisz's revenues have been generally limited to non-recurring research and
development fees and license fees pursuant to Fuisz's collaborative agreements
and not from product sales.

                                       19
<PAGE>
    FUISZ HAS INCURRED NET LOSSES IN EACH YEAR SINCE ITS INCEPTION.  Fuisz
incurred net losses of approximately $23.6 million during the year ended
December 31, 1998. Its annual losses have resulted in an accumulated deficit of
$72.7 million at December 31, 1998. Fuisz's ability to generate significant
revenue and become profitable will be dependent in large part on the ability of
Fuisz to enter into additional collaborative agreements and on the ability of
Fuisz and its collaborators to successfully manufacture and commercialize
products incorporating Fuisz's technologies. To date, Fuisz has not received any
significant revenue from sales of, or royalties from, products incorporating its
proprietary technologies.

    FUISZ'S PRODUCTS ARE LARGELY IN THE DEVELOPMENT STAGE.  Prior to 1999,
Fuisz's soft chew calcium supplements were the only commercially available
products utilizing Fuisz's proprietary technology, and Fuisz has not realized
significant revenues from sales or royalties of products incorporating its
proprietary technologies. Most of Fuisz's potential product applications are in
the research or development stage. Since inception, Fuisz's operating revenue
has consisted principally of research and development fees and license fees. To
achieve profitable operations, Fuisz, alone or with others, must successfully
complete development of its products, obtain any necessary regulatory approvals,
complete manufacturing scale-up and introduce and market its products. However,
it is uncertain whether or when Fuisz will be able to successfully accomplish
product development.

    FUISZ MAY NOT BE ABLE TO COMMERCIALIZE ITS TECHNOLOGY THROUGH ITS OWN
PRODUCTS.  A component of Fuisz's strategy has been to leverage its proprietary
technology to develop, manufacture and commercialize its own products. Such
products include those that are subject to existing development and license
agreements where Fuisz has retained co-exclusive manufacturing and marketing
rights to the end-user products and others that are the subject of self-funded
development programs of Fuisz. Fuisz may not be able to successfully achieve
this type of product development. Fuisz may have to curtail its self-funding of
product development if it does not obtain additional capital. If Fuisz is able
to develop its own products, its implementation of commercial scale
manufacturing facilities and its marketing efforts to support those products
would require significant commitments of capital by Fuisz. Although several of
the businesses that have been acquired by Fuisz have manufacturing and marketing
experience, prior to such acquisitions, Fuisz has had limited manufacturing
experience and no marketing experience. It is uncertain whether Fuisz can
successfully develop or capitalize on that experience, or that Fuisz's products
will be accepted in the marketplace.

    Commercialization efforts by Fuisz may compete with activities of Fuisz's
collaborative partners, most of which have greater financial resources than
Fuisz. Moreover, it is uncertain whether Fuisz's active pursuit of its own
efforts to develop and commercialize products using Fuisz's proprietary
technology will not otherwise adversely affect Fuisz's relations with its
existing and potential collaborative partners.

    FUISZ HAS HAD LIMITED MANUFACTURING EXPERIENCE AND MAY ENCOUNTER
DIFFICULTIES IN SCALING-UP PRODUCTION OF PRODUCTS INCORPORATING ITS
TECHNOLOGY.  Products incorporating Fuisz's CEFORM and Shearform technologies
have been manufactured by Fuisz at a commercial scale on a limited basis. Fuisz
also has had limited commercial experience with its nutraceutical products,
which have been manufactured by third parties. Fuisz currently plans to retain
rights to manufacture commercial quantities of pharmaceutical compounds
processed using Fuisz's proprietary technologies and to conduct other
manufacturing operations. Prior to Fuisz's 1997 acquisition of Clonmel, Fuisz
had limited experience manufacturing pharmaceutical products for commercial
purposes. Fuisz intends to use Clonmel's facilities in Ireland for manufacturing
activities and expand this facility so that it may be used to manufacture
products employing Fuisz's proprietary technology. Fuisz also intends to use its
newly commissioned 750 million dosage unit pharmaceutical facility in Chantilly,
Virginia to manufacture products employing Fuisz's proprietary technology. It is
uncertain whether manufacturing and control problems will not arise as Fuisz
begins to scale up manufacturing facilities or that manufacturing can be scaled
up in a timely manner or at a commercially reasonable cost to enable

                                       20
<PAGE>
production in sufficient quantities. Failure by Fuisz to successfully develop
commercial-scale manufacturing facilities and develop in a timely manner or at a
commercially reasonable cost the facilities necessary to manufacture products
utilizing Fuisz's technology could have a material adverse effect on Fuisz. If
such manufacturing or control problems arise or if Fuisz is not able to
successfully scale-up manufacturing in a timely or cost effective manner for any
reason, Fuisz's business could be materially adversely affected.

    In connection with the manufacture of pharmaceuticals and food ingredient
products, Fuisz will be required to adhere to cGMP regulations enforced by the
FDA through its facilities inspection program. Fuisz also will be required to
comply with manufacturing standards prescribed by various federal, state and
local regulatory agencies in the United States and other countries.

    FUISZ'S DEPENDENCE ON ITS COLLABORATIVE PARTNERS MEANS THAT MANY FACTORS
OUTSIDE ITS CONTROL MAY AFFECT ITS SUCCESS.  Fuisz has and anticipates that it
will continue to enter into collaborative arrangements with other companies,
which will market and which may manufacture products incorporating Fuisz's
technologies. Fuisz's prospects are, therefore, in part dependent upon Fuisz's
ability to attract and retain collaborative partners and to develop products and
manufacturing processes that meet the requirements of such collaborative
partners. It is uncertain whether Fuisz's existing or future collaborative
arrangements will result in successful product commercialization. In addition,
Fuisz is applying significant resources to its funded development of products
for which it later intends to seek collaborative partners. It is uncertain
whether Fuisz will be able to enter into collaborative agreements with respect
to such funded projects. The amount and timing of resources which the parties to
collaborative arrangements with Fuisz devote to these activities is not within
the control of Fuisz.

    If any of Fuisz's collaborators breaches or terminates its agreement with
Fuisz or otherwise fails to conduct its collaborative activities in a timely
manner, the development or commercialization of the product candidate or
research program under such collaborative agreement may be delayed, and Fuisz
may be required to devote unforeseen additional resources to such development or
commercialization, or terminate such programs. It is uncertain whether disputes
will not arise in the future with respect to the ownership or rights to any
technology developed with third parties. These and other possible disagreements
between collaborators and Fuisz could lead to delays in the collaborative
research, development or commercialization of certain product candidates, or
could require or result in litigation or arbitration, which could be time
consuming and expensive and could have a material adverse effect on Fuisz's
business, financial condition and results of operations. Fuisz may also be
dependent upon the testing, regulatory approval and marketing efforts and, in
certain cases, the manufacturing capabilities of its collaborative partners. The
amount and timing of resources to be devoted by Fuisz's collaborators to
marketing are not within the control of Fuisz and it is uncertain whether
Fuisz's existing collaborative efforts will result in the commercialization of
products.

    As part of Fuisz's strategy, Fuisz seeks to manufacture products
incorporating Fuisz's technologies and has been expanding its manufacturing
capabilities. In the past, Fuisz has entered into license agreements that grant
Fuisz's collaborative partners the exclusive right to utilize Fuisz's technology
to manufacture, or to sublicense the right to manufacture, the pharmaceutical
products covered by such license agreements, other than the right to manufacture
CEFORM microspheres (which right generally is retained by Fuisz on an exclusive
basis). It is uncertain whether Fuisz's collaborative partners will contract
with Fuisz to manufacture licensed products using Fuisz's technology. Failure of
Fuisz's collaborative partners to contract with Fuisz for the manufacture of
products could have a material adverse effect on Fuisz's business, financial
condition or results of operations. In addition, Fuisz's collaborators may
develop, either alone or with others, products that compete with the development
and marketing of Fuisz's product candidates. Competing products, either
developed by Fuisz's collaborators or to which the collaborators have rights,
may result in Fuisz's collaborators withdrawing research, development or
marketing support with respect to all or a portion of Fuisz's technology,

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which could have a material adverse effect on Fuisz's business, financial
condition and results of operations.

    Pursuant to Fuisz's development agreements with collaborative partners,
Fuisz typically has agreed to develop product prototypes for the collaborative
partner's evaluation. A definitive license agreement for the manufacture and
marketing of a product or products may be entered into at the same time as the
development agreement relating to such product, or at a later date. In any
event, under Fuisz's existing collaborative agreements, collaborative partners
generally have the right to abandon a product, and consequently to terminate
funding, at any time and for any reason without penalty. Collaborative partners
are also generally free to market products using drug delivery or other
technologies that are competitive with those of Fuisz. A decision by a
collaborative partner to delay introduction or abandon one or more of its
products incorporating Fuisz's technology or to adopt a competing technology
could adversely affect Fuisz's business, financial condition and results of
operations. Fuisz's license agreements currently in effect generally provide,
and it is expected that future license agreements will provide, for Fuisz to
receive a payment at the time of execution of the agreement, additional
scheduled payments or payments based on the attainment of certain milestones and
royalty payments based on net sales of products by the licensee. The timing and
amount of such payments will fluctuate, and such fluctuations could have a
material adverse effect on Fuisz's cash position and results of operations. In
addition, royalty rates for licenses of Fuisz's technologies for OTC products
are expected, consistent with industry practices, to be lower than royalty rates
for licenses relating to prescription products.

    FUISZ HAS HAD LIMITED MARKETING AND SALES EXPERIENCE.  Prior to Fuisz's
recent acquisitions of Laboratoires Murat, Pangea Ltd., Clonmel Healthcare
Limited, Istoria Farmaceutici and Fuisz Pharma KG, Fuisz had no marketing and
sales experience. Prior to 1999, the only commercially available product
incorporating Fuisz's proprietary technology was a soft chew calcium supplement
distributed by Pangea. It is uncertain whether Fuisz will be able to
successfully integrate the sales and marketing resources of its subsidiaries
into its current operations. Pangea's sales and marketing system involves
independent sales representatives who purchase products from Fuisz. Fuisz,
therefore, has limited control over actual sales activities. It is uncertain
whether Pangea or Fuisz's other acquired subsidiaries will provide adequate
sales and distribution networks for Fuisz's products. Fuisz may require
additional capital and/or third party commitments to effectively sell and market
Fuisz's products.

    FUISZ'S FOREIGN OPERATIONS MAY NEGATIVELY IMPACT ITS FINANCIAL RESULTS.  On
a pro forma basis, giving effect to Fuisz's recent acquisitions of Murat,
Pangea, Clonmel, Istoria and Fuisz Pharma KG, Fuisz's international operations
accounted for 78% of consolidated net revenues for the year ending December 31,
1998 and 73% for the year ended 1997. Fuisz has made significant investments in
its European subsidiaries. As such, Fuisz's financial results could be adversely
affected by fluctuations in foreign exchange rates. Fluctuations in the value of
foreign currencies affect the dollar value of Fuisz's net investment in foreign
subsidiaries, with this fluctuation being included in a separate component of
stockholders' equity. Operating results of foreign subsidiaries are translated
into U.S. dollars at average monthly exchange rates. In addition, the U.S.
dollar value of transactions based in foreign currency (collection on foreign
sales or payments for foreign purchases) also fluctuates with exchange rates.
Foreign operations may subject Fuisz to the further risks of assimilating
differences in foreign business practices, hiring and retaining qualified
personnel, overcoming language barriers, limiting asset transfers, changes in
foreign regulations and political turmoil.

    MANY OF FUISZ'S COMPETITORS HAVE GREATER FINANCIAL RESOURCES THAN FUISZ
DOES.  Fuisz operates in a highly competitive and rapidly evolving field, and
new developments are expected to continue at a rapid pace, especially in the
drug delivery market. Competition from large pharmaceutical, nutraceutical,
food, consumer product and industrial companies including its collaborators,
joint ventures, academic institutions and other public and private research
organizations is expected to be intense. Many of these competitors have
substantially greater financial and technical resources and production and
marketing capabilities than Fuisz and many have substantially greater experience
in conducting clinical

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<PAGE>
trials, obtaining regulatory approvals and manufacturing and marketing
pharmaceutical, nutraceutical, food and other commercial products.

    FUISZ'S SUCCESS IS DEPENDENT ON IT PROTECTING ITS PROPRIETARY
TECHNOLOGY.  Fuisz's success depends in large part on its ability to obtain
patents, maintain trade secret protection and operate without infringing on the
proprietary rights of third parties. As of December 31, 1998, Fuisz has been
granted 87 U.S. patents and has filed a substantial number of applications for
additional U.S. patents, as well as corresponding patent applications outside
the United States, relating to Fuisz's technologies. It is uncertain whether any
of the pending patent applications will be approved, that Fuisz will develop
additional proprietary products that are patentable, that any patents issued to
Fuisz will provide Fuisz with competitive advantages or will not be challenged
by any third parties or that the patents of others will not prevent the
commercialization of products incorporating Fuisz's technologies. Furthermore,
it is uncertain whether others will not independently develop similar products,
duplicate any of Fuisz's products or, if patents are issued to Fuisz, design
around Fuisz's patents. Any of the foregoing actions or results could have a
material adverse effect on Fuisz.

    FUISZ'S ACTIVITIES ARE HEAVILY REGULATED.  Manufacturing and sales of
products and potential products by Fuisz and its collaborative partners may be
subject to extensive regulation by the FDA and by comparable agencies in foreign
countries. Although the nature and extent of regulation varies by type of
product, in general, products must meet standards regarding safety and efficacy,
manufacturing practices, labeling and purity. In addition, certain products must
receive FDA approval prior to marketing. The FDA has extensive enforcement
powers, including the power to withhold approvals of new products, to initiate
product recalls, to seize products, to delay or prevent product sales and to
halt operations. In addition, governments outside the United States will each
have their own set of regulatory standards, and possibly regulatory approvals,
with which Fuisz or its collaborators must comply to market products
incorporating Fuisz's technologies. Any failure to comply with such standards,
or to obtain such approvals, would adversely affect Fuisz. Fuisz is also subject
to numerous environmental and safety laws and regulations. Any violation of, and
the cost of compliance with, these regulations could adversely impact Fuisz's
operations.

    FUISZ IS EXPOSED TO PRODUCT LIABILITY CLAIMS.  The development and sale of
products in the pharmaceutical, nutraceutical and food areas involve an inherent
risk of product liability claims. It is uncertain whether product liability
claims will not be filed against Fuisz for products sold by others that
incorporate Fuisz's technologies or that such companies would not seek
indemnification or other relief from Fuisz for any such claims brought against
them. In addition, it is uncertain whether product liability claims will not be
filed directly against Fuisz with respect to products manufactured by it. A
product liability claim could have a material adverse effect on the business or
financial condition of Fuisz. Fuisz currently maintains product liability
insurance in amounts, which it believes, are appropriate. There can be no
assurance, however, that product liability insurance will continue to be
available to Fuisz in the future on acceptable terms, if at all, or that, if
available, the coverages will be adequate to protect Fuisz against future
product liability claims.

    FUISZ IS EXPOSED TO YEAR 2000 ISSUES.  Fuisz has undertaken a program to
address the year 2000 issue within Fuisz and in the products and services
purchased from its material suppliers. Some of Fuisz's systems, and the systems
of third parties Fuisz works with, may not be year 2000 compliant. The failure
to address a material year 2000 issue could result in an interruption in, or
failure of, certain normal business activities or operations. Furthermore, Fuisz
cannot predict the outcome of other companies' remediation efforts. Fuisz's
failure to appropriately address a material year 2000 issue, or the failure by
any third parties who provide goods or services that are critical to Fuisz's
business activities to appropriately address its year 2000 issues, could have a
material adverse effect on Fuisz's financial condition, liquidity or results of
operations.

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                              RECENT DEVELOPMENTS

ADALAT CC

    Biovail received tentative approval from the FDA in June 1999 for its 30 mg.
and 60 mg. generic versions of Adalat CC. Tentative approval means that the
scientific aspects of the product have been approved by the FDA. Biovail was the
first company to file an Abbreviated New Drug Application ("ANDA") for the 60
mg. strength of Adalat CC and will therefore be entitled to 180 days of
marketing exclusivity. Elan Corporation plc was the first to file an ANDA for
the 30 mg. strength. Biovail has entered into an agreement with Elan giving it
exclusive marketing rights for the United States for Elan's generic versions of
Adalat CC in return for certain up front payments and future royalties. Biovail
will thus be able to launch a 30 mg. Adalat CC product, which it intends to do
through Teva Pharmaceuticals, six months earlier than previously scheduled.

VERELAN/MYLAN AGREEMENT

    In March 1999, Biovail entered into agreements with Mylan Laboratories Inc.
("Mylan") for the marketing of all dosages of a generic version of Verelan using
its ANDA first filer status and Mylan's product approval, which was granted on
April 22, 1999. Mylan will manufacture all of Biovail's requirements for Verelan
until Biovail's version of the product is approved. Biovail markets this product
through its licensee, Teva and Mylan independently markets and prices the
product.

CELEXA DEVELOPMENT AND MARKETING AGREEMENTS

    In December 1998 Biovail entered into a multi-faceted ten-year agreement
with H. Lundbeck A/S of Copenhagen, Denmark ("Lundbeck") for the development of
a novel controlled-release formulation of the anti-depressant citalopram,
marketed under the trademark Celexa in the United States. Under the agreement,
Biovail will develop, manufacture and supply a controlled-release version of
citalopram for commercial sale by Lundbeck or its licensees worldwide. In
exchange, Lundbeck will pay Biovail product development fees and an agreed upon
supply price upon commercialization of the controlled-release citalopram
product.

    In addition, Lundbeck has entered into an agreement with Biovail by which
Crystaal will co-promote the immediate-release version of Celexa in
collaboration with Lundbeck Canada Inc. Crystaal will promote Celexa to primary
care physicians and will receive co-promotion fees for contributing to the
marketing of Celexa in Canada. On February 10, 1999, Lundbeck's
immediate-release version of Celexa was approved for marketing by Health
Canada's Therapeutic Products Program for the symptomatic relief of depression.

    Citalopram, an anti-depressant, belongs to a class of drugs known as SSRIs
(Selective Serotonin Reuptake Inhibitors). Citalopram is the best selling
anti-depressant in 13 countries, including eight in Europe, and has been
introduced in more than 60 countries worldwide under several trade names
including Celexa, Cipramil and Seropram. The worldwide market for such
anti-depressants is estimated to be in excess of $7 billion annually, growing at
a rate of 17% annually. Citalopram is a leading anti-depressant in Europe,
growing at a rate of 28% annually. Compared to many other SSRIs, citalopram has
an improved side effect profile and a lower incidence of drug interactions when
taken concurrently with other medications.

INTELLIPHARMACEUTICS INC. AGREEMENT

    In March 1999, Biovail entered into an agreement with Intellipharmaceutics
Inc., a company formed by Biovail's former Vice President of Research. Under the
agreement, Intellipharmaceutics utilizes certain of its proprietary technology
to help in formulating products. Intellipharmaceutics will receive milestone
payments and royalties with respect to these products. While Biovail believes
most of

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Intellipharmaceutics' resources will be spent in the formulation of Biovail's
products in the near term, the agreement permits Intellipharmaceutics to make
its services and technology available to others.

LIQUIDITY

    Pursuant to registration statements, Biovail will issue 5,000,000 common
shares in a public offering. Biovail expects to receive the proceeds of this
offering on October 20, 1999.

    In October 1999, Biovail received from a Canadian chartered bank a US$25
million revolving line of credit. The credit facility will be secured by
accounts receivable and inventory of Biovail and its subsidiaries.

                                       25
<PAGE>
                              THE SPECIAL MEETING

TIME AND PLACE

    This proxy statement-prospectus is being furnished to Fuisz stockholders in
connection with the solicitation of proxies by the board of directors of Fuisz
for use at the special meeting scheduled to be held at the law offices of
Gibson, Dunn & Crutcher LLP, 1050 Connecticut Ave., N.W., Third Floor,
Washington, D.C. 20036, on November 12, 1999, at 9:00 a.m., local time, and at
any adjournment or postponement of the special meeting.

MATTERS TO BE CONSIDERED

    At the special meeting, Fuisz stockholders will be asked to consider and
vote upon a proposal to adopt the merger agreement and to approve the merger.
You will also consider any other matters that may properly come before the
special meeting or any adjournment or postponement of the special meeting.

RECORD DATE; VOTING AT THE SPECIAL MEETING

    The Fuisz board of directors has fixed October 8, 1999 as the record date
for determination of Fuisz stockholders entitled to notice of and to vote at the
special meeting. On the record date, there were 22,341,498 shares of Fuisz
common stock outstanding and entitled to vote which were held by approximately
227 holders of record. Each holder of record of Fuisz common stock on the record
date is entitled to cast one vote per share, exercisable in person or by a
properly executed proxy, on each matter submitted at the special meeting.

QUORUM

    The presence in person or by a properly executed proxy of a majority of the
Fuisz common stock outstanding and entitled to vote at the special meeting is
necessary to constitute a quorum at the special meeting. The approval of the
merger and the adoption of the merger agreement requires the affirmative vote of
the holders of a majority of the Fuisz common stock outstanding and entitled to
vote. Officers and directors of Biovail and Fuisz will be present at the special
meeting and available to respond to appropriate questions.

    Fuisz common stock represented by "broker non-votes" (I.E., shares held by
brokers or nominees which are represented at a meeting but with respect to which
the broker is not empowered to vote) will be counted for purposes of determining
whether there is a quorum at the special meeting. Under rules applicable to
brokers, a broker is precluded from exercising voting discretion with respect to
the approval of the merger and the adoption of the merger agreement and thus,
absent specific instructions from the beneficial owner of such Fuisz common
stock, is not empowered to vote such Fuisz common stock with respect to the
approval of the merger and the adoption of the merger agreement. Since the
affirmative vote of a majority of the Fuisz common stock is required to approve
the merger and to adopt the merger agreement, a "broker non-vote" or the failure
to vote in person or by proxy will have the effect of a vote against the merger.

VOTING AND REVOCATION OF PROXIES

    All Fuisz stockholders should complete, sign and return the enclosed form of
proxy. All shares of Fuisz common stock represented at the special meeting by
properly executed proxies received before or at the special meeting, unless
those proxies have been revoked, will be voted at the special meeting, including
any postponement or adjournment of the special meeting. If no instructions are
indicated, the proxies will be voted FOR approval of the merger and adoption of
the merger agreement. In addition,

                                       26
<PAGE>
persons designated in the proxies will have discretion to vote upon any other
matters that may properly come before the special meeting to solicit additional
proxies.

    Any stockholder of record giving a proxy may revoke it at any time before
the proxy is voted at the special meeting. A proxy may be properly revoked by:

    - filing with the secretary of Fuisz, including by telegram or facsimile,
      before the taking of the vote at the special meeting, a written notice of
      revocation bearing a later date than the date of the proxy, or

    - by giving notice of revocation in the open meeting, or

    - attending the special meeting and voting in person.

    In order to vote in person at the special meeting, Fuisz stockholders must
attend the meeting and cast their votes in accordance with the procedures at the
special meeting. Attendance at the special meeting will not in and of itself
constitute a revocation of a proxy. Any written notice of revocation or
subsequent proxy must be sent to Fuisz Technologies Ltd., 14555 Avion Parkway,
Suite 250, Chantilly, Virginia 20151.

SOLICITATION OF PROXIES

    Proxies are being solicited by and on behalf of your board of directors.
Directors, officers and employees of Fuisz may solicit proxies by mail, in
person, or by telephone, by facsimile or by other means of communication. Fuisz
has engaged BankBoston N.A. c/o Equiserv to assist it in distributing proxy
materials and contacting record and beneficial owners of Fuisz common stock and
have agreed to pay BankBoston N.A. c/o Equiserv approximately $15,000, plus
out-of-pocket expenses, for its services. Brokerage houses, nominees,
fiduciaries and other custodians will be requested to forward soliciting
materials to beneficial owners and will be reimbursed for their reasonable
expenses incurred in sending proxy materials to beneficial owners.

EXPENSES

    Fuisz will bear its own expenses in connection with the special meeting and
the solicitation of proxies from its stockholders, except that Biovail and Fuisz
will share equally the costs of printing and filing this proxy
statement-prospectus.

SURRENDER OF CERTIFICATES

    If the merger is consummated, holders of Fuisz common stock will receive
instructions regarding the surrender of their stock certificates. Fuisz
stockholders should not send their stock certificates until they receive those
instructions.

                                       27
<PAGE>
                                   THE MERGER

BACKGROUND OF THE MERGER

    Biovail has identified as a strategic objective the expansion of its
pipeline of products and drug delivery platforms. The management and board of
directors of Biovail have periodically reviewed various expansion strategies,
including but not limited to the possibility of internal investments, joint
ventures and strategic alliances and acquisitions and business combinations with
companies participating in the oral pharmaceuticals industry.

    In early 1997, the then Chief Executive Officer of Fuisz contacted the
Chairman of Biovail to discuss the possibility of a business relationship
between the two companies. On April 17, 1997, members of the senior management
of the companies met at Fuisz's business premises in Chantilly, Virginia, to
discuss potential business collaborations between Biovail and Fuisz.

    Later in 1997, further discussions occurred and a number of meetings were
held between scientific representatives of Fuisz and Biovail regarding a
possible agreement for the development of a specific drug of Biovail. During
this period, Biovail undertook an extensive review of Fuisz's technology
platform for the purpose of implementing a proposed development agreement. A
development agreement was executed on December 18, 1997 pursuant to which
Biovail undertook development work with respect to the incorporation of its
patented technology into a drug Biovail was developing. Implementation of the
development agreement required numerous additional contacts between
representatives of Biovail and representatives of Fuisz during 1998.

    In early June, 1999, the Chairman of Biovail and the Chairman of Fuisz began
to discuss potential business alliances between Biovail and Fuisz. In the course
of such discussions, it was decided that both companies would consider the
feasibility of a business combination. The Chairman of Biovail and the Chairman
of Fuisz had numerous discussions concerning a possible combination between the
two entities.

    In late June, 1999, the Chairman of Biovail and the Chairman of Fuisz
discussed the possibility of Biovail acquiring the shares of Fuisz common stock
owned by the Chairman of Fuisz and retaining the Chairman as a consultant
following a possible acquisition. The Chairman of Biovail expressed the position
that the grant of an option for the shares of Fuisz common stock was a necessary
condition to Biovail's further exploration of a transaction between the two
companies. He orally proposed the terms of a possible option agreement for these
shares and suggested various alternatives relating to the acquisition of Fuisz.
On June 30, 1999, the Chairman of Biovail submitted a preliminary draft of the
terms of such an option with the understanding that such an option would be the
first step towards a possible acquisition of Fuisz.

    At a meeting of Fuisz's board on June 30, 1999, the Chairman of Fuisz
briefed the board on the Company's discussions with various parties. After
further discussion, Fuisz's board determined to appoint a Special Committee of
the board to evaluate and respond to any transactions.

    On July 2, 1999, representatives of Biovail and of the Chairman of Fuisz
discussed the terms of an option and a related escrow arrangement without
reaching an agreement or understanding.

    On July 6, 1999 Biovail stated that it was interested in conducting due
diligence on Fuisz but that it would not commence that process unless it held an
option to purchase the Fuisz shares owned by the Chairman of Fuisz. In addition,
Biovail and Fuisz discussed entering into a confidentiality agreement, however,
Biovail would not enter into such agreement without an exclusive ten day due
diligence period. On July 6, 1999, the Special Committee met telephonically and
passed a resolution approving the Chairman of Fuisz's proposed grant to Biovail
of an option to purchase his shares, and any subsequent exercise of such an
option, for the limited purpose of ensuring that the provisions of Section 203
of the DGCL would not apply to the grant and exercise of the option.

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<PAGE>
    On July 8, 1999 and July 12, 1999 representatives of Biovail,
representatives of the Chairman of Fuisz and representatives of Fuisz discussed
the terms of the option, the terms of a potential acquisition transaction and
the possibility of entering into a confidentiality agreement.

    On July 9, 1999, counsel for the Chairman of Fuisz submitted a draft of a
consulting agreement and a form of a letter agreement to Biovail which,
together, provided for the Chairman of Fuisz to provide business, strategic,
marketing, business planning, special projects and other consulting services to
Biovail. The form of consulting agreement imposes certain restrictions on the
Chairman of Fuisz with respect to competitive activities and Biovail's
employees, customers and suppliers. The consulting agreement would be effective
if Biovail, having exercised its option to acquire the shares of Fuisz common
stock owned by the Chairman of Fuisz, acquires more than 50% of Fuisz. If the
consulting agreement becomes effective, the Chairman of Fuisz is entitled to
receive a fee of $2,000,000 on the first anniversary of the effective date,
provided that if Biovail has acquired an interest of 80% or more in Fuisz prior
to July 13, 2010 the Chairman of Fuisz will be entitled to receive a fee of
$500,000 per calendar quarter until he has received aggregate fees under the
consulting agreement of $6,000,000.

    On July 13, 1999, the Chairman of Biovail, representatives of Biovail, the
Chairman of Fuisz and representatives of the Chairman of Fuisz negotiated the
terms of an option agreement between the Chairman of Fuisz and Biovail and an
escrow to hold the option shares and the purchase price after the exercise of
the option. On that date Biovail and the Chairman of Fuisz entered into an
option agreement which granted Biovail a ten day option to purchase all the
shares of Fuisz owned by the Chairman of Fuisz at a price of $7.00 per share and
the letter agreement providing that Biovail and the Chairman of Fuisz would
enter into a consulting agreement on the terms outlined above. Biovail, the
Chairman of Fuisz and a bank acting as escrow agent entered into an escrow
agreement which provided for distribution of the option shares and the purchase
price upon termination of the waiting period under the Hart-Scott-Rodino
Antitrust Improvements Act of 1976 and the Chairman of Fuisz made arrangements
to deposit his shares into escrow pending exercise or termination of the option
period. If the option shares and the purchase price are not distributed as
provided in the preceding sentence by October 31, 1999, the option shares will
be returned to the Chairman of Fuisz and the purchase price will be returned to
Biovail.

    Also on July 13, 1999, representatives of Biovail and representatives of
Fuisz negotiated the terms of a confidentiality agreement and discussed the
timing of due diligence. Biovail and Fuisz entered into a confidentiality
agreement relating to Fuisz's confidential information which also granted
Biovail an exclusivity period, subject to the fiduciary obligations of Fuisz's
board of directors, terminating July 26, 1999 while it conducted its due
diligence.

    On July 14, 15 and 16, 1999, numerous representatives of Biovail, including
its entire senior management team, regulatory consultants and intellectual
property and licensing attorneys, conducted due diligence at Fuisz's Chantilly,
Virginia premises. In the course of the due diligence investigations, the senior
management representatives of Biovail met individually and collectively with key
executive, scientific and management personnel of Fuisz.

    On July 19, 1999, the General Counsel of Biovail contacted Mr. D. Tierny, a
member of the board of directors of Fuisz, to discuss with him the possibility
of Biovail's acquisition of one million shares of Fuisz, the legal ownership of
which was lodged in Westbury Ltd. (as to 900,000 of such shares) and Salisbury
Ltd. (as to 100,000 of such shares). Biovail understands that Mr. Tierny is the
beneficial owner of these shares.

    On July 19, and 20, 1999, various representatives of Biovail continued due
diligence at Fuisz's Chantilly, Virginia premises.

    At about the same time, Fuisz executed a confidentiality agreement relating
to Biovail's confidential information. On July 19, 20 and 21, 1999, various
representatives of Fuisz conducted due

                                       29
<PAGE>
diligence at Biovail's Mississauga, Ontario, Canada premises. In the course of
that investigation, various representatives of Fuisz met with representatives of
Biovail for the purpose of determining, clarifying or enhancing their due
diligence requirements.

    During the period from July 22, 1999 through July 25, 1999, representatives
of Biovail and representatives of Fuisz negotiated the terms of a definitive
merger agreement.

    On July 22, 1999, the General Counsel of Biovail and Mr. Tierny agreed that
Biovail would purchase from Salisbury Ltd. and Westbury Ltd., their entire
shareholdings in Fuisz at $7.00 per share.

    On July 22, 1999 and July 23, 1999, the board of directors of Biovail met
and approved the proposed terms of the merger agreement and adopted resolutions
ratifying the negotiations to date, approving the possible acquisition of Fuisz
and authorizing the appropriate officers of Biovail to negotiate the terms of
and enter into a definitive merger agreement.

    On July 23, 1999, Acquisition Sub was formed and its board of directors met
and approved the proposed terms of the merger agreement and adopted resolutions
ratifying the negotiations to date, approving the possible acquisition of Fuisz
and authorizing the appropriate officers of Biovail to negotiate the terms of
and enter into a definitive merger agreement.

    On July 23, 1999 Biovail and the Chairman of Fuisz extended the option
period until 11:59 p.m. Prior to such time, Biovail wired payment to the escrow
agent and exercised its option.

    On July 23, 1999, Westbury Ltd. and Salisbury Ltd. confirmed by letter to
Biovail their agreement to sell their respective shares to Biovail, subject to a
restriction on the transfer of certain of such shares which expired on September
1, 1999.

    On July 25, 1999, Biovail acknowledged by letter its agreement with Westbury
Ltd. and Salisbury Ltd. to consummate the purchase of their respective shares
following the termination or expiration of a possible tender offer.

    On July 25, 1999, the board of directors of Fuisz approved the merger
agreement, the offer and the merger. The factors considered in approving the
merger agreement, the offer and the merger, and in recommending that
stockholders tender their common stock pursuant to the offer, are described in
Fuisz's Solicitation/Recommendation Statement on Schedule 14D-9, which was
mailed to stockholders of Fuisz on July 30, 1999.

    On July 25, 1999, the parties executed the merger agreement and, on July 26,
1999, publicly announced the transaction.

    On July 30, 1999, Acquisition Sub commenced the tender offer. On August 26,
1999, the tender offer expired. On September 3, 1999, Biovail and Acquisition
Sub accepted for payment at $7.00 per share 6,585,225 of the shares of Fuisz
common stock tendered pursuant to the tender offer and notified the depositary,
ChaseMellon Shareholder Services, L.L.C., to promptly pay for the validly
tendered and accepted shares of Fuisz common stock in accordance with the tender
offer. Upon completion of the tender offer, the option shares and the purchase
price were disbursed pursuant to the escrow agreement and the Salisbury shares
and the Westbury shares were acquired.

FUISZ'S REASONS FOR THE MERGER; RECOMMENDATION OF THE FUISZ BOARD OF DIRECTORS

    Fuisz's board of directors believes the merger agreement and the
transactions contemplated thereby, are fair to and in the best interests of
Fuisz and its stockholders, has approved the merger agreement and the
transactions contemplated thereby and recommends that Fuisz's stockholders
approve and adopt the merger agreement and the transactions contemplated
thereby.

    In reaching its conclusion to enter into the merger agreement and to
recommend to Fuisz's stockholders to vote for the approval and adoption of the
merger agreement, the board of directors of

                                       30
<PAGE>
Fuisz considered a number of factors, each of which in the view of Fuisz board
of directors, supported its conclusion, including the following:

    - The amount, timing and form of consideration to be received by Fuisz
      stockholders in the merger.

    - The possibility that the consideration the Fuisz stockholders might obtain
      in a future transaction or through continued ownership of Fuisz shares if
      Fuisz were to remain independent would likely be less advantageous than
      the consideration they would receive in the merger, because of:

       (1) The present financial condition and needs, and the business and
           strategic objectives of Fuisz, as well as the risks involved in
           achieving those objectives;

       (2) The need for Fuisz to attract and retain management and skilled
           scientific personnel if it were to remain independent; and

       (3) The need for Fuisz to restructure its operations and the current
           financial market conditions and historical market prices, volatility
           and trading information with respect to Fuisz shares.

    - The historical market prices and trading activity of Fuisz shares over the
      weeks preceding the date of the public announcement of the merger
      agreement. If the fraction of a Biovail common share received for each
      Fuisz share in the merger is worth more than $7.00 per Fuisz share, the
      consideration payable in the merger represents a 113% premium over the
      closing price of the shares thirty days prior to the announcement, a 67%
      premium over the average closing price for the thirty days prior to the
      announcement and a 38.3% premium over the closing price one week prior to
      the announcement;

    - The fact that, under the merger agreement, stockholders may receive in the
      merger the benefit of any appreciation in Biovail's stock price over its
      trading price immediately prior to the date the merger agreement was
      signed, up to the level where Biovail stock to be received may be worth
      $7.50 per share.

    - The fact that, under the merger agreement, Fuisz may still receive offers
      from other interested bidders, if any, and may communicate with any such
      bidders if required to satisfy its fiduciary obligations to Fuisz's
      stockholders; and if Fuisz determines any such other bidder has made a
      superior offer, it may after giving notice to Biovail and an opportunity
      to match or exceed the alternative offer, elect to terminate the merger
      agreement and pay the break-up fee provided for in the merger agreement.

    - The likelihood of the proposed acquisition being consummated, in light of
      Biovail's prior purchase of significant number of shares of Fuisz common
      stock and the limited conditions to Biovail's obligation to consummate the
      merger once the offer has been consummated;

    - The terms of the merger agreement, including the minimal conditions to
      closing the merger once the conditions of the offer have been satisfied or
      waived;

    - The written opinion dated July 25, 1999 of Warburg Dillon Read to the
      special committee and the board of directors as to the fairness, from a
      financial point of view, of the consideration to be received in the
      transaction by the holders of Fuisz common stock, other than Biovail and
      its affiliates, as more fully described below under "Opinion of Financial
      Advisor to Fuisz."

    The foregoing discussion of the information and factors considered by the
board of directors of Fuisz is not meant to be exhaustive but includes the
material factors considered by the board of directors in reaching its
conclusions and recommendations. The members of the board of directors evaluated
the various factors listed above in light of their knowledge of the business,
financial condition and prospects of Fuisz and after discussions with the
Fuisz's management and legal and financial

                                       31
<PAGE>
advisors. In light of the number and variety of factors that the board of
directors considered in connection with its evaluation of the merger, the merger
agreement and the transactions contemplated thereby, the board of directors did
not find it practicable to assign relative weights to the foregoing factors, and
accordingly, the board of directors did not do so. In addition, individual
members of the board of directors may have given different weights to different
factors.

BIOVAIL'S REASONS FOR THE MERGER

    Biovail believes that the acquisition of Fuisz will strengthen Biovail's
position as a drug delivery company. Biovail believes that advanced drug
delivery technology will play an increasingly important role in the development
of new chemical entities. In addition to providing more consistent drug delivery
and improved efficacies, controlled-release drugs offer reduced side effects,
improved patient compliance, and more favorable pharmacoeconomics. As a result,
major pharmaceutical companies around the world are introducing an increasing
number of new chemical entities with controlled-release characteristics. Biovail
believes that this growing trend will create greater demand for advanced drug
delivery capabilities, through agreements for individual drugs and strategic
alliances. While demand for their sophisticated services accelerates, the number
of high quality drug delivery companies is declining as a result of increased
industry consolidation.

    Biovail believes that the acquisition of Fuisz will provide several
strategic benefits, including the following:

    ATTRACTIVE PORTFOLIO OF PROPRIETARY TECHNOLOGIES.  The acquisition of Fuisz
will significantly enhance Biovail's ability to apply a variety of advanced drug
delivery technologies and delivery formats to a substantially broader range of
drugs. Biovail believes these technologies are simpler and significantly more
flexible than competing technologies in the marketplace. Fuisz utilizes
proprietary technologies to formulate and taste mask drugs in a wide variety of
delivery formats, including rapid dissolve, enhanced absorption, and controlled
release. Access to this portfolio of proprietary drug delivery technologies,
including the patented CEFORM-TM- and Shearform-TM- technologies, will allow
Biovail immediately to expand its delivery platforms.

    LEVERAGING OF SCIENTIFIC KNOWLEDGE.  The acquisition of Fuisz will augment
Biovail's own scientific knowledge and expertise, enhancing Biovail's technology
and product development capabilities. Biovail believes that allowing its
scientists to work and share ideas with Fuisz scientists should enable Biovail
to increase and accelerate its technology and product development efforts.

    ACCESS TO CRITICAL PHARMACEUTICAL COMPANY RELATIONSHIPS.  The acquisition of
Fuisz significantly expands Biovail's network of pharmaceutical company
relationships, some of which were not readily available to Biovail based on its
existing business focus. Biovail plans on retaining these relationships and
expanding the depth and breadth of these arrangements where significant benefits
can be achieved.

    ADVANTAGEOUS OPERATIONAL LOCATIONS.  The acquisition of Fuisz provides
Biovail with a base for increased U.S. and international expansion
opportunities. Fuisz has entered into a non-binding letter of intent for the
sale of certain of its continental European operations and the rights to a
particular product.

    The Fuisz technology involves drug delivery platforms and the application of
such platforms to specific product development programs. Fuisz is currently
involved in 13 product development projects for a number of pharmaceutical
companies, which projects are at varying stages of development. Two of such
projects have been submitted for approval with the applicable regulatory
authorities, one of which was submitted to the Food and Drug Administration in
the United States in June 1998 and the other of which was submitted to the
Medical Control Agency in the United Kingdom in April 1998. Based on Biovail's
preliminary review of the technology and after discussions with management of
Fuisz, Biovail estimates that if the product development projects for the
remaining 11 projects proceed as currently

                                       32
<PAGE>
scheduled, these projects would be completed in accordance with Fuisz's
contractual obligations with the relevant customers during the next 12 months.
Although Biovail has commenced a review of the technology and the contractual
and scientific bases of these projects, it has not yet completed its review and,
accordingly, schedules for the completion of any one or more projects are only
estimates. Biovail has also retained a third-party to value the technology and
projects under accepted appraisal methodologies. Upon completion of Biovail's
review and the receipt of the appraisal, Biovail intends to prioritize
development efforts following the completion of the acquisition.

    The Fuisz technology has not been employed in any product which has received
regulatory approval to date. The completion of any of the current in-process
development projects involves significant risk and complex scientific issues.
Biovail cannot be certain that the technology can be commercially applied in any
products or that, if successfully applied, the pharmaceutical companies on whose
behalf Biovail is developing these projects will market the products
successfully. As is the case in most pharmaceutical development projects, it
will take a number of years to achieve viable commercial levels of production of
a product utilizing the Fuisz technology due to the lengthy time associated with
manufacturing approvals and strategic marketing partnering. As the revenue
stream from any such products will not be fully realized until the products are
approved and commercialized, this could take a significant number of years.
However, if successful, the application of the Fuisz technology will provide
Biovail with a source of income from both royalties and manufacturing
activities. To date Biovail has not yet determined the potential costs
associated with the successful commercialization of any of these projects.

    If successful, the Fuisz technology and products would be expected to have
extended life cycles. Because the Fuisz technology is based on drug delivery
technology, the technology and its application can be applied to numerous
products. Although the risk of technological feasibility is always present,
Biovail's strategy is to exploit the technology through numerous product
developments, which Biovail believes should result in the life of the technology
being at least fifteen years.

OPINION OF FINANCIAL ADVISOR TO FUISZ

    On July 25, 1999, the date of execution of the merger agreement, Warburg
Dillon Read delivered a written opinion to Fuisz's board of directors and
special committee to the effect that, as of that date and based on and subject
to various assumptions, matters considered and limitations described in its
opinion, the consideration to be received in the transaction by the holders of
Fuisz common stock, other than Biovail and its affiliates, was fair, from a
financial point of view, to such holders.

    The full text of Warburg Dillon Read's opinion describes, among other
things, the assumptions made, procedures followed, matters considered and
limitations on the review undertaken by Warburg Dillon Read. This opinion is
attached as Annex B and is incorporated in this document by reference. WARBURG
DILLON READ'S OPINION IS DIRECTED ONLY TO THE FAIRNESS, FROM A FINANCIAL POINT
OF VIEW, OF THE CONSIDERATION TO BE RECEIVED IN THE TRANSACTION BY THE HOLDERS
OF FUISZ COMMON STOCK, OTHER THAN BIOVAIL AND ITS AFFILIATES. THE OPINION DOES
NOT CONSTITUTE A RECOMMENDATION TO ANY HOLDER OF FUISZ COMMON STOCK AS TO HOW TO
VOTE WITH RESPECT TO MATTERS RELATING TO THE PROPOSED MERGER. Holders of Fuisz
common stock are encouraged to read this opinion carefully in its entirety. The
summary of Warburg Dillon Read's opinion described below is qualified in its
entirety by reference to the full text of its opinion.

    In arriving at its opinion, Warburg Dillon Read, among other things:

    - reviewed publicly available business and historical financial information
      relating to Fuisz and Biovail;

    - reviewed internal financial information and other data relating to the
      businesses and financial prospects of Fuisz and Biovail, including
      estimates and financial forecasts prepared by the

                                       33
<PAGE>
      management of Fuisz and estimates and financial forecasts prepared by the
      management of Biovail as adjusted by Fuisz, that were provided to Warburg
      Dillon Read by Fuisz and Biovail and not publicly available;

    - conducted discussions with members of the senior managements of Fuisz and
      Biovail;

    - reviewed publicly available financial and stock market data with respect
      to other companies in lines of business that Warburg Dillon Read believed
      to be generally comparable to those of Fuisz and Biovail;

    - compared the financial terms of the transaction with publicly available
      financial terms of other transactions that Warburg Dillon Read believed to
      be generally relevant;

    - reviewed the merger agreement; and

    - conducted other financial studies, analyses and investigations, and
      considered other information, as Warburg Dillon Read deemed necessary or
      appropriate.

    In connection with its review, with Fuisz's consent, Warburg Dillon Read did
not assume any responsibility for independent verification of any of the
information that Warburg Dillon Read was provided or reviewed for the purpose of
its opinion and relied on that information being complete and accurate in all
material respects. In addition, at Fuisz's direction, Warburg Dillon Read did
not make an independent evaluation or appraisal of any of the assets or
liabilities, contingent or otherwise, of Fuisz or Biovail, and was not furnished
with any evaluation or appraisal. With respect to the financial forecasts and
estimates that it reviewed, Warburg Dillon Read assumed, at Fuisz's direction,
that they were reasonably prepared on a basis reflecting the best currently
available estimates and judgments of the managements of Fuisz and Biovail as to
the future financial performance of Fuisz and Biovail. Warburg Dillon Read's
opinion is necessarily based on economic, monetary, market and other conditions
existing, and information available to Warburg Dillon Read, on the date of its
opinion.

    Warburg Dillon Read's opinion did not address Fuisz's underlying business
decision to effect the transaction or constitute a recommendation to
stockholders of Fuisz as to whether or not stockholders should have tendered
shares of Fuisz common stock in the tender offer or how stockholders should vote
with respect to the merger. At Fuisz's direction, Warburg Dillon Read was not
asked to, and did not, offer any opinion as to the material terms of, or the
obligations under, the merger agreement or the form of the transaction. Warburg
Dillon Read expressed no opinion as to the value of Biovail common shares when
issued in the merger or the price at which Biovail common shares will trade or
otherwise be transferable after the merger. In rendering its opinion, Warburg
Dillon Read assumed, with Fuisz's consent, that each of Fuisz, Biovail and
Acquisition Sub would comply with all material terms of the merger agreement and
that the transaction would be validly consummated in accordance with its terms.

    In connection with its engagement, at Fuisz's direction, Warburg Dillon Read
was not requested to, and did not, solicit third party indications of interest
with respect to the acquisition of all or a part of Fuisz. Representatives of
Fuisz advised Warburg Dillon Read that, prior to its engagement, Fuisz received
an indication of interest in the purchase of the outstanding shares of Fuisz
common stock from a third party which reflected a higher per share purchase
price than the consideration to be received in the transaction and which Fuisz's
special committee and board of directors determined not to pursue as a result of
various conditions and other factors. Fuisz's special committee and board of
directors therefore instructed Warburg Dillon Read not to consider that
indication of interest in arriving at its opinion. No other instructions or
limitations were imposed by Fuisz's board of directors or special committee upon
Warburg Dillon Read with respect to the investigations made or the procedures
followed by Warburg Dillon Read in rendering its opinion.

                                       34
<PAGE>
    In connection with rendering its opinion to Fuisz's board of directors and
special committee, Warburg Dillon Read performed a variety of financial analyses
which are summarized below. The following summary is not a complete description
of all of the analyses performed and factors considered by Warburg Dillon Read
in connection with its opinion. The preparation of a fairness opinion is a
complex process involving subjective judgments and is not necessarily
susceptible to partial analysis or summary description. With respect to the
analysis of selected publicly traded companies and the analysis of selected
transactions summarized below, no company or transaction used as a comparison is
either identical or directly comparable to Fuisz, Biovail or the transaction.
These analyses necessarily involve complex considerations and judgments
concerning financial and operating characteristics and other factors that could
affect the public trading or transaction values of the companies or transactions
concerned.

    Warburg Dillon Read believes that its analyses and the summary below must be
considered as a whole and that selecting portions of its analyses and factors or
focusing on information presented in tabular format, without considering all
analyses and factors or the narrative description of the analyses, could create
a misleading or incomplete view of the processes underlying Warburg Dillon
Read's analyses and opinion. None of the analyses performed by Warburg Dillon
Read was assigned a greater significance by Warburg Dillon Read than any other.
Warburg Dillon Read arrived at its ultimate opinion based on the results of all
the analyses undertaken by it and assessed as a whole. Warburg Dillon Read did
not draw conclusions from or with regard to any one factor or method of
analysis.

    The type and amount of consideration payable in the transaction was
determined through negotiation between Fuisz and Biovail. Although Warburg
Dillon Read provided financial advice to Fuisz during the course of
negotiations, the decision to enter into the transaction was solely that of
Fuisz's board of directors and special committee. Warburg Dillon Read's opinion
and financial analyses were only one of many factors considered by Fuisz's board
of directors and special committee in their evaluation of the transaction and
should not be viewed as determinative of the views of Fuisz's board of
directors, special committee or management with respect to the transaction or
the consideration payable in the transaction.

    The following is a brief summary of the material analyses performed by
Warburg Dillon Read and reviewed with Fuisz's board of directors and special
committee in connection with its opinion dated July 25, 1999. THE FINANCIAL
ANALYSES SUMMARIZED BELOW INCLUDE INFORMATION PRESENTED IN TABULAR FORMAT. IN
ORDER TO FULLY UNDERSTAND WARBURG DILLON READ'S FINANCIAL ANALYSES, THE TABLES
MUST BE READ TOGETHER WITH THE TEXT OF EACH SUMMARY. THE TABLES ALONE DO NOT
CONSTITUTE A COMPLETE DESCRIPTION OF THE FINANCIAL ANALYSES. CONSIDERING THE
DATA SET FORTH BELOW WITHOUT CONSIDERING THE FULL NARRATIVE DESCRIPTION OF THE
FINANCIAL ANALYSES, INCLUDING THE METHODOLOGIES AND ASSUMPTIONS UNDERLYING THE
ANALYSES, COULD CREATE A MISLEADING OR INCOMPLETE VIEW OF WARBURG DILLON READ'S
FINANCIAL ANALYSES.

    The estimates of future performance of Fuisz and Biovail provided by the
managements of Fuisz and Biovail in or underlying Warburg Dillon Read's analyses
were not prepared for inclusion in this proxy statement-prospectus and are not
necessarily indicative of future results or values, which may be significantly
more or less favorable than those estimates. In performing its analyses, Warburg
Dillon Read considered industry performance, general business and economic
conditions and other matters, many of which are beyond the control of Fuisz and
Biovail. Estimates of the financial value of companies do not purport to be
appraisals or necessarily reflect the prices at which companies actually may be
sold.

                                       35
<PAGE>
    ANALYSIS OF SELECTED PUBLIC COMPANIES.

    Warburg Dillon Read compared selected financial information and operating
statistics for Fuisz with corresponding financial information and operating
statistics of the following 13 selected publicly held companies in the specialty
pharmaceutical industry:

    - Alkermes, Inc.

    - Enzon, Inc.

    - The Liposome Company, Inc.

    - SkyePharma plc

    - Advanced Polymer Systems, Inc.

    - Aradigm Corporation

    - Atrix Laboratories, Inc.

    - CIMA Labs Inc.

    - Columbia Laboratories, Inc.

    - Inhale Therapeutic Systems, Inc.

    - Noven Pharmaceutical, Inc.

    - Anesta Corporation

    - Penwest Pharmaceuticals Co.

Warburg Dillon Read reviewed enterprise values, calculated as equity value, plus
debt, less cash, as multiples of latest 12 months sales, earnings before
interest, taxes, depreciation and amortization, commonly known as EBITDA, and
earnings before interest and taxes, commonly known as EBIT. Warburg Dillon Read
reviewed equity values as a multiple of estimated calendar years 1999 and 2000
earnings per share, commonly known as EPS. Warburg Dillon Read also reviewed
ratios of estimated calendar year 2000 price to earnings over compound annual
EPS growth rates over a five-year period in the case of the selected companies
and a three-year period in the case of Fuisz.

    All multiples were based on closing stock prices on July 23, 1999. Estimated
financial data for the selected companies were based on publicly available
research analysts' estimates and estimated financial data for Fuisz were based
on Fuisz management estimates. Sales data for Fuisz were reviewed both including
and excluding Fuisz's distribution related sales since, unlike Fuisz, none of
the selected companies engage in distribution related sales as a material
portion of their businesses. EBIT data for the selected companies and EBITDA,
EBIT and EPS data for Fuisz were considered not meaningful (referred to as "NM")
due to operating losses of the selected companies and Fuisz for these
operational measures. This analysis indicated the following implied enterprise
value and equity value multiples and price to earnings over growth rates ratios
for the selected companies and Fuisz, as

                                       36
<PAGE>
compared to the implied multiples for Fuisz based on the consideration payable
in the transaction and the closing price of Biovail common shares on July 23,
1999:

<TABLE>
<CAPTION>
                                                                                           MULTIPLES OR PERCENTAGE FOR
                                                       IMPLIED MULTIPLES OR                   FUISZ IMPLIED BY THE
                                                          PERCENTAGE FOR        IMPLIED     CONSIDERATION PAYABLE IN
                                                        SELECTED COMPANIES     MULTIPLES               THE
                                                             (MEDIAN)          FOR FUISZ     TENDER OFFER AND MERGER
                                                       ---------------------  -----------  ---------------------------
<S>                                                    <C>                    <C>          <C>
ENTERPRISE VALUES:
Latest 12 months sales (including distribution
  related sales).....................................              8.2x              2.7x                 3.2x
Latest 12 months sales (excluding distribution
  related sales).....................................              8.2x                                 194.4x
Latest 12 months EBITDA..............................             37.2x               NM                   NM
Latest 12 months EBIT................................               NM                NM                   NM

EQUITY VALUES:
Estimated calendar year 1999 EPS.....................             30.4x               NM                   NM
Estimated calendar year 2000 EPS.....................             20.4x             24.7x                29.9x
Estimated calendar year 2000 price-to-earnings over
  five-year (in the case of the selected companies)
  and three-year (in the case of Fuisz) estimated
  compound annual EPS growth rates...................               42%               46%                  56%
</TABLE>

    Warburg Dillon Read also compared selected financial information and
operating statistics for Biovail with corresponding financial information and
operating statistics of the following 12 selected publicly held companies in the
specialty pharmaceutical industry:

    - Allergan, Inc.

    - Alpharma Inc.

    - ALZA Corporation

    - Andrx Corporation

    - Elan Corporation, plc

    - Forest Laboratories, Inc.

    - ICN Pharmaceuticals, Inc.

    - JONES PHARMA INCORPORATED

    - Medicis Pharmaceutical Corporation

    - Mylan Laboratories Inc.

    - Roberts Pharmaceutical Corporation

    - Watson Pharmaceuticals, Inc.

Warburg Dillon Read reviewed enterprise values as multiples of latest 12 months
sales, EBITDA and EBIT, and equity values as a multiple of estimated calendar
years 1999 and 2000 EPS. Warburg Dillon Read also reviewed ratios of estimated
calendar year 2000 price to earnings over compound annual EPS growth rates over
a five-year period in the case of the selected companies and a three-year period
in the case of Biovail. All multiples were based on closing stock prices on July
23, 1999. Estimated financial data for the selected companies were based on
publicly available research analysts' estimates and estimated financial data for
Biovail were based on Fuisz management estimates. This analysis

                                       37
<PAGE>
indicated the following implied enterprise value and equity value multiples and
price to earnings over growth rates ratios for the selected companies and
Biovail:

<TABLE>
<CAPTION>
                                                                            IMPLIED MULTIPLES OR
                                                                               PERCENTAGE FOR       IMPLIED MULTIPLES
                                                                             SELECTED COMPANIES       OR PERCENTAGE
                                                                                  (MEDIAN)             FOR BIOVAIL
                                                                            ---------------------  -------------------
<S>                                                                         <C>                    <C>
ENTERPRISE VALUES:
Latest 12 months sales....................................................              5.3x                 13.4x
Latest 12 months EBITDA...................................................             18.5x                 27.8x
Latest 12 months EBIT.....................................................             20.4x                 30.6x

EQUITY VALUES:
Estimated calendar year 1999 EPS..........................................             24.9x                 24.2x
Estimated calendar year 2000 EPS..........................................             19.9x                 18.4x
Estimated calendar year 2000 price-to-earnings over five-year (in the case
  of the selected companies) and three-year (in the case of Biovail)
  estimated compound annual EPS growth rates..............................               76%                   59%
</TABLE>

    ANALYSIS OF SELECTED PRECEDENT TRANSACTIONS.

    Warburg Dillon Read reviewed the purchase prices and implied transaction
multiples in the following 12 selected transactions in the specialty
pharmaceutical industry announced since December 1997:

<TABLE>
<CAPTION>
                                              ACQUIROR                                                  TARGET
- ------------------------------------------------------  ------------------------------------------------------
<S>                                                     <C>
- - Solvay Pharmaceuticals, Inc.                          Unimed Pharmaceuticals, Inc.
- - Abbott Laboratories Inc.                              ALZA Corporation
- - Nordic Capital Svenska AB                             Nycomed Pharma AS
- - Gilead Sciences, Inc.                                 NeXstar Pharmaceuticals, Inc.
- - SkyePharma plc                                        DepoTech Corporation
- - ALZA Corporation                                      SEQUUS Pharmaceuticals, Inc.
- - Watson Pharmaceuticals, Inc.                          TheraTech Inc.
- - Mylan Laboratories Inc.                               Penederm Incorporated
- - Cardinal Health, Inc.                                 R.P. Scherer Corporation
- - Alpharma Inc.                                         Cox Pharmaceuticals
- - Elan, plc                                             Neurex Corporation
- - Elan, plc                                             Sano Corporation
</TABLE>

Warburg Dillon Read reviewed enterprise values in the selected transactions as
multiples of latest 12 months sales, EBITDA and EBIT. Warburg Dillon Read also
reviewed equity values as multiples of latest 12 months EPS and latest book
value. Sales data for Fuisz were reviewed both including and excluding Fuisz's
distribution related sales since, unlike Fuisz, none of the selected companies
engage in distribution related sales as a material portion of their businesses.
All multiples were based on publicly available information at the time of
announcement of the relevant transaction. EBITDA, EBIT and EPS data for Fuisz
were considered not meaningful (referred to as "NM") due to operating losses of
Fuisz for these operational measures. This analysis indicated the following
implied enterprise value and equity value multiples for the selected
transactions, as compared to the implied multiples for Fuisz

                                       38
<PAGE>
based on the consideration payable in the transaction and the closing price of
Biovail common shares on July 23, 1999:
<TABLE>
<CAPTION>
                                                                    IMPLIED MULTIPLES OF
                                                                     SELECTED COMPANIES
                                                      ------------------------------------------------
                                                          LOW         MEAN        MEDIAN       HIGH
                                                         -----        -----     -----------  ---------
<S>                                                   <C>          <C>          <C>          <C>
ENTERPRISE VALUES:
Latest 12 months sales (including distribution
  related sales)....................................        19.9x         1.0x         8.2x        6.7x
Latest 12 months sales (excluding distribution
  related sales)....................................        19.9x         1.0x         8.2x        6.7x
Latest 12 months EBITDA.............................         5.5x        31.6x        24.3x       84.6x
Latest 12 months EBIT...............................         7.1x        26.4x        22.3x       48.3x

EQUITY VALUES:
Latest 12 months EPS................................        29.3x        41.4x        38.8x       58.6x
Latest book value...................................         5.2x        10.9x         8.3x       20.6x

<CAPTION>
                                                       MULTIPLES FOR FUISZ IMPLIED
                                                                   BY
                                                      CONSIDERATION PAYABLE IN THE
                                                         TENDER OFFER AND MERGER
                                                      -----------------------------
<S>                                                   <C>
ENTERPRISE VALUES:
Latest 12 months sales (including distribution
  related sales)....................................                  3.2x
Latest 12 months sales (excluding distribution
  related sales)....................................                194.4x
Latest 12 months EBITDA.............................                   NM
Latest 12 months EBIT...............................                   NM
EQUITY VALUES:
Latest 12 months EPS................................                   NM
Latest book value...................................                  5.1x
</TABLE>

    DISCOUNTED CASH FLOW ANALYSES.

    Warburg Dillon Read performed a discounted cash flow analysis with respect
to Fuisz to estimate the present value of the unlevered, after-tax free cash
flows that Fuisz could generate based on Fuisz management estimates. The range
of estimated terminal values for Fuisz was calculated by applying terminal value
multiples of 12.0x, 13.0x and 14.0x to Fuisz's projected fiscal year 2003
EBITDA. The present value of the cash flows and terminal values were calculated
using discount rates of 30.0%, 35.0% and 40.0%. This analysis yielded the
following implied per share equity reference range for Fuisz, as compared to the
equity value implied for Fuisz based on the consideration payable in the
transaction and the closing price of Biovail common shares on July 23, 1999:

<TABLE>
<CAPTION>
IMPLIED PER SHARE EQUITY    PER SHARE EQUITY VALUE IMPLIED FOR
  REFERENCE RANGE FOR     FUISZ BASED ON CONSIDERATION PAYABLE IN
         FUISZ                    TENDER OFFER AND MERGER
- ------------------------  ---------------------------------------
<S>                       <C>
        $4.63-$10.19                         $7.00
</TABLE>

    Warburg Dillon Read also performed a discounted cash flow analysis with
respect to Biovail to estimate the present value of the unlevered, after-tax
free cash flows that Biovail could generate based on Biovail management
estimates, as adjusted by Fuisz. The range of estimated terminal values for
Biovail was calculated by applying terminal value multiples of 16.0x, 17.0x and
18.0x to Biovail's projected fiscal year 2003 EBITDA. The present value of the
cash flows and terminal values were calculated using discount rates of 10.0%,
12.5% and 15.0%. This analysis yielded the following implied per share equity
reference range for Biovail, as compared to the closing price of Biovail common
shares on July 23, 1999:

<TABLE>
<CAPTION>
IMPLIED PER SHARE EQUITY     PER SHARE CLOSING PRICE OF
   REFERENCE RANGE FOR                 BIOVAIL
         BIOVAIL           COMMON SHARES ON JULY 23, 1999
- -------------------------  -------------------------------
<S>                        <C>
        $53.44-$73.37                    $58.63
</TABLE>

    PREMIUMS ANALYSIS.

    Warburg Dillon Read reviewed the premiums paid in 12 selected merger and
acquisition transactions completed since December 1997 with transaction values
between approximately $70.0 million and $7.4 billion. This analysis indicated
the following premiums in the selected transactions based on the target
company's closing and average stock prices one day, one week and one month prior
to public announcement of the transaction, as compared to the implied premiums
for Fuisz based on

                                       39
<PAGE>
the stock price of Fuisz common stock one day, one week and one month prior to
July 23, 1999, the last trading day prior to public announcement of the
transaction:
<TABLE>
<CAPTION>
                                                                      PREMIUMS PAID IN SELECTED TRANSACTIONS
                                                    ---------------------------------------------------------------------------
<S>                                                 <C>        <C>        <C>        <C>        <C>        <C>        <C>
                                                             BASED ON CLOSING PRICES                BASED ON AVERAGE PRICES
                                                    ------------------------------------------  -------------------------------

<CAPTION>
                                                       LOW       MEAN      MEDIAN      HIGH        LOW       MEAN      MEDIAN
                                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------
<S>                                                 <C>        <C>        <C>        <C>        <C>        <C>        <C>
One Day Prior to Public Announcement..............      15.2%      48.8%      40.3%     157.3%      15.2%      48.8%      40.3%
One Week Prior to Public Announcement.............      12.9%      58.5%      43.5%     170.8%      14.7%      53.8%      45.9%
One Month Prior to Public Announcement............      30.9%      81.4%      67.5%     185.9%      23.2%      64.4%      56.7%

<CAPTION>

<S>                                                 <C>

                                                      HIGH
                                                    ---------
<S>                                                 <C>
One Day Prior to Public Announcement..............     157.3%
One Week Prior to Public Announcement.............     170.8%
One Month Prior to Public Announcement............     162.9%
</TABLE>

<TABLE>
<CAPTION>
                                                                              PREMIUMS IMPLIED FOR FUISZ
                                                                              IN TENDER OFFER AND MERGER
                                                                    -----------------------------------------------
<S>                                                                 <C>                     <C>
                                                                       BASED ON CLOSING
                                                                            PRICES          BASED ON AVERAGE PRICES
                                                                    ----------------------  -----------------------
One Day Prior to July 23, 1999....................................             23.1%                   23.1%
One Week Prior to July 23, 1999...................................             38.3%                   37.1%
One Month Prior to July 23, 1999..................................            113.3%                   67.3%
</TABLE>

    PRO FORMA MERGER ANALYSIS.

    Warburg Dillon Read analyzed the potential pro forma effects resulting from
the transaction, including the impact of the transaction on Biovail's projected
EPS for calendar years 2000 through 2004, based on estimates of Fuisz management
and estimates of Biovail management, as adjusted by Fuisz. The results of the
pro forma merger analysis suggested that the transaction could be dilutive, or
represent a reduction, to Biovail's estimated EPS in calendar year 2000 and
accretive, or represent an addition, to Biovail's estimated EPS in calendar
years 2001 through 2004. The actual results achieved by the combined company may
vary from projected results and the variations may be material.

    OTHER FACTORS.

    In rendering its opinion, Warburg Dillon Read also reviewed and considered,
among other things, historical and projected financial data for Fuisz and
Biovail and selected analysts' reports on Biovail, including analysts' 1999 and
2000 EPS estimates for Biovail.

    MISCELLANEOUS.

    Fuisz has agreed to pay Warburg Dillon Read for its services upon completion
of the transaction an aggregate financial advisory fee of $2.75 million. In
addition, Fuisz has agreed to reimburse Warburg Dillon Read for its reasonable
expenses, including reasonable fees and disbursements of its counsel, and to
indemnify Warburg Dillon Read and related parties against liabilities, including
liabilities under federal securities laws, relating to, or arising out of, its
engagement.

    Fuisz selected Warburg Dillon Read as financial advisor to the special
committee in connection with the transaction because Warburg Dillon Read is an
internationally recognized investment banking firm with substantial experience
in similar transactions. Warburg Dillon Read is continually engaged in the
valuation of businesses and their securities in connection with mergers and
acquisitions, leveraged buyouts, negotiated underwritings, competitive bids,
secondary distributions of listed and unlisted securities and private
placements.

    In the ordinary course of business, Warburg Dillon Read, its successors and
affiliates may actively trade the securities of Fuisz and Biovail for their own
accounts and the accounts of their customers and, accordingly, may at any time
hold a long or short position in these securities.

                                       40
<PAGE>
INTERESTS OF CERTAIN PERSONS IN THE MERGER

    In considering the recommendation of the Fuisz board of directors with
respect to the merger agreement, you should be aware that certain officers and
directors of Fuisz have interests in the offer and the merger that are different
from and in addition to your interests generally and which may present them with
certain conflicts of interest. In addition, certain officers of Fuisz are
expected to become officers of Biovail following the merger. The Fuisz board of
directors was aware of these interests and took these interests into account in
approving the offer, the merger agreement and the transactions contemplated
under the merger agreement.

    EMPLOYMENT AND COMPENSATION ARRANGEMENTS.  The employment agreements of Mr.
Michael Myers, Executive Vice President and President of the Pharmaceutical
Division, Mr. Stephen Willard, General Counsel and Mr. Rao S. Cherukuri,
Executive Vice President and President of the Consumer Healthcare Division,
provide for the acceleration of their compensation otherwise payable through the
term of their agreements and the vesting of all unvested stock options in the
event of a "change of control," which is defined to include the direct or
indirect beneficial ownership of 30% or more of the Fuisz common stock by any
person.

    Pursuant to Fuisz's 1991 Stock Option Plan, all outstanding stock options
become exercisable in full upon a consolidation, merger or sale of all or
substantially all of the assets of Fuisz in which Fuisz common stock are
exchanged for securities, cash or other property of another corporation.

    Mr. Patrick Scrivens, the Acting Chief Financial Officer, has executed a
consulting agreement with Fuisz entitling him to receive the compensation and
benefits provided under his previous employment agreement with Fuisz for the
term of the consulting agreement, which has been extended from its original
expiration date of October 19, 2000 by such number of whole months, rounded up,
that Mr. Scrivens serves as Acting Chief Financial Officer of Fuisz. This
obligation shall be a binding obligation on the successors and assigns of Fuisz
including any entity which may be merged with Fuisz.

    FUISZDRUGSTORE.COM.  On December 31, 1998, Fuisz entered into a stock
purchase agreement to sell all of the issued and outstanding share capital of
FuiszDrugstore.com Ltd., then a wholly-owned subsidiary of Fuisz, to Privateer
Ltd., a corporation owned by Richard C. Fuisz, M.D., Chairman of the Board of
Fuisz. At the closing, which took place in February 1999, Fuisz delivered the
shares, which were transferred to RxDrugstore.com Limited, and received
consideration of $100,000 in cash and 200,000 shares of common stock of
RxDrugstore.com (which represents 5% of the issued and outstanding shares of
common stock of RxDrugstore.com). Prior to the closing, FuiszDrugstore was
engaged in sales of drugstore products over the internet.

    In connection with the stock purchase agreement, in February 1999, Fuisz and
Privateer concluded a 20 year license agreement, which grants Privateer the
non-exclusive right to sell licensed products as defined in the license
agreement through the internet. The license covers all existing products of
Fuisz as well as certain additional products developed by Fuisz over the next
four years. In consideration for the license, Fuisz received a non-interest
bearing promissory note for $2.4 million, payable by Privateer in four annual
installments commencing on December 31, 1999.

    THE OPTION AGREEMENT.  On July 13, 1999, Biovail entered into an Option
Agreement with Dr. Fuisz. Under the Option Agreement, Dr. Fuisz granted to
Biovail an option to acquire 3,209,829 through 5:00 p.m. July 23, 1999 for an
aggregate cash purchase price of $22,468,803. Contemporaneous with entering into
the Option Agreement, Dr. Fuisz made arrangements for the option shares to be
placed into escrow, pursuant to the Escrow Agreement, dated as of July 13, 1999,
by and among Dr. Fuisz, Biovail and the U.S. Trust Company, National
Association. On July 23, 1999, Biovail and Dr. Fuisz agreed to extend the option
period until 11:59 p.m. Prior to such time, Biovail placed the purchase price in
escrow and exercised the option. The purchase price and the option shares were
placed in escrow until the expiration of the waiting period under the
Hart-Scot-Rodino Antitrust

                                       41
<PAGE>
Improvements Act of 1976 and upon completion of the tender offer, the option
shares and the purchase price were disbursed pursuant to the terms of the escrow
agreement.

    The board of directors of Fuisz, at a meeting duly called and held on July
6, 1999 approved the Option Agreement in accordance with Section 203 of the DGCL
for the limited purpose of ensuring that the provisions of Section 203 of the
DGCL will not apply to the Option Agreement.

    THE SALISBURY AND WESTBURY LETTERS.  Pursuant to a letter of commitment from
Salisbury Ltd., dated as of July 23, 1999, Biovail committed to purchase 100,000
shares of common stock from Salisbury for an aggregate cash purchase price of
$700,000. Pursuant to a letter of commitment from Westbury Ltd., dated as of
July 23, 1999, Biovail committed to purchase 900,000 shares of common stock from
Westbury for an aggregate cash purchase price of $6,300,000. Biovail understands
that Mr. D. Tierny, a member of the board of directors of Fuisz is the
beneficial owner of the Salisbury and Westbury shares. Both the Salisbury shares
and the Westbury shares were purchased by Biovail upon completion of the tender
offer.

    THE CONSULTING AGREEMENT.  On July 13, 1999, Biovail and Dr. Fuisz entered
into an agreement providing that a Consulting Agreement between Biovail and Dr.
Fuisz will become effective if Biovail, having exercised the option, acquires
more than 50% of Fuisz. The Consulting Agreement provides for Dr. Fuisz to
provide business, strategic, marketing, business planning, special projects and
other consulting services to Biovail. The Consulting Agreement imposes certain
restrictions on Dr. Fuisz with respect to competitive activities and Biovail's
employees, customers and suppliers. If the Consulting Agreement becomes
effective, Dr. Fuisz is entitled to receive a fee of $2,000,000 on the first
anniversary of the effective date, provided that if Biovail has acquired an
interest of 80% or more in Fuisz prior to July 13, 2010 Dr. Fuisz will be
entitled to receive a fee of $500,000 per calendar quarter until he has received
aggregate fees under the Consulting Agreement of $6,000,000.

ABSENCE OF APPRAISAL RIGHTS

    In accordance with Section 262(b) of the DGCL, no stockholder of Fuisz
common stock will be entitled to appraisal rights.

GOVERNMENTAL REGULATION

    U.S. ANTITRUST

    Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended
(the "HSR Act"), and the rules promulgated thereunder, certain transactions,
including the merger, may not be consummated unless certain waiting period
requirements have been satisfied. On August 6, 1999, Fuisz and Biovail each
filed a Premerger Notification and Report Form pursuant to the HSR Act with the
Antitrust Division and the FTC and, on September 2, 1999, were notified by the
Antitrust Division and the FTC that the waiting period had expired.

    At any time before or after the effective time, the Justice Department or
the FTC or a private person or entity could seek under the antitrust laws, among
other things, to enjoin the merger or to cause Biovail to divest itself, in
whole or in part, of Fuisz or of other businesses conducted by Biovail. There
can be no assurance that a challenge to the merger will not be made or that, if
such a challenge is made, Biovail and Fuisz will prevail. The obligations of
Biovail and Fuisz to consummate the merger are subject to the condition that
there be no preliminary or permanent injunction or other order by any court or
governmental or regulatory authority of competent jurisdiction prohibiting
consummation of the merger.

                                       42
<PAGE>
    IRISH ANTITRUST

    Certain transactions, including the merger, may not be consummated until,
pursuant to the Irish Mergers Act, a notification has been made to the
Enterprise Minister, such further information, if any, as may be required has
been furnished and either the Enterprise Minister has issued a clearance for the
proposed transaction or a prescribed period following notification has expired
without the Enterprise Minister having prohibited the proposed transaction.
Biovail and Fuisz gave notification of the merger to the Enterprise Minister on
August 26, 1999 and requested that the Enterprise Minister issue a clearance. On
August 30, 1999, the Enterprise Minister issued the required clearance for the
proposed transaction.

    STOCK EXCHANGE APPROVALS

    The issuance of the Biovail common shares issuable upon the merger of Fuisz
and Acquisition Sub is conditional upon the approval of the New York Stock
Exchange and The Toronto Stock Exchange. An application to list the Biovail
common shares issuable pursuant to the merger has been made with the NYSE and
listing approval is expected to be obtained upon completion of the merger. The
TSE has conditionally approved the listing of the Biovail shares issuable
pursuant to the merger, subject to Biovail fulfilling certain customary
requirements of the TSE within the time periods specified by the TSE.

    CANADIAN SECURITIES LAWS

    Biovail will, to the extent necessary, apply for any necessary rulings or
orders of provincial securities regulatory authorities in Canada to permit the
issuance pursuant to the merger and subsequent resale by the holders of Biovail
common shares in all provinces of Canada without restriction by a shareholder
other than a "control person", provided that no unusual effort is made to
prepare the market for any such resale or to create a demand for the securities
which are the subject of any such resale and no extraordinary commission or
consideration is paid. Applicable Canadian securities legislation provides that
a person or company is, absent evidence to the contrary, deemed to be a control
person in relation to an issuer where the person or company alone or in
combination with others holds more than 20% of the outstanding voting securities
of the issuer.

ANTICIPATED ACCOUNTING TREATMENT

    The merger will be accounted for by Biovail under the "purchase" method of
accounting in accordance with Canadian and U.S. GAAP. Therefore, the aggregate
consideration paid by Biovail in connection with the merger will be allocated to
Fuisz's assets and liabilities based on their estimated fair values with any
excess being treated as goodwill. It is anticipated that under Canadian GAAP,
any allocation relating to in-process research and development will be amortized
over its useful life, currently estimated to be fifteen years. Under U.S. GAAP,
any such allocation will be written off at the time of the merger. The assets
and liabilities and results of operations of Fuisz will be consolidated into the
assets and liabilities and results of operations of Biovail subsequent to the
effective time. The allocation of in-process research and development, goodwill
and other intangibles reflected in the pro forma statements of operations and
notes thereto, represents estimates based on preliminary information and
analysis.

                                       43
<PAGE>
                              THE MERGER AGREEMENT

    The following is a summary of the material terms of the merger agreement, a
copy of which is attached as Annex A to this proxy statement-prospectus and is
incorporated in this proxy statement-prospectus by reference. This summary is
qualified by reference to the full text of the merger agreement. We urge you to
carefully read the merger agreement in its entirety.

THE MERGER AND ITS EFFECTIVE TIME

    The merger agreement provides that, subject to the approval of the merger
agreement by a majority of the stockholders of Fuisz and the satisfaction or
waiver of other conditions to the merger, Acquisition Sub will be merged with
and into Fuisz at the effective time, with Fuisz continuing as the surviving
corporation and as a wholly-owned subsidiary of Biovail. The "effective time" is
the time at which the merger becomes effective under Delaware law. At the
effective time, the certificate of incorporation and by-laws of Acquisition Sub
will be the certificate of incorporation and by-laws of the surviving
corporation until thereafter changed or amended. The directors of Acquisition
Sub immediately prior to the effective time will be the initial directors of the
surviving corporation, and the officers of Fuisz immediately prior to the
effective time will be the initial officers of the surviving corporation, in
each case until their successors are duly elected or appointed.

WHAT FUISZ STOCKHOLDERS WILL RECEIVE

    The merger agreement provides that, as of the effective time, by virtue of
the merger and without any action on the part of any Fuisz stockholder, each
Fuisz share issued and outstanding immediately prior to the effective time shall
be converted into the right to receive a fraction of a common share of Biovail
common shares, based on an exchange ratio determined as follows:

    - if the average trading price is less than or equal to $45.00, the exchange
      ratio shall equal 0.1556;

    - if the average trading price is greater than $45.00, but less than or
      equal to $58.625, the exchange ratio shall equal a fraction (rounded to
      the nearest ten-thousandth) determined by dividing $7.00 by the average
      trading price;

    - if the average trading price is greater than $58.625 but less than or
      equal to $62.81, the exchange ratio shall equal 0.1194; and

    - if the average trading price is greater than $62.81, the exchange ratio
      shall equal a fraction (rounded to the nearest ten-thousandth) determined
      by dividing $7.50 by the average trading price.

    The effect of the exchange ratios is indicated in the table below. If the
average trading price of Biovail's common shares is within the range indicated
in the left column, the value (based on that average trading price) of the
fractional Biovail common share you will receive for each share of Fuisz common
stock is set forth in the right column:

<TABLE>
<CAPTION>
   BIOVAIL AVERAGE TRADING PRICE           VALUE OF BIOVAIL FRACTIONAL SHARE
- ------------------------------------  -------------------------------------------
<S>                                   <C>
          less than $45.00                          less than $7.00
     between $45.00 and $58.625                          $7.00
    between $58.625 and $62.810                 between $7.00 and $7.50
         more than $62.810                               $7.50
</TABLE>

    Because of the average price calculation, at the time you vote on the merger
you may not know the number of Biovail common shares that you will receive in
the merger.

    The term "average trading price" means the average of the daily closing
prices per share of Biovail common shares on the NYSE Composite Transactions
Reporting System as reported in the Wall Street

                                       44
<PAGE>
Journal for the 15 trading days ending on the date immediately prior to the
second full NYSE trading day immediately before the date the merger is
consummated.

    The average of the daily closing prices of Biovail common shares for the
fifteen trading days ending October 13, 1999 is $51.67. You may obtain an
up-to-date average daily price by calling 1-800-322-2885.

    In addition, because the exchange ratio is based on an average and will be
determined two trading days before the closing date, it is possible that the
value of the stock consideration received by a Fuisz stockholder at the
effective time of the merger will be higher or lower than the value determined
on the calculation date, depending on the price movement of Biovail common
shares after the exchange ratio is calculated. There can be no assurance that
the price of Biovail common shares will not decline from the market price used
in calculating the exchange ratio.

    Cash will be paid for any fractional share of Biovail common shares to which
a Fuisz stockholder would otherwise be entitled.

MANNER OF CONVERTING FUISZ COMMON STOCK

    After the effective time of the merger, the exchange agent will mail a
transmittal letter to each record holder of shares of Fuisz common stock. The
transmittal letter will include instructions to be followed by Fuisz's
stockholders in exchanging their shares.

    After receiving the transmittal letters, Fuisz's stockholders will surrender
their stock certificates to the exchange agent for cancellation, together with a
signed copy of the transmittal letter. In return, they will receive certificates
for the appropriate number of shares of Biovail common shares. A holder of
unsurrendered Fuisz stock certificates will not be entitled to receive dividends
or other distributions payable by Biovail until those stock certificates are
surrendered. Upon surrender, those dividends or distributions will be paid to
the holder without interest. FUISZ STOCKHOLDERS SHOULD NOT SEND IN THEIR FUISZ
STOCK CERTIFICATES UNTIL THEY RECEIVE A TRANSMITTAL LETTER.

    If there is a transfer of Fuisz common stock that is not registered in
Fuisz's stock transfer records, then a certificate representing the proper
number of shares of Biovail common shares may be issued to the person to whom
the stock was transferred. However, before that payment is made, that person
must deliver the certificate representing the Fuisz common stock to the exchange
agent, along with documents that prove that the transfer has been properly made
and that all transfer taxes have been paid.

    In addition, if any Fuisz share certificate has been lost, stolen or
destroyed, then a certificate representing the proper number of shares of
Biovail common shares may be delivered to the Fuisz stockholder who claimed his
or her certificate was lost, stolen or destroyed. However, before that
certificate is mailed, the stockholder must deliver to the exchange agent an
affidavit stating that the certificate was lost, stolen or destroyed and an
appropriate indemnity or surety bond. All amounts paid to that stockholder will
be paid without interest and will be reduced by the amount of any applicable
withholding taxes.

    The merger agreement provides that each share of Fuisz common stock held by
Biovail, Acquisition Sub, any direct or indirect wholly-owned subsidiary of
Biovail, in the treasury of Fuisz or by any direct or indirect wholly-owned
subsidiary of Fuisz, if any, immediately prior to the effective time shall be
canceled and retired and shall cease to exist with no payment being made for the
shares.

    In addition, the merger agreement provides that each share of common stock
of Acquisition Sub issued and outstanding immediately prior to the effective
time shall, by virtue of the merger and without any action on the part of the
holder, be converted into and become the number of validly issued, fully paid
and nonassessable shares of common stock, par value $.01 per share, of the
surviving

                                       45
<PAGE>
corporation equal to the number of shares of common stock outstanding on a fully
diluted basis immediately prior to the effective time.

NO FRACTIONAL BIOVAIL COMMON SHARES

    No fractional shares of Biovail common shares will be issued in the merger.
Each holder of Fuisz common stock who otherwise would be entitled to receive a
fractional share of Biovail common shares pursuant to the merger will be paid an
amount in cash, without interest, in an amount equal to such fraction multiplied
by the average of the daily closing prices per share of Biovail common shares on
the NYSE Composite Transactions Reporting System for the fifteen trading days
ending on the third full NYSE trading day immediately before the closing date.

TREATMENT OF FUISZ STOCK OPTIONS

    The Fuisz board of directors and a committee of the board of directors have
adopted such resolutions, and shall take such other actions as may be necessary,
so that each outstanding option granted under Fuisz's 1991 Stock Option Plan,
1994 Director Stock Option Plan and 1994 Stock Incentive Plan, whether or not
then exercisable or vested, will, if not exercised within five business days, be
terminated immediately prior to the effective time.

INDEMNIFICATION AND INSURANCE

    The merger agreement provides that Biovail agrees that all rights to
indemnification now existing in favor of any director or officer of Fuisz or its
subsidiaries as provided in such person's certificate of incorporation or
by-laws, in an agreement between any such person and Fuisz, or otherwise in
effect on the date of the merger agreement shall survive the merger and shall
continue in full force and effect after the effective time. Biovail also agreed
to maintain directors' and officers' liability insurance similar to that
maintained by Fuisz for at least six years.

REPRESENTATIONS AND WARRANTIES

    The merger agreement contains various representations and warranties made by
Biovail and Fuisz that relate to, among other things:

    - corporate organization;

    - capitalization;

    - financial statements;

    - public filings;

    - conduct of business;

    - compliance with laws;

    - litigation;

    - non-contravention;

    - consents and approvals;

    - opinions of financial advisors

    - brokers;

    - undisclosed liabilities; and

    - the absence of certain changes with respect to Fuisz since March 31, 1999.

                                       46
<PAGE>
CONDUCT OF BUSINESS OF FUISZ PRIOR TO THE EFFECTIVE TIME

    The merger agreement provides that during the period from the date of the
merger agreement to the effective time, Fuisz will conduct its operations in the
ordinary course of business consistent with past practice. In addition, subject
to certain exceptions, Fuisz will not, prior to the effective time, without the
prior written consent of Biovail:

    - amend its organizational documents;

    - modify existing compensation arrangements except in the ordinary course of
      business consistent with past practice;

    - acquire or dispose of any assets;

    - incur, assume or pre-pay any debt;

    - modify, amend or terminate any material contracts;

    - change its accounting methods;

    - adopt a plan of liquidation; or

    - take certain other actions.

NO SOLICITATION

    TAKEOVER PROPOSALS.  The merger agreement provides that neither Fuisz nor
any of its subsidiaries has any agreement, arrangement or understanding
regarding an Acquisition Transaction, as defined below, with any party
expressing an interest in an Acquisition Transaction that, directly or
indirectly, would be violated, or require any payments, by reason of the
execution, delivery and/or consummation of the merger agreement. Fuisz will and
will cause its subsidiaries and its and their agents to immediately cease any
existing discussions or negotiations with any third party other than Biovail or
Acquisition Sub conducted before the execution of the merger agreement with
respect to any Acquisition Transaction. Fuisz will not, and Fuisz will cause its
subsidiaries and its and their agents not to, directly or indirectly:

    - solicit, initiate, continue, facilitate or encourage (including by way of
      furnishing or disclosing non-public information) any inquiries, proposals
      or offers from any third party with respect to, or that could reasonably
      be expected to lead to, (1) any acquisition or purchase of 25% or more of
      the assets or business of Fuisz and its subsidiaries, taken as a whole or
      a 25% or more voting equity interest in (including by way of a tender
      offer), or (2) any amalgamation, merger, consolidation or business
      combination with, or any recapitalization or restructuring, or any similar
      transaction involving, Fuisz (clauses (1) and (2) are referred to
      collectively as an "Acquisition Transaction"); or

    - negotiate, explore or discuss in any way with any third party with respect
      to any Acquisition Transaction or enter into, approve or recommend any
      agreement, arrangement or understanding requiring Fuisz to abandon,
      terminate or fail to consummate the offer and/or the merger or any other
      transaction contemplated under the merger agreement.

    SUPERIOR PROPOSALS.  However, at any time prior to the special meeting,
Fuisz may, in response to an unsolicited written proposal from a third party
with respect to an Acquisition Transaction involving the acquisition of all or
substantially all of the common stock, or all or substantially all of the assets
of Fuisz and its subsidiaries:

    - furnish or disclose non-public information to such third party;

    - negotiate, discuss or otherwise communicate with such third party; and

                                       47
<PAGE>
    - in the case of an unsolicited tender offer for Fuisz common stock,
      withdraw or modify, or resolve to withdraw or modify, in a manner adverse
      to Biovail the approval or recommendation of the merger agreement and the
      transactions contemplated under the merger agreement or recommend, or
      resolve to recommend, such Acquisition Transaction with a third party to
      stockholders, including disclosing to Fuisz's stockholders such position
      contemplated by Rules 14d-9 and 14e-2 promulgated under the Exchange Act,
      in each case only if the board of directors of Fuisz determines reasonably
      and in good faith that such proposal is a Superior Proposal.

    A proposal with respect to such Acquisition Transaction is a "Superior
Proposal" if after consultation with and based, as to legal matters, upon advice
of outside counsel, that it is required to do so in the exercise of its
fiduciary obligations and after consultation with its financial advisor, that
such proposed Acquisition Transaction or tender offer is more favorable to the
stockholders from a financial point of view than the transaction contemplated
under the merger agreement, including any adjustment to the terms and conditions
proposed by Biovail and Acquisition Sub in response to such proposed Acquisition
Transaction.

    Prior to furnishing or disclosing any non-public information to such third
party, Fuisz shall receive from such third party an executed confidentiality
agreement with terms no less favorable in the aggregate to Fuisz than those
contained in the Confidentiality Agreement between Fuisz and Biovail, but which
confidentiality agreement shall not provide for any exclusive right to negotiate
with Fuisz or any payments made by Fuisz. Fuisz shall give Biovail one day's
written notice prior to entering into any such confidentiality agreement. Fuisz
shall provide to Biovail copies of all such non-public information delivered to
such third party concurrently with such delivery.

    Notwithstanding the above, the board of directors of Fuisz will not, and
Fuisz will not, withdraw or modify, or resolve to withdraw or modify, in a
manner adverse to Biovail the approval or recommendation of the merger agreement
or any of the transactions contemplated under the merger agreement, or
recommend, or resolve to recommend, an Acquisition Transaction with a third
party to the stockholders or enter into a definitive agreement with respect to a
Superior Proposal unless:

    - Fuisz has given Biovail three business days' notice of the intention of
      the board of directors to withdraw or modify, or resolve to withdraw or
      modify, in a manner adverse to Biovail the approval or recommendation of
      the merger agreement or any of the transactions contemplated under the
      merger agreement, or recommend, or resolve to recommend, an Acquisition
      Transaction with a third party to the stockholders or the intention of
      Fuisz to enter into such definitive agreement, as the case may be;

    - if Biovail makes a counter-proposal within such three business day period,
      the board of directors of Fuisz shall have determined, in light of any
      such counter-proposal, that the third party Acquisition Transaction
      proposal is still a Superior Proposal; and

    - Fuisz concurrently terminates the merger agreement in accordance with its
      terms and pays any termination fee required by the merger agreement.

    Fuisz shall promptly, but in any event within one day of Fuisz becoming
aware of same, advise Biovail of the receipt by Fuisz, any of the subsidiaries
or any of its or their agents of any inquiries or proposals relating to an
Acquisition Transaction or other solicitations. Fuisz shall promptly, but in any
event within one day of Fuisz becoming aware of same, provide Biovail with a
copy of any such inquiry or proposal in writing and a written statement with
respect to any such inquiries or proposals not in writing, which statement shall
include the identity of the parties making such inquiries or proposal and all
the material terms of the inquiry or proposal. Fuisz shall, from time to time,
promptly, but in any event within one day of Fuisz becoming aware of same,
inform Biovail of the status and content of and developments with respect to any
discussions regarding any Acquisition Transaction with a third party.

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<PAGE>
Fuisz shall, from time to time, promptly, but in any event within one day of
Fuisz becoming aware of same, inform Biovail in writing of:

    - the calling of meetings of the board of directors of Fuisz to take action
      with respect to such Acquisition Transaction;

    - the execution of any letters of intent, memoranda of understanding or
      similar non-binding agreements with respect to such Acquisition
      Transaction;

    - the waiver of any standstill agreement to which Fuisz is or becomes a
      party;

    - the determination by the board of directors of Fuisz to recommend to the
      stockholders that they approve or accept a Superior Proposal or withdraw
      or modify in a manner adverse to Biovail its approval or recommendation of
      the merger agreement or the transactions contemplated under the merger
      agreement;

    - the determination by Fuisz to publicly disclose receipt of a Superior
      Proposal; and

    - the waiver by Fuisz of any confidentiality agreement with a person
      proposing a Superior Proposal.

CONDITIONS TO THE MERGER

    The closing of the merger is subject to the satisfaction of several
conditions, including:

    - the holders of a majority of the outstanding shares of Fuisz's common
      stock must adopt the merger agreement and approve the merger;

    - Biovail and Fuisz must obtain all final regulatory approvals under
      applicable law;

    - there must be no legal restraint or prohibition preventing the closing of
      the merger;

    - a registration statement on Form F-4 registering the shares of Biovail
      common shares to be issued in the merger must be declared effective and no
      stop order suspending the registration statement's effectiveness may be in
      effect.

    Fuisz's obligation to complete the merger is subject to the satisfaction or
waiver of further conditions, including :

    - Biovail and Acquisition Sub shall have performed and complied in all
      material respects with all agreements, obligations and conditions required
      by the merger agreement to be performed or complied with by them on or
      prior to the closing date, except for those failures to so perform or
      comply that, individually or in the aggregate, would not either impair the
      ability of Biovail or Acquisition Sub to consummate the merger and the
      other transactions contemplated under the merger agreement or have a
      Material Adverse Effect on Biovail; and

    - Acquisition Sub shall have accepted for payment and paid for Fuisz common
      stock pursuant to the offer in accordance with the terms of the merger
      agreement, unless Acquisition Sub's failure to accept for payment and pay
      for Fuisz common stock results from Fuisz's breach of any provision of the
      merger agreement.

    The obligation of Biovail and Acquisition Sub to effect the merger is
subject to the satisfaction or waiver of each of the following additional
conditions prior to the effective time:

    - Fuisz shall have performed and complied in all material respects with all
      agreements, obligations and conditions required by the merger agreement to
      be performed or complied with by it on or prior to the closing date,
      except for those failures to so perform or comply which are not willful
      and those failures, whether or not willful, that, individually or in the
      aggregate, would not either

                                       49
<PAGE>
      impair Fuisz's ability to consummate the merger and the other transactions
      contemplated under the merger agreement or have a Material Adverse Effect
      on Fuisz; and

    - Acquisition Sub shall have accepted for payment and paid for Fuisz common
      stock pursuant to the offer in accordance with the terms of the merger
      agreement, unless Acquisition Sub's failure to accept for payment and pay
      for Fuisz common stock results from Acquisition Sub's breach of any
      provision of the merger agreement.

TERMINATION; EFFECT OF TERMINATION

    The merger agreement may be terminated and the merger may be abandoned at
any time prior to the effective time, whether before or after approval by the
stockholders of Fuisz:

    - by the written agreement of Biovail and Fuisz duly authorized by their
      respective boards of directors;

    - by either Biovail or Fuisz if, without fault of such terminating party,
      the merger is not consummated on or before March 31, 2000, which date may
      be extended by mutual consent;

    - by either Biovail or Fuisz, if any court of competent jurisdiction or
      other governmental body issues an order, other than a temporary
      restraining order, decree or ruling or takes any other action restraining,
      enjoining or otherwise prohibiting the merger, and such order, decree,
      ruling or other action has become final and nonappealable; or

    - by either Biovail or Fuisz, if the approval of a majority of the
      outstanding shares of Fuisz common stock cast at the special meeting or
      any adjournment is not obtained.

    TERMINATION BY BIOVAIL.  The merger agreement may be terminated and the
merger may be abandoned by action of the board of directors of Biovail, at any
time prior to the effective time, before or after the approval by the
stockholders of Fuisz, if:

    - Fuisz has willfully failed to perform in all material respects its
      covenants or agreements contained in the merger agreement which would have
      a Material Adverse Effect on Fuisz or materially adversely affect or delay
      the ability of Biovail, Acquisition Sub or Fuisz to consummate the merger,
      and Fuisz has not cured such breach within ten business days of notice by
      Biovail or Acquisition Sub; or

    - the board of directors of Fuisz fails to recommend the approval of the
      merger agreement and the merger to Fuisz's stockholders, withdraws or
      amends or modifies in a manner adverse to Biovail its recommendation or
      approval in respect of the merger agreement or the merger (it being
      understood that taking no position on a tender offer for Fuisz as
      contemplated by Rules 14d-9 and 14e-2 shall not be deemed a withdrawal,
      amendment or modification), or makes any recommendation with respect to an
      Acquisition Transaction, or the board of directors of Fuisz has resolved
      to take any of the foregoing actions and publicly discloses such
      resolution.

    TERMINATION BY FUISZ.  The merger agreement may be terminated and the merger
may be abandoned at any time prior to the effective time, before or after the
approval by the stockholders of Fuisz, by action of the board of directors of
Fuisz, if:

    - Biovail or Acquisition Sub fails to perform in all material respects its
      covenants or agreements contained in the merger agreement which would have
      a Material Adverse Effect on Biovail or materially adversely affect or
      delay the ability of Acquisition Sub to consummate the offer or of
      Biovail, Acquisition Sub or Fuisz to consummate the merger, and Biovail or
      Acquisition Sub has not cured such breach within ten business days after
      notice by Fuisz;

    - the representations or warranties of Biovail and Acquisition Sub contained
      in the merger agreement at the date of the merger agreement and as of the
      consummation of the offer with

                                       50
<PAGE>
      the same effect as if made at and as of the consummation of the offer,
      except as to any such representation or warranty which speaks as of a
      specific date, are not true and correct in any respect that is reasonably
      likely to have a Material Adverse Effect on Biovail, or if such
      representations and warranties are qualified by reference to materiality
      or a Material Adverse Effect on Biovail, are not true and correct; or

    - if (A) Fuisz proposes entering into a definitive agreement with respect to
      a Superior Proposal or the board of directors of Fuisz recommends a third
      party Acquisition Transaction which is an unsolicited all cash tender
      offer for any and all Fuisz common stock and which constitutes a Superior
      Proposal, (B) Fuisz gives Biovail the three business days' notice as
      required pursuant to the merger agreement, (C) if a counter-proposal was
      made by Biovail within such three business day period, the board of
      directors of Fuisz determined, in light of the counter-proposal, that the
      third party Acquisition Transaction (or proposal therefor) is still a
      Superior Proposal and (D) Fuisz has paid to Biovail by wire transfer or
      immediately available funds to an account specified by Biovail a fee of
      $5.5 million immediately prior to such termination.

    In the event of termination of the merger agreement and abandonment of the
merger pursuant to the merger agreement, no party or any of its directors or
officers shall have any liability or further obligation to any other party to
the merger agreement, except as provided in the merger agreement and except that
nothing in the merger agreement shall relieve any party from liability for any
breach of the merger agreement.

    FEES.  If Biovail terminates the merger agreement due to the board of
directors of Fuisz: (1) failing to recommend the approval of the merger
agreement and the merger to Fuisz's stockholders; (2) withdrawing, amending or
modifying in a manner adverse to Biovail its recommendation or approval in
respect of the merger agreement or the merger; (3) making any recommendation
with respect to an Acquisition Transaction; (4) resolving to take any of the
foregoing actions and publicly disclosing such resolution; then, in any such
case, Fuisz shall within two business days of such termination pay Biovail a fee
of $5.5 million.

    If the merger agreement is terminated due to:

    - any court of competent jurisdiction or other governmental body issuing an
      order, other than a temporary restraining order, decree or ruling or takes
      any other action restraining, enjoining or otherwise prohibiting the
      merger, and such order, decree, ruling or other action has become final
      and nonappealable, based on Fuisz's actions or omissions;

    - the approval of a majority of the outstanding shares of Fuisz common stock
      cast at the special meeting or any adjournment not being obtained;

    - Fuisz willfully failing to perform in all material respects its covenants
      or agreements contained in the merger agreement which would have a
      Material Adverse Effect on Fuisz or materially adversely affect or delay
      the ability of Acquisition Sub to consummate the offer or of Biovail,
      Acquisition Sub or Fuisz to consummate the merger, and Fuisz has not cured
      such breach within ten business days of notice by Biovail or Acquisition
      Sub; or

    - the existence of a breach of any representation or warranty of Fuisz
      contained in the merger agreement as of the consummation of the tender
      offer which cannot be or is not cured within ten business days of delivery
      to Fuisz of written notice of such breach;

    and prior to such termination, any person shall have made a proposal with
respect to an Acquisition Transaction with Fuisz or its stockholders, and, if
prior to or within twelve months after such termination Fuisz or any subsidiary
of Fuisz enters into a definitive agreement with a third party with respect to,
or consummates, an Acquisition Transaction, then Fuisz, as a condition to and
prior to

                                       51
<PAGE>
the earlier of entering into any such definitive agreement and consummating an
Acquisition Transaction, shall pay Biovail a fee of $5.5 million.

AMENDMENT

    The merger agreement may be amended by the parties at any time before or
after any required approval of matters in connection with the merger by the
stockholders of Fuisz; PROVIDED, HOWEVER, that after any such approval, no
amendment can be made that by law requires further approval by such stockholders
without the further approval of such stockholders. The merger agreement may be
amended by an instrument in writing signed on behalf of each of the parties
prior to the effective time with respect to any of the terms; PROVIDED, HOWEVER,
that, after the merger agreement is adopted by the Fuisz stockholders, no such
amendment or modification can change the amount or form of the consideration to
be paid pursuant to the merger agreement.

WAIVERS

    At any time prior to the effective time, any party may:

    - extend the time for the performance of any of the obligations or other
      acts of any other party;

    - waive any inaccuracies in the representations and warranties contained in
      the merger agreement or in any document delivered pursuant to the merger
      agreement; or

    - subject to the amendment provisions described above, waive compliance with
      any of the agreements of any other party or with any conditions to its own
      obligations.

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<PAGE>
          CERTAIN UNITED STATES AND CANADIAN INCOME TAX CONSIDERATIONS

CERTAIN U.S. FEDERAL INCOME TAX CONSIDERATIONS

    The following discussion is a summary of certain material U.S. federal
income tax consequences of the Merger and the ownership and disposition of
Biovail common shares to exchanging U.S. Holders (as defined below) of Fuisz
common shares who hold their Fuisz common shares as capital assets and will hold
their Biovail common shares after the merger as capital assets. This discussion
is based upon laws, regulations, rulings and decisions currently in effect, all
of which are subject to change, retroactively or prospectively.

    The discussion is for general information only and may not apply to certain
categories of shareholders of Fuisz subject to special treatment under the
Internal Revenue Code of 1986, as amended (the "Code"), such as Non-U.S. Holders
(as defined below), holders that are passthrough entities or investors in
passthrough entities, dealers or traders in securities or currencies, banks,
insurance companies, traders who elect to mark-to-market their securities,
persons whose "functional currency" is not the U.S. dollar, tax-exempt entities,
persons that hold Fuisz common shares (or will hold their Biovail common shares)
as a position in a straddle or as part of a "hedging," "integrated,"
"constructive sale," or "conversion" transaction and holders who acquired their
Fuisz common shares pursuant to the exercise of employee stock options or
otherwise as compensation. Moreover, the discussion summarizes only U.S. federal
income tax consequences and does not address any other federal tax consequences
or any state, local or other tax consequences. ACCORDINGLY, SHAREHOLDERS OF
FUISZ ARE URGED TO CONSULT THEIR OWN TAX ADVISORS TO DETERMINE THE SPECIFIC TAX
CONSEQUENCES OF THE MERGER AND THE OWNERSHIP AND DISPOSITION OF BIOVAIL COMMON
SHARES TO THEM, INCLUDING ANY FEDERAL, STATE, LOCAL OR OTHER TAX CONSEQUENCES
(INCLUDING ANY TAX RETURN FILING OR OTHER TAX REPORTING REQUIREMENTS) OF THE
MERGER AND THE OWNERSHIP AND DISPOSITION OF BIOVAIL COMMON SHARES.

    For purposes of the following discussion, the term "U.S. Holder" means a
beneficial owner of Fuisz common shares or, after the Merger, Biovail common
shares that is a U.S. citizen or resident (as determined for U.S. federal income
tax purposes), a corporation created or organized in or under the laws of the
United States or any political subdivision thereof, an estate the income of
which is includible in gross income for United States income tax purposes
regardless of its source or a trust, if a U.S. court is able to exercise primary
supervision over the administration of the trust and one or more United States
fiduciaries have the authority to control all substantial decisions of the
trust, or if the trust has a valid election in effect under applicable U.S.
Treasury Regulations to be treated as a United States person. A "Non-U.S.
Holder" means a beneficial owner of Fuisz common shares or Biovail common shares
other than a U.S. Holder.

CERTAIN U.S. FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER

    TAXABILITY OF THE MERGER

    A U.S. Holder of Fuisz common shares will recognize gain or loss pursuant to
the Merger equal to the difference between the fair market value of the Biovail
common shares received (including any fractional shares exchanged for cash) and
the shareholder's adjusted tax basis in the exchanged shares of Fuisz common
stock.

    CHARACTERIZATION OF GAIN OR LOSS

    The gain or loss recognized, if any, by a U.S. Holder of Fuisz common shares
pursuant to the Merger will be capital gain or loss and if, as of the date of
the Merger, the shareholder has held the Fuisz common shares surrendered for
more than one year, will be long-term capital gain or loss. The amount of any
gain or loss recognized and its character as short-term or long-term will be
calculated and determined separately for each identifiable block of shares
surrendered pursuant to the Merger.

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<PAGE>
Any gain or loss recognized by a U.S. Holder of Fuisz common shares will
generally be treated as United States source gain or loss. The deduction of
capital losses is subject to limitations.

    INFORMATION REPORTING AND BACKUP WITHHOLDING

    In general, reporting requirements will apply to any Biovail common shares
transferred within the United States (and in certain cases, outside of the
United States) pursuant to the Merger and received by a U.S. Holder of Fuisz
common shares, other than certain exempt recipients (such as corporations). In
addition, unless a U.S. Holder of Fuisz common shares complies with certain
reporting and/or certification procedures or is an exempt recipient under
applicable provisions of the Code and Treasury Regulations promulgated
thereunder, the U.S. Holder may be subject to withholding tax of 31% with
respect to any Biovail common shares received pursuant to the Merger. The amount
of any such backup withholding will be allowed as a credit against the U.S.
Holder's U.S. federal income tax liability.

CERTAIN U.S. FEDERAL INCOME TAX CONSEQUENCES OF OWNERSHIP AND DISPOSITION OF
  BIOVAIL COMMON SHARES

    TAXATION OF DIVIDENDS

    Subject to the following discussion of special rules applicable to "PFICs,"
U.S. Holders generally will treat the gross amount of any dividends, if any,
paid by Biovail, without reduction for Canadian withholding taxes, as ordinary
taxable income for U.S. federal income tax purposes. In certain circumstances,
however, U.S. Holders may be eligible to receive a foreign tax credit for the
Canadian withholding taxes and, in the case of a corporate U.S. Holder owning
10% or more of the voting shares of Biovail, for a portion of the Canadian taxes
paid by Biovail itself. Dividends paid by Biovail, if any, will not qualify for
the dividends received deduction otherwise available to corporate U.S. Holders.

    The amount of any dividend paid in Canadian dollars will equal the United
States dollar value of the Canadian dollars received calculated by reference to
the exchange rate in effect on the date the dividend is received by the U.S.
Holder, regardless of whether the Canadian dollars are converted into United
States dollars. If the Canadian dollars received as a dividend are not converted
into United States dollars on the date of receipt, a U.S. Holder will have a
basis in the Canadian dollars equal to its United States dollar value on the
date of receipt. Any gain or loss realized on a subsequent conversion or other
disposition of the Canadian dollars will be treated as ordinary income or loss.

    It is possible that, immediately after the Merger or at some future time,
Biovail will be at least 50% owned by United States persons. Dividends paid by a
foreign corporation that is at least 50% owned by United States persons may be
treated as United States source income (rather than foreign source income) for
foreign tax credit purposes to the extent the foreign corporation has more than
an insignificant amount of United States source income. The effect of this rule
may be to treat a portion of any dividends paid by Biovail as United States
source income. The Code permits a U.S. Holder entitled to benefits under the
Canada-U.S. Income Tax Treaty to elect to treat any Biovail dividends as foreign
source income for foreign tax credit limitation purposes if the dividend income
is separated from other income items for purposes of calculating the U.S.
Holder's foreign tax credit. U.S. Holders should consult their own tax advisors
about the desirability of making, and the method of making, such an election.

    SALE, EXCHANGE OR OTHER DISPOSITION

    Subject to the following discussion of special rules applicable to "PFICs,"
U.S. Holders will recognize capital gain or loss on the sale, exchange or other
disposition of Biovail common shares. Such gain or loss will be long-term
capital gain or loss if the common shares have been held for more than one year.
Any gain or loss recognized by a U.S. Holder will generally be treated as United
States source gain or loss. The deduction of capital losses is subject to
limitations.

                                       54
<PAGE>
    PASSIVE FOREIGN INVESTMENT COMPANY CONSIDERATIONS

    A "passive foreign investment company" (a "PFIC") is any foreign corporation
if, after the application of certain "look-through" rules, (i) at least 75% of
its gross income is "passive income" or (ii) at least 50% of the average value
of its assets is attributable to assets that produce passive income or are held
for the production of passive income. The determination as to PFIC status is
made annually. If a U.S. Holder is treated as owning PFIC stock, the U.S. Holder
will be subject to special rules generally intended to eliminate the benefit of
the deferral of U.S. federal income tax that results from investing in a foreign
corporation that does not distribute all its earnings currently. These rules may
adversely affect the tax treatment to a U.S. Holder of dividends paid by Biovail
and of sales, exchanges and other dispositions of Biovail common shares, and may
result in other adverse federal income tax consequences.

    Biovail believes that it is not currently a PFIC and does not expect to
become a PFIC in the future. However, there can be no assurance that the
Internal Revenue Service will not successfully challenge Biovail's position or
that Biovail will not become a PFIC at some future time as a result of changes
in its assets, income or business operations.

    INFORMATION REPORTING AND BACKUP WITHHOLDING

    In general, reporting requirements will apply to dividends in respect of
Biovail common shares and the proceeds received on the disposition of Biovail
common shares paid within the United States (and in certain cases, outside the
United States) to U.S. Holders other than certain exempt recipients (such as
corporations), and a 31% backup withholding may apply to such amounts if the
U.S. Holder fails to provide an accurate taxpayer identification number or is
otherwise subject to backup withholding. The amount of any backup withholding
from a payment to a U.S. Holder will be allowed as a credit against the U.S.
Holder's U.S. federal income tax liability.

CANADIAN FEDERAL INCOME TAX CONSEQUENCES

    The following is a discussion of the material Canadian federal income tax
consequences of holding and disposing of Biovail common shares generally
applicable to certain U.S. Holders who acquire Biovail common shares in the
merger.

    This discussion only applies to a U.S. Holder of Biovail common shares who
for the purposes of the INCOME TAX ACT (Canada) (the "Canadian Tax Act") at all
relevant times:

    - is not, and is not deemed to be, resident in Canada;

    - deals at arm's length with Biovail;

    - holds Biovail common shares as capital property; and

    - does not use or hold and is not deemed to use or hold Biovail common
      shares in connection with the carrying on of a business in Canada,

    and who, for the purposes of the CANADA-U.S. INCOME TAX CONVENTION (the
"Convention") at all relevant times, is resident in the United States.

    Biovail common shares will generally be considered to be capital property to
a U.S. Holder for purposes of the Canadian Tax Act unless the U.S. Holder holds
Biovail common shares in the course of carrying on a business of trading or
dealing in securities or otherwise as part of a business of buying and selling
securities or the U.S. Holder acquired Biovail common shares as part of a
transaction considered to be an adventure or concern in the nature of trade. A
limited liability company may not be, and a partnership will not be, a U.S.
Holder that is resident in the United States for purposes of the Convention.

    This discussion does not apply to a U.S. Holder which is an organization
exempt from tax in the United States and described in Article XXI of the
Convention, a U.S. Holder which is a "financial

                                       55
<PAGE>
institution" as defined in the Canadian Tax Act for purposes of the
mark-to-market rules or a U.S. Holder which is a non-resident insurer carrying
on an insurance business in Canada and elsewhere.

    This discussion is based on the current provisions of the Canadian Tax Act
and the regulations thereunder in force as of the date hereof, the current
published administrative policies of Revenue Canada and all specific proposals
to amend the Canadian Tax Act and such regulations publicly announced by the
Minister of Finance (Canada). This discussion is not exhaustive of all possible
Canadian federal income tax consequences and, except for the announced
proposals, does not take into account or anticipate any changes in law, whether
by legislative, governmental or judicial action, and does not take into account
provincial, territorial or foreign tax consequences which may differ
significantly from those discussed herein. None of the announced proposals, if
enacted in the form proposed, would affect this discussion.

    U.S. HOLDERS OF BIOVAIL COMMON SHARES SHOULD CONSULT WITH THEIR OWN TAX
ADVISORS FOR ADVICE RELATING TO THE TAX CONSEQUENCES TO THEM ARISING FROM THEIR
OWN PARTICULAR CIRCUMSTANCES.

    DIVIDENDS.

    Subject to the provisions of the Convention, Canadian withholding tax at a
rate of 25% will be payable on dividends paid or credited, or deemed to be paid
or credited, by Biovail to a U.S. Holder on Biovail common shares. Under the
Convention, the withholding tax rate is generally reduced to 15% or, if the U.S.
Holder is a corporation that owns 10% or more of Biovail voting stock, to 5%.

    DISPOSITION OF BIOVAIL COMMON SHARES.

    Upon a disposition or deemed disposition by a U.S. Holder of Biovail common
shares, a capital gain (or loss) will generally be realized by the U.S. Holder
to the extent that the proceeds of disposition, less costs of disposition,
exceed (or are exceeded by) the adjusted cost base of the Biovail common shares
to such U.S. Holder. A deemed disposition of Biovail common shares will arise on
the death of a U.S. Holder.

    Subject to the provisions of the Convention, capital gains realized by a
U.S. Holder on a disposition or deemed disposition of Biovail common shares will
not be subject to tax under the Canadian Tax Act unless the Biovail common
shares constitute "taxable Canadian property" (as defined in the Canadian Tax
Act) to such U.S. Holder at the time of the disposition or deemed disposition,
in which case the capital gains will be subject to tax under the Canadian Tax
Act at rates which will approximate those payable by a Canadian resident.
Biovail common shares will not be "taxable Canadian property" to a U.S. Holder
at the time of a disposition or deemed disposition of such shares unless, at
that time, the stock is not listed on a prescribed stock exchange, which
includes the New York Stock Exchange, the Nasdaq, the Montreal Exchange and The
Toronto Stock Exchange, or, at any time during the five-year period immediately
preceding such time, the U.S. Holder, persons with whom the U.S. Holder did not
deal at arm's length or the U.S. Holder together with such persons, owned or had
a interest in or a right to acquire 25% of more of the issued shares of any
class or series of shares of capital stock of Biovail.

    Further, under the Convention, a U.S. Holder will not be subject to tax
under the Canadian Tax Act on a disposition or deemed disposition of Biovail
common shares unless, at the time of the disposition or deemed disposition, the
value of the Biovail common shares is derived principally from real property
situated in Canada. Biovail believes that the Biovail common shares do not now
derive their value principally from real property situated in Canada; however,
the determination must be made at the time of the disposition or deemed
disposition.

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<PAGE>
               UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION

    The following unaudited pro forma information reflects the historical
consolidated financial statements of Biovail and Fuisz, including their
respective subsidiaries, after accounting for the merger as a purchase
transaction and adjusting for the receipt of the proceeds from the issuance of
5,000,000 common shares of Biovail in a registered offering expected to be
received October 20, 1999 and adjusting for the expected sale of certain
European operations. You should read the following information together with the
historical financial statements of Biovail and Fuisz and all related notes. The
historical financial statements of Biovail and Fuisz are incorporated into this
proxy statement-prospectus by reference. See "WHERE YOU CAN FIND MORE
INFORMATION" on page 84.

    The unaudited pro forma combined balance sheet was prepared to illustrate
the estimated effects of the merger as at June 30, 1999 and for the unaudited
pro forma combined statements of operations for the six months ended June 30,
1999 and for the year ended December 31, 1998.

    The information presented on the following pages is not necessarily
indicative of the results of operations or financial position that might have
occurred had the merger actually closed on the assumed date. The information is
also not necessarily indicative of the future results of operations or financial
position of Biovail. The information does not include any adjustments to
historical results relating to cost savings or changes in business strategies
that may result from the merger.

    Based upon the terms of the merger agreement, and the resulting attributes
of the merger, the pro forma combined statements have been prepared in
accordance with Canadian GAAP using the purchase method of accounting for the
merger which is consistent in all material respects with the method expected to
be used under U.S. GAAP, except as indicated in Note 6. The unaudited pro forma
combined financial information of Biovail presented is derived from a
combination of Fuisz financial information, which is prepared in accordance with
U.S. GAAP, and Biovail financial information, which is prepared in accordance
with Canadian GAAP. With respect to Fuisz's financial information, the material
differences between U.S. GAAP and Canadian GAAP have been adjusted in the
preparation of the unaudited pro forma combined financial information of
Biovail.

    The balance sheets and statements of operations of Biovail and Fuisz have
been summarized and reclassified so that they may be presented on a consistent
basis for purposes of the unaudited pro forma combined financial information of
Biovail. The pro forma combined balance sheet as at June 30, 1999 gives effect
to the transactions set out in the merger agreement, more fully described in
Note 2, as though they had occurred on June 30, 1999. The pro forma combined
statements of operations for the six months ended June 30, 1999 and the year
ended December 31, 1998 give effect to these transactions as if they had
occurred on January 1, 1998.

    The allocation of the aggregate purchase price reflected in the unaudited
pro forma combined financial information of Biovail is preliminary. The actual
purchase price allocation to reflect the fair values of assets acquired and
liabilities assumed will be based upon management's evaluation of such assets
and liabilities following the effective time and, accordingly, the adjustments
that have been included will change based upon the final allocation of the total
purchase price. Such allocation may differ significantly from the preliminary
allocation included herein.

                                       57
<PAGE>
                       BIOVAIL CORPORATION INTERNATIONAL
                        PRO FORMA COMBINED BALANCE SHEET
                              AS AT JUNE 30, 1999
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                                    CANADIAN GAAP
                                                                                 ---------------------------------------------------
                                                                                                PRO FORMA ADJUSTMENTS
                                                                                 ---------------------------------------------------
                                                                                    GAAP      DIVESTITURE   PRO FORMA    PRO FORMA
                                      NOTES      BIOVAIL     FUISZ    SUBTOTAL   DIFFERENCES   NOTE 2.14   ADJUSTMENTS  COMBINED(1)
                                      -----     ---------  ---------  ---------  -----------  -----------  -----------  ------------
<S>                                <C>          <C>        <C>        <C>        <C>          <C>          <C>          <C>
                                                                            (THOUSANDS OF U.S. DOLLARS)
ASSETS
Current
  Cash & marketable securities...         2.3   $  86,358  $  16,119  $ 102,477                $  (2,836)   $ (12,000)   $  262,139
                                          2.1                                                                 (75,565)
                                          2.2                                                                   1,238
                                         2.13                                                                 248,825
  Accounts Receivable............         2.7      36,521     14,200     50,721                   (1,482)      (1,679)       47,560
  Inventories....................                  15,199      5,906     21,105                     (874)                    20,231
  Executive stock purchase plan
    loans........................                   3,025         --      3,025                                               3,025
  Deposits and prepaid
    expenses.....................                   3,264         --      3,264                                               3,264
  Other assets...................                      --      2,057      2,057                     (562)                     1,495
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
                                                  144,367     38,282    182,649          --       (5,754)     160,819       337,714
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
Long-term investments............                  10,055                10,055                                              10,055
Restricted cash..................                             11,394     11,394                                              11,394
Capital assets, net..............                  25,464     25,187     50,651                     (230)                    50,421
Intangible assets, net
  Purchased in-process research &
    development..................        2.11          --         --         --          --                   117,761       117,761
  Goodwill and other
    intangibles..................         2.4      24,578     46,291     70,869                  (29,835)     (16,456)       71,730
                                         2.11                                                                  47,152
  Deferred financing costs.......         2.6       4,494      2,080      6,574                                (2,080)        4,494
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
                                                   29,072     48,371     77,443          --      (29,835)     146,377       193,985
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
Other long-term assets...........                              2,017      2,017                     (201)          --         1,816
Assets held for sale.............         2.4          --         --         --          --       30,733      (29,835)       38,000
                                         2.11                                                                  37,102
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
                                                $ 208,958  $ 125,251  $ 334,209   $      --    $  (5,287)   $ 314,463    $  643,385
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
LIABILITIES
Current
  Accounts payable...............               $   7,300  $   8,143  $  15,443                $  (4,046)                $   11,397
  Accrued liabilities............                   5,561      8,242     13,803                     (970)                    12,833
  Income taxes payable...........                   1,293                 1,293                                               1,293
  Customer prepayments...........                  16,126      1,025     17,151                                              17,151
  Current portion of long-term
    debt and line of credit......         2.5         751      2,541      3,292          --          (62)      75,000        78,230
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
                                                   31,031     19,951     50,982          --       (5,078)      75,000       120,904
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
Long-term debt...................         2.9     125,856     88,247    214,103     (11,052)                                139,103
                                          2.9                                         2,062
                                          2.5                                                                 (66,010)
Other long-term liabilities......                      --      1,375      1,375                     (209)                     1,166
Shareholders' Equity.............         2.1      52,071     15,678     67,749                                78,650       382,212
                                         2.10                                                                 (24,668)
                                          2.2                                                                   2,666
                                          2.9                                        11,052
                                          2.9                                        (2,062)
                                         2.13                                                                 248,825
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
                                                $ 208,958  $ 125,251  $ 334,209          --    $  (5,287)   $ 314,463    $  643,385
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
                                                ---------  ---------  ---------  -----------  -----------  -----------  ------------
</TABLE>

- ------------------------
(1) Refer to Note 6 of the pro forma combined financial statements for a
    reconciliation between Canadian and U.S. GAAP.

                                       58
<PAGE>
                       BIOVAIL CORPORATION INTERNATIONAL
                   PRO FORMA COMBINED STATEMENT OF OPERATIONS
                     FOR THE SIX MONTHS ENDED JUNE 30, 1999
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                                                                                 CANADIAN GAAP
                                                                                   -----------------------------------------
                                                                                             PRO FORMA ADJUSTMENTS
                                                                                   -----------------------------------------
                                                                                       GAAP       DIVESTITURE    PRO FORMA
                                        NOTES      BIOVAIL     FUISZ    SUBTOTAL    DIFFERENCES    NOTE 2.14    ADJUSTMENTS
                                        -----     ---------  ---------  ---------  -------------  -----------  -------------
<S>                                  <C>          <C>        <C>        <C>        <C>            <C>          <C>
                                                            (THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE FIGURES)
Revenue
  Product Sales....................               $  37,541  $  21,007  $  58,548    $      --     $  (8,809)
  Research and development.........                  15,352      1,051     16,403
  Royalty, licensing fees and
    other..........................                  11,502     13,817     25,319                       (222)
                                                  ---------  ---------  ---------        -----    -----------  -------------
                                                     64,395     35,875    100,270           --        (9,031)           --
                                                  ---------  ---------  ---------        -----    -----------  -------------
Expenses
  Cost of goods sold...............                  12,861     12,751     25,612                     (3,236)
  Research and development.........                  11,783     12,385     24,168
  Selling, general and
    administrative.................                  12,525     12,639     25,164                     (3,848)
  Amortization of goodwill,
    in-process research &
    development, and other
    intangibles....................        2.12         105      2,817      2,922                     (1,949)        4,986
  Other operating expense..........                      --      5,711      5,711           --          (448)
                                                  ---------  ---------  ---------        -----    -----------  -------------
                                                     37,274     46,303     83,577           --        (9,481)        4,986
                                                  ---------  ---------  ---------        -----    -----------  -------------
Operating income (loss)............                  27,121    (10,428)    16,693           --           450        (4,986)
Interest expense, net..............         2.9      (5,449)    (2,606)    (8,055)        (737)           28
Foreign currency loss..............                      --     (1,683)    (1,683)                       737
                                                  ---------  ---------  ---------        -----    -----------  -------------
Income (loss) before income
  taxes............................                  21,672    (14,717)     6,955         (737)        1,215        (4,986)
Provision for (recovery of) income
  taxes............................                   1,308       (154)     1,154                        154            --
                                                  ---------  ---------  ---------        -----    -----------  -------------
Net income (loss)..................               $  20,364  $ (14,563) $   5,801    $    (737)    $   1,061     $  (4,986)
                                                  ---------  ---------  ---------        -----    -----------  -------------
                                                  ---------  ---------  ---------        -----    -----------  -------------
Net earnings (loss) per share......               $    0.83             $    0.22
Weighted average number of common
  shares outstanding...............                  24,534                25,921

<CAPTION>

                                       PRO FORMA
                                      COMBINED(1)
                                     -------------
<S>                                  <C>

Revenue
  Product Sales....................    $  49,739
  Research and development.........       16,403
  Royalty, licensing fees and
    other..........................       25,097
                                     -------------
                                          91,239
                                     -------------
Expenses
  Cost of goods sold...............       22,376
  Research and development.........       24,168
  Selling, general and
    administrative.................       21,316
  Amortization of goodwill,
    in-process research &
    development, and other
    intangibles....................        5,959
  Other operating expense..........        5,263
                                     -------------
                                          79,082
                                     -------------
Operating income (loss)............       12,157
Interest expense, net..............       (8,764)
Foreign currency loss..............         (946)
                                     -------------
Income (loss) before income
  taxes............................        2,447
Provision for (recovery of) income
  taxes............................        1,308
                                     -------------
Net income (loss)..................    $   1,139
                                     -------------
                                     -------------
Net earnings (loss) per share......    $    0.04
Weighted average number of common
  shares outstanding...............       30,921
</TABLE>

- ------------------------------

(1) Refer to Note 6 of the pro forma combined financial statements for a
    reconciliation between Canadian and U.S. GAAP.

                                       59
<PAGE>
                       BIOVAIL CORPORATION INTERNATIONAL
                   PRO FORMA COMBINED STATEMENT OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 1998
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                                                                                       CANADIAN GAAP
                                                                                           -------------------------------------
                                                                                                   PRO FORMA ADJUSTMENTS
                                                                                           -------------------------------------
                                                                                              GAAP      DIVESTITURE   PRO FORMA
                                              NOTES      BIOVAIL     FUISZ      SUBTOTAL   DIFFERENCES   NOTE 2.14   ADJUSTMENTS
                                              -----     ---------  ----------  ----------  -----------  -----------  -----------
<S>                                        <C>          <C>        <C>         <C>         <C>          <C>          <C>
                                                                 (THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE FIGURES)
Revenue
  Product Sales..........................               $  69,154  $   47,898  $  117,052   $      --    $ (19,209)
  Research and development...............                  32,070       4,334      36,404
  Royalty, licensing fees and other......                  11,612       8,987      20,599                     (833)
                                                        ---------  ----------  ----------  -----------  -----------  -----------
                                                          112,836      61,219     174,055          --      (20,042)
                                                        ---------  ----------  ----------  -----------  -----------  -----------
Expenses
  Cost of goods sold.....................                  28,542      27,924      56,466                   (7,152)
  Research and development...............                  17,490      24,058      41,548                      (39)
  Selling, general and administrative....                  17,455      24,052      41,507                   (9,334)
  Amortization of goodwill, in-process
    research & development, and other
    intangibles..........................        2.12         204       5,430       5,634                   (3,924)      10,203
                                                        ---------  ----------  ----------  -----------  -----------  -----------
                                                           63,691      81,464     145,155          --      (20,449)      10,203
                                                        ---------  ----------  ----------  -----------  -----------  -----------
Operating income (loss)..................                  49,145     (20,245)     28,900          --          407      (10,203)
Interest expense, net....................         2.9      (1,702)     (4,145)     (5,847)     (1,136)          57
Other income.............................         2.8                                             341
Foreign currency gain....................                      --       1,172       1,172                   (1,327)
                                                        ---------  ----------  ----------  -----------  -----------  -----------
Income (loss) before income taxes........                  47,443     (23,218)     24,225        (795)        (863)     (10,203)
Provision for income taxes...............                   2,024         361       2,385                     (225)
                                                        ---------  ----------  ----------  -----------  -----------  -----------
Net income (loss)........................               $  45,419  $  (23,579) $   21,840   $    (795)   $    (638)   $ (10,203)
                                                        ---------  ----------  ----------  -----------  -----------  -----------
                                                        ---------  ----------  ----------  -----------  -----------  -----------
Net earnings per share...................               $    1.70              $     0.78
Weighted average number of common shares
  outstanding............................                  26,641                  28,028

<CAPTION>

                                            PRO FORMA
                                           COMBINED(1)
                                           ------------
<S>                                        <C>

Revenue
  Product Sales..........................   $   97,843
  Research and development...............       36,404
  Royalty, licensing fees and other......       19,766
                                           ------------
                                               154,013
                                           ------------
Expenses
  Cost of goods sold.....................       49,314
  Research and development...............       41,509
  Selling, general and administrative....       32,173
  Amortization of goodwill, in-process
    research & development, and other
    intangibles..........................       11,913
                                           ------------
                                               134,909
                                           ------------
Operating income (loss)..................       19,104
Interest expense, net....................       (6,926)
Other income.............................          341
Foreign currency gain....................         (155)
                                           ------------
Income (loss) before income taxes........       12,364
Provision for income taxes...............        2,160
                                           ------------
Net income (loss)........................   $   10,204
                                           ------------
                                           ------------
Net earnings per share...................   $     0.31
Weighted average number of common shares
  outstanding............................       33,028
</TABLE>

- ------------------------

(1) Refer to Note 6 of the pro forma combined financial statements for a
    reconciliation between Canadian and U.S. GAAP.

                                       60
<PAGE>
                       BIOVAIL CORPORATION INTERNATIONAL
                NOTES TO PRO FORMA COMBINED FINANCIAL STATEMENTS
                                  (UNAUDITED)
   (THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE FIGURES AND UNLESS OTHERWISE
                                    STATED)

1.  BASIS OF PRESENTATION

    The accompanying pro forma statements have been prepared by the management
    of Biovail based on the unaudited consolidated financial statements of
    Biovail as at and for the six months ended June 30, 1999 and for the year
    ended December 31, 1998, respectively, and the unaudited consolidated
    financial statements of Fuisz as at and for the six months ended June 30,
    1999 and for the year ended December 31, 1998, adjusted to reflect
    classifications consistent with the presentation adopted by Biovail. The
    accounting policies used in the preparation of the pro forma statements are
    those disclosed in Biovail's audited and unaudited consolidated financial
    statements. The unaudited consolidated financial statements of Fuisz have
    been prepared in accordance with U.S. GAAP, and any material differences
    between Canadian GAAP and U.S. GAAP have been adjusted.

    In the opinion of the management of Biovail these pro forma statements
    include all adjustments necessary for a fair presentation of pro forma
    financial statements.

    The pro forma statements have been prepared using the purchase method of
    accounting for the merger in accordance with Canadian GAAP. A pro forma
    reconciliation is included at Note 6 reconciling to U.S. GAAP.

    The total purchase price will be allocated to the assets acquired and
    liabilities assumed, based on their respective fair values. The allocation
    of the aggregate purchase price reflected in the pro forma statements is
    preliminary and is based upon Biovail's closing share price of $58.625 on
    July 23, 1999, the business day immediately prior to announcement of the
    transaction. The actual purchase allocation to reflect the fair values of
    the assets acquired and liabilities assumed will be based upon management's
    evaluation of such assets and liabilities and, accordingly, the adjustments
    that have been included in the pro forma statements will change based upon
    the final allocation of the total purchase price. Such allocation may differ
    significantly from the preliminary allocation included herein. In addition,
    a significant difference between the Canadian GAAP and the U.S. GAAP
    calculation of the total purchase price may result. Under Canadian GAAP, the
    non-cash portion of the purchase price will be based on the average of the
    daily closing price of Biovail's stock on the New York Stock Exchange for
    the fifteen trading days ending on the date immediately prior to the second
    full trading day immediately preceding the closing date. Under U.S. GAAP,
    the purchase price is determined based on the period surrounding the
    announcement date.

    The pro forma statements also are not necessarily indicative of the results
    that actually would have been achieved if the transactions reflected therein
    had been completed on the dates indicated or the results, which may be
    obtained in the future. In preparing these pro forma statements, no
    adjustments have been made to reflect transactions which have occurred since
    the dates indicated or to reflect the operating benefits and general and
    administrative cost savings expected to result from combining the operations
    of Biovail and Fuisz.

    The pro forma statements should be read in conjunction with the description
    of the merger in this proxy statement-prospectus, the unaudited and audited
    consolidated financial statements of Biovail as at and for the six months
    ended June 30, 1999 and for the year ended December 31, 1998, respectively,
    and notes thereto, incorporated by reference in this proxy
    statement-prospectus, and the unaudited and audited consolidated financial
    statements for Fuisz as at and for the six month

                                       61
<PAGE>
    period ended June 30, 1999 and for the year ended December 31, 1998,
    respectively, and notes thereto, also incorporated by reference in this
    proxy statement-prospectus.

2   PRO FORMA ASSUMPTIONS AND ADJUSTMENTS

    The pro forma statements incorporate the following assumptions:

       -  Completion of the transactions contemplated by the merger agreement,
           as more fully described elsewhere herein, resulting in the
           combination of the businesses of Biovail and Fuisz.

       -  Absence of any material transactions by, or changes in operations of
           Biovail and Fuisz subsequent to June 30, 1999 other than as described
           elsewhere in this proxy statement-prospectus.

       -  Issuance of 5,000,000 common shares of Biovail in a registered
           offering expected to be completed October 22, 1999.

       -  Anticipated sale of certain of Fuisz's European sales and marketing
           operations.

       -  Management has commenced merger related planning activities and is not
           yet in a position to estimate merger related restructuring and
           integration costs, related to Biovail or Fuisz operations. These pro
           forma combined financial statements do not reflect the costs of any
           such plans.

    These pro forma statements give effect to the following assumptions and
    adjustments as if they had occurred on June 30, 1999 in respect of the pro
    forma consolidated balance sheet and on January 1, 1998 in respect of the
    pro forma consolidated statements of operations:

    These pro forma financial statements do not give effect to the consulting
    agreement between Dr. Fuisz and Biovail as Biovail expects that the
    incremental costs associated with the consulting agreement will be more than
    offset by known cost reductions in Fuisz due to reductions in executive
    positions which Biovail does not intend to replace.

    TRANSACTIONS GIVING EFFECT TO THE MERGER AND AGREEMENTS RELATED THERETO

2.1 The cash payment of $75,565 for 10,795,054 common shares of Fuisz,
    representing 49% of the shares of Fuisz common stock outstanding at July 25,
    1999, at $7.00 per share.

    The issuance by Biovail of 1,341,539 common shares with a pro forma value of
    $78,650 in exchange for the remaining 11,235,669 outstanding shares of Fuisz
    common stock as of July 25, 1999, after deducting 10,795,054 shares of
    common stock acquired for cash of $75,565, on the basis of an exchange ratio
    of 0.1194 of a common share of Biovail for each one share of Fuisz common
    stock.

2.2 Fuisz Stock Options

    All options issued by Fuisz as at July 25, 1999, which have not been
    exercised within five business days of the approval of the Merger Agreement,
    will be terminated immediately prior to the Effective Time. For purposes of
    these pro-forma financial statements, it is estimated that the maximum
    number of common shares that will be purchased as a result of the option
    exercises, is 380,891, which represents the number of options, as at June
    30, 1999, whose exercise price was lower than the exchange ratio times the
    market price of a Biovail common share at that date.

    These pro-forma financial statements assume that Fuisz will receive cash of
    $1,238 from the exercise of the 380,891 options. Following this exercise, it
    is assumed that Biovail will issue 45,478 common shares based on an exchange
    ratio of 0.1194 Fuisz common shares for each Biovail

                                       62
<PAGE>
    common share valued at $58.625 per Biovail common share. The difference of
    $1,428, between the fair value of the Biovail common shares issued of $2,666
    and the assumed proceeds of $1,238, forms part of the purchase price
    allocation.

2.3 To record the estimated costs of $12,000 associated with the transaction,
    which will be included as a cost of the acquisition.

2.4 To eliminate Fuisz intangible assets relating to continuing operations of
    $16,456 and $29,835 relating to the operations to be sold prior to the
    allocation of the purchase price of Biovail. Intangible assets includes
    $15,524 of net book value attributable to licenses and other intangible
    assets which have been included in the determination of the purchase price
    allocation of $202,015 described in adjustment 2.11.

2.5 To reclassify as a current liability the long-term portion of the Fuisz 7%
    Convertible Subordinated Debentures due October 15, 2004, outstanding at
    June 30, 1999, which will become payable, at the option of the holder, on
    completion of the merger, at its face amount of $75,000 plus accrued
    interest.

    The difference of $8,990 between the $66,010 carrying value at June 30, 1999
    and the $75,000 face value has been included as a cost of the acquisition.

2.6 To include as a cost of the acquisition the remaining unamortized deferred
    financing costs of $2,080 as at June 30, 1999 in respect of the 7%
    Convertible Subordinated Debentures due October 15, 2004, as the Company
    expects to be required to repay these debentures following the merger.

2.7 To adjust for a $1,679 contract receivable that in Biovail management's
    estimation is not collectible.

    GENERALLY ACCEPTED ACCOUNTING PRINCIPLE ("GAAP") DIFFERENCES

2.8 Under U.S. GAAP, unrealized gains and losses on Fuisz's available for sale
    securities are recorded as a component of comprehensive income. Under
    Canadian GAAP, unrealized gains and losses on marketable securities that are
    not subject to significant price risk are recorded as a component of net
    income (loss).

2.9 Under Canadian GAAP the value of the holder conversion option relating to
    the $75,000 Fuisz 7% Convertible Subordinated Debentures would be recorded
    as a permanent addition to shareholders' equity. The fair value of this
    option at October 22, 1997 (date of issuance), as determined under an option
    pricing model, was $11,052. Under Canadian GAAP, this amount is amortized on
    a yield basis to interest expense (six months to June 30, 1999--$737;
    1998--$1,136; 1997--$189) with a corresponding accretion in the principal
    outstanding of long-term debt.

    ADJUSTMENTS TO RECORD THE PURCHASE

2.10 To eliminate on consolidation the stockholders' equity attributable to
    Fuisz common stock in the amount of $15,678 and taking into consideration
    the cumulative Canadian GAAP adjustment of $8,990 described in (2.9) above.

2.11 To allocate the aggregate purchase price to Fuisz' net assets, in
    accordance with the purchase method of accounting as follows:

<TABLE>
<S>                                                                         <C>
Common shareholders' equity acquired before adjustments...................  $  15,678
Equity portion of convertible subordinated debentures, as noted in 2.9....     11,052
Accretion charged to income, as noted in 2.9..............................     (2,062)
                                                                            ---------
Common shareholders' equity acquired, as noted in 2.10....................     24,668
</TABLE>

                                       63
<PAGE>
<TABLE>
<S>                                                                         <C>
Fuisz's goodwill and other intangibles, as noted in 2.4...................    (46,291)
Write-off of deferred financing costs, as noted in 2.6....................     (2,080)
Cost of Fuisz stock options, as noted in 2.2..............................     (1,428)
Unamortized value of holder conversion option, as noted in 2.5............     (8,990)
Contract receivable, as noted in 2.7......................................     (1,679)
                                                                            ---------
Pro forma fair value of net tangible assets acquired......................    (35,800)
                                                                            ---------
Shares purchased for cash, as noted in 2.1................................     75,565
Fair value of shares to be issued, as noted in 2.1........................     78,650
Estimated acquisition costs, as noted in 2.3..............................     12,000
                                                                            ---------
Total purchase price......................................................    166,215
                                                                            ---------
Excess of purchase price over fair value of net tangible assets
  acquired................................................................  $ 202,015
                                                                            ---------
                                                                            ---------
Allocation of purchase price in excess of fair value of net tangible
  assets acquired:
Purchased in-process research and development.............................  $ 117,761
Goodwill..................................................................     37,152
Assets held for sale......................................................     37,102
Other intangibles.........................................................     10,000
                                                                            ---------
                                                                            $ 202,015
                                                                            ---------
                                                                            ---------
</TABLE>

    The allocation of purchase price in excess of fair value of net tangible
    assets acquired represents estimates based on preliminary information and
    analysis.

2.12 To record the incremental cost of amortization of goodwill, in-process
    research and development ("IPR&D"), and other intangibles arising from the
    merger, over amortization expense from continuing operations previously
    recorded by Fuisz (June 30, 1999--$5,854 less $868; December 31,
    1998--$11,708 less $1,506).

    Each category of intangible assets (goodwill, IPR&D and other intangibles)
    will be amortized over the useful life, which on a preliminary basis has
    been estimated by Biovail as follows:

<TABLE>
<S>                       <C>
Goodwill                  20 years, straight-line basis
IPR&D                     15 years, straight-line basis
Other intangibles         5 years, straight-line basis
</TABLE>

    The impact on the pro forma net loss of the total incremental amortization
    was a charge of $4,986 ($0.16 per share) for the six months ended June 30,
    1999 and $10,203 ($0.31 per share) for the year ended December 31, 1998. The
    actual amortization of goodwill arising from the transaction, will take
    place subsequent to the Effective Date.

SHARE OFFERING

2.13 Adjustment to record the issuance of 5,000,000 common shares of Biovail in
    a registered offering for assumed net proceeds of $248,825 expected to be
    received October 20, 1999.

SALE OF CERTAIN FUISZ OPERATIONS

2.14 To adjust for the expected divestiture of certain European operations,
    including Les Laboratoires Murat SA, Fuisz Pharma GmbH & Co and Istoria
    Farmaceutici SpA, and a particular product, CEBUTID, which Biovail's
    management is committed to completing as part of the acquisition of Fuisz.
    The value ascribed to these operations of $38 million represents
    management's best estimate of the net proceeds from the sale based on a
    current non-binding letter of intent which Fuisz has

                                       64
<PAGE>
    entered into with regard to these operations which management expects to be
    completed by November 1, 1999. The results of the European operations
    expected to be sold are excluded from Biovail's pro forma combined
    statements of operation. No gain or loss is expected to be reflected in
    Biovail's financial statements relating to this disposal as these operations
    have been included in the purchase price equation at their fair value.

    Biovail is also considering the divestiture or restructuring of other Fuisz
    operations but has not yet committed to a plan in this regard and
    accordingly no adjustments with regards to these operations have been
    reflected in these pro forma financial statements.

3.  SHAREHOLDER'S EQUITY AND COMMON SHARES

    The components of the pro forma shareholders' equity section as at June 30,
1999 are:

<TABLE>
<CAPTION>
                                                                                  PRO FORMA    PRO FORMA
                                                           BIOVAIL     FUISZ     ADJUSTMENTS    COMBINED
                                                          ---------  ----------  -----------  ------------
<S>                                            <C>        <C>        <C>         <C>          <C>
Common Shares................................  2.1        $  21,019  $      225   $  78,650    $  351,160
                                               2.10                                    (225)
                                               2.2                                    2,666
                                               2.13                                 248,825
Additional paid-in capital...................  2.10                     108,972    (108,972)
Warrants.....................................                 8,244       2,300      (2,300)        8,244
Retained earnings (accumulated deficit)......  2.10          22,059     (86,880)     86,880        22,059
Treasury stock, at cost......................  2.10                      (5,565)      5,565
Cumulative translation adjustment............  2.10             749      (3,374)      3,374           749
                                                          ---------  ----------  -----------  ------------
                                                          $  52,071  $   15,678   $ 314,463    $  382,212
                                                          ---------  ----------  -----------  ------------
                                                          ---------  ----------  -----------  ------------
</TABLE>

    The pro forma number of common shares outstanding after giving effect to the
    transaction is:

<TABLE>
<S>                                                                       <C>
Biovail shares outstanding at June 30, 1999.............................  24,352,019
Fuisz shares outstanding at July 25, 1999 subject to conversion of
  equivalent Biovail shares as noted in 2.1 (11,235,669 X 0.1194).......  1,341,539
Fuisz stock options exercised and converted to equivalent Biovail shares
  as noted in 2.2 (380,891 X 0.1194)....................................     45,478
Biovail shares issued pursuant to registration statement................  5,000,000
                                                                          ---------
Pro forma common shares outstanding.....................................  30,739,036
                                                                          ---------
                                                                          ---------
</TABLE>

4.  ITEMS NOT ADJUSTED

    The pro forma statements do not reflect any operating efficiencies, cost
    savings and other benefits, or merger related expenses anticipated by
    Biovail's management as a result of the merger except as described in
    adjustment 2.14.

    The pro forma statements do not reflect the additional funds required to
    finance the operating activities of Fuisz. The additional funds are expected
    to be raised from cash provided by existing operations and new banking
    facilities.

                                       65
<PAGE>
5.  PER SHARE INFORMATION

    The pro forma calculation of earnings (loss) per common share, basic and
    diluted, was based on the weighted average number of common shares
    outstanding during the period as calculated below:

<TABLE>
<CAPTION>
                                                                        PRO FORMA          PRO FORMA
                                                                      COMBINED FOR         COMBINED
                                                                    SIX MONTHS ENDED    FOR YEAR ENDED
                                                                      JUNE 30, 1999    DECEMBER 31, 1998
                                                                    -----------------  -----------------
<S>                                                                 <C>                <C>
Biovail weighted average shares outstanding.......................       24,534,000         26,641,000
Fuisz average shares outstanding as noted in 2.1, converted to
  equivalent Biovail shares (0.1194 exchange ratio)...............        1,341,539          1,341,539
Fuisz options exercised and converted to equivalent Biovail shares
  as noted in 2.2 (0.1194 exchange ratio).........................           45,478             45,478
Biovail shares issued pursuant to registration statement..........        5,000,000          5,000,000
                                                                    -----------------  -----------------
Total.............................................................       30,921,017         33,028,017
                                                                    -----------------  -----------------
                                                                    -----------------  -----------------
</TABLE>

6.  RECONCILIATION OF PRO FORMA RESULTS REPORTED UNDER CANADIAN GAAP WITH U.S.
    GAAP

    Biovail's accounting policies are consistent in all material aspects with
    U.S. GAAP with the following exceptions:

<TABLE>
<CAPTION>
                                                                    SIX MONTHS ENDED     YEAR ENDED
PRO FORMA NET INCOME RECONCILIATION                                  JUNE 30, 1999    DECEMBER 31, 1998
- ------------------------------------------------------------------  ----------------  -----------------
<S>                                                                 <C>               <C>
Net income--Canadian GAAP.........................................     $    1,139         $  10,204

Adjustments:
  Purchased in-process research and development(i)................          3,925             7,851
  Reversal/(Write off) of product launch costs(ii)................            238              (426)
  Collection of warrant receivable(iii)...........................         (1,397)           (1,179)
  Compensation cost for employee stock options(iv)................           (900)           (2,237)
  Reversal of amortization of conversion option(v)................            737             1,136
  Unrealized gain on marketable securities(vi)....................             --              (341)
                                                                          -------           -------
Net income--U.S. GAAP(i)..........................................     $    3,742         $  15,008
                                                                          -------           -------
                                                                          -------           -------
Net earnings per common share--U.S. GAAP(i)
  Basic...........................................................     $     0.12         $    0.46
  Diluted.........................................................     $     0.12         $    0.44

Net earnings per Fuisz equivalent share--U.S. GAAP(i)(vii)
  Basic...........................................................     $     0.01         $    0.07
  Diluted.........................................................     $     0.01         $    0.06

Common share effect of GAAP differences in period.................     $     0.09         $    0.15
</TABLE>

- ------------------------

    (i)  In process research and development.

       For the purpose of reporting under U.S. GAAP, companies are required to
       immediately write-off IPR&D. Under Canadian GAAP, IPR&D would have been
       capitalized and amortized over its useful life of fifteen years. For the
       six months ended June 30, 1999, under Canadian GAAP amortization of IPR&D
       was $3,925 and for the year ended December 31, 1998 was $7,851. Under
       U.S. GAAP, the IPR&D of $117,761 is written off immediately but has not
       been reflected in the reconciliation above. The allocation of IPR&D
       represents estimates based on preliminary information and analysis.

                                       66
<PAGE>
    (ii) For the purpose of reporting under U.S. GAAP, companies are required to
       write off certain product launch and advertising costs incurred during
       the year. The adjustment represents the portion of the product launch and
       advertising costs currently expensed under Canadian GAAP which have been
       previously written off under U.S. GAAP.

    (iii) For the purpose of reporting under U.S. GAAP, companies are required
       to record in paid-up capital an amount equal to the proceeds attributable
       to warrants as determined at the time of their issuance, along with an
       offsetting contra equity account, "Warrant subscription receivable". The
       contra account would be amortized over the life of the warrants. Under
       Canadian GAAP, the offsetting amount was recorded as an immediate
       reduction in retained earnings.

    (iv) For the purpose of reporting under U.S. GAAP, companies are required to
       account for the compensation expense arising from certain employee stock
       option plans under the provisions of Accounting Principles Board Opinion
       No.25. No such expense is required to be determined under Canadian GAAP.

    (v) For the purpose of reporting under U.S. GAAP, the value of the holder
       conversion option relating to convertible debentures is recorded as a
       component of the underlying debt instrument. Under Canadian GAAP, this
       value is recorded as a permanent addition to shareholders' equity. This
       amount is amortized on a yield basis to interest expense with a
       corresponding accretion in the principal outstanding of long-term debt.

    (vi) For the purpose of reporting under U.S. GAAP, unrealized gains and
       losses on Fuisz's available for sale securities are recorded as a
       component of comprehensive income. Under Canadian GAAP, such gains and
       losses are recorded as a component of net income.

    (vii) Equivalent per share data in respect of Fuisz common stock has been
       calculated by multiplying the Biovail per common share pro forma amounts
       by the exchange ratio of 0.1194.

    BALANCE SHEETS

    As at June 30, 1999, there were no material differences between balance
    sheet amounts calculated under Canadian GAAP and those calculated under US
    GAAP with the exception of IPR&D as discussed in (i) above, the product
    launch and advertising cost as discussed in (ii) above, the warrant
    subscription receivable as discussed in (iii) above, the warrant
    subscription receivable as discussed in (iii) above, the compensation cost
    for employee stock options as discussed in (iv) above, the amortization of
    the holder conversion option as discussed in (v) above, and the unrealized
    gain (loss) on investment available for sale as discussed in (vi) above.

    Pro forma shareholders' equity under U.S. GAAP as at June 30, 1999 consists
    of:

<TABLE>
<S>                                                              <C>
Share capital                                                    $ 351,160
Warrants.......................................................      8,244
Warrants subscription receivable...............................     (4,918)
Deficit........................................................    (96,398)
Other comprehensive loss.......................................       (764)
                                                                 ---------
                                                                 $ 257,324
                                                                 ---------
                                                                 ---------
</TABLE>

                                       67
<PAGE>
                      DESCRIPTION OF BIOVAIL CAPITAL STOCK

    The following includes information concerning our common shares, based on
Canadian law and a summary of certain provisions of the articles of amalgamation
and by-laws, each as amended. This information and summary do not purport to be
complete and are qualified in their entirety by reference to the full articles
of amalgamation, copies of which have been filed as exhibits to the registration
statement of which the proxy statement-prospectus forms a part.

GENERAL

    Our authorized capital stock consists of 120,000,000 common shares and an
unlimited number of class A special shares (the "Special Stock"). As of the
close of business on September 30, 1999, there were no shares of Special Stock
issued or outstanding. As of the close of business on September 30, 1999, there
were 24,251,112 common shares issued, of which none were owned by us or our
wholly-owned subsidiaries. We have no shares of capital stock reserved for
issuance. As of September 30, 1999 there were options outstanding for 2,298,592
common shares under our stock option plan. There are warrants outstanding for
3,737,500 of our common shares which we issued in connection with the initial
public offering of Intelligent Polymers. The exercise price for the common
shares under the warrants is $40.00 per share and the warrants are exercisable
from October 1, 1999 through September 30, 2002. Pursuant to registration
statements, Biovail will issue 5,000,000 common shares in a public offering. We
expect to receive the proceeds from this offering on October 20, 1999.

CAPITAL STOCK

    Each holder of common shares is entitled to one vote per share, which may be
given in person or by proxy, in the election of directors of Biovail and on all
other matters submitted to a vote of our shareholders. The holders of common
shares are entitled to share pro rata in any dividends declared by our board of
directors out of funds legally available therefor, subject to preferential
rights of the class A special shares. In the event of liquidation, dissolution
or winding up, whether voluntary or involuntary, of Biovail, the holders of
common shares are entitled to receive all of our assets remaining after the
payment of all of our liabilities, subject to the preferential right of the
class A special shares or any other shares which may rank prior to the common
shares. There are no preemptive or conversion rights, and the common shares are
not subject to redemption. All common shares now outstanding and to be
outstanding upon exercise of the warrants are, and will be, fully paid and non-
assessable.

    Our by-laws provide for certain of the rights of our shareholders in
accordance with statutory guidelines of the Business Corporations Act (Ontario)
which provide that such by-laws may be amended by a majority vote of the
shareholders or by a majority vote of the board of directors. Any amendment of
the by-laws by action of the board of directors must be submitted to the next
meeting of the shareholders whereupon the by-law amendment must be confirmed,
confirmed as amended or repealed by a majority vote of the shareholders.

    Shareholders do not have cumulative voting rights for the election of
directors. Therefore, the holders of more than 50% of the shares voting for the
election of directors could, if they choose to do so, elect all of the directors
and, in such event, the holders of the remaining shares would not be able to
elect any director.

    While the payment of dividends rests within the discretion of the board of
directors, we presently intend to retain all earnings, if any, in the
foreseeable future for use in the development of our business.

    ChaseMellon Shareholder Services, LLC and CIBC Mellon Trust Company are the
principal transfer agents and registrars for the common shares in the U.S. and
Canada, respectively.

                                       68
<PAGE>
    There is no provision in our articles or by-laws that would have the effect
of delaying, deferring or preventing a change in control in Biovail or that
would operate only with respect to an extraordinary corporate transaction
involving Biovail, such as a merger, reorganization, tender offer, sale or
transfer of substantially all of our assets or liquidation. However, certain
special requirements apply to the acquisition by a non-Canadian of control of a
Canadian business.

CLASS A SPECIAL SHARES

    The class A special shares may be issued from time to time in one or more
series, each series comprising the number of shares, designation, rights,
privileges, restrictions and conditions, including, without limitation, the rate
or amount of dividends or the method of calculating dividends, the dates of
payment, the redemption, purchase and/or conversion, and any sinking fund or
other provisions, subject to regulatory approval, if applicable, which the board
of directors determines by resolution. The class A special shares rank prior to
the common shares with respect to payment of dividends and distributions in the
event of the liquidation, dissolution or winding-up, whether voluntary or
involuntary, of Biovail. The class A special shares of any series may also be
given such other preferences, not inconsistent with our articles, over the
common shares and any other shares ranking junior to such class A special shares
as may be fixed by the directors. The class A special shares of any series may
be made convertible into common shares. Unless the directors otherwise
determine, or except as otherwise required by law, the holder of each share of a
series of class A special shares shall not be entitled to vote at any meeting of
shareholders.

    No class A special shares have been created or issued.

                                       69
<PAGE>
       COMPARATIVE RIGHTS OF FUISZ STOCKHOLDERS AND BIOVAIL SHAREHOLDERS

COMPARATIVE RIGHTS OF FUISZ STOCKHOLDERS AND BIOVAIL SHAREHOLDERS

    Following the merger, the stockholders of Fuisz, a Delaware corporation,
will become shareholders of Biovail, an Ontario corporation. The following is a
summary of certain material differences between the current rights of Fuisz
stockholders and Biovail shareholders. These differences arise from differences
between the DGCL and the Business Corporations Act (Ontario), R.S.O. 1990, C.B.
16, as amended (the "OBCA"), and between Biovail's articles and by-laws and the
Fuisz certificate and Fuisz by-laws. As Biovail is a reporting issuer in Canada,
it is also subject to the securities legislation of each Canadian province and
territory, as amended from time to time, and the rules, regulations, blanket
orders and orders having application to Biovail and forms made or promulgated
under the foregoing legislation, and the policies, bulletins and notices of
regulatory authorities administering such legislation. The following summary
does not purport to be a complete description of the rights of stockholders of
Fuisz and shareholders of Biovail under, and is qualified in its entirety by
reference to, the DGCL, the OBCA, the relevant provisions of Delaware and
Ontario law, the Fuisz certificate and Fuisz by-laws and the Biovail articles
and the Biovail by-laws. For information as to where the governing instruments
of Fuisz and Biovail may be obtained, see "WHERE YOU CAN FIND MORE INFORMATION."

AUTHORIZED SHARE CAPITAL

    The authorized share capital of Fuisz currently consists of 50,000,000
shares of common stock, $.01 par value per share.

    The authorized share capital of Biovail currently consists of 120,000,000
common shares and an unlimited number of Class A Special shares, issuable in one
or more series.

SHAREHOLDER VOTING RIGHTS

    Under the DGCL, each stockholder is entitled to one vote per share unless
the certificate of incorporation provides otherwise. In addition, the
certificate of incorporation may provide for cumulative voting at all elections
of directors of the corporation. Under the Fuisz certificate and Fuisz by-laws,
holders of Fuisz common stock are entitled to one vote per share on all matters,
and cumulative voting is not permitted. A quorum for a meeting of stockholders
consists of a majority of the shares entitled to vote, unless otherwise required
by law.

    Under Ontario law and the Biovail articles, holders of common shares are
entitled to one vote per share, either in person or by proxy, on each matter to
be voted on at shareholder meetings. Under Ontario law, unless the by-laws
otherwise provide, voting at a meeting of shareholders shall be by a show of
hands except where a ballot is demanded, either before or after the vote, by a
shareholder or proxyholder entitled to vote at the meeting. The Biovail by-laws
provide for voting by a show of hands except where a ballot is demanded. On a
vote by a show of hands, every shareholder or proxyholder present has one (1)
vote. On a vote by a ballot, every shareholder or proxyholder present has one
(1) vote for each share registered in his or her name or in the name of the
shareholder he or she represents. Accordingly, if no shareholder or proxyholder
requests to vote by ballot on a contentious matter at a meeting of shareholder,
those shareholders or proxyholders who attend the meeting can control the vote
despite the fact that they would not control the vote if the vote had been taken
by ballot.

    Under Ontario law, unless the by-laws otherwise provide, the holders of a
majority of the shares entitled to vote at a meeting of shareholders, present in
person or by proxy, constitute a quorum. The quorum requirement in the Biovail
by-laws for the transaction of business at a meeting of shareholders, other than
the appointment of the chairman of the meeting and the adjournment of the
meeting, is at least two persons holding or representing by proxy not less than
51% of the shares entitled to vote at

                                       70
<PAGE>
the meeting. Cumulative voting is only permitted in the election of directors,
if the articles of a corporation provide for it. The Biovail articles do not
provide for such cumulative voting.

SPECIAL MEETING OF SHAREHOLDERS

    Under the DGCL, a special meeting of stockholders may be called only by the
board of directors or by such person or persons as may be authorized by the
certificate of incorporation or by-laws. The Fuisz by-laws provide that a
special meeting of stockholders may be called by the Chairman of the Board, a
majority of the members of the board of directors or the President.

    The Fuisz by-laws provide that, except as otherwise provided by law, written
notice of each meeting of stockholders, whether annual or special, shall be
given not less than 10 nor more than 60 days before the date of the meeting to
each stockholder entitled to vote at such meeting.

    Under the DGCL, the vote of stockholders required to pass a resolution is
the affirmative vote of a majority of shares present in person or represented by
proxy at the meeting and entitled to vote on the subject matter unless a higher
or lower vote is required by the DGCL or a company's certificate of
incorporation. Under the DGCL, matters requiring approval by a majority of the
outstanding shares entitled to vote include approval of merger, sale, lease or
exchange of all or substantially all of the company's property or assets, and
amendment to the company's certificate of incorporation.

    Under Ontario law, a special meeting of shareholders may be called by the
directors, and the holders of not less than 5 percent of the issued shares of a
corporation that carry the right to vote at a meeting sought to be held may
require the directors to call a meeting of shareholders. Biovail is an "offering
corporation" within the meaning of the OBCA. Under the OBCA, notice of all
meetings of shareholders of an offering corporation must be sent not less than
21 days and not more than 50 days before the meeting to each shareholder
entitled to vote at the meeting. Under Ontario law, the directors may, by
resolution, fix a time not exceeding 48 hours (excluding Saturdays and holidays)
preceding any meeting or adjourned meeting of shareholders before which time
proxies to be used at such meeting must be deposited, provided that any period
of time so fixed is specified in the notice of meeting. The presence of the
provision could make it more difficult for a shareholder not attending a meeting
of shareholders in person to vote or change its vote in the period preceding the
meeting. The DGCL does not contain a similar provision.

    Under Ontario law, the vote of shareholders required to pass a resolution is
typically a majority or two-thirds of the votes cast on the resolution,
depending upon the action being voted upon. A "special resolution" is a
resolution passed at a meeting by not less than two-thirds of the votes cast by
the shareholders entitled to vote on the resolution. Matters requiring approval
by special resolution include amendments to the articles, adoption of an
amalgamation agreement, authorizing continuance in another jurisdiction,
adopting an arrangement, approving the sale, lease or exchange of substantially
all of the corporation's assets, approving certain "going private" transactions,
requiring voluntary winding up and authorizing the voluntary dissolution of the
corporation. Matters requiring approval by a majority of the votes cast include
confirmation, rejection or amendment of by-laws, election of directors, removal
of directors, appointment of auditors and fixing the remuneration of the
auditors.

PROPOSALS OF SHAREHOLDERS

    Under the Fuisz by-laws, except as otherwise provided by law, at any annual
or special meeting of stockholders only such business shall be conducted as
shall have been properly brought before such a meeting. In order to be properly
brought before the meeting, such business must have been either (A) specified in
the written notice of the meeting (or any supplement thereto) given to
stockholders of record on the record date for such meeting by or at the
direction of the board of directors, (B) brought before the meeting at the
direction of the board of directors or the chairman of the meeting or (C)
specified in a written notice given by or on behalf of a stockholder of record
on the record date for such meeting entitled to vote thereat or a duly
authorized proxy for such stockholder, in accordance

                                       71
<PAGE>
with all of the following requirements. A notice referred to in clause (C) must
be delivered personally to or mailed to and received at the principal executive
office of the corporation, addressed to the attention of the Secretary, not more
than ten (10) days after the date of the initial notice referred to in clause
(A) in the case of business to be brought before a special meeting of
stockholders, and not less than thirty (30) days prior to the first anniversary
date of the initial notice referred to in clause (A) to the previous year's
annual meeting, in the case of business to be brought before an annual meeting
of stockholders, provided, however, that such notice shall not be required to be
given more than sixty (60) days prior to an annual meeting of stockholders. Such
notice referred to in clause (C) shall set forth (1) a full description of each
such item of business proposed to be brought before the meeting, (2) the name
and address of the person proposing to bring such business before the meeting,
(3) the class and number of shares held of record, held beneficially and
represented by proxy by such person as of the record date for meeting (if such
date has been made publicly available) and as of the date of such notice, (4) if
any item of such business involves nomination for director, all information
regarding each such nominee that would be required to be set forth in a
definitive proxy statement filed with the SEC pursuant to Section 14 of the
Securities Act of 1934, as amended, or any successor thereto, and the written
consent of each such nominee to serve if elected, and (5) all other information
that would be required to be filed with the SEC if, with respect to the business
proposed to be brought before the meeting, the person proposing such business
was a participant in a solicitation subject to Section 14 of the Securities
Exchange Act of 1934, as amended, or any successor thereto. No business shall be
brought before any meeting of stockholders of the corporation otherwise than as
provided in the Fuisz by-laws.

    Notwithstanding the foregoing provisions, the board of directors is be
obligated to include information as to any nominee for director in any proxy
statement or other communication sent to stockholders.

    The chairman of the meeting may, if the facts warrant, determine and declare
to the meeting that any proposed item of business was not brought before the
meeting in accordance with the foregoing procedure and, if he should so
determine, he shall so declare to the meeting and the defective item of business
shall be disregarded.

    Under Ontario law, any shareholder entitled to vote at a meeting of
shareholders may submit to the corporation notice of any proposal to be raised
at a shareholders meeting. If the corporation solicits proxies in connection
with the meeting, the corporation shall set out the proposal in the management
information circular for the meeting provided that: (1) it is submitted at least
60 days before the anniversary of the date of the previous annual meeting (if
the proposal is to be raised at an annual meeting) or at least 60 days prior to
a meeting other than an annual meeting (if the proposal is to be raised at a
meeting other than the annual meeting), (2) it has not been submitted in the
last two years and (3) it is not being submitted for an improper purpose. A
proposal may include nominations for the election of directors if it is signed
by holders of not less than 5% of the voting shares.

CONSENT OF SHAREHOLDERS IN LIEU OF MEETING

    Under the DGCL, unless otherwise provided in the certificate of
incorporation, any action required or permitted to be taken at any meeting of
stockholders may instead be taken without a meeting, without prior notice or a
vote if a written consent to the action is signed by holders of outstanding
shares of stock having at least the number of votes that would be required to
authorize such action at a meeting of stockholders entitled to vote thereon were
present and voting. The Fuisz certificate prohibits action by written consent of
the stockholders.

    Under the OBCA, except where a written statement is submitted by a director
to the corporation in connection with his resignation or proposed removal or
replacement, or where representations in writing are submitted by an auditor in
connection with the resignation of such auditor or the proposed removal or
replacement of such auditor, a resolution in writing signed by all the
shareholders entitled

                                       72
<PAGE>
to vote on that resolution at a meeting of shareholders is as valid as if it had
been passed at a meeting of the shareholders.

INSPECTION RIGHTS

    The DGCL allows any stockholder to inspect during business hours the
stockholder list and the corporation's other books and records for a purpose
reasonably related to such person's interest as a stockholder.

    Under the OBCA, a shareholder of a corporation and the shareholder's agents
and legal representatives have the right to inspect copies of the following
during the usual business hours of the corporation, and to take extracts
therefrom free of charge: (1) the articles and by-laws of the corporation,
including any amendments, (2) minutes of meetings and resolutions of
shareholders, (3) a register setting out the names and residence addresses
(while directors) of all present and past directors, with the dates on which
each became or ceased to be a director, and (4) a securities register.
Applicants who are shareholders of an Ontario corporation, their agents and
legal representatives and, where the corporation is an offering corporation, any
other person, may require the corporation to furnish a shareholder list to the
applicant upon payment of a reasonable fee and delivery of a statutory
declaration as to the name and address of the applicant and to the effect that
such list will not be used except in connection with an effort to influence
voting by shareholders of the corporation, an offer to acquire shares of the
corporation or any other matter relating to the affairs of the corporation.

    In addition, under the OBCA, a securityholder of a corporation and, in the
case of an offering corporation, the Ontario Securities Commission, may apply to
court for an order directing that an investigation be made of a corporation or
of any affiliated corporation.

PRE-EMPTIVE RIGHTS

    Unless the certificate of incorporation expressly provides otherwise,
stockholders of a Delaware corporation do not have pre-emptive rights. The Fuisz
certificate does not provide for pre-emptive rights.

    The OBCA provides that if it is so provided in a corporation's articles, no
shares of a class or series shall be issued unless the shares have first been
offered to the shareholders of the corporation holding shares of that class or
series or of another class or series on such terms as are provided in the
articles. The Biovail articles do not provide for any such pre-emptive rights.

DIVIDENDS AND REPURCHASES OF SHARES

    The DGCL permits the payment of dividends on common stock, subject to any
restrictions contained in the certificate of incorporation, without
stockholders' consent out of a corporation's surplus (the excess of net assets
over capital) or out of net profits for the current and preceding fiscal years.
If the net assets are diminished to an amount less than the aggregate amount of
capital represented by the outstanding stock having a preference on the
distribution of assets, then no distribution paid out of net profits shall be
made until the deficiency in the amount of capital represented by the preferred
shares shall have been repaired. The Fuisz certificate and Fuisz by-laws do not
restrict the payment of dividends on the Fuisz common stock.

    Under the DGCL, a corporation may purchase shares of any class of its
capital stock or redeem shares of any class or series of preferred stock unless
its capital is impaired or would become impaired as a result of such purchase or
redemption. However, a purchase or redemption of preferred stock may be made out
of the corporation's capital if such shares will be retired upon their
acquisition and the capital of the corporation thereby reduced. The Fuisz
certificate does not restrict this right.

    Under the OBCA, subject to a corporation's articles, the directors may
declare and the corporation may pay a dividend by issuing fully paid shares of
the corporation or options or rights to acquire fully paid shares of the
corporation and, subject to the solvency test described in the following

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sentence, a corporation may pay a dividend in money or property. The directors
are prohibited from declaring and the corporation is prohibited from paying a
dividend if there are reasonable grounds for believing that the corporation is
or, after the payment would be unable to pay its liabilities as they become due,
or the realizable value of the corporation's assets would thereby be less than
the aggregate of its liabilities and its stated capital of all classes. The OBCA
also permits a corporation, subject to its articles, to purchase or otherwise
acquire any of its issued shares or warrants, provided that no payment to
purchase or otherwise acquire its shares may be made unless, subject to certain
specified exceptions, the solvency test described above is satisfied at the time
of, and after, such payment.

    Under the OBCA, a corporation may, subject to its articles and to the
solvency test mentioned below, redeem or purchase any redeemable shares issued
by it at prices not exceeding the redemption price thereof stated in the
articles or calculated according to a formula stated in the articles. However, a
corporation may not make any payment to purchase or redeem any redeemable shares
issued by it if there are reasonable grounds for believing that the corporation
is or, after the payment, would be unable to pay its liabilities as they become
due, or after the payment, the realizable value of the corporation's assets
would be less than the aggregate of its liabilities and the amount that would be
required to pay the holders of shares who have a right to be paid, on a
redemption or in a liquidation, ratably with or prior to the holders of the
shares to be purchased or redeemed.

AUTHORITY TO ISSUE SHARES

    Delaware law provides a corporation the authority to issue the maximum
number of shares of its capital stock as authorized in its certificate of
incorporation. The certificate of incorporation, and any amendments thereto,
require the approval of the corporation's stockholders.

    Ontario law does not require that any maximum number of shares which a
corporation has the authority to issue be specified in its articles. The Biovail
articles currently authorize the corporation to issue up to 120,000,000 common
shares, and an unlimited number of Class A Special shares, issuable in series.
The directors may fix the rights, privileges, restrictions and conditions
attaching to each series of Class A Special shares, including whether and on
what basis such shares are convertible into common shares. The directors may
also determine that one or more series of Class A Special shares are voting.
Such Class A Special shares may be created and issued by the directors without a
shareholder vote. A shareholder's vote might have been required under Delaware
law in order to amend a corporation's certificate of incorporation to permit the
creation of such shares.

AMENDMENTS TO GOVERNING INSTRUMENTS

    Under the DGCL, any amendment, alteration or repeal of any article of the
certificate of incorporation requires the affirmative vote of a majority of the
outstanding stock entitled to vote thereon and of a majority of the outstanding
stock of each class entitled to vote thereon as a class. If the certificate of
incorporation requires a greater vote or the articles being amended, altered or
repealed require a greater vote for action by the board of directors or the
stockholders, such greater vote is required to alter, amend or repeal such
article. The Fuisz certificate does require a greater vote than the DGCL
prescribes. The affirmative vote of the holders of at least 67% of the votes
which all the stockholders would be entitled to cast at any annual election of
directors or class of directors is required to amend or repeal, or to adopt any
provision inconsistent with Article tenth, relating to the management of Fuisz,
of the Fuisz certificate. Even if not otherwise entitled to vote upon a proposed
amendment, the holders of the outstanding shares of any class (or series of any
class) are entitled under the DGCL to vote as a class upon such proposed
amendment if it would alter the number of authorized shares or par value of the
shares of such class (or series) or adversely affect the powers, preferences or
special rights of the shares of such class (or series).

    Under the DGCL, the by-laws of a corporation generally may be amended or
repealed by the affirmative vote of the holders of a majority of the issued and
outstanding stock of the corporation

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entitled to vote thereon as a class. As permitted by the DGCL, the Fuisz
certificate provides that the Fuisz by-laws may be altered, amended or repealed
by the Fuisz board of directors.

    Under the OBCA, any change to the articles of a corporation must be approved
by special resolution, other than a change in the corporation's name from a
number name to a name that is not a number name, and other than, where the
directors are authorized by the articles to divide any class of unissued shares
into series and to determine the designation, rights, privileges, restrictions
and conditions thereof, a change creating such series and fixing such
attributes, which changes may be authorized by resolution of the directors. The
directors of Biovail are authorized to amend the Biovail articles to create one
or more series of Class A Special shares, and to fix the attributes of such
shares, without any requirement for prior shareholder approval. If a proposed
amendment requires approval by special resolution, the holders of shares of a
class (or of a series of a class, if the proposed amendment would affect such
series differently from the other series of shares of such class) are entitled
to vote separately as a class or series if the proposed amendment affects the
class or series as specified in the OBCA, whether or not the class or series
otherwise carries the right to vote. Ontario law permits a corporation to
provide in its articles that a class or series shall not be entitled to vote
separately in the case of an amendment to increase or decrease the maximum
number of shares of a class or series having rights equal or superior to that
class or series, to effect an exchange, reclassification or cancellation of all
of the part of the shares of a class or series, or to create a new class or
series equal or superior to that class or series. However, the Biovail articles
do not contain such a provision.

    Under Ontario law, the board of directors of a corporation may make and
amend by-laws provided that any such by-law or amendment must be confirmed at
the next meeting of shareholders by the affirmative vote of a majority of the
shareholders entitled to vote thereat. Any by-law or amendment is effective when
made by the board of directors but ceases to be effective if not confirmed by
the shareholders.

DIRECTOR QUALIFICATIONS

    The DGCL provides that a company's certificate of incorporation or by-laws
may prescribe director's qualifications. There are no specific director's
qualifications prescribed in the Fuisz certificate or the Fuisz by-laws.

    The board of directors of an OBCA corporation whose securities are publicly
traded must consist of at least three individuals, a majority of whom must be
resident Canadians. The OBCA also requires that at least one-third of the
directors of a corporation whose securities are publicly traded must not be
officers or employees of the corporation or any of its affiliates.

CLASSIFICATION OF THE BOARD OF DIRECTORS

    Under the DGCL, the certificate of incorporation of a Delaware corporation
may provide for the classification of the board of directors with respect to the
time for which directors severally hold office. The Fuisz certificate provides
for three such classifications of the Fuisz board of directors.

    Where the articles of a corporation do not provide for the election of
directors by cumulative voting, the OBCA permits, but does not require, that
directors may be elected at a meeting of shareholders for different terms of up
to three years. The Biovail by-laws provide that at each annual meeting of
shareholders, all the directors then in office shall retire but, if qualified,
shall be eligible for re-election.

REMOVAL OF DIRECTORS

    Under the DGCL, the entire board of directors or any individual director may
be removed from office, with or without cause, by the holders of a majority of
the shares then entitled to vote at an election of directors. If the
stockholders are entitled to cumulative voting in the election of directors,
unless the entire board is removed, no individual director may be removed
without cause if the number

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of votes cast against the resolution for his removal would be sufficient if
cumulatively voted to elect one or more directors to the board. If the board of
directors is classified, a director may be removed by a vote of stockholders
only for cause, unless the certificate of incorporation provides otherwise. The
Fuisz board of directors is classified but the Fuisz certificate states that
directors may be removed without cause by the holders of at least sixty-seven
percent of the shares then entitled to vote at an election of directors.

    Under Ontario law, other than where cumulative voting applies for the
election of directors, the shareholders of a corporation may by ordinary
resolution at an annual or special meeting remove any director or directors from
office. Where the holders of any class or series of shares of a corporation have
an exclusive right to elect one or more directors, a director so elected may
only be removed by an ordinary resolution at a meeting of the shareholders of
that class or series.

VACANCIES ON THE BOARD OF DIRECTORS

    As permitted under the DGCL, the Fuisz by-laws provide that the board of
directors may increase or decrease the number of directors and fill any vacancy
on the board, including vacancies resulting from an increase in the number of
directors.

    Under Ontario law, a quorum of directors may fill a vacancy among the
directors, except for the following vacancies, which must be filled by the
shareholders: (1) a vacancy resulting from an increase in the number of
directors (otherwise than an increase in the board of directors pursuant to a
special resolution empowering the board to fix the number of directors within
the range set out in the articles if, after such appointment, the total number
of directors would not be greater than one and one-third times the number of
directors required to have been elected at the last annual meeting of
shareholders) and (2) a vacancy resulting from an increase in the maximum number
of directors set out in the articles, or from a failure to elect the number of
directors required to be elected at any meeting of shareholders.

FIDUCIARY DUTIES OF DIRECTORS

    Directors of corporations incorporated or organized under the OBCA and the
DGCL have fiduciary obligations to the corporation and, under the DGCL, to its
stockholders. Pursuant to these fiduciary obligations, the directors must act in
accordance with the so-called duties of "due care" and "loyalty." Under Delaware
law, the duty of care requires that the directors act in an informed and
deliberative manner to inform themselves, prior to making a business decision,
of material information reasonably available to them. The duty of loyalty may be
summarized as the duty to act in good faith, not out of self-interest, and in a
manner which the directors reasonably believe to be in the best interests of the
corporation. See "Director Liability" below for a discussion of certain
exculpation provisions permitted under the DGCL.

    The OBCA provides that every director and officer of a corporation governed
by that Act, in exercising his or her powers and discharging his or her duties
shall act honestly and in good faith with a view to the best interests of the
corporation, and exercise the care, diligence and skill that a reasonably
prudent person would exercise in comparable circumstances. Every director and
officer of a corporation governed by the OBCA must comply with the provisions of
that Act, the regulations thereunder, and the articles and by-laws of such
corporation. No provision in a contract, the articles, the by-laws or any
resolution relieves a director or officer from the duty to act in accordance
with the OBCA or the regulations thereunder, or relieves him or her of liability
for a breach of either.

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CONFLICT OF INTEREST OF DIRECTORS AND OFFICERS

    As permitted under the DGCL, the Fuisz by-laws provide that no contract or
transaction between the corporation and one or more of the directors or
officers, or between the corporation and any other corporation, partnership,
association, or other organization in which one or more of the directors or
officers are directors or officers, or have a financial interest, shall be void
or voidable solely for this reason, or solely because the director or officer is
present at or participates in the meeting of the board of directors which
authorizes the contract or transaction or solely because his or their votes are
counted for such purpose, if:

        (1) The material facts as to his relationship or interest and as to the
    contract or transaction are disclosed or are known to the board of directors
    or the committee, and the board of directors or committee in good faith
    authorizes the contract or transaction by the affirmative votes of a
    majority of the disinterested directors, even though the disinterested
    directors be less than a quorum;

        (2) The material facts as to his relationship or interest and as to the
    contract or transaction are disclosed or are known to the stockholders
    entitled to vote thereon, and the contract or transaction is specifically
    approved in good faith by vote of the stockholders; or

        (3) The contract or transaction is fair as to the corporation as of the
    time it is authorized, approved or ratified, by the board of directors, a
    committee of the board of directors, or the stockholders.

    Common or interested directors may be counted in determining the presence of
a quorum at a meeting of the board of directors or of a committee which
authorizes the contract or transaction.

    Subject to certain specified exceptions, the OBCA restricts interested
directors from voting on any transactions in which such director has an
interest. Interested directors and officers must disclose in writing to the
corporation or request to have entered in the minutes of meetings of directors
the nature and extent of their interest.

INDEMNIFICATION OF DIRECTORS, OFFICERS AND OTHERS

    The DGCL provides that a corporation may, and in certain circumstances,
must, indemnify its directors, officers, employees or agents for expenses,
judgments or settlements actually and reasonably incurred by them in connection
with suits and other legal actions or proceedings if they acted in good faith
and in a manner they reasonably believed to be in or not opposed to the best
interests of the corporation and had no reasonable cause to believe their
conduct was unlawful. The DGCL also permits a corporation to adopt procedures
for advancing expenses to directors, officers and others without the need for a
case-by-case determination of eligibility, so long as, in the case of officers
and directors, they undertake to repay the amounts advanced if it is ultimately
determined that the officer or director was not entitled to be indemnified. The
Fuisz certificate and the Fuisz by-laws provide for indemnification of officers
and directors to the fullest extent permitted by, and the Fuisz by-laws contain
provisions for advancing expenses in the manner provided for in, the DGCL.

    Ontario law permits indemnification of a director or officer, a former
director or officer or a person who acts or acted at the corporation's request
as a director or officer of a body corporate of which the corporation is or was
a shareholder or creditor, and his or her heirs and legal representatives (an
"Indemnifiable Person"), against all costs, charges and expenses, including an
amount paid to settle an action or satisfy a judgment, reasonably incurred by
him or her in respect of any civil, criminal or administrative action or
proceeding to which he or she is made a party by reason of being or having been
a director or officer of the corporation or body corporate, if: (1) he or she
acted honestly and in good faith with a view to the best interests of the
corporation, and (2) in the case of a criminal or administrative action or
proceeding that is enforced by a monetary penalty, he or she had reasonable

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grounds for believing that his or her conduct was lawful. The Biovail by-laws
provide for such indemnification.

    Under the OBCA, a corporation may also, with the approval of the court,
indemnify an Indemnifiable Person in respect of an action by or on behalf of the
corporation or body corporate to procure a judgment in its favor, to which the
person is made a party by reason of being or having been a director or an
officer of the corporation or body corporate, against all costs, charges and
expenses reasonably incurred by the person in connection with such action if he
or she fulfills the conditions set out in clauses (1) and (2) above. In any
event, an Indemnifiable Person is entitled to indemnity from the corporation in
respect of all costs, charges and expenses reasonably incurred by him or her in
connection with the defense of any civil, criminal or administrative action or
proceeding to which he or she is made a party by reason of being or having been
a director or officer of the corporation of the body corporate, if the
Indemnifiable Person was substantially successful on the merits in his or her
defense of the action or proceeding and fulfills the conditions set out in
clauses (1) and (2) above.

DIRECTOR LIABILITY

    The DGCL provides that the charter of the corporation may include a
provision which limits or eliminates the liability of directors to the
corporation or its stockholders for monetary damages for breach of fiduciary
duty as a director, provided such liability does not arise from certain
proscribed conduct, including acts or omissions not in good faith or which
involve intentional misconduct or a knowing violation of law, breach of the duty
of loyalty, the payment of unlawful dividends or expenditure of funds, for
unlawful stock purchases or redemptions or transactions from which such director
derived an improper personal benefit. The Fuisz certificate contains a provision
limiting the liability of its directors to the fullest extent permitted by the
DGCL.

    The OBCA does not permit the limitation of a director's liability for breach
of fiduciary obligations to the corporation, whether through the articles or
otherwise.

SHAREHOLDERS' SUITS

    Under the DGCL, a stockholder may institute a lawsuit on behalf of the
corporation. An individual stockholder also may commence a lawsuit on behalf of
himself and other similarly situated stockholders where the requirements for
maintaining a class action under Delaware law have been met. Neither the Fuisz
certificate nor the Fuisz by-laws prescribe any procedure for the exercise of
these stockholder rights.

    Under Ontario law, a current or former registered or beneficial
securityholder of a corporation or its affiliates may apply to the court for
leave to bring an action in the name of and on behalf of a corporation or any of
its subsidiaries, or intervene in an action to which any such body corporate is
a party, for the purpose of prosecuting, defending or discontinuing the action
on behalf of the body corporate. The complainant must give 14 days' notice to
the directors of the corporation or its subsidiary of his intention to apply to
the court to bring the action, and the court must be satisfied that the
directors of the corporation or its subsidiaries will not bring, diligently
prosecute or defend or discontinue the action, that the complainant is acting in
good faith and that it appears to be in the interests of the corporation or its
subsidiaries that the action be brought, prosecuted, defended or discontinued.
Where a complainant makes an application without having given the required
notice, the OBCA permits the court to make an interim order pending the
complainant giving the required notice, provided that the complainant can
establish that at the time of seeking the interim order it was not expedient to
give the required notice.

    The OBCA provides that the court in a derivative action may make any order
it thinks fit including, without limitation: (1) an order authorizing the
complainant or any other person to control the conduct of the action; (2) an
order giving directions for the conduct of the action; (3) an order

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directing that any amount adjudged payable by a defendant in the action shall be
paid, in whole or in part, directly to the former and present securityholders of
the corporation or its subsidiary instead of to the corporation or its
subsidiary; and (4) an order requiring the corporation and its subsidiary to pay
reasonable legal fees and any other costs reasonably incurred by the complainant
in connection with the action. Additionally, under the OBCA, a court may order a
corporation or its subsidiary to pay the complainant's interim costs, including
reasonable fees and disbursements. Although the complainant may be held
accountable for the interim costs on final disposition of the complaint, it is
not required to give security for costs in a derivative action.

OPPRESSION REMEDY

    The OBCA provides an oppression remedy that enables the court to make any
order, both interim and final, to rectify the matters complained of, if the
court is satisfied upon the application by a complainant (as defined below) or
by the Ontario Securities Commission in the case of a corporation whose
securities are publicly traded, that: (1) any act or omission of the corporation
or an affiliate
effects or threatens to effect a result; (2) the business or affairs of the
corporation or an affiliate are, have been or are threatened to be carried on or
conducted in a manner; or (3) the powers of the directors of the corporation or
an affiliate are, have been or are threatened to be exercised in a manner that
is oppressive or unfairly prejudicial to, or unfairly disregards the interest
of, any security holder, creditor, director or officer of the corporation. A
complainant means (1) a registered holder or beneficial owner, or a former
registered holder or beneficial owner, of a security of a corporation or any of
its affiliates; (2) a director or an officer or a former director of officer of
a corporation or of any of its affiliates; or (3) any other person who, in the
discretion of the court, is a proper person to make such application.

    Because of the breadth of conduct which can be complained of and the scope
of the court's remedial powers, the oppression remedy is very flexible and is
sometimes relied upon to safeguard the interests of shareholders and other
complainants with a substantial interest in the corporation. Under the OBCA, it
is not necessary to prove that the directors of a corporation acted in bad faith
in order to seek an oppression remedy. Furthermore, the court may order the
corporation to pay the interim expenses of a complainant seeking an oppression
remedy, but the complainant may be held accountable for such interim costs on
final disposition of the complaint (as in the case of a derivative action).

    The DGCL does not provide for a similar remedy.

REORGANIZATIONS, MERGERS, EXTRAORDINARY TRANSACTIONS

    Under the DGCL, the vote of a majority of the outstanding shares of capital
stock entitled to vote thereon generally is necessary to approve a merger or
other reorganization. However, subject to certain conditions detailed in the
DGCL, no vote of the stockholders of a surviving corporation to a merger is
needed unless required by the certificate of incorporation if (1) the agreement
of merger does not amend in any respect the certificate of incorporation of such
surviving corporation, (2) each share of stock of such constituent corporation
outstanding immediately prior to the effective date of the merger is to be an
identical outstanding or treasury share of the surviving corporation after the
effective date of the merger, and (3) either no shares of common stock of the
surviving corporation and no shares, securities or obligations convertible into
such stock are to be issued or delivered under the plan of merger, or the
authorized unissued shares or the treasury shares of common stock of the
surviving corporation to be issued or delivered under the plan of merger plus
those initially issuable upon conversion of any other shares, securities or
obligations to be issued or delivered under such plan do not exceed 20% of the
shares of common stock of such constituent corporation outstanding immediately
prior to the effective date of the merger. Finally, the DGCL permits a
corporation to include in its certificate of incorporation a provision requiring
for any corporate action the vote of a

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larger portion of the stock or of any class or series thereof than would
otherwise be required under the DGCL. The Fuisz certificate does not contain
such a provision.

    The OBCA provides that certain extraordinary corporate actions, such as
certain amalgamations, any continuation, and sales, leases or exchanges of all
or substantially all of the property of a corporation other than in the ordinary
course of business, and other extraordinary corporate actions such as
liquidations, dissolutions and arrangements, are required to be approved by
special resolution. In certain cases, a special resolution to approve an
extraordinary corporate action is also required to be approved separately by the
holders of a class or a series of shares.

    Such matters as take-over bids, issuer bids or self tenders, going-private
transactions and transactions with directors, officers, significant shareholders
and other related parties to which Biovail is a party are subject to regulation
by Canadian provincial securities legislation and administrative policies of
Canadian securities administrators.

DISSENT AND APPRAISAL RIGHTS

    Under the DGCL, stockholders who follow prescribed statutory procedures are
entitled, in the event of certain mergers or consolidations, to surrender their
shares to the corporation in exchange for the judicially determined "fair value"
of such shares. A stockholder, however, is not entitled to such appraisal rights
if the shares of stock held by the stockholder are listed on a national
securities exchange or held of record by more than 2,000 stockholders, unless
the agreement of merger or consolidation converts such shares of stock into
anything except shares of stock of the surviving corporation, shares of stock of
any other corporation that at the effective date of the merger will be either
listed on a national securities exchange or held of record by more than 2,000
stockholders, cash in lieu of fractional shares of such stock or any combination
of such shares and cash in lieu of fractional shares. Fuisz stockholders are not
entitled to appraisal rights.

    The OBCA provides that the shareholders of an Ontario corporation entitled
to vote on certain matters are entitled to exercise dissent rights and to be
paid the fair value of their shares in connection therewith. The OBCA does not
distinguish for this purpose between listed and unlisted shares. Such matters
include: (1) an amendment to its articles to add, remove or change restrictions
on the issue, transfer or ownership of shares of a class or series of the shares
of the corporation; (2) an amendment to its articles to add, remove or change
any restriction upon the business or businesses that the corporation may carry
on or upon the powers that the corporation may exercise; (3) any amalgamation
with another corporation (other than certain affiliated corporations); (4)
continuance under the laws of another jurisdiction; (5) the sale, lease or
exchange of all or substantially all its property other than in the ordinary
course of business; (6) a court order permitting a shareholder to dissent in
connection with an application to the court for an order approving an
arrangement proposed by the corporation; or (7) certain amendments to the
articles of a corporation which require a separate class or series vote. A
shareholder is not entitled to dissent if an amendment to the articles is
effected by a court order approving a reorganization or by a court order made in
connection with an action for an oppression remedy.

    A properly dissenting shareholder is also entitled to elect to receive the
appraised value of his or her shares in connection with certain compulsory
acquisitions, as described below under the heading "Compulsory Acquisition".

COMPULSORY ACQUISITION

    Under the OBCA, where over 90% of the shares of an offering corporation are
acquired pursuant to a take-over bid or issuer bid, the bidder, by complying
with the provisions of the OBCA, can force the non-tendering shareholders to
either sell their shares on the same terms as the tendering

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shareholders, or to demand payment from the corporation of the fair value of
their securities in exchange for the surrender of their securities to the
corporation.

    Where 90% or more of a class of securities of an offering corporation, other
than debt obligations, are acquired by or on behalf of a person, its affiliates
and associates, the OBCA provides that the remaining securityholders may require
the corporation to acquire their securities of that class, either at the price
offered by the corporation or at the securities' fair value, as determined by
the court.

    Any amalgamation, arrangement, consolidation or other transaction under the
OBCA (other than an acquisition described in the preceding two paragraphs and
certain other specified transactions) by an offering corporation that would
cause the interest of a holder of a participating security of the corporation to
be terminated without the consent of the holder and without the substitution
therefor of an interest of equivalent value in a participating security that is
issued by the corporation, an affiliate of the corporation or a successor body
corporate and is not limited in the extent of its participation in earnings to
any greater extent than the participating security for which it is substituted
(a "going private transaction") must be carried out by the corporation in
compliance with certain provisions of the OBCA which require that a valuation of
the subject securities be prepared by an independent, qualified valuer, and the
going private transaction be approved, in addition to any other required
shareholder approval, by the holders of each class of affected securities by a
vote in accordance with specified procedures. The holder of an affected security
may dissent from the going private transaction, and exercise appraisal rights
under the OBCA.

    There is no such provision under Delaware law.

ANTI-TAKEOVER PROVISIONS; INTERESTED STOCKHOLDER TRANSACTIONS

    Fuisz is a Delaware corporation and subject to Section 203 of the DGCL. The
following summary of Section 203 does not purport to be complete and is
qualified in its entirety by reference thereto. Under Section 203, certain
"business combinations" between Delaware corporation with at least one class of
stock which is listed on a national securities exchange or held of record by
more than 2,000 stockholders and an "interested stockholder" are prohibited for
a three-year period following the date that such stockholder became an
interested stockholder, unless (1) before such person became an interested
stockholder, the board of directors of the corporation approved the transaction
in which the interested stockholder became an interested stockholder or approved
the business combination; (2) upon consummation of the section that resulted in
the interested stockholder's becoming an interested stockholder, the interested
stockholder owns at least 85% of the voting stock of the corporation outstanding
at the time the transaction commenced (excluding stock held by directors who are
also officers of the corporation and by employee stock plans that do not provide
employees with the right to determine confidentially whether shares held subject
to the plan will be tendered in a tender or exchange offer; or (3) at or
following the time such person became an interested stockholder, the business
combination is approved by the board of directors of the corporation and
authorized at a meeting of stockholders by the affirmative vote of the holders
of two-thirds of the outstanding voting stock of the corporation not owned by
the interested stockholder. Under Section 203, the three-year prohibition
described above also does not apply to certain business combinations including
those proposed by an interested stockholder following the announcement or
notification of one of certain extraordinary transactions involving the
corporation and a person who had not been an interested stockholder during the
previous three years or who became an interested stockholder with the approval
of the corporation's directors, if such extraordinary transaction is approved or
not opposed by a majority of the directors then in office who were directors
prior to any person becoming an interested stockholder during the previous three
years or were recommended for election or elected to succeed such directors by a
majority of such directors.

                                       81
<PAGE>
    Generally, the term "business combination" is defined to include mergers or
consolidations between a Delaware corporation and an "interested stockholder",
transactions with an "interested stockholder" involving the assets or stock of a
Delaware corporation or its majority-owned subsidiaries and transactions that
increase an interested stockholder's percentage ownership of stock. Generally,
the term "interested stockholder" is defined as any stockholder who becomes the
beneficial owner of 15% or more of a Delaware corporation's voting stock.

    Biovail is subject to the policies of certain Canadian securities
authorities, including Policy 9.1 of the Ontario Securities Commission ("Policy
9.1"), which contain requirements regarding related party transactions. A
related party transaction means, generally, any transaction by which the issuer,
directly or indirectly, acquires or transfers an asset or acquires or issues
treasury securities or assumes or transfers a liability from or to, as the case
may be, a related party by any means in any one transaction or any combination
of transactions. "Related party" is defined in Policy 9.1 and includes
directors, senior officers and holders of at least 10% of the voting securities
of the issuer.

    Policy 9.1 requires more detailed disclosure in the proxy material sent to
securityholders in connection with a related party transaction and, subject to
certain exemptions, the preparation of a formal valuation of the subject matter
of the related party transaction and any non-cash consideration offered therefor
and the inclusion of a summary of the valuation in the proxy material. Policy
9.1 also requires, subject to certain exemptions, that the minority shareholders
of the issuer approve the transaction, by either simple majority or two-thirds
of the votes cast, depending on the circumstances.

                SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS

    Other than as provided below, Biovail is not aware of any shareholders
owning more than 10% of its voting securities as of October 8, 1999.

<TABLE>
<CAPTION>
NAME OF BENEFICIAL OWNER                                        COMMON SHARES OWNED      PERCENT
- -------------------------------------------------------------  ----------------------  -----------
<S>                                                            <C>                     <C>
Eugene Melnyk................................................          6,782,957            27.98%
c/o Biovail Corporation International
2488 Dunwin Drive
Mississauga, Ontario L5L 1J9

Officers and directors as a group (8 persons)................          7,064,623            29.13%
</TABLE>

    In January 1999, Biovail granted to each of Mr. Eugene N. Melnyk, Chairman
of the Board and a director of Biovail, Mr. Robert A. Podruzny, President, Chief
Operating Officer and a director of Biovail, and Mr. Rolf K. Reininghaus, Senior
Vice President and a director of Biovail, options to purchase 30,000 of
Biovail's common shares and agreed to grant an additional 30,000 Biovail common
shares in 2000. These options will have an exercise price equal to the closing
market price of Biovail common shares on the date of grant. These options will
be exercisable for a period of five years and will vest on the second
anniversary of the date granted. Upon a change of control of Biovail, Biovail
has agreed to accelerate the vesting of the granted options and to pay a cash
bonus equal to the exercise price for all such options which must be used to
purchase shares. These options are in addition to options disclosed in the
information incorporated by reference in this proxy statement-prospectus.

                      SUBMISSION OF SHAREHOLDER PROPOSALS

    Fuisz stockholders must follow certain advance notice procedures in order to
submit a stockholder proposal. Any stockholder proposal for Fuisz's annual
meeting of stockholders to be held in 2000 must be submitted to Fuisz on or
before December 17, 1999, and must comply with the requirements of SEC Rule
14a-8 in order to be eligible to be included in the proxy materials relating to
that meeting. Fuisz will not have any stockholder meetings following the merger.

                                       82
<PAGE>
    Alternatively, stockholders of record may introduce certain types of
proposals that they believe should be voted upon at the annual meeting or
nominate persons for election to the board of directors. Under Fuisz's bylaws,
notice of any such proposal or nomination must be provided in writing to the
secretary of Fuisz no later than February 27, 2000. Stockholders wishing to make
such proposals or nominations must, in addition, satisfy other requirements
under Fuisz's bylaws. If the stockholder does not also comply with the
requirements of Rule 14a-4 under the Exchange Act, Fuisz may exercise
discretionary voting authority under proxies it solicits to vote in accordance
with its best judgment on any such proposal submitted by a stockholder.

    To be considered for inclusion in Biovail's proxy materials for its 2000
annual meeting of shareholders, shareholder proposals must have been submitted
to the secretary of Biovail no later than February 7, 2000. If a Biovail
shareholder does not provide the proper notice, the chairman of the meeting may
exclude the matter and it will not be acted upon at the meeting. If the chairman
does not exclude the matter, the proxies may vote in the manner they believe is
appropriate, as the SEC's rules allow.

                             CERTAIN LEGAL MATTERS

    Certain legal matters relating to Biovail will be passed upon by Cahill
Gordon & Reindel (a partnership including a professional corporation) New York,
New York, U.S. counsel for Biovail. Certain Canadian legal matters relating to
the validity of the Biovail common shares will be passed upon by Goodman and
Carr, Canadian counsel for Biovail.

                                    EXPERTS

    The financial statements incorporated in this proxy statement-prospectus by
reference to Biovail's Annual Report on Form 20-F for the year ended December
31, 1998, have been audited by Deloitte & Touche, LLP, independent auditors as
stated in their report, which is included in this proxy statement-prospectus by
reference, and have been so included in reliance upon the report of such firm
given upon their authority as experts in accounting and auditing. Effective July
22, 1999, Ernst & Young LLP were appointed as auditors of Biovail.

    The financial statements incorporated in this proxy statement prospectus by
reference to Fuisz's Annual Report on Form 10-K for the year ended December 31,
1998, have been included in reliance on the report of PricewaterhouseCoopers
LLP, independent accountants, given on the authority of said firm as experts in
accounting and auditing.

                      ENFORCEABILITY OF CIVIL LIABILITIES
                  UNDER UNITED STATES FEDERAL SECURITIES LAWS

    Biovail is incorporated under the laws of Ontario, Canada. Certain
directors, officers and controlling persons of Biovail, as well as certain of
the experts named in this proxy statement-prospectus, reside outside the United
States of America and all or a substantial portion of their assets and the
assets of Biovail are located outside the U.S. As a result, it may be difficult
for you to effect service of process within the U.S. upon such persons (other
than Biovail) or to enforce against them judgments of courts of the U.S.
predicated upon civil liabilities under the U.S. federal securities laws.

    Biovail has irrevocably appointed CT Corporation System, New York, New York,
as its agent to receive service of process in actions against it arising out of
or in connection with the U.S. federal securities laws or out of violations of
such laws in any federal court or state court in New York, relating to the
transactions covered by this proxy statement-prospectus.

                                       83
<PAGE>
                      WHERE YOU CAN FIND MORE INFORMATION

    Fuisz and Biovail are each subject to the informational requirements of the
Securities Exchange Act of 1934, as amended, and file reports, proxy statements
and other information with the SEC. You may read and copy any reports,
statements or other information that we file at the SEC's public reference room
at Judiciary Plaza, 450 Fifth Street, N.W., Room 1024, Washington, D.C. 20549,
as well as at the SEC's regional offices at: 7 World Trade Center, 13th Floor,
New York, New York 10048, and at Citicorp Center, 500 West Madison Street, Suite
1400, Chicago, Illinois 60661. You can obtain copies of any of these material at
prescribed rates by writing to the SEC, Public Reference Section, 450 Fifth
Street, N.W., Washington, D.C. 20549. Please call the SEC toll free at
1-800-SEC-0330 for more information on the public reference rooms.

    Our SEC filings are also available to the public from commercial retrieval
services and at the website maintained by the SEC at HTTP://WWW.SEC.GOV.
Reports, proxy statements and other information are also available for
inspection at the offices of the NYSE, the TSE and the Nasdaq.

    Biovail has filed a registration statement on Form F-4 with the SEC to
register the Biovail common shares to be issued to Fuisz stockholders in the
merger. This proxy statement-prospectus is a part of that registration statement
and constitutes a prospectus of Biovail in addition to being a proxy statement
of Fuisz for its special meeting. As allowed by the SEC rules, this proxy
statement-prospectus does not contain all the information you can find in the
registration statement or the exhibits to the registration statement. Statements
contained in this proxy statement-prospectus concerning any documents are not
necessarily complete and, in each instance, reference is made to the copies of
such documents filed as exhibits to the registration statement. Each such
statement is qualified in its entirety by such reference.

               INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

    Any information incorporated by reference is deemed to be part of this proxy
statement-prospectus, except for information superseded by information in, or
incorporated by reference in, this proxy statement-prospectus. This document
incorporates by reference the documents set forth below that we have previously
filed with the SEC. These documents contain important information about Biovail
and Fuisz and their financial status.

BIOVAIL SEC FILINGS

    The following documents filed with the SEC by Biovail (File No. 1-11145) are
incorporated in this proxy statement-prospectus by reference:

    - Biovail's Annual Report on Form 20-F for the year ended December 31, 1998;

    - Biovail's Reports on Form 6-K, filed on June 23, 1999, July 28, 1999 and
      August 30, 1999; and

    - Biovail's Registration Statement on Form F-10, filed on September 21,
      1999.

    This proxy statement-prospectus is accompanied by a copy of Biovail's Annual
Report.

FUISZ SEC FILINGS

    The following documents filed with the SEC by Fuisz (File No. 0-27082) are
incorporated in this proxy statement-prospectus by reference:

    - Fuisz's Annual Report on Form 10-K for the year ended December 31, 1998;

    - Fuisz's Quarterly Reports on Form 10-Q for the quarters ended March 31,
      1999 and June 30, 1999;

                                       84
<PAGE>
    - Fuisz's Current Reports on Form 8-K, filed on September 8, 1999 and
      October 4, 1999; and

    - Fuisz's proxy statement for its 1999 annual meeting of stockholders.

    Any future filings by either Fuisz or Biovail under Section 13(a), 13(c), 14
or 15(d) of the Exchange Act subsequent to the date of this proxy
statement-prospectus and prior to the date of the special meeting will be deemed
to be incorporated in this proxy statement-prospectus by reference. Any such
filings will automatically update and replace the information that appears, or
is incorporated in this proxy statement-prospectus.

    Documents relating to Fuisz, excluding exhibits to such documents unless
such exhibits are specifically incorporated in this proxy statement-prospectus
by reference, are available without charge upon request to the secretary of
Fuisz Technologies Ltd., 14555 Avion Parkway, Suite 250, Chantilly, Virginia
20151. Telephone requests may be directed to (703) 995-2400. Documents relating
to Biovail, excluding exhibits to such documents unless such exhibits are
specifically incorporated in this proxy statement-prospectus by reference, are
available without charge upon request to the secretary of Biovail Corporation
International, 2488 Dunwin Drive, Mississauga, Ontario, Canada L5L 1J9.
Telephone requests may be directed to (416) 285-6000.

    Any statements contained in a document incorporated or deemed to be
incorporated by reference in this proxy statement-prospectus shall be deemed to
be modified or superseded for purposes of this proxy statement-prospectus to the
extent that a statement contained in this proxy statement-prospectus (or in any
other subsequently filed document which also is incorporated by reference in
this proxy statement-prospectus ) modifies or supersedes such statement. Any
statement so modified or superseded shall not be deemed to constitute a part of
this proxy statement-prospectus except as so modified or superseded. All
information appearing in this proxy statement-prospectus is qualified in its
entirety by the information and consolidated financial statements, including
notes thereto, appearing in the documents incorporated in this proxy
statement-prospectus by reference, except to the extent described in the
immediately preceding statement.

    No person is authorized to give any information or to make any
representations not contained in this proxy statement-prospectus or in the
documents incorporated in this proxy statement-prospectus by reference in
connection with the solicitation and the offering made under this proxy
statement-prospectus and, if given or made, such information or representation
should not be relied upon as having been authorized by Fuisz or Biovail. This
proxy statement-prospectus does not constitute an offer to sell, or a
solicitation of an offer to purchase, the securities offered by this proxy
statement-prospectus, or the solicitation of a proxy from any person, in any
jurisdiction in which it is unlawful to make such offer, solicitation of an
offer or proxy solicitation. Neither the delivery of this proxy
statement-prospectus nor any distribution of the securities made under this
proxy statement-prospectus will, under any circumstances, create an implication
that there has been no change in the affairs of Fuisz or Biovail since the date
of this proxy statement-prospectus other than as included in the documents
incorporated in this proxy statement-prospectus by reference.

                                       85
<PAGE>
                                                                         ANNEX A

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                              AMENDED AND RESTATED
                                   AGREEMENT
                                      AND
                                 PLAN OF MERGER
                           DATED AS OF JULY 25, 1999
                                  BY AND AMONG
                       BIOVAIL CORPORATION INTERNATIONAL
                       ABCI ACQUISITION SUB. CORPORATION
                                      AND
                            FUISZ TECHNOLOGIES LTD.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                  <C>                                                                                     <C>
                                                       ARTICLE I

                                                       THE OFFER

SECTION 1.01.        The Offer.............................................................................         A-1
SECTION 1.02.        Company Actions.......................................................................         A-2
SECTION 1.03.        Directors.............................................................................         A-3

                                                       ARTICLE II

                                                       THE MERGER

SECTION 2.01.        The Merger............................................................................         A-4
SECTION 2.02.        Effective Time; Closing...............................................................         A-4
SECTION 2.03.        Effects of the Merger.................................................................         A-4
SECTION 2.04.        Certificate of Incorporation and By Laws of the Surviving Corporation.................         A-4
SECTION 2.05.        Directors.............................................................................         A-4
SECTION 2.06.        Officers..............................................................................         A-4
SECTION 2.07.        Conversion of Shares..................................................................         A-4
SECTION 2.08.        Conversion of Purchaser Common Stock..................................................         A-5
SECTION 2.09.        Company Option Plans..................................................................         A-5
SECTION 2.10.        Shareholders' Meeting.................................................................         A-5
SECTION 2.11.        Earliest Consummation.................................................................         A-5

                                                      ARTICLE III

                                                  EXCHANGE PROVISIONS

SECTION 3.01.        Exchange Provisions...................................................................         A-6
SECTION 3.02.        Stock Transfer Books..................................................................         A-8
SECTION 3.03.        No Appraisal Rights...................................................................         A-8

                                                       ARTICLE IV

                                     REPRESENTATIONS AND WARRANTIES OF THE COMPANY

SECTION 4.01.        Organization and Qualification; Subsidiaries..........................................         A-8
SECTION 4.02.        Authority Relative to This Agreement..................................................         A-9
SECTION 4.03.        No Conflict; Required Filings and Consents............................................         A-9
SECTION 4.04.        Certain Approvals.....................................................................        A-10
SECTION 4.05.        Opinion of Financial Advisor..........................................................        A-10
SECTION 4.06.        Brokers...............................................................................        A-10
SECTION 4.07.        Capitalization........................................................................        A-10
SECTION 4.08.        Registration Statement; Proxy Statement...............................................        A-11
SECTION 4.09.        SEC Reports and Financial Statements..................................................        A-11
SECTION 4.10.        Information...........................................................................        A-12
SECTION 4.11.        Litigation............................................................................        A-12
</TABLE>

                                      A-i
<PAGE>
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                  <C>                                                                                     <C>
SECTION 4.12.        Compliance with Applicable Laws; Permits..............................................        A-12
SECTION 4.13.        Employee Benefit Plans................................................................        A-14
SECTION 4.14.        Intellectual Property.................................................................        A-16
SECTION 4.15.        Environmental Matters.................................................................        A-16
SECTION 4.16.        Material Adverse Change...............................................................        A-18
SECTION 4.17.        Taxes.................................................................................        A-19
SECTION 4.18.        Material Contracts....................................................................        A-19
SECTION 4.19.        Insurance.............................................................................        A-19
SECTION 4.20.        Year 2000.............................................................................        A-20
SECTION 4.21         Affiliates............................................................................        A-21

                                                       ARTICLE V

                               REPRESENTATIONS AND WARRANTIES OF PARENT AND THE PURCHASER

SECTION 5.01.        Organization and Qualification........................................................        A-21
SECTION 5.02.        Authority Relative to this Agreement..................................................        A-21
SECTION 5.03.        No Conflict; Required Filings and Consents............................................        A-22
SECTION 5.04.        Brokers...............................................................................        A-22
SECTION 5.05         Capitalization........................................................................        A-22
SECTION 5.06.        Registration Statement; Proxy Statements..............................................        A-23
SECTION 5.07.        SEC Reports and Financial Statements..................................................        A-23
SECTION 5.08         Material Adverse Change...............................................................        A-24
SECTION 5.09.        Information...........................................................................        A-24
SECTION 5.10         Financing.............................................................................        A-24
SECTION 5.11.        Litigation............................................................................        A-24
SECTION 5.12.        Compliance with Applicable Laws; Permits..............................................        A-24
SECTION 5.13.        Employee Benefit Plans................................................................        A-26
SECTION 5.14.        Environmental Matters.................................................................        A-26
SECTION 5.15.        Year 2000.............................................................................        A-27

                                                       ARTICLE VI

                                                       COVENANTS

SECTION 6.01.        Conduct of Business of the Company....................................................        A-28
SECTION 6.02.        Access to Information.................................................................        A-30
SECTION 6.03.        Reasonable Best Efforts...............................................................        A-30
SECTION 6.04.        Public Announcements..................................................................        A-31
SECTION 6.05.        Indemnification.......................................................................        A-31
SECTION 6.06.        No Solicitation.......................................................................        A-33
SECTION 6.07.        Notification of Certain Matters.......................................................        A-34
SECTION 6.08.        State Takeover Laws...................................................................        A-34
SECTION 6.09.        Environmental Approvals...............................................................        A-35
SECTION 6.10.        Stock Exchange Listings...............................................................        A-35
SECTION 6.11.        Affiliates............................................................................        A-35
SECTION 6.12.        Resignation of Directors; Certain Agreements..........................................        A-35
</TABLE>

                                      A-ii
<PAGE>
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                  <C>                                                                                     <C>
                                                      ARTICLE VII

                                        CONDITIONS TO CONSUMMATION OF THE MERGER

SECTION 7.01.        Conditions to Each Party's Obligation to Effect the Merger............................        A-35
SECTION 7.02.        Conditions to the Obligations of Parent and Purchaser.................................        A-36
SECTION 7.03.        Conditions to the Obligations of the Company..........................................        A-36

                                                      ARTICLE VIII

                                              TERMINATION AND ABANDONMENT

SECTION 8.01.        Termination...........................................................................        A-36
SECTION 8.02.        Termination by Parent.................................................................        A-37
SECTION 8.03.        Termination by the Company............................................................        A-37
SECTION 8.04.        Procedure for Termination.............................................................        A-38
SECTION 8.05.        Effect of Termination and Abandonment.................................................        A-38
SECTION 8.06.        Extension; Waiver.....................................................................        A-38

                                                       ARTICLE IX

                                                        CLOSING

SECTION 9.01.        Time and Place........................................................................        A-39
SECTION 9.02.        Filings at the Closing................................................................        A-39

                                                       ARTICLE X

                                                     MISCELLANEOUS

SECTION 10.01.       Non-Survival of Representations and Warranties........................................        A-39
SECTION 10.02.       Entire Agreement; Assignment..........................................................        A-39
SECTION 10.03.       Validity..............................................................................        A-39
SECTION 10.04.       Notices...............................................................................        A-39
SECTION 10.05.       Governing Law; Jurisdiction...........................................................        A-40
SECTION 10.06.       Descriptive Headings..................................................................        A-40
SECTION 10.07.       Counterparts..........................................................................        A-41
SECTION 10.08.       Parties in Interest...................................................................        A-41
SECTION 10.09.       Certain Definitions...................................................................        A-41
SECTION 10.10.       Remedies..............................................................................        A-41
</TABLE>

<TABLE>
<S>          <C>        <C>
ANNEX I      --         Conditions To The Offer
ANNEX II     --         Merger Consideration
ANNEX III    --         Form of Company Affiliate Letter
</TABLE>

                                     A-iii
<PAGE>
               AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER

    AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER dated as of July 25, 1999,
by and among Biovail Corporation International, an Ontario corporation
("Parent"), ABCI Acquisition Sub. Corporation, a Delaware corporation and an
indirect wholly owned subsidiary of Parent (the "Purchaser"), and Fuisz
Technologies Ltd., a Delaware corporation (the "Company").

    WHEREAS, as a condition and inducement to Parent's willingness to enter into
this Agreement, Parent and Dr. Richard Fuisz have entered into a Stock Option
Agreement, dated July 13, 1999 (the "Stock Option Agreement");

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

    WHEREAS, in furtherance of such acquisition, Parent proposes to cause the
Purchaser to make a tender offer (as it may be amended from time to time as
permitted under this Agreement, the "Offer") to purchase such number of shares
of Common Stock, par value $.01 per share, of the Company (the "Common Shares"
or "Shares"), as will cause Parent and its affiliates to beneficially own up to
49% of the outstanding Common Shares, but, except as otherwise provided herein,
not less than 40% of the outstanding Common Shares, at a price per Common Share
of $7.00 net to the seller in cash (such price, as it may hereafter be changed
in accordance with the terms of this Agreement, the "Offer Price") upon the
terms and subject to the conditions set forth in this Agreement;

    WHEREAS, the Board of Directors of the Company has unanimously approved this
Agreement, the Offer and the Merger (as hereinafter defined), has determined
that the Offer and the Merger are fair and in the best interests of the
Company's shareholders (the "Shareholders") and is recommending that the
Shareholders accept the Offer and tender all their Shares and adopt and approve
this Agreement;

    WHEREAS, the respective Boards of Directors of Parent, the Purchaser and the
Company have approved the merger of the Purchaser with and into the Company, as
set forth below (the "Merger"), in accordance with the General Corporation Law
of the State of Delaware (the "GCL") and upon the terms and subject to the
conditions set forth in this Agreement, whereby each issued and outstanding
Share not owned directly or indirectly by Parent or the Company will be
converted into the right to receive the number of shares of the common stock of
Parent (the "Parent Common Stock") as described on Annex II (the "Merger
Consideration");

    WHEREAS, Parent, the Purchaser and the Company desire to make certain
representations, warranties, covenants and agreements in connection with the
Offer and the Merger and also to prescribe various conditions to the Offer and
the Merger.

    NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth herein, Parent,
the Purchaser and the Company agree as follows:

                                   ARTICLE I
                                   THE OFFER

    SECTION 1.01.  THE OFFER.

    (a) So long as none of the events set forth in clauses (a) through (f) of
Annex I hereto (the "conditions to the Offer") shall have occurred or exist, the
Purchaser shall, and Parent shall cause the Purchaser to, commence (within the
meaning of Rule 14d-2(a) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act")) as promptly as practicable after the date hereof, but in any
event not later than July 30, 1999, the Offer for such number of Shares as will
cause Parent and its affiliates

                                      A-1
<PAGE>
to beneficially own up to 49%, but except as otherwise provided herein, not less
than 40%, of the outstanding Shares (with such Shares to be purchased on a PRO
RATA basis among Shares validly tendered and not withdrawn), at the Offer Price,
net to the seller in cash. The initial expiration date for the Offer shall be
the twentieth business day from and after the date the Offer is commenced,
including the date of commencement as the first business day in accordance with
Rule 14d-2 under the Exchange Act. As promptly as practicable, the Purchaser
shall file with the Securities and Exchange Commission (the "SEC" or the
"Commission") the Purchaser's Tender Offer Statement on Schedule 14D-1 (together
with any supplements or amendments thereto, the "Offer Documents"), which shall
contain (as an exhibit thereto) the Purchaser's Offer to Purchase (the "Offer to
Purchase") which shall be mailed to the holders of Shares with respect to the
Offer. The obligation of the Purchaser to accept for payment or pay for any
Shares tendered pursuant to the Offer will be subject only to the satisfaction
or waiver of the conditions to the Offer set forth on Annex I. Without the prior
written consent of the Company, the Purchaser shall not decrease the price per
Share, waive the Minimum Condition, or change the form of consideration payable
in the Offer, decrease the number of Shares sought to be purchased in the Offer,
change the conditions to the Offer, impose additional conditions to the Offer or
amend any other term of the Offer in any manner adverse to the holders of
Shares; PROVIDED, HOWEVER, that Parent shall be required to extend the Offer
from time to time to the extent any conditions to the Offer reasonably capable
of being satisfied have not been satisfied on the applicable expiration date but
not beyond the 55th business day from and including the business day the Offer
commences. Any such extension shall not be for a period greater than the period
of time Parent reasonably expects to be necessary to satisfy such conditions.
Subject to the terms of the Offer and this Agreement and the satisfaction or
waiver of all the conditions of the Offer as of any expiration date, Parent will
accept for payment and pay for Shares validly tendered and not withdrawn
pursuant to the Offer as soon as practicable after such expiration date of the
Offer (the "Tender Offer Effective Date").

    (b) The Offer Documents will comply in all material respects with the
provisions of applicable federal securities laws and, on the date filed with the
SEC and on the date first published, sent or given to the Shareholders, shall
not contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements made therein, in light of the circumstances under which they were
made, not misleading, except that no representation is made by Parent or the
Purchaser with respect to information supplied by or on behalf of the Company in
writing for inclusion in the Offer Documents. Each of Parent and the Purchaser,
on the one hand, and the Company, on the other hand, agrees promptly to correct
any information provided by or on behalf of it for use in the Offer Documents if
and to the extent that it shall have become false or misleading in any material
respect, and the Purchaser further agrees to take all steps necessary to cause
the Offer Documents as so corrected to be filed with the SEC and to be
disseminated to Shareholders, in each case as and to the extent required by
applicable federal securities laws.

    SECTION 1.02.  COMPANY ACTIONS.

    (a) Contemporaneously with the filing of the Offer Documents, the Company
shall file with the SEC and shall promptly mail to the Shareholders a
Solicitation/Recommendation Statement on Schedule 14D-9 with respect to the
Offer (together with any amendments or supplements thereto, the "Schedule
14D-9"). The Schedule 14D-9 will set forth, and the Company hereby represents,
that the Board of Directors of the Company, at a meeting duly called and held on
July 6, 1999 has approved the Stock Option Agreement in accordance with Section
203 of the GCL. The Schedule 14D-9 will set forth, and the Company hereby
represents, that the Board of Directors of the Company, at a meeting duly called
and held on July 25, 1999 (the "Company Board Meeting"), has (i) determined that
the Offer and the Merger are fair to and in the best interests of the Company
and its Shareholders, (ii) approved the Offer and the Merger in accordance with
Section 203 of the GCL (and for purposes of any other applicable state takeover
law), and (iii) resolved to recommend acceptance of the Offer

                                      A-2
<PAGE>
and approval and adoption of the Merger and this Agreement by the Company's
Shareholders (in accordance with the requirements of the Company's Amended and
Restated Certificate of Incorporation and of applicable law); PROVIDED, HOWEVER,
that, subject to Section 8.02(c), such recommendation may be withdrawn, modified
or amended to the extent that the Board of Directors of the Company determines
reasonably and in good faith that it is necessary under applicable law to do so
in the exercise of its fiduciary obligations after consultation with outside
counsel; PROVIDED, FURTHER, HOWEVER, that notwithstanding any withdrawal,
modification or amendment of such recommendation, the Company agrees that if the
Purchaser purchases Shares pursuant to the Offer, this Agreement shall be
submitted to the Shareholders for approval and adoption at the Special Meeting
whether or not the Board of Directors determines at any time subsequent to the
Company Board Meeting that this Agreement is no longer advisable and recommends
that Shareholders reject it.

    (b) The Schedule 14D-9 will comply in all material respects with the
provisions of applicable federal securities laws and, on the date filed with the
SEC and on the date first published, sent or given to the Shareholders, shall
not contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements made therein, in light of the circumstances under which they were
made, not misleading, except that no representation is made by the Company with
respect to information supplied by or on behalf of the Parent or Purchaser in
writing for inclusion in the Schedule 14D-9. Each of the Company, on the one
hand, and Parent and the Purchaser, on the other hand, agrees promptly to
correct any information provided by either of them for use in the Schedule 14D-9
if and to the extent that it shall have become false or misleading in any
material respect, and the Company further agrees to take all steps necessary to
cause the Schedule 14D-9 as so corrected to be filed with the SEC and to be
disseminated to the Shareholders, in each case as and to the extent required by
applicable federal securities law.

    (c) In connection with the Offer, the Company will promptly furnish the
Purchaser with such information and assistance as the Purchaser or its agents or
representatives may reasonably request in connection with communicating the
Offer to the record and beneficial holders of the Securities, including, without
limitation, its stockholders list, mailing labels, security position listings
and non-objecting beneficial owners list. The Purchaser will keep such
information confidential and not use it for any other purpose.

    SECTION 1.03.  DIRECTORS.

    (a) Subject to compliance with applicable law, promptly upon the payment by
the Purchaser or Parent, as the case may be, for Shares pursuant to the Offer,
and from time to time thereafter, Parent shall be entitled to designate such
number of directors, rounded up to the next whole number, on the Board of
Directors of the Company as is equal to the product of the total number of
directors on the Board of Directors of the Company (determined after giving
effect to the directors elected pursuant to this sentence) multiplied by the
percentage that the aggregate number of Shares beneficially owned by Parent or
its affiliates bears to the total number of Shares then outstanding, and the
Company shall, upon request of Parent, promptly take all actions necessary to
cause Parent's designees to be so elected, including, if necessary, seeking the
resignations of one or more existing directors; PROVIDED, HOWEVER, that prior to
the Effective Time (as defined in Section 2.02), the members of the Board which
are officers, directors or designees of the Parent ("Purchaser Insiders") shall
at all times be less than 50% of the total number of Board members.

    (b) From and after the election or appointment of Parent's designees
pursuant to this Section 1.03 and prior to the Effective Time, any amendment or
termination of this Agreement by the Company, any extension by the Company of
the time for the performance of any of the obligations or other acts of Parent
or the Purchaser or waiver of any of the Company's rights hereunder, or any
other action taken by the Board of Directors of the Company in connection with
this Agreement, will require the concurrence of a majority of the directors of
the Company then in office who are not Purchaser Insiders.

                                      A-3
<PAGE>
    (c) Promptly upon the payment by the Purchaser or Parent, as the case may
be, for Shares pursuant to the Offer, Parent shall be entitled to designate one
officer of the Company (reasonably acceptable to the Company) to address such
matters of contract negotiation and administration as Parent shall reasonably
request and the Board of Directors of the Company, acting reasonably, shall
approve. Such officer shall work together with other business development
officers at the Company with comparable duties and responsibilities, and shall
be subject to the same currently existing reporting and procedural limitations
as such other officers. Such officer shall report to and serve at the pleasure
of the Board of Directors of the Company; PROVIDED, that such officer shall not
be terminated without the approval of at least two-thirds of the members of the
Board of Directors (including Purchaser Insiders).

                                   ARTICLE II
                                   THE MERGER

    SECTION 2.01.  THE MERGER.  Upon the terms and subject to the satisfaction
or waiver of the conditions hereof, and in accordance with the applicable
provisions of this Agreement and the GCL, at the Effective Time (as defined in
Section 2.02) the Purchaser shall be merged with and into the Company. Following
the Merger, the separate corporate existence of the Purchaser shall cease and
the Company shall continue as the surviving corporation (the "Surviving
Corporation").

    SECTION 2.02.  EFFECTIVE TIME; CLOSING.  As soon as practicable after the
satisfaction or waiver of the conditions described in Article VII hereof, the
Company shall execute in the manner required by the GCL and deliver to the
Secretary of State of the State of Delaware a duly executed and verified
certificate of merger. The parties shall take such other and further actions as
may be required by law to make the Merger effective. The Merger shall become
effective upon filing of the certificate of merger unless a later time is
specified in such certificate. The time the Merger becomes effective in
accordance with applicable law is referred to as the "Effective Time."

    SECTION 2.03.  EFFECTS OF THE MERGER.  The Merger shall have the effects set
forth in Section 259 of the GCL.

    SECTION 2.04.  CERTIFICATE OF INCORPORATION AND BY-LAWS OF THE SURVIVING
CORPORATION.

    (a) The certificate of incorporation of the Purchaser, as in effect
immediately prior to the Effective Time, shall be the certificate of
incorporation of the Surviving Corporation, until thereafter amended in
accordance with the provisions thereof and hereof and applicable law.

    (b) Subject to the provisions of Section 6.05 of this Agreement, the by-laws
of the Purchaser in effect at the Effective Time shall be the by-laws of the
Surviving Corporation, until thereafter amended in accordance with the
provisions thereof and hereof and applicable law.

    SECTION 2.05.  DIRECTORS.  Subject to applicable law, the directors of the
Purchaser immediately prior to the Effective Time shall be the initial directors
of the Surviving Corporation and shall hold office until their respective
successors are duly elected and qualified, or their earlier death, resignation
or removal.

    SECTION 2.06.  OFFICERS.  The officers of the Company immediately prior to
the Effective Time shall be the initial officers of the Surviving Corporation
and shall hold office until their respective successors are duly elected and
qualified, or their earlier death, resignation or removal.

    SECTION 2.07.  CONVERSION OF SHARES.  At the Effective Time, by virtue of
the Merger and without any action on the part of the holders thereof, each Share
issued and outstanding immediately prior to the Effective Time shall be
converted into the right to receive the Merger Consideration described in Annex
II (other than Shares held by Parent, the Purchaser, any direct or indirect
wholly-owned subsidiary of Parent, in the treasury of the Company or by any
direct or indirect wholly-owned

                                      A-4
<PAGE>
subsidiary of the Company ("Excluded Shares"), which Shares, by virtue of the
Merger and without any action on the part of the holder thereof, shall be
canceled and retired and shall cease to exist with no payment being made with
respect thereto).

    SECTION 2.08.  CONVERSION OF PURCHASER COMMON STOCK.  At the Effective Time,
each share of common stock, par value $.01 per share, of the Purchaser issued
and outstanding immediately prior to the Effective Time shall, by virtue of the
Merger and without any action on the part of the holder thereof, be converted
into and become the number of validly issued, fully paid and nonassessable
shares of common stock, par value $.01 per share, of the Surviving Corporation
equal to the number of shares of Common Stock outstanding on a fully diluted
basis immediately prior to the Effective Time.

    SECTION 2.09.  COMPANY OPTION PLANS.  The Board of Directors of the Company
and the Committee (as defined in the Option Plan (as defined below)) have
adopted such resolutions, and shall take such other actions as may be necessary,
so that each outstanding option (an "Option") granted under the Company's 1991
Stock Option Plan, 1994 Director Stock Option Plan and 1994 Stock Incentive Plan
(collectively, the "Option Plans"), whether or not then exercisable or vested,
shall, if not exercised within five business days, be terminated immediately
prior to the Effective Time.

    SECTION 2.10.  SHAREHOLDERS' MEETING.

    (a) As required by the Company's Amended and Restated Certificate of
Incorporation and/or applicable law in order to consummate the Merger, the
Company, acting through its Board of Directors, shall, in accordance with
applicable law:

        (i) duly call, give notice of, convene and hold a special meeting of its
    Shareholders (the "Special Meeting") as soon as practicable following the
    acceptance for payment of and payment for Shares by the Purchaser pursuant
    to the Offer for the purpose of considering and taking action upon this
    Agreement, whether or not the Board of Directors determines at any time
    subsequent to the Company Board Meeting that this Agreement is no longer
    advisable and recommends that Shareholders reject it;

        (ii) prepare and file with the SEC a preliminary proxy statement
    relating to the Merger and this Agreement and use its reasonable best
    efforts (x) to comply with Section 6.03(b) and (y) to obtain the necessary
    approvals of the Merger and this Agreement by its Shareholders; and

        (iii) subject to the fiduciary obligations of the Board of Directors of
    the Company under applicable law as advised by outside counsel, include in
    the Statement the recommendation of the Board of Directors of the Company
    that Shareholders vote in favor of the approval of the Merger and the
    adoption of this Agreement; PROVIDED, HOWEVER, that notwithstanding any
    withdrawal, modification or amendment of the recommendation of the Board of
    Directors of the Company made at the Company Board Meeting, the Company
    agrees that this Agreement shall be submitted to the Shareholders for
    approval and adoption at the Special Meeting whether or not the Board of
    Directors determines at any time subsequent to the Company Board Meeting
    that this Agreement is no longer advisable and recommends that Shareholders
    reject it.

    (b) Parent agrees that it will vote, or cause to be voted, all of the Shares
then owned by it, the Purchaser or any of its other subsidiaries or affiliates
in favor of the approval of the Merger and the adoption of this Agreement.

    SECTION 2.11.  EARLIEST CONSUMMATION.  Each party hereto shall use its
reasonable best efforts to consummate the Merger as soon as practicable.

                                      A-5
<PAGE>
                                  ARTICLE III
                              EXCHANGE PROVISIONS

    SECTION 3.01.  EXCHANGE PROVISIONS.

    (a)  EXCHANGE AGENT.  From and after the Effective Time, (i) Parent shall
make available to a bank or trust company designated by Parent subject to the
Company's consent, which shall not be unreasonably withheld (the "Exchange
Agent"), for the benefit of the holders of shares of Company Common Stock, for
exchange in accordance with this Section through the Exchange Agent,
certificates evidencing a sufficient number of shares of Parent Common Stock as
would permit the Exchange Agent to issue such number of shares of Parent Common
Stock issuable to holders of Company Common Stock pursuant to Section 2.07 (such
certificates for Parent Common Stock, together with any dividends or
distributions with respect thereto, being hereinafter referred to as the
"Exchange Fund"). As promptly as practicable after the Effective Time, Parent
shall cause the Exchange Agent to deliver the Parent Common Stock contemplated
to be issued pursuant to Section 2.07 out of the Exchange Fund in accordance
with the procedures specified in this Section 3.01. Except as contemplated by
Section 3.01(g) hereof, the Exchange Fund shall not be used for any other
purpose.

    (b)  EXCHANGE PROCEDURES.  As promptly as practicable after the Effective
Time, Parent shall cause the Exchange Agent to mail to each record holder of a
certificate or certificates which immediately prior to the Effective Time
represented outstanding shares of Company Common Stock (the "Certificates") (i)
a letter of transmittal (which shall be in customary form and shall specify that
delivery shall be effected, and risk of loss and title to the Certificates shall
pass, only upon proper delivery of the Certificates to the Exchange Agent) and
(ii) instructions for use in effecting the surrender of the Certificates in
exchange for the Merger Consideration.

    (c)  EXCHANGE OF CERTIFICATES.  Upon surrender to the Exchange Agent of a
Certificate for cancellation, together with such letter of transmittal, duly
executed and completed in accordance with the instructions thereto, and such
other documents as may be reasonably required pursuant to such instructions, the
holder of such Certificate shall be entitled to receive in exchange therefor a
certificate representing that number of whole shares of Parent Common Stock, if
any, to which such holder is entitled pursuant to this Section 3.01 (including
any cash in lieu of any fractional Parent Common Stock to which such holder is
entitled pursuant to Section 3.01(f) and any dividends or other distributions to
which such holder is entitled pursuant to Section 3.01(d) (together, the
"Additional Payments")), and the Certificate so surrendered shall forthwith be
canceled. In the event of a transfer of ownership of shares of Company Common
Stock which is not registered in the transfer records of the Company, the
applicable Merger Consideration and Additional Payments, if any, may be issued
to a transferee if the Certificate representing such shares of Company Common
Stock is presented to the Exchange Agent, accompanied by all documents required
to evidence and effect such transfer and by evidence that any applicable stock
transfer taxes have been paid. Until surrendered as contemplated by this Section
3.01, each Certificate shall be deemed at all times after the Effective Time to
represent only the right to receive upon such surrender the applicable Merger
Consideration with respect to the shares of Company Common Stock formerly
represented thereby and Additional Payments, if any.

    (d)  DISTRIBUTIONS WITH RESPECT TO UNSURRENDERED CERTIFICATES.  No dividends
or other distributions declared or made after the Effective Time with respect to
Parent Common Stock with a record date after the Effective Time shall be paid to
the holder of any unsurrendered Certificate with respect to the Parent Common
Stock the holder of such Certificate is entitled to receive upon surrender
thereof, and no cash payment in lieu of any fractional shares shall be paid to
any such holder pursuant to Section 3.01(f), until the holder of such
Certificate shall surrender such Certificate. Subject to the effect of escheat,
tax or other applicable Laws, following surrender of any such Certificate, there
shall be paid to the holder of the certificates representing whole shares of
Parent Common Stock issued in

                                      A-6
<PAGE>
exchange therefor, without interest, (i) promptly, the amount of any cash
payable with respect to a fractional Parent Common Stock to which such holder is
entitled pursuant to Section 3.01(f) and the amount of dividends or other
distributions with a record date after the Effective Time and theretofore paid
with respect to such whole shares of Parent Common Stock, and (ii) at the
appropriate payment date, the amount of dividends or other distributions, with a
record date after the Effective Time but prior to surrender and a payment date
occurring after surrender, payable with respect to such whole Parent Common
Stock. After the Effective Time, each outstanding Certificate which theretofore
represented shares of Company Common Stock shall, until surrendered for exchange
in accordance with this Section 3.01, be deemed for all purposes to evidence
ownership of the number of shares of Parent Common Stock into which the shares
of Company Common Stock (which, prior to the Effective Time, were represented
thereby) shall have been so converted.

    (e)  NO FURTHER RIGHTS IN COMPANY COMMON STOCK.  At the Effective Time all
outstanding shares of Company Common Stock, by virtue of the Merger and without
any action on the part of the holders thereof, shall no longer be outstanding
and shall be canceled and retired and shall cease to exist, and each holder of a
certificate representing any such shares of Company Common Stock shall
thereafter cease to have any rights with respect to such shares of Company
Common Stock, except the right to receive the Merger Consideration for such
shares of Company Common Stock. All Parent Common Stock issued upon conversion
of the shares of Company Common Stock in accordance with the terms hereof
(including any cash paid pursuant to Section 3.01(d) or (f)) shall be deemed to
have been issued in full satisfaction of all rights pertaining to such shares of
Company Common Stock.

    (f)  NO FRACTIONAL SHARES.  No certificates or scrip representing fractional
shares of Parent Common Stock shall be issued upon the surrender for exchange of
Certificates, and such fractional share interests will not entitle the owner
thereof to vote or to any other rights of a holder of Parent Common Stock. Each
holder of a fractional share interest shall be paid an amount in cash equal to
the product obtained by multiplying (i) such fractional share interest to which
such holder (after taking into account all fractional share interests then held
by such holder) would otherwise be entitled by (ii) the Average Trading Price
(as defined on Annex II). As promptly as practicable after the determination of
the amount of cash, if any, to be paid to holders of fractional share interests,
the Exchange Agent shall so notify Parent, and Parent shall deposit such amount
with the Exchange Agent and shall cause the Exchange Agent to forward payments
to such holders of fractional share interests subject to and in accordance with
the terms of Sections 3.01(b), (c) and (d).

    (g)  TERMINATION OF EXCHANGE FUND.  Any portion of the Exchange Fund which
remains undistributed to the holders of Company Common Stock for three months
after the Effective Time shall be delivered to Parent, upon demand, and any
holders of Company Common Stock who have not theretofore complied with this
Article III shall thereafter look only to Parent for the applicable Merger
Consideration and any Additional Payments to which they are entitled. Any
portion of the Exchange Fund remaining unclaimed by holders of shares of Company
Common Stock as of a date which is immediately prior to such time as such
amounts would otherwise escheat to or become property of any government entity
shall, to the extent permitted by applicable Law, become the property of Parent
free and clear of any claims or interest of any person previously entitled
thereto.

    (h)  NO LIABILITY.  None of the Exchange Agent, Parent or the Surviving
Corporation shall be liable to any holder of Certificates for any shares of
Parent Common Stock (or dividends or distributions with respect thereto), or
cash delivered to a public official pursuant to any abandoned property, escheat
or similar law.

    (i)  WITHHOLDING RIGHTS.  Each of the Surviving Corporation and Parent shall
be entitled to deduct and withhold from the consideration otherwise payable
pursuant to this Agreement to any holder of Certificates such amounts as it is
required to deduct and withhold with respect to the making of such payment under
the Code, or any provision of state, local or foreign tax law. To the extent
that amounts are so withheld by the Surviving Corporation or Parent, as the case
may be, such withheld amounts

                                      A-7
<PAGE>
shall be treated for all purposes of this Agreement as having been paid to the
holder of the Certificates in respect of which such deduction and withholding
was made by the Surviving Corporation or Parent, as the case may be.

    (j)  LOST CERTIFICATES.  If any Certificate shall have been lost, stolen or
destroyed, upon the making of an affidavit of that fact by the person claiming
such Certificate to be lost, stolen or destroyed and, if required by the
Surviving Corporation or Parent, the posting by such person of a bond, in such
reasonable amount as the Surviving Corporation or Parent may direct, as
indemnity against any claim that may be made against it with respect to such
Certificate, the Exchange Agent will issue in exchange for such lost, stolen or
destroyed Certificate the applicable Merger Consideration and Additional
Payments, if any.

    (k)  FURTHER ASSURANCES.  If, at any time after the Effective Time, the
Surviving Corporation shall consider or be advised that any deeds, bills of
sale, assignments, assurances or any other actions or things are reasonably
necessary to vest, perfect or confirm of record or otherwise in the Surviving
Corporation its right, title or interest in, to or under any of the rights,
properties or assets of either of the Purchaser or the Company acquired or to be
acquired by the Surviving Corporation as a result of, or in connection with, the
Merger or otherwise to carry out this Agreement, the officers of the Surviving
Corporation shall be authorized to execute and deliver, in the name and on
behalf of each of the Purchaser and the Company or otherwise, all such deeds,
bills of sale, assignments and assurances and to take and do, in such names and
on such behalves or otherwise, all such other actions and things as may be
reasonably necessary to vest, perfect or confirm any and all right, title and
interest in, to and under such rights, properties or assets in the Surviving
Corporation or otherwise to carry out the purposes of this Agreement.

    (l) As of the Effective Time, Parent shall enter into the agreements with
the holders of the warrants set forth on the Company Disclosure Statement (the
"Company Warrants") required by such warrants.

    SECTION 3.02  STOCK TRANSFER BOOKS.  At the Effective Time, the stock
transfer books of the Company shall be closed and there shall be no further
registration of transfers of shares of Company Common Stock thereafter on the
records of the Company. On or after the Effective Time, any Certificates
presented to the Exchange Agent or Parent for any reason shall be converted into
the applicable Merger Consideration and Additional Payments, if any.

    SECTION 3.03.  NO APPRAISAL RIGHTS.  In accordance with Section 262(b) of
the Delaware Act, no holder of shares of Company Common Stock shall be entitled
to appraisal rights.

                                   ARTICLE IV
                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

    The Company represents and warrants to Parent and the Purchaser that except
as set forth in the section or subsection of the Company Disclosure Statement
corresponding to the section or subsection of this Article IV delivered to
Parent and the Purchaser prior to the execution hereof (the "Company Disclosure
Statement"):

    SECTION 4.01.  ORGANIZATION AND QUALIFICATION; SUBSIDIARIES.  The Company is
a corporation duly organized, validly existing and in good standing under the
laws of the State of Delaware. Each subsidiary (as defined in Section 10.09) of
the Company (the "Subsidiaries") is a corporation duly organized, validly
existing and in good standing under the laws of the jurisdiction of its
incorporation. The Company and each of the Subsidiaries has the requisite
corporate power and authority to own, operate or lease its properties and to
carry on its business as it is now being conducted, and is duly qualified or
licensed to do business, and is in good standing, in each jurisdiction in which
the nature of its business or the properties owned, operated or leased by it
makes such qualification, licensing or

                                      A-8
<PAGE>
good standing necessary, except where the failures to have such power or
authority, or the failures to be so qualified, licensed or in good standing,
individually, and in the aggregate, would not have a Material Adverse Effect on
the Company (as defined below). The Company does not directly or indirectly own
any equity or similar interest in, or any interest convertible into or
exchangeable or exercisable for any equity or similar interest in, any
corporation (other than a Subsidiary), partnership, joint venture or other
business association or entity. The term "Material Adverse Effect on the
Company" means any change in, or effect on, the business, results of operations,
assets, financial condition or prospects of the Company or any of the
Subsidiaries that is or would reasonably be expected to be materially adverse to
the Company and the Subsidiaries taken as a whole.

    SECTION 4.02.  AUTHORITY RELATIVE TO THIS AGREEMENT.

    (a) The Company has all necessary corporate power and authority to execute
and deliver this Agreement and to consummate the transactions contemplated
hereby. The execution and delivery of this Agreement by the Company and the
consummation by the Company of the transactions contemplated hereby and thereby
have been duly and validly authorized and approved by the Board of Directors of
the Company and no other corporate proceedings on the part of the Company are
necessary to authorize or approve this Agreement or to consummate the
transactions contemplated hereby or thereby (other than, with respect to the
Merger, the approval and adoption of the Merger and this Agreement by holders of
a majority of the outstanding Shares to the extent required by the Company's
Amended and Restated Certificate of Incorporation and by applicable law). This
Agreement has been duly and validly executed and delivered by the Company and,
assuming the due and valid authorization, execution and delivery of this
Agreement by Parent and the Purchaser, constitutes a valid and binding
obligation of the Company enforceable against the Company in accordance with its
terms, except that such enforceability (i) may be limited by bankruptcy,
insolvency, moratorium or other similar laws affecting or relating to the
enforcement of creditors' rights generally (the "Bankruptcy Exceptions") and
(ii) is subject to general principles of equity. The Board of Directors of the
Company has, at the Company Board Meeting approved and adopted this Agreement,
the Offer, the Merger and the other transactions contemplated hereby and
thereby, determined that the Offer and the Merger is fair to the Shareholders,
recommended that the Shareholders approve and adopt this Agreement, the Merger
and tender their Shares pursuant to the Offer and approved the submission of
this Agreement to the Shareholders at the Special Meeting if the Purchaser
purchases Shares pursuant to the Offer whether or not the Board of Directors of
the Company determines at any time subsequent to the Company Board Meeting that
this Agreement is no longer advisable and recommends that Shareholders reject
it.

    (b) To the knowledge of the Company as of the date of this Agreement, all of
its directors and executive officers intend to tender their Shares pursuant to
the Offer.

    SECTION 4.03.  NO CONFLICT; REQUIRED FILINGS AND CONSENTS.

    (a) None of the execution and delivery of this Agreement by the Company, the
consummation by the Company of the transactions contemplated hereby or thereby
or compliance by the Company with any of the provisions hereof or thereof will
require any consent, waiver, approval, authorization or permit of, or
registration or filing with or notification to (any of the foregoing being a
"Consent"), any government, subdivision thereof, or any administrative,
governmental, regulatory or self-regulatory authority, agency, commission,
tribunal or body, domestic, foreign or supranational (a "Governmental Entity")
or person who is not a Governmental Entity, except for (i) compliance with any
applicable requirements of the Exchange Act, the Securities Act of 1933, as
amended, or applicable state securities "Blue Sky" laws or filings in connection
with the maintenance of qualification to do business in other jurisdictions,
(ii) the filing of a certificate of merger pursuant to the GCL and (iii)
compliance with the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as
amended (the "HSR Act").

                                      A-9
<PAGE>
    (b) Except as set forth in clause (a) of this Section 4.03, none of the
execution and delivery of this Agreement by the Company, the consummation by the
Company of the transactions contemplated hereby and thereby or compliance by the
Company with any of the provisions hereof or thereof will (i) conflict with or
violate the Amended and Restated Certificate of Incorporation or bylaws of the
Company or the comparable organizational documents of any of the Subsidiaries,
(ii) conflict with or violate any statute, ordinance, rule, regulation, order,
judgment or decree applicable to the Company or the Subsidiaries, or by which
any of them or any of their respective properties or assets may be bound or
affected, or (iii) result in a violation or breach of or constitute a default
(or an event which with notice or lapse of time or both would become a default)
under, or give to others any rights of termination, amendment, acceleration or
cancellation of, or result in any loss of any material benefit or the creation
of any Lien (as defined) on any of the property or assets of the Company or any
of the Subsidiaries (any of the foregoing referred to in clause (ii) or this
clause (iii) being a "Violation") pursuant to, any note, bond, mortgage,
indenture, contract, agreement, lease, license, permit, franchise or other
instrument or obligation to which the Company or any of the Subsidiaries is a
party or by which the Company or any of the Subsidiaries or any of their
respective properties may be bound or affected, except, in the case of clause
(ii) and (iii), for any such Violation which would not, individually or in the
aggregate, have a Material Adverse Effect on the Company.

    SECTION 4.04.  CERTAIN APPROVALS.  The Board of Directors of the Company has
taken appropriate action such that the provisions of Section 203 of the GCL will
not apply to the Offer, the Merger or any of the other transactions contemplated
by this Agreement or the Stock Option Agreement.

    SECTION 4.05.  OPINION OF FINANCIAL ADVISOR.  The Board of Directors of the
Company has received the opinion of Warburg Dillon Read LLC to the effect that,
as of the date of this Agreement, the consideration to be received in the Offer
and the Merger, taken together, by the holders of Company Common Stock (other
than Parent and its affiliates) is fair, from a financial point of view, to such
holders.

    SECTION 4.06.  BROKERS.  Except for the engagement of Warburg Dillon Read
LLC (a copy of whose engagement letter previously has been delivered by the
Company to Parent), none of the Company, any of the Subsidiaries or any of their
respective officers, directors or employees has employed any broker or finder or
incurred any liability for any brokerage fees, commissions or finder's fees in
connection with the transactions contemplated by this Agreement.

    SECTION 4.07.  CAPITALIZATION.  The Company has heretofore made available to
Parent and the Purchaser a complete and correct copy of the Amended and Restated
Certificate of Incorporation and the by-laws, each as amended to the date
hereof, of the Company. The authorized capital stock of the Company consists of
50,000,000 Common Shares and 2,323,356 shares of Preferred Stock, par value $.01
per share (the "Preferred Stock"). Except as set forth on the Company Disclosure
Statement, as of the close of business on the day prior to execution of this
Agreement, there were no shares of Preferred Stock issued and outstanding. As of
the close of business on the day prior to execution of this Agreement, there
were 22,668,923 Common Shares issued, of which 638,200 were owned by the Company
or a wholly-owned Subsidiary. The Company has no shares of capital stock
reserved for issuance, except that, as of the day prior to execution of this
Agreement, there were 3,432,625 Common Shares reserved for issuance pursuant to
Options outstanding on the date hereof pursuant to the Option Plans and
5,660,337 Common Shares reserved for issuance pursuant to the Company's 7%
Convertible Subordinated Debentures due 2004 (the "Convertible Debentures").
Since the day prior to execution of this Agreement, the Company has not issued
any Options or shares of capital stock except pursuant to the exercise of
Options outstanding as of such date and in accordance with their terms. All the
outstanding Common Shares are, and all Common Shares which may be issued
pursuant to the exercise of outstanding Options will be, when issued in
accordance with the respective terms thereof, duly authorized, validly issued,
fully paid and nonassessable. Except for the Convertible Debentures,

                                      A-10
<PAGE>
there are no bonds, debentures, notes or other indebtedness having general
voting rights (or convertible into securities having such rights) ("Voting
Debt") of the Company or any of the Subsidiaries issued and outstanding. Except
for the Options, the Convertible Debentures and the warrants set forth on the
Company Disclosure Statement, there are no existing options, warrants, calls,
subscriptions or other rights, agreements, arrangements or commitments of any
character, relating to the issued or unissued capital stock of the Company or
any of the Subsidiaries, obligating the Company or any of the Subsidiaries to
issue, transfer or sell or cause to be issued, transferred or sold any shares of
capital stock or Voting Debt of, or other equity interest in, the Company or any
of the Subsidiaries or securities convertible into or exchangeable for such
shares or equity interests or obligations of the Company or any of the
Subsidiaries to grant, extend or enter into any such option, warrant, call,
subscription or other right, agreement, arrangement or commitment. There are no
outstanding contractual obligations of the Company or any of the Subsidiaries to
repurchase, redeem or otherwise acquire any capital stock of the Company or any
of its Subsidiaries. Each of the outstanding shares of capital stock of each of
the Company's Subsidiaries is duly authorized, validly issued, fully paid and
nonassessable, and such shares of the Subsidiaries as are owned by the Company
or by a wholly owned Subsidiary are free and clear of any lien, claim, option,
charge, security interest, limitation, encumbrance and restriction of any kind
(any of the foregoing being a "Lien"). Section 4.07 of the Company Disclosure
Statement contains a complete list as of the date hereof of each Subsidiary and
sets forth with respect to each of the Subsidiaries its name and jurisdiction of
organization and the number of shares of capital stock or share capital owned by
the Company and each other person.

    SECTION 4.08.  REGISTRATION STATEMENT; PROXY STATEMENT.  Except for
information concerning the Parent that the Parent has provided for inclusion or
incorporation by reference in the Proxy Statement, such information, at the date
the Proxy Statement is first mailed to stockholders, at the time of the Special
Meetings and at the Effective Time, shall not contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein not misleading. If at any
time prior to the Effective Time any event with respect to the Company or any of
its Subsidiaries shall occur which is required to be described in the Proxy
Statement, such event shall be so described, and an amendment or supplement
shall be promptly filed with the SEC and, as required by law, disseminated to
the stockholders of the Company. The Proxy Statement will (with respect to the
Company and its Subsidiaries) comply as to form in all material respects with
the applicable provisions of the Securities Act and Exchange Act, as the case
may be.

    SECTION 4.09.  SEC REPORTS AND FINANCIAL STATEMENTS.

    (a) The Company has filed with the SEC all forms, reports, schedules,
registration statements and definitive proxy statements required to be filed by
the Company with the SEC until the date hereof (the "SEC Reports"). As of their
respective dates and except as subsequently amended prior to the date hereof,
the SEC Reports complied in all material respects with the requirements of the
Exchange Act or the Securities Act of 1933, as amended, and the rules and
regulations of the SEC promulgated thereunder applicable, as the case may be, to
such SEC Reports, and none of the SEC Reports contained any untrue statement of
a material fact or omitted to state a material fact required to be stated
therein or necessary to make the statements made therein, in light of the
circumstances under which they were made, not misleading.

    (b) The consolidated balance sheets as of December 31, 1998 and 1997 and the
related consolidated statements of income, shareholders' equity and cash flows
(including the notes thereto) for each of the three years in the period ended
December 31, 1998 (including the related notes and schedules thereto) of the
Company contained in the Company's Form 10-K for the year ended December 31,
1998 included in the SEC Reports present fairly the consolidated financial
position and the consolidated results of operations and cash flows of the
Company and its consolidated subsidiaries as of the dates or for the periods
presented therein in conformity with United States generally accepted accounting
principles applied on a consistent basis as of and during the periods involved
("GAAP").

                                      A-11
<PAGE>
    (c) The consolidated balance sheets and the related statements of income and
cash flows (including in each case the related notes thereto) of the Company
contained in the Forms 10-Q for the periods ended March 31, 1999, included in
the SEC Reports (the "Quarterly Financial Statements") have been prepared in
accordance with the requirements for interim financial statements contained in
Regulation S-X under the Exchange Act. The Quarterly Financial Statements
reflect all adjustments, which include only normal recurring adjustments,
necessary to present fairly and do present fairly the consolidated financial
position, results of operations and cash flows of the Company and its
consolidated Subsidiaries for the period presented therein in conformity with
GAAP applied on a consistent basis during the periods involved.

    (d) The Company and the Subsidiaries have no liabilities or obligations of
any nature (whether absolute, accrued, contingent, unliquidated, conditional or
otherwise) except for liabilities or obligations (i) reflected or reserved
against on the balance sheet as at March 31, 1999 included in the Quarterly
Financial Statements (the "Company Balance Sheet") or (ii) which would not,
individually or in the aggregate, have a Material Adverse Effect on the Company.

    SECTION 4.10.  INFORMATION.  None of the information supplied by the Company
in writing specifically for inclusion or incorporation by reference in (i) the
Offer Documents, (ii) the Schedule 14D-9 (including the information included
therein in order to comply with Section 14(f) of the Exchange Act and Rule 14f-1
thereunder), (iii) the Proxy Statement or (iv) any other document to be filed
with the SEC or any other Governmental Entity in connection with the
transactions contemplated by this Agreement (the "Other Filings") will, at the
respective times filed with the SEC or other Governmental Entity and, in
addition, in the case of the Proxy Statement, at the date it or any amendment or
supplement is mailed to Shareholders, at the time of the Special Meeting and at
the Effective Time, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements made therein, in light of the circumstances under which they
were made, not misleading. The Statement will comply as to form in all material
respects with the provisions of the Exchange Act and the rules and regulations
thereunder. Notwithstanding the foregoing, no representation is made by the
Company with respect to statements made in any such documents based on
information supplied by or on behalf of Parent or the Purchaser in writing
specifically for inclusion in the Statement.

    SECTION 4.11.  LITIGATION.  There is no suit, action, proceeding or
governmental investigation before any commission or other administrative
authority pending or, to the knowledge of the Company, threatened against or
affecting the Company or any of the Subsidiaries, with respect to or affecting
the Company's or any of the Subsidiaries' operations, business, products, sales
practices or financial condition, except for suits, actions and proceedings
that, individually or in the aggregate, would not have a Material Adverse Effect
on the Company, nor is there any judgment, decree, injunction or order of any
Governmental Entity or arbitrator outstanding against the Company or any of the
Subsidiaries, except for judgments, decrees, injunctions and orders that would
not, individually or in the aggregate, have a Material Adverse Effect on the
Company. There are no facts known to the Company which, if known by a potential
claimant or any Governmental Entity, would reasonably give rise to a claim or
proceeding which, if asserted or conducted would be reasonably likely to have a
Material Adverse Effect on the Company.

    SECTION 4.12.  COMPLIANCE WITH APPLICABLE LAWS; PERMITS.

    (a) The Company and the Subsidiaries have been in compliance with all laws,
regulations and orders of any Governmental Entity applicable to it or the
Subsidiaries, except for such failures so to comply which, individually and in
the aggregate, would not have a Material Adverse Effect on the Company. The
business operations of the Company and the Subsidiaries have not been conducted
in violation of any law, ordinance or regulation of any Governmental Entity,
except for possible violations which, individually or in the aggregate, would
not have a Material Adverse Effect on the Company.

                                      A-12
<PAGE>
    (b) Each of the Company and the Subsidiaries is in possession of all
franchises, grants, authorizations, licenses, establishment registrations,
product listings, permits, easements, variances, exceptions, consents,
certificates, approvals and orders of any Governmental Entity, including,
without limitation, the FDA, the United States Drug Enforcement Administration
(the "DEA"), and similar authorities in other jurisdictions, necessary for the
Company or any Subsidiary to own, lease and operate its properties or to
produce, store, distribute and market its products or otherwise to carry on its
business as it is now being conducted (the "Company Permits"), except where the
failure to have, or the suspension or cancellation of, any of the Company
Permits would not, individually or in the aggregate, have a Material Adverse
Effect on the Company, and, as of the date of this Agreement, no suspension or
cancellation of any of the Company Permits is pending or, to the knowledge of
the Company, threatened, except where the failure to have, or the suspension or
cancellation of, any of the Company Permits would not, individually or in the
aggregate, have a Material Adverse Effect on the Company. Neither the Company
nor any Subsidiary is in conflict with, or in default or violation of, (i) any
Law applicable to the Company or any Subsidiary or by which any property or
asset of the Company or any Subsidiary is bound or affected or (ii) any Company
Permits, except in the case of clauses (i) and (ii) for any such conflicts,
defaults or violations that would not, individually or in the aggregate, have a
Material Adverse Effect on the Company. As used in this Agreement, "Law" means
any federal, state or local statute, law, ordinance, regulation, rule, code,
order, other requirement or rule of law of the United States or any other
jurisdiction, including, without limitation, the Federal Food, Drug, and
Cosmetic Act (the "FDCA"), the Controlled Substances Act, and any other similar
act or law.

    (c) Except as would not, individually or in the aggregate, have a Material
Adverse Effect on the Company:

        (i) all manufacturing operations of the Company and the Subsidiaries are
    being conducted in substantial compliance with applicable good manufacturing
    practices;

        (ii) all necessary clearances or approvals from governmental agencies
    for all drug and device products which are manufactured or sold by the
    Company and the Subsidiaries have been obtained, and the Company and the
    Subsidiaries are in substantial compliance with the most current form of
    each applicable clearance or approval with respect to the manufacture,
    storage, distribution, promotion and sale by the Company and the
    Subsidiaries of such products;

       (iii) all of the clinical studies which have been, or are being,
    conducted by or for the Company and the Subsidiaries are being conducted in
    substantial compliance with generally accepted good clinical practices and
    all applicable government regulatory requirements;

        (iv) as of the date of this Agreement, neither the Company nor any of
    the Subsidiaries has received written notice of any petition or other
    attempt by a brand name drug company to have the therapeutic equivalence
    rating of a Subsidiary product withheld or altered;

        (v) none of the Company, the Subsidiaries or, to the Company's
    knowledge, any of their respective officers, employees or agents (during the
    term of such person's employment by the Company or a Subsidiary or while
    acting as an agent of the Company or a Subsidiary) has made any untrue
    statement of a material fact or fraudulent statement to the FDA or any
    similar governmental agency, failed to disclose a material fact required to
    be disclosed to the FDA or similar governmental agency, or committed an act,
    made a statement or failed to make a statement that could reasonably be
    expected to provide a basis for the FDA or similar governmental agency to
    invoke its policy respecting "Fraud, Untrue Statements of Material Facts,
    Bribery, and Illegal Gratuities" or similar governmental policy, rule,
    regulation or law;

        (vi) neither the Company nor any of the Subsidiaries has received any
    written notice that the FDA or any similar governmental agency has
    commenced, or threatened to initiate, any action to

                                      A-13
<PAGE>
    withdraw its approval or request the recall of any product of the Company or
    any of the Subsidiaries, or commenced, or overtly threatened to initiate,
    any action to enjoin production at any facility of the Company or any of the
    Subsidiaries.

       (vii) as to each article of drug, device, cosmetic or vitamin
    manufactured and/or distributed by the Company or any of the Subsidiaries,
    such article is not adulterated or misbranded within the meaning of the FDCA
    or any similar governmental act or Law of any jurisdiction; and

      (viii) none of the Company, the Subsidiaries or, to the Company's
    knowledge, any of their respective officers, employees or agents (during the
    term of such person's employment by the Company or a Subsidiary or while
    acting as an agent of the Company or a Subsidiary, subsidiaries or
    affiliates has been convicted of any crime or engaged in any conduct for
    which debarment or similar punishment is mandated or permitted by any
    applicable law.

    (d) As to each product subject to FDA's jurisdiction under the Federal Food,
Drug and Cosmetic Act ("FDCA") and the jurisdiction of the Drug Enforcement
Agency under the Comprehensive Drug Abuse Prevention and Control Act of 1970
("CSA") which is manufactured, tested, distributed, held, and/or marketed by the
Company, such product is being manufactured, held and distributed in compliance
with all applicable requirements under the FDCA and the CSA including, but not
limited to, those relating to investigational use, premarket clearance, good
manufacturing practices, labeling, advertising, record keeping, filing of
reports, and security.

    (e) The Company will promptly provide Parent with copies of any document
that is issued, prepared, or otherwise becomes available from the date of this
Agreement until the Effective Time which bears on the regulatory status under
the FDCA or the CSA of the Company or any product of the Company, including, but
not limited to, any deficiency letter, warning letter, non-approvable letter/
order, and withdrawal letter/order, except for documents reflecting such matters
which, individually and in the aggregate, would not have a Material Adverse
Effect on the Company.

    SECTION 4.13.  EMPLOYEE BENEFIT PLANS.

    (a) Section 4.13 of the Company Disclosure Statement includes a complete
list of all bonus, profit sharing, thrift, compensation, stock option,
restricted stock, stock purchase, pension, retirement, savings, welfare,
deferred compensation, employment, termination, severance, incentive, or other
employee benefit plans, programs and agreements providing benefits to any
employee, former employee, director or former director of the Company or any of
the Subsidiaries sponsored or maintained by or on behalf of the Company or any
of the Subsidiaries or to which the Company or any of the Subsidiaries
contributes or is obligated to contribute or otherwise may have liability
(collectively, the "Plans"). Without limiting the generality of the foregoing,
the term "Plans" includes all employee welfare benefit plans within the meaning
of Section 3(l) of the Employee Retirement Income Security Act of 1974, as
amended, and the regulations thereunder ("ERISA") and all employee pension
benefit plans within the meaning of Section 3(2) of ERISA.

    (b) With respect to each Plan, the Company has made available to Parent a
true, correct and complete copy of: (i) all plan documents, benefit schedules,
trust agreements, and insurance contracts and other funding vehicles, if any;
(ii) the most recent Annual Report (Form 5500 Series) and accompanying schedule,
if any; (iii) the current summary plan description, if any; (iv) the most recent
annual financial report, if any; (v) the most recent actuarial report, if any;
and (vi) the most recent determination letter from the Internal Revenue Service
(the "IRS"), if any.

    (c) The Company and each of the Subsidiaries has complied, and is now in
compliance, in all material respects with all provisions of ERISA, the Code and
all laws and regulations applicable to the Plans. With respect to each Plan that
is intended to be a "qualified plan" within the meaning of Section 401(a) of the
Code, the IRS has issued a favorable determination letter, and to the knowledge

                                      A-14
<PAGE>
of the Company nothing has occurred at the date hereof that would reasonably be
expected to cause the loss of such qualification.

    (d) All contributions required to be made to any Plan by applicable law or
regulation or by any plan document or other contractual undertaking, and all
premiums due or payable with respect to insurance policies funding any Plan, for
any period through the date hereof have been timely made or paid in full or, to
the extent not required to be made or paid on or before the date hereof, have
been fully reflected in the financial statements of the Company included in the
SEC Reports to the extent required under GAAP.

    (e) With respect to each plan which is subject to Title IV or Section 302 of
ERISA or Section 412 of the Code maintained or contributed to (or required to be
contributed to) by the Company, any Subsidiary or any ERISA Affiliate (as
hereinafter defined), (i) there does not now exist, nor do any circumstances
exist that could result in, any liability of the Company or any of the
Subsidiaries under Title IV of ERISA (other than for the payment of premiums,
all of which have been paid when due), (ii) neither the Company nor any of the
Subsidiaries has incurred any accumulated funding deficiency within the meaning
of Section 302 of ERISA or Section 412 of the Code (whether or not waived) and
there has been no waiver or application for a waiver of any minimum funding
standard or extension of any amortization period under Section 412 of the Code
or Part 3 of Subtitle B of Title I of ERISA, (iii) no "reportable event" (as
such term is defined in Section 4043 of ERISA and the regulations thereunder),
except as waived by PBGC regulation, has occurred or is expected to occur, (iv)
no notice of intent to terminate has been filed with the Pension Benefit
Guaranty Corporation, (v) the Pension Benefit Guaranty Corporation has not
instituted any proceedings to terminate the plan or to appoint a trustee to
administer the plan, and (vi) there has been no event requiring disclosure under
Section 4063(a) of ERISA. For purposes of this Section 4.13, the term "ERISA
Affiliate" shall mean any business or entity (whether or not incorporated) which
is a member of the same "controlled group of corporations", under "common
control" or an "affiliated service group" with the Company or any Subsidiary
within the meaning of Section 414(b), (c) or (m) of the Code, or is under
"common control" with the Company or any Subsidiary within the meaning of
Section 4001(a)(14) of ERISA.

    (f) Neither the Company nor any Subsidiary nor any ERISA Affiliate has been
required to contribute to, or incurred any withdrawal liability (within the
meaning of Section 4201 of ERISA) with respect to any plan which is a
multiemployer plan as defined in ERISA Section 3(37) (a "Multiemployer Plan").
Neither the Company nor any Subsidiary nor any ERISA Affiliate has completely or
partially withdrawn from any Multiemployer Plan. No Multiemployer Plan as to
which the Company, any Subsidiary or any ERISA Affiliate is required to
contribute is in reorganization within the meaning of Part 3 of Subtitle E of
Title IV of ERISA. The Company has delivered to Parent a schedule showing the
contributions of the Company, any of the Subsidiaries, and any ERISA Affiliates
to each of the Multiemployer Plans for the most recent five plan years.

    (g) The execution of, and performance of the transactions contemplated in,
this Agreement will not, either alone or upon the occurrence of subsequent
events, result in any payment (whether of severance pay or otherwise),
acceleration, forgiveness of indebtedness, vesting, distribution, increase in
benefits or obligation to fund benefits with respect to any employee or former
employee of the Company or any of the Subsidiaries. The only severance
agreements or severance policies applicable to the Company or any of the
Subsidiaries in the event of a change of control of the Company are the
agreements referred to in Section 4.13 of the Company Disclosure Statement.

    (h) There are no pending actions, claims or lawsuits which have been
asserted, instituted or, to the knowledge of the Company, threatened in
connection with any of the Plans (other than routine claims for benefits).

    (i) Neither the Company nor any of the Subsidiaries maintains or contributes
to any plan or arrangement which provides or has any liability to provide life
insurance or medical or other welfare

                                      A-15
<PAGE>
benefits to any employee, former employee, director or former director upon his
retirement or termination of service (other than continuation coverage required
under Section 4980B of the Code), and neither the Company nor any of the
Subsidiaries has ever represented, promised or contracted (whether in oral or
written form) to any employee, former employee, director or former director that
such benefits would be provided.

    (j) The Company, the Subsidiaries and their ERISA Affiliates are in
compliance with the continuation coverage provisions of Section 601 et seq. of
ERISA and Section 4980B of the Code.

    (k) None of the Company, any of its Subsidiaries or any employee of the
foregoing, nor any trustee, administrator, other fiduciary or any other "party
in interest" or "disqualified person" with respect to the Plans, has engaged in
a "prohibited transaction" (as such term is defined in Section 4975 of the Code
or Section 406 of ERISA) that could result in a material tax or penalty on the
Company or its Subsidiaries under Section 4975 of the Code or Section 502(i) of
ERISA.

    SECTION 4.14.  INTELLECTUAL PROPERTY.

    (a) Except as would not, individually and in the aggregate, have a Material
Adverse Effect on the Company, (i) the Company and each of the Subsidiaries
owns, has the right to acquire or is licensed or otherwise has the right to use
and has maintained in good standing (in each case, clear of any Liens of any
kind), all Intellectual Property (as defined below) used in or necessary for the
conduct of its business as currently conducted, including the items listed in
Section 4.14 of the Company Disclosure Statement, (ii) no claims are pending or,
to the knowledge of the Company, threatened that the Company or any of the
Subsidiaries is infringing on or otherwise violating the rights of any person
with regard to any Intellectual Property, (iii) to the knowledge of the Company,
no person is infringing on or otherwise violating any right of the Company or
any of the Subsidiaries with respect to any Intellectual Property owned by
and/or licensed to the Company or the Subsidiaries (iv) to the knowledge of the
Company, no other firm, corporation, association or person claims the right to
use in connection with similar or closely related goods and in the same
geographic area, any mark which is identical or confusingly similar to any of
the Intellectual Property; (v) the Company has no knowledge of any claim that
any third party asserts ownership rights in any of the Intellectual Property;
(vi) the Company has no knowledge of any claim or knowledge of any facts that
would give the Company any reason to reasonably believe that the Company's or
its Subsidiaries' use of any Intellectual Property infringes any right of any
third party; (vii) the Company has no knowledge and there are no facts known to
the Company that would give the Company any reasonable basis to believe that any
third party is infringing on any of the Company's or its Subsidiaries' rights in
any of the Intellectual Property; (viii) the Company has no knowledge and there
are no facts known to the Company that would give the Company any reasonable
basis to believe that any of its actions or the actions of its Subsidiaries has
infringed or is infringing on any third party's Intellectual Property rights;
(ix) to the knowledge of the Company, there are no undisclosed government
restrictions, domestic or foreign, which specifically limit the manner in which
any of the Intellectual Property may be used or licensed; and (x) to the
knowledge of the Company, neither the Company, its Subsidiaries nor any of their
respective officers or directors has disclosed any confidential information of
the Company or any of its Subsidiaries which would constitute trade secrets,
except in the ordinary course of business of the Company and its Subsidiaries or
with the authority of the Company or its Subsidiaries.

    (b) For purposes of this Agreement, "Intellectual Property" shall mean
patents, copyrights, trademarks (registered or unregistered), service marks,
brand names, trade dress, trade names, computer software programs and
applications (including imbedded software), and registrations in any
jurisdiction of, and applications in any jurisdiction to register, the
foregoing; and trade secrets and rights in any jurisdiction to limit the use or
disclosure thereof by any person.

    SECTION 4.15  ENVIRONMENTAL MATTERS.  Except as would not, individually or
in the aggregate, have a Material Adverse Effect on the Company, (i) to the
Company's knowledge, no Hazardous

                                      A-16
<PAGE>
Materials (as defined below) are present at, on or under any real property
currently or to the Company's knowledge, formerly owned, leased or operated by
the Company or any Subsidiary to an extent or in a manner or condition now
requiring investigation, response, corrective action by the Company or any
Subsidiary or for which the Company or any Subsidiary is financially
responsible, or other action, or that would be reasonably likely to result in
liability of, or costs to, the Company or any of the Subsidiaries, in each case
under any Environmental Law (as defined below), (ii) there is currently no
civil, criminal or administrative action, suit, demand, hearing, proceeding,
notice of violation, investigation, notice or demand letter, or request for
information pending or to the knowledge of the Company, threatened, under any
Environmental Law against the Company or any of the Subsidiaries, (iii) the
Company and the Subsidiaries have not received any written claims or notices
alleging liability under any Environmental Law currently pending, and the
Company has no knowledge of any circumstances that would reasonably be expected
to result in such claims or notices, (iv) the Company and each of the
Subsidiaries are currently in compliance, and within the period of applicable
statutes of limitation have complied, with all, and have no liability under any,
applicable Environmental Laws, (v) no property or facility currently or, to the
Company's knowledge, formerly owned, leased or operated by the Company or any of
the Subsidiaries or any of their respective predecessors-in-interest, or at
which Hazardous Materials have been manufactured, handled, to the Company's
knowledge, tested, formulated, prepared, encapsulated, packaged, bottled or
stored for the Company or any of its Subsidiaries, or Hazardous Materials of the
Company or any of the Subsidiaries have been stored, treated or disposed of, is
listed or proposed for listing on the National Priorities List or the
Comprehensive Environmental Response, Compensation and Liability Information
System, both promulgated under the Comprehensive Environmental Response,
Compensation and Liability Act of 1980, as amended, or on any comparable list
established under any Environmental Law, (vi) the execution, delivery and
performance of this Agreement and the consummation of the transactions
contemplated hereby will not affect the validity of any Environmental Permits
held by the Company or any of the Subsidiaries, and will not require any
remediation under any Environmental Law, (vii) no friable asbestos now requiring
abatement is present in, on, or at any property, facility or equipment of the
Company or any of the Subsidiaries, (viii) to the Company's knowledge, there are
no past or present events, conditions, activities, or practices, including,
without limitation, the disposal, emission or release of any Hazardous
Materials, which would reasonably be expected to prevent the Company and the
Subsidiaries' compliance with any Environmental Law, or which would reasonably
be expected to give rise to any liability of the Company or any of the
Subsidiaries under any Environmental Law, (ix) no Lien has been asserted or
recorded, or to the knowledge of the Company and each of the Subsidiaries
threatened, under any Environmental Law with respect to any assets, facility,
inventory, or property currently owned, leased or operated by the Company or any
of the Subsidiaries, (x) neither the Company nor any of the Subsidiaries has
received a written claim pursuant to a contract or agreement assuming any
liabilities or obligations arising under any Environmental Law including,
without limitation, any such liabilities or obligations with respect to formerly
owned, leased or operated real property or facilities, or former divisions or
subsidiaries, (xi) neither the Company nor any of the Subsidiaries has entered
into or agreed to any judgment, decree or order by any judicial or
administrative tribunal or agency and neither the Company nor any of the
Subsidiaries is subject to any judgment, decree order or agreement, in each case
relating to compliance with any Environmental Law or requiring the Company or
any of the Subsidiaries to conduct any investigation, response, corrective or
other action under any Environmental Law, and (xii) there are no underground
storage tanks or related piping, or impoundments, at any real property owned,
operated or leased by the Company or any of the Subsidiaries, and any former
such tanks, piping, or impoundments, on any such property which have been
removed or closed, have been removed or closed in accordance with applicable
Environmental Laws.

    For purposes of this Agreement, the term "Environmental Laws" means the
common law and all applicable federal, state, local and foreign laws, rules,
regulations, codes, orders, decrees, judgments or

                                      A-17
<PAGE>
injunctions issued, promulgated, approved or entered thereunder relating to
pollution or protection of human safety or the environment (including, without
limitation, ambient air, indoor air, surface water, ground water, land surface,
subsurface strata, and natural resources such as wetlands, flora, fauna),
including without limitation, laws relating to experimental use of animals or
disposal of animal carcasses, emissions, discharges, releases or threatened
releases of Hazardous Materials into the environment, or otherwise relating to
the manufacture, processing, generation, distribution, use, treatment, storage,
disposal, transport or handling of Hazardous Materials. For purposes of this
Agreement, the term "Hazardous Materials" means any pollutant, contaminant,
toxic, hazardous or extremely hazardous substance, constituent or waste,
medical, biohazardous, or infectious waste, animal carcass, any toxin, virus,
infectious disease or disease-causing agent or any other constituent, waste,
chemical, compound, material or substance, including without limitation,
petroleum or any petroleum product, including crude oil or any fraction thereof,
subject to regulation by or that can give rise to liability under any
Environmental Law. For purposes of this Agreement, the term "Environmental
Permit" means any permit, license, approval, consent or other authorization
provided or issued by any government or regulatory authority pursuant to an
Environmental Law.

    The Company has made available to the Purchaser and Parent all records and
files, including, but not limited to, all assessments, reports, studies, audits,
analyses, tests and data in the possession, custody or control of the Company or
any Subsidiary relating to the existence of Hazardous Materials at facilities or
properties currently or formerly owned, operated, leased or used by the Company
or any of the Subsidiaries or concerning compliance by the Company and any
Subsidiaries with, or liability of any of them under, any Environmental Law.

    SECTION 4.16.  MATERIAL ADVERSE CHANGE.

    (a) Since March 31, 1999, there has not been any change, or any development
that is reasonably likely to result in a change, that would have a Material
Adverse Effect on the Company. Since March 31, 1999, the Company and the
Subsidiaries have conducted their businesses only in the ordinary course of
business consistent with past practices and there has not been, directly or
indirectly:

        (i) any declaration, setting aside or payment of any dividend or other
    distribution with respect to any capital stock of the Company;

        (ii) any split, combination or reclassification of any of its capital
    stock or any issuance or the authorization of any issuance of any other
    securities in respect of, in lieu of or in substitution for shares of the
    Company's capital stock;

       (iii) any payment or granting by the Company or any of the Subsidiaries
    of any increase in compensation to any director, officer or, other than in
    the ordinary course of business consistent with past practice, employee of
    the Company or any of the Subsidiaries;

        (iv) any granting by the Company or any of the Subsidiaries to any such
    director or officer, other than in the ordinary course of business
    consistent with past practice, employee of any increase in severance or
    termination pay;

        (v) any entry by the Company or any of the Subsidiaries into any
    employment, consulting, severance or termination agreement with any such
    director or officer, other than in the ordinary course of business
    consistent with past practice;

        (vi) any adoption or increase in payments to or benefits under any
    profit sharing, bonus, deferred compensation, savings, insurance, pension,
    retirement or other employee benefit plan for or with any employees of the
    Company or any of the Subsidiaries;

       (vii) any change in accounting methods, principles or practices by the
    Company or any of the Subsidiaries, except insofar as may have been required
    by changes in GAAP; or

      (viii) any agreement to do any of the things described in the preceding
    clauses (i) through (vii).

                                      A-18
<PAGE>
    SECTION 4.17.  TAXES.  (i) The Company and each Subsidiary have prepared and
timely filed with the appropriate governmental agencies all Tax Returns required
to be filed for any period (or portion thereof), taking into account any
extension of time to file granted to or obtained on behalf of the Company and/or
such Subsidiary, and each such Tax Return is accurate and complete; (ii) to the
Company's knowledge, the Company and each Subsidiary have timely paid all Taxes
due and payable by them and have made adequate provision (in accordance with
GAAP) for any Taxes of the Company and/or such Subsidiary that are not yet due
and payable; (iii) to the Company's knowledge, the Company and each Subsidiary
have withheld and paid in a timely manner all Taxes required to have been
withheld and paid by them; (iv) any deficiencies or assessments asserted in
writing against the Company and/or any Subsidiary by any taxing authority have
been paid or fully and finally settled and no issue previously raised by any
such taxing authority reasonably could be expected to result in a proposed
deficiency or assessment for any prior, parallel or subsequent period (including
periods subsequent to the date hereof); (v) neither the Company nor any
Subsidiary is presently under examination or audit by any taxing authority and,
to the knowledge of the Company, no examination or audit of the Company or any
Subsidiary is pending or threatened by any taxing authority; (vi) no extension
of the period for assessment or collection of any Tax of the Company or any
Subsidiary is currently in effect and no extension of time within which to file
any Tax Return of the Company or any Subsidiary has been requested, which Tax
Return has not since been filed; (vii) neither the Company nor any Subsidiary
has made or agreed to make or was or is required to make any adjustment under
Section 481 of the Internal Revenue Code of 1986, as amended (the "Code") (or
any similar provision of state, local or foreign law); (viii) there are no Tax
sharing agreements or arrangements to which the Company or any Subsidiary is a
party; (ix) neither the Company nor any Subsidiary has made an election under
Section 341(f) of the Code (or any similar provision of state, local or foreign
law); (x) neither the Company nor any Subsidiary is a party to any agreement or
arrangement that provides for the payment of any amount, or the provision of any
other benefit, that could constitute a "parachute payment" within the meaning of
Section 280G of the Code (or any similar provision of state, local or foreign
law); (xi) no stock of the Company is a "United States real property interest,"
within the meaning of Section 897(c) of the Code; (xii) there are no "excess
loss accounts" (as defined in Treas. Reg. Section1.1502-19) with respect to any
stock of any Subsidiary; (xiii) neither the Company nor any Subsidiary has any
(a) deferred gain or loss (1) arising from any deferred intercompany
transactions (as described in Treas. Reg. SectionSection 1.1502-13 and
1.1502-13T prior to amendment by Treasury Decision 8597 (issued July 12, 1995))
or (2) with respect to the stock or obligations of any other member of any
affiliated group (as described in Treas. Reg. SectionSection 1.1502-14 and
1.1502-14T prior to amendment by Treasury Decision 8597) or (b) any gain subject
to Treas. Reg. Section 1.1502-13, as amended by Treasury Decision 8597; (xiv)
the Company has delivered to Purchaser true and complete copies of (a) all
Federal, state, local and foreign income or franchise Tax Returns filed by the
Company and/or any Subsidiary for all open years (except for those Tax Returns
that have not yet been filed) and (b) any audit reports issued by the IRS or any
other taxing authority with respect to any period that is still open.

    SECTION 4.18.  MATERIAL CONTRACTS.  (a) Other than as disclosed in Section
4.18 of the Company Disclosure Statement, there are no (i) agreements of the
Company or any of the Subsidiaries containing an unexpired covenant not to
compete applying to the Company or any of the Subsidiaries, (ii) employment or
consulting agreements, or arrangements, (iii) collective bargaining agreements,
(iv) interest rate, currency or commodity hedging, swap or similar derivative
transactions to which the Company or any of the Subsidiaries is a party, (v)
material agreements providing for payment based on revenues, sales or profits,
(vi) agreements between the Company or any of the Subsidiaries, on the one hand,
and any affiliate of the Company, on the other hand, (vii) any other material
agreement not entered into in the ordinary course of business or (viii) other
contracts or amendments thereto that would be required to be filed and have not
been filed as a exhibit to a Form 10-K filed by the Company with the SEC as of
the date of this Agreement (collectively, the "Material Contracts").

                                      A-19
<PAGE>
Assuming each Material Contract constitutes a valid and binding obligation of
each other party thereto, each Material Contract is a valid and binding
obligation of the Company or the applicable Subsidiary, as the case may be. To
the Company's knowledge, each Material Contract is a valid and binding
obligation of each other party thereto, and each such Material Contract is in
full force and effect and is enforceable by the Company or the applicable
Subsidiary in accordance with its terms, except as such enforcement may be
limited by the Bankruptcy Exceptions and subject to general principles of
equity. To the knowledge of the Company, there are no existing defaults (or
circumstances or events that, with the giving of notice or lapse of time or both
would become defaults) of the Company, any Subsidiary or any third party under
any of the Material Contracts. Neither the Company nor any of its Subsidiaries
is a party to, or bound by any unexpired, undischarged or unsatisfied written or
oral contract, agreement, indenture, mortgage, debenture, note or other
instrument under the terms of which performance by the Company or its
Subsidiaries according to the terms of this Agreement will be a default of a
material provision under or an event of acceleration, or grounds for
termination, or whereby timely performance by the Company of this Agreement may
be prohibited or delayed. Immediately after the Effective Time, except as
contemplated by this Agreement, neither the Company nor any of its Subsidiaries
will be bound by the terms of any stock option agreement, registration rights
agreement, stockholders agreement, management agreement, consulting agreement or
any other agreement relating to the equity or management of the Company or its
Subsidiaries.

    (b) The Company's relationship with Merck & Co., Inc. ("Merck") is in good
standing. To the Company's knowledge, Merck is willing to negotiate a firm
supply agreement with the Company for MK3 (subject to acceptable terms).

    SECTION 4.19.  INSURANCE.  The Company and the Subsidiaries have obtained
and maintained in full force and effect insurance with responsible and reputable
insurance companies or associations in such amounts, on such terms and covering
such risks, as is in the Company's judgment adequate to insure against risks to
which the Company is normally exposed in its day-to-day operations, consistent
with industry practice for companies (i) engaged in similar businesses and (ii)
of at least similar size to that of the Company and the Subsidiaries, and have
maintained in full force and effect public liability insurance, insurance
against claims for personal injury or death or property damage occurring in
connection with any of the activities of the Company or the Subsidiaries or any
of the properties owned, occupied or controlled by the Company or any of the
Subsidiaries, in such amount as reasonably deemed necessary by the Company. To
the Company's knowledge, each such policy is in full force and effect, no notice
of termination, cancellation or reservation of rights has been received with
respect to any such policy, there is no default with respect to any provision
contained in any such policy, and there has not been any failure to give any
notice or present any claim under any such policy in a timely fashion or in the
manner or detail required by any such policy, except for any such failures to be
in full force and effect, any such terminations, cancellations, reservations or
defaults, or any such failures to give notice or present claims which would not,
individually or in the aggregate, have a Material Adverse Effect on the Company.
The Company Balance Sheet reflects adequate reserves for any insurance programs
which require (or have required) the Company or any of the Subsidiaries to
retain a portion of each loss, including, but not limited to, deductible and
self-insurance programs.

    SECTION 4.20.  YEAR 2000  Either (i) all Information Systems and Equipment
(as defined below) are in all material respects either Year 2000 Compliant (as
defined below) or (ii) any reprogramming, remediation, or any other corrective
action, including the internal testing of all such Information Systems and
Equipment, will be completed in all material respects by July 31, 1999. Further,
to the extent that such reprogramming/remediation and testing action is
required, the cost thereof, as well as the cost of the reasonably foreseeable
consequence of failure to become Year 2000 Compliant, to the Company and the
Subsidiaries (including, without limitation, reprogramming errors and the
failure of other systems or equipment) will not result in a Material Adverse
Effect on the Company.

                                      A-20
<PAGE>
    "Year 2000 Compliant" means that all Information Systems and Equipment
accurately process date data (including, but not limited to, calculating,
comparing and sequencing), before, during and after the year 2000, as well as
same and multi-century dates, or between the years 1999 and 2000, taking into
account all leap years, including the fact that the year 2000 is a leap year,
and further, that when used in combination with, or interfacing with, other
Information Systems and Equipment, shall accurately accept, release and exchange
date data, and shall in all material respects continue to function in the same
manner as it performs today and shall not otherwise materially impair the
accuracy or functionality of Information Systems and Equipment.

    "Information Systems and Equipment" means all material computer hardware,
firmware and software, as well as other information processing systems, or any
equipment containing embedded microchips, whether directly owned, licensed,
leased, operated or otherwise controlled by the Company or any of the
Subsidiaries, including through third-party service providers, and which, in
whole or in part, are integral to, the Company's or any of the Subsidiaries'
conduct of their business.

    SECTION 4.21  AFFILIATES.  The Company has delivered to Parent in Section
4.21 of the Company Disclosure Statement a list identifying all persons who to
the best of the Company's knowledge may be deemed to be "affiliates" of the
Company for purposes of Rule 145 under the Securities Act ("Affiliates") and,
promptly after the execution of this Agreement, the Company will deliver the
written agreement of each such person promptly after execution of this
Agreement, substantially in the form of Annex III.

                                   ARTICLE V
           REPRESENTATIONS AND WARRANTIES OF PARENT AND THE PURCHASER

    Parent and the Purchaser represent and warrant to the Company as follows:

    SECTION 5.01  ORGANIZATION AND QUALIFICATION.  Parent is a corporation duly
organized and validly existing under the laws of Ontario, Canada. The Purchaser
is a corporation duly organized, validly existing and in good standing under the
laws of the State of Delaware. Each of Parent and the Purchaser has the
requisite corporate power and authority to own, operate or lease its properties
and to carry on its business as it is now being conducted, and is duly qualified
or licensed to do business, and is in good standing, in each jurisdiction in
which the nature of its business or the properties owned, operated or leased by
it makes such qualification, licensing or good standing necessary, except where
the failure to have such power or authority, or the failure to be so qualified,
licensed or in good standing, would not have a Material Adverse Effect on Parent
(as defined below). The term "Material Adverse Effect on Parent" means any
change in, or effect on, the business, results of operations, financial
condition or prospects of Parent or any of its subsidiaries (the "Parent
Subsidiaries") that is or could reasonably be expected to be materially adverse
to Parent and its subsidiaries taken as a whole.

    SECTION 5.02  AUTHORITY RELATIVE TO THIS AGREEMENT.  Each of Parent and the
Purchaser has all necessary corporate power and authority to execute and deliver
this Agreement and to consummate the transactions contemplated hereby. The
execution and delivery of this Agreement by Parent and the Purchaser and the
consummation by Parent and the Purchaser of the transactions contemplated hereby
have been duly and validly authorized and approved by the respective Boards of
Directors of Parent and the Purchaser and no other corporate proceedings on the
part of Parent or the Purchaser are necessary to authorize or approve this
Agreement or to consummate the transactions contemplated hereby. This Agreement
has been duly executed and delivered by each of Parent and the Purchaser and,
assuming the due and valid authorization, execution and delivery by the Company,
constitutes a valid and binding obligation of each of Parent and the Purchaser
enforceable against each of them in accordance with its terms, except that such
enforceability (i) may be limited by the Bankruptcy Exceptions and (ii) is
subject to general principles of equity.

                                      A-21
<PAGE>
    SECTION 5.03.  NO CONFLICT; REQUIRED FILINGS AND CONSENTS.

    (a) None of the execution and delivery of this Agreement by Parent and the
Purchaser, the consummation by Parent and the Purchaser of the transactions
contemplated hereby or compliance by Parent and the Purchaser with any of the
provisions hereof will require any Consent of any Governmental Entity or person
who is not a Governmental Entity, except for (i) compliance with any applicable
requirements of the Exchange Act, (ii) the filing of a certificate of merger
pursuant to the GCL, (iii) compliance with the HSR Act and (iv) compliance with
or receiving exemptions from the applicable requirements of the Ontario
Securities Act and the by-laws of The Toronto Stock Exchange.

    (b) Except as set forth in clause (a) of this Section 5.03, none of the
execution and delivery of this Agreement by Parent or the Purchaser, the
consummation by Parent or the Purchaser of the transactions contemplated hereby
or compliance by Parent or the Purchaser with any of the provisions hereof will
(i) conflict with or violate the organizational documents of Parent or the
Purchaser, (ii) conflict with or violate any statute, ordinance, rule,
regulation, order, judgment or decree applicable to Parent or the Purchaser, or
any of their subsidiaries, or by which any of them or any of their respective
properties or assets may be bound or affected, or (iii) result in a Violation
pursuant to any note, bond, mortgage, indenture, contract, agreement, lease,
license, permit, franchise or other instrument or obligation to which Parent or
the Purchaser, or any of their respective subsidiaries, is a party or by which
any of their respective properties or assets may be bound or affected, except,
in the case of clause (ii) and (iii), for any such Violation which would not,
individually or in the aggregate, have a Material Adverse Effect on Parent.

    SECTION 5.04.  BROKERS.  Except for the engagement of Donaldson, Lufkin &
Jenrette Securities Corporation, none of the Parent nor the Purchaser or any of
their respective officers, directors, or employees has employed any broker or
finder or incurred any liability for any brokerage fees, commissions or finder's
fees in connection with the transactions contemplated by this Agreement.

    SECTION 5.05  CAPITALIZATION.  Parent has heretofore made available to the
Company a complete and correct copy of the Articles of Amalgamation and the
by-laws, each as amended to the date hereof, of Parent. The authorized capital
stock of Parent consists of 120,000,000 common shares and an unlimited number of
class A special shares (the "Special Stock"). As of the close of business on the
day prior to execution of this Agreement, there were no shares of Special Stock
issued or outstanding. As of the close of business on June 30, 1999, there were
24,352,019 shares of Parent Common Stock issued, of which none were owned by
Parent or a wholly-owned subsidiary. Parent has no shares of capital stock
reserved for issuance. As of June 30, 1999 there were options outstanding for
2,265,792 shares of Parent Common Stock under Parent's stock option plan (the
"Parent Options"). Since June 30, 1999, Parent has not issued any Parent Options
or shares of capital stock except pursuant to the exercise of Parent Options
outstanding as of such date and in accordance with their terms. All the
outstanding shares of Parent Common Stock are, and all shares Parent Common
Stock which may be issued pursuant to the exercise of outstanding Parent Options
will be, when issued in accordance with the respective terms thereof, duly
authorized, validly issued, fully paid and nonassessable. There are no bonds,
debentures, notes or other indebtedness having general voting rights (or
convertible into securities having such rights) ("Parent Voting Debt") of Parent
or any of the Parent Subsidiaries issued and outstanding. Except for the Parent
Options and warrants for 3,737,000 shares of Parent Common Stock, there are no
existing options, warrants, calls, subscriptions or other rights, agreements,
arrangements or commitments of any character, relating to the issued or unissued
capital stock of Parent or any of its subsidiaries, obligating Parent or any of
the Parent Subsidiaries to issue, transfer or sell or cause to be issued,
transferred or sold any shares of capital stock or Parent Voting Debt of, or
other equity interest in, Parent or any of the Parent Subsidiaries or securities
convertible into or exchangeable for such shares or equity interests or
obligations of Parent or any of the Parent Subsidiaries to grant, extend or
enter into any such option, warrant, call, subscription or other right,
agreement, arrangement or commitment. There are no outstanding contractual
obligations of Parent or

                                      A-22
<PAGE>
any of the Parent Subsidiaries to repurchase, redeem or otherwise acquire any
capital stock of Parent or any of the Parent Subsidiaries. As of the date
hereof, neither parent nor any of its affiliates owns any Common Shares of the
Company other than those disclosed in Amendment No. 1 to the Schedule 13D to be
filed July 26, 1999.

    SECTION 5.06.  REGISTRATION STATEMENT; PROXY STATEMENTS.  None of the
information provided by Parent for inclusion or incorporation by reference in
(i) the registration statement registering under the Securities Act the Parent
Common Stock to be issued at the Effective Time (such registration statement as
amended by any amendments thereto being referred to herein as the "Registration
Statement") or (ii) the Company Proxy Statement shall, in the case of the
Registration Statement, at (i) the time the Registration Statement becomes
effective and (ii) the Effective Time, and in the case of the Company Proxy
Statement, on the date the Proxy Statement is first mailed to stockholders, at
the time of the Special Meetings and at the Effective Time, contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary in order to make the statements therein not
misleading. If at any time prior to the Effective Time any event with respect to
Parent shall occur which is required to be described in the Registration
Statement or Company Proxy Statement, such event shall be so described, and an
amendment or supplement shall be promptly filed with the SEC and, as required by
law, disseminated to the stockholders of the Company. The Registration Statement
and Company Proxy Statement will (with respect to Parent and the Purchaser)
comply as to form in all material respects with the applicable provisions of the
Securities Act and the Exchange Act, as the case may be.

    SECTION 5.07.  SEC REPORTS AND FINANCIAL STATEMENTS.

    (a) The Parent has filed with the SEC all forms, reports, schedules,
registration statements and definitive proxy statements required to be filed by
the Parent with the SEC until the date hereof (the "Parent SEC Reports"). As of
their respective dates, and except as subsequently amended prior to the date
hereof, the Parent SEC Reports complied in all material respects with the
requirements of the Exchange Act or the Securities Act of 1933 and the rules and
regulations of the SEC promulgated thereunder applicable, as the case may be, to
such Parent SEC Reports, and none of the Parent SEC Reports contained any untrue
statement of a material fact or omitted to state a material fact required to be
stated therein or necessary to make the statements made therein, in light of the
circumstances under which they were made, not misleading.

    (b) The consolidated balance sheets as of December 31, 1998 and 1997 and the
related consolidated statements of income, shareholders' equity and cash flows
(including the notes thereto) for each of the three years in the period ended
December 31, 1998 (including the related notes and schedules thereto) of the
Parent contained in the Parent's Form 20-F for the year ended December 31, 1998
included in the Parent SEC Reports present fairly the consolidated financial
position and the consolidated results of operations and cash flows of the Parent
and its consolidated subsidiaries as of the dates or for the periods presented
therein in conformity with Canadian generally accepted accounting principles
applied on a consistent basis as of and during the periods involved ("Canadian
GAAP").

    (c) The consolidated balance sheets and the related statements of income and
cash flows (including in each case the related notes thereto) of the Parent
contained in the Form 6-K for the periods ended March 31, 1999, included in the
Parent SEC Reports (the "Quarterly Financial Statements") have been prepared in
accordance with the requirements for interim financial statements contained in
Regulation S-X under the Exchange Act. The Quarterly Financial Statements
reflect all adjustments, which include only normal recurring adjustments,
necessary to present fairly and do present fairly the consolidated financial
position, results of operations and cash flows of Parent and its consolidated
subsidiaries for the period presented therein in conformity with Canadian GAAP
applied on a consistent basis during the periods involved.

                                      A-23
<PAGE>
    (d) Parent has no liabilities or obligations of any nature (whether
absolute, accrued, contingent, unliquidated, conditional or otherwise) except
for liabilities or obligations (i) reflected or reserved against on the balance
sheet as at March 31, 1999 included in the Quarterly Financial Statements (the
"Parent Balance Sheet"), (ii) incurred in the ordinary course of business
consistent with past practice since such date or (iii) which would not,
individually or in the aggregate, have a Material Adverse Effect on Parent.

    SECTION 5.08  MATERIAL ADVERSE CHANGE.  Since March 31, 1999, there has not
been any change, or any development that is reasonably likely to result in a
change, that would have a Material Adverse Effect on Parent.

    SECTION 5.09.  INFORMATION.  None of the information supplied or to be
supplied by Parent and the Purchaser in writing specifically for inclusion in
(i) the Offer Documents, (ii) the Schedule 14D-9 (including the information
included therein in order to comply with Section 14(f) of the Exchange Act and
Rule 14f-1 thereunder), (iii) the Proxy Statement or (iv) the Other Filings
will, at the respective times filed with the SEC or such other Governmental
Entity and, in addition, in the case of the Proxy Statement, at the date it or
any amendment or supplement is mailed to Shareholders, at the time of the
Special Meeting and at the Effective Time, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements made therein, in light of the
circumstances under which they were made, not misleading.

    SECTION 5.10  FINANCING.  Parent and Purchaser have made adequate
arrangements to have, and will have available to them, upon consummation of the
Offer, immediately available funds necessary to consummate the Offer.

    SECTION 5.11.  LITIGATION.  There is no suit, action, proceeding or
governmental investigation before any commission or other administrative
authority pending or, to the knowledge of Parent, threatened against or
affecting Parent or any of the Parent Subsidiaries, with respect to or affecting
Parent's or any of the Parent Subsidiaries' operations, business, products,
sales practices or financial condition, except for suits, actions and
proceedings that, individually or in the aggregate, would not have a Material
Adverse Effect on Parent, nor is there any judgment, decree, injunction or order
of any Governmental Entity or arbitrator outstanding against Parent or any of
the Subsidiaries, except for judgments, decrees, injunctions and orders that
would not, individually or in the aggregate, have a Material Adverse Effect on
Parent. There are no facts known to Parent which, if known by a potential
claimant or any Governmental Entity, would reasonably give rise to a claim or
proceeding which, if asserted or conducted, would be reasonably likely to have a
Material Adverse Effect on Parent.

    SECTION 5.12.  COMPLIANCE WITH APPLICABLE LAWS; PERMITS.

    (a) Parent and the Parent Subsidiaries have been in compliance with all
laws, regulations and orders of any Governmental Entity applicable to it or the
Parent Subsidiaries, except for such failures so to comply which, individually
and in the aggregate, would not have a Material Adverse Effect on Parent. The
business operations of Parent and the Parent Subsidiaries have not been
conducted in violation of any law, ordinance or regulation of any Governmental
Entity, except for possible violations which, individually or in the aggregate,
would not have a Material Adverse Effect on Parent.

    (b) Each of Parent and the Parent Subsidiaries is in possession of all
franchises, grants, authorizations, licenses, establishment registrations,
product listings, permits, easements, variances, exceptions, consents,
certificates, approvals and orders of any Governmental Entity, including,
without limitation, the FDA, the DEA, and similar authorities in other
jurisdictions, necessary for Parent or any Parent Subsidiary to own, lease and
operate its properties or to produce, store, distribute and market its products
or otherwise to carry on its business as it is now being conducted (the "Parent
Permits"), except where the failure to have, or the suspension or cancellation
of, any of the Parent Permits would not, individually or in the aggregate, have
a Material Adverse Effect on Parent, and, as of the date of

                                      A-24
<PAGE>
this Agreement, no suspension or cancellation of any of the Parent Permits is
pending or, to the knowledge of Parent, threatened, except where the failure to
have, or the suspension or cancellation of, any of the Parent Permits would not,
individually or in the aggregate, have a Material Adverse Effect on Parent.
Neither Parent nor any Parent Subsidiary is in conflict with, or in default or
violation of, (i) any Law applicable to Parent or any Parent Subsidiary or by
which any property or asset of Parent or any Parent Subsidiary is bound or
affected or (ii) any Parent Permits, except in the case of clauses (i) and (ii)
for any such conflicts, defaults or violations that would not, individually or
in the aggregate, have a Material Adverse Effect on Parent.

    (c) Except as would not, individually or in the aggregate, have a Material
Adverse Effect on Parent:

        (i) all manufacturing operations of Parent and the Parent Subsidiaries
    are being conducted in substantial compliance with applicable good
    manufacturing practices;

        (ii) all necessary clearances or approvals from governmental agencies
    for all drug and device products which are manufactured or sold by Parent
    and the Parent Subsidiaries have been obtained, and Parent and the Parent
    Subsidiaries are in substantial compliance with the most current form of
    each applicable clearance or approval with respect to the manufacture,
    storage, distribution, promotion and sale by Parent and the Parent
    Subsidiaries of such products;

       (iii) all of the clinical studies which have been, or are being,
    conducted by or for Parent and the Parent Subsidiaries are being conducted
    in substantial compliance with generally accepted good clinical practices
    and all applicable government regulatory requirements;

        (iv) as of the date of this Agreement, neither the Parent nor any of the
    Parent Subsidiaries has received written notice of any petition or other
    attempt by a brand name drug company to have the therapeutic equivalence
    rating of a Parent Subsidiary product withheld or altered;

        (v) none of Parent, the Parent Subsidiaries or to Parent's knowledge,
    any of their respective officers, employees or agents (during the term of
    such person's employment by Parent or a Parent Subsidiary or while acting as
    an agent of Parent or a Parent Subsidiary) has made any untrue statement of
    a material fact or fraudulent statement to the FDA or any similar
    governmental agency, failed to disclose a material fact required to be
    disclosed to the FDA or similar governmental agency, or committed an act,
    made a statement or failed to make a statement that could reasonably be
    expected to provide a basis for the FDA or similar governmental agency to
    invoke its policy respecting "Fraud, Untrue Statements of Material Facts,
    Bribery, and Illegal Gratuities" or similar governmental policy, rule,
    regulation or law;

        (vi) neither Parent nor any of the Parent Subsidiaries has received any
    written notice that the FDA or any similar governmental agency has
    commenced, or threatened to initiate, any action to withdraw its approval or
    request the recall of any product of Parent or any of the Parent
    Subsidiaries, or commenced, or overtly threatened to initiate, any action to
    enjoin production at any facility of Parent or any of the Parent
    Subsidiaries.

       (vii) as to each article of drug, device, cosmetic or vitamin
    manufactured and/or distributed by Parent or any of the Parent Subsidiaries,
    such article is not adulterated or misbranded within the meaning of the FDCA
    or any similar governmental act or Law of any jurisdiction; and

      (viii) none of Parent, the Parent Subsidiaries or, to Parent's knowledge,
    any of their respective officers, employees or agents (during the term of
    such person's employment by Parent or a Parent Subsidiary or while acting as
    an agent of the Company or a Subsidiary), subsidiaries or affiliates has
    been convicted of any crime or engaged in any conduct for which debarment or
    similar punishment is mandated or permitted by any applicable law.

                                      A-25
<PAGE>
    (d) As to each product subject to FDA's jurisdiction under the FDCA and the
jurisdiction of the Drug Enforcement Agency under the CSA which is manufactured,
tested, distributed, held, and/or marketed by Parent, such product is being
manufactured, held and distributed in compliance with all applicable
requirements under the FDCA and the CSA including, but not limited to, those
relating to investigational use, premarket clearance, good manufacturing
practices, labeling, advertising, record keeping, filing of reports, and
security.

    (e) Parent will promptly provide the Company with copies of any document
that is issued, prepared, or otherwise becomes available from the date of this
Agreement until the Effective Time which bears on the regulatory status under
the FDCA or the CSA of Parent or any product of Parent, including, but not
limited to, any deficiency letter, warning letter, non-approvable letter/order,
and withdrawal letter/order, except for documents reflecting such matters which,
individually and in the aggregate, would not have a Material Adverse Effect on
Parent.

    SECTION 5.13.  EMPLOYEE BENEFIT PLANS.

    (a) All bonus, profit sharing, thrift, compensation, stock option,
restricted stock, stock purchase, pension, retirement, savings, welfare,
deferred compensation, employment, termination, severance, incentive, or other
employee benefit plans, programs and agreements providing benefits to any
employee, former employee, director or former director of Parent or any of the
Parent Subsidiaries sponsored or maintained by or on behalf of Parent or any of
the Parent Subsidiaries or to which Parent or any of the Parent Subsidiaries
contributes or is obligated to contribute or otherwise may have liability
(collectively, the "Parent Plans") are in compliance, in all material respects
with all laws and regulations applicable to the Parent Plans.

    (b) All contributions required to be made to any Parent Plan by applicable
law or regulation or by any plan document or other contractual undertaking, and
all premiums due or payable with respect to insurance policies funding any
Parent Plan, for any period through the date hereof have been timely made or
paid in full or, to the extent not required to be made or paid on or before the
date hereof, have been fully reflected in the financial statements of Parent
included in the Parent SEC Reports to the extent required under Canadian GAAP.

    SECTION 5.14  ENVIRONMENTAL MATTERS.  Except as would not, individually or
in the aggregate, have a Material Adverse Effect on Parent, (i) to Parent's
knowledge no Hazardous Materials (as defined below) are present at, on or under
any real property currently or, to Parent's knowledge, formerly owned, leased or
operated by Parent or any Parent Subsidiary to an extent or in a manner or
condition now requiring investigation, response, corrective action or other
action by Parent or for which Parent or any Parent Subsidiary is financially
responsible, or that would be reasonably likely to result in liability of, or
costs to, Parent or any of the Parent Subsidiaries, in each case under any
Environmental Law (as defined below), (ii) there is currently no civil, criminal
or administrative action, suit, demand, hearing, proceeding, notice of
violation, investigation, notice or demand letter, or request for information
pending or to the knowledge of Parent, threatened, under any Environmental Law
against Parent or any of the Parent Subsidiaries, (iii) Parent and the Parent
Subsidiaries have not received any written claims or notices alleging liability
under any Environmental Law currently pending, and Parent has no knowledge of
any circumstances that would reasonably be expected to result in such claims or
notices, (iv) Parent and each of the Parent Subsidiaries are currently in
compliance, and within the period of applicable statutes of limitation have
complied, with all, and have no liability under any, applicable Environmental
Laws, (v) no property or facility currently or, to Parent's knowledge, formerly
owned, leased or operated by Parent or any of the Parent Subsidiaries or any of
their respective predecessors-in-interest, or, to Parent's knowledge, at which
Hazardous Materials have been manufactured, handled, tested, formulated,
prepared, encapsulated, packaged, bottled or stored for Parent or any of the
Parent Subsidiaries, or Hazardous Materials of Parent or any of the Parent
Subsidiaries have been stored, treated or disposed of, is listed or proposed for
listing on the National

                                      A-26
<PAGE>
Priorities List or the Comprehensive Environmental Response, Compensation and
Liability Information System, both promulgated under the Comprehensive
Environmental Response, Compensation and Liability Act of 1980, as amended, or
on any comparable list established under any Environmental Law, (vi) the
execution, delivery and performance of this Agreement and the consummation of
the transactions contemplated hereby will not affect the validity of any
Environmental Permits held by Parent or any of the Parent Subsidiaries, and will
not require any remediation under any Environmental Law, (vii) no friable
asbestos now requiring abatement is present in, on, or at any property, facility
or equipment of Parent or any of the Parent Subsidiaries, (viii) to Parent's
knowledge there are no past or present events, conditions, activities, or
practices, including, without limitation, the disposal, emission or release of
any Hazardous Materials, which would reasonably be expected to prevent Parent
and the Parent Subsidiaries' compliance with any Environmental Law, or which
would reasonably be expected to give rise to any liability of Parent or any of
the Parent Subsidiaries under any Environmental Law, (ix) no Lien has been
asserted or recorded, or to the knowledge of Parent and each of the Parent
Subsidiaries threatened, under any Environmental Law with respect to any assets,
facility, inventory, or property currently owned, leased or operated by Parent
or any of the Parent Subsidiaries, (x) neither Parent nor any of the Parent
Subsidiaries has received a written claim pursuant to a contract or agreement
assuming any liabilities or obligations arising under any Environmental Law
including, without limitation, any such liabilities or obligations with respect
to formerly owned, leased or operated real property or facilities, or former
divisions or subsidiaries, (xi) neither Parent nor any of the Parent
Subsidiaries has entered into or agreed to any judgment, decree or order by any
judicial or administrative tribunal or agency and neither Parent nor any of the
Parent Subsidiaries is subject to any judgment, decree order or agreement, in
each case relating to compliance with any Environmental Law or requiring Parent
or any of the Parent Subsidiaries to conduct any investigation, response,
corrective or other action under any Environmental Law, and (xii) there are no
underground storage tanks or related piping, or impoundments, at any real
property owned, operated or leased by Parent or any of the Parent Subsidiaries,
and any former such tanks, piping, or impoundments, on any such property which
have been removed or closed, have been removed or closed in accordance with
applicable Environmental Laws.

    Parent has made available to the Company all records and files, including,
but not limited to, all assessments, reports, studies, audits, analyses, tests
and data in the possession, custody or control of Parent or any Parent
Subsidiary relating to the existence of Hazardous Materials at facilities or
properties currently or formerly owned, operated, leased or used by Parent or
any of the Parent Subsidiaries or concerning compliance by Parent and any Parent
Subsidiaries with, or liability of any of them under, any Environmental Law.

    SECTION 5.15.  YEAR 2000.  Either (i) all Parent Information Systems and
Equipment (as defined below) are in all material respects Year 2000 Compliant or
(ii) any reprogramming, remediation, or any other corrective action, including
the internal testing of all such Parent Information Systems and Equipment, will
be completed in all material respects by September 30, 1999. Further, to the
extent that such reprogramming/remediation and testing action is required, the
cost thereof, as well as the cost of the reasonably foreseeable consequence of
failure to become Year 2000 Compliant, to Parent and the Parent Subsidiaries
(including, without limitation, reprogramming errors and the failure of other
systems or equipment) will not result in a Material Adverse Effect on Parent.

    "Parent Information Systems and Equipment" means all material computer
hardware, firmware and software, as well as other information processing
systems, or any equipment containing embedded microchips, whether directly
owned, licensed, leased, operated or otherwise controlled by Parent or any of
the Parent Subsidiaries, including through third-party service providers, and
which, in whole or in part, are integral to, Parent's or any of the Parent
Subsidiaries' conduct of their business.

                                      A-27
<PAGE>
                                   ARTICLE VI

                                   COVENANTS

    SECTION 6.01.  CONDUCT OF BUSINESS OF THE COMPANY.  Except as required by
this Agreement or with the prior written consent of Parent, during the period
from the date of this Agreement to the Effective Time, the Company will, and
will cause each of the Subsidiaries to, conduct its operations only in the
ordinary course of business consistent with past practice and will use its
reasonable best efforts, and will cause each of the Subsidiaries to use its
reasonable best efforts, to preserve intact the business organization of the
Company and each of the Subsidiaries, to keep available the services of its and
their present officers and employees, and to preserve the good will of those
having business relationships with it. Without limiting the generality of the
foregoing, and except as otherwise required by this Agreement or as set forth in
Section 6.01 of the Company Disclosure Statement, the Company will not, and will
not permit any of the Subsidiaries to, prior to the Effective Time, without the
prior written consent of Parent, which consent, prior to the consummation of the
Offer, shall not be unreasonably withheld:

        (a) adopt any amendment to its certificate of incorporation or by laws
    or comparable organizational documents;

        (b) except for issuances of capital stock of the Subsidiaries to the
    Company or a wholly-owned Subsidiary, issue, reissue or sell, or authorize
    the issuance, reissuance or sale of (i) additional shares of capital stock
    of any class, or securities convertible into capital stock of any class, or
    any rights, warrants or options (including under any existing options plans)
    to acquire any convertible securities or capital stock, other than the
    issuance of Common Shares pursuant to the exercise of Options outstanding on
    the date hereof pursuant to the terms thereof as in effect on the date
    hereof as contemplated by Section 2.09, or (ii) any other securities in
    respect of, in lieu of, or in substitution for, Shares outstanding on the
    date hereof;

        (c) declare, set aside or pay any dividend or other distribution
    (whether in cash, capital stock, rights thereto or other assets, securities
    or property or any combination thereof) in respect of any class or series of
    its capital stock other than between any of the Company and any of the
    wholly-owned Subsidiaries;

        (d) split, combine, subdivide, reclassify or redeem, purchase or
    otherwise acquire, or propose to redeem or purchase or otherwise acquire,
    any shares of its capital stock, or any of its other securities;

        (e) except for (A) increases in salary, wages and benefits of
    non-executive officers or employees of the Company or the Subsidiaries in
    the ordinary course of business consistent with past practice, (B) increases
    in salary, wages and benefits granted to officers and employees of the
    Company or the Subsidiaries in conjunction with new hires, promotions or
    other changes in job status in the ordinary course of business consistent
    with past practice, or (C) increases in salary, wages and benefits to
    employees of the Company pursuant to collective bargaining agreements
    entered into in the ordinary course of business consistent with past
    practice, (i) increase the compensation or fringe benefits payable or to
    become payable to its directors, officers or employees (whether from the
    Company or any of the Subsidiaries), or (ii) pay any benefit not required by
    any existing plan or arrangement, or (iii) grant any severance or
    termination pay (except pursuant to existing agreements, plans or policies
    and as required by such agreements, plans or polices), or (iv) enter into
    any employment or severance agreement with, any director, officer or other
    employee of the Company or any of the Subsidiaries (including independent
    contractors and consultants), or (v) establish, adopt, enter into, or amend
    any collective bargaining, bonus, profit sharing, thrift, compensation,
    stock option, restricted stock, pension, retirement, savings, welfare,
    deferred compensation, employment, termination, severance or other employee

                                      A-28
<PAGE>
    benefit plan, agreement, trust, fund, policy or arrangement for the benefit
    or welfare of any directors, officers or current or former employees, except
    in each case to the extent required by applicable law or regulation;

        (f) acquire, sell, lease, mortgage, encumber or dispose of any assets
    (other than inventory) or securities with a value, individually or in the
    aggregate, in excess of $10.0 million, in the case of rolling stock, or $1.0
    million in the case of other assets or securities, or enter into any
    commitment to do any of the foregoing or enter into any material commitment
    or transaction outside the ordinary course of business consistent with past
    practice other than transactions between a wholly-owned Subsidiary and the
    Company or another wholly-owned Subsidiary of the Company;

        (g) (i) incur, assume or pre-pay any long-term debt or incur or assume
    any short-term debt, except that the Company and the Subsidiaries may incur,
    assume or pre-pay debt in the ordinary course of business consistent with
    past practice under existing lines of credit, (ii) assume, guarantee,
    endorse or otherwise become liable or responsible (whether directly,
    contingently or otherwise) for the obligations of any other person except in
    the ordinary course of business consistent with past practice, (iii) make
    any loans, advances or capital contributions to, or investments in, any
    other person except in the ordinary course of business consistent with past
    practice and except for loans, advances, capital contributions or
    investments between any wholly-owned Subsidiary and the Company or another
    wholly-owned Subsidiary or (iv) make any offer to purchase the Convertible
    Debentures;

        (h) modify, amend or terminate any of the Material Contracts or waive,
    release or assign any rights or claims thereunder, except in the ordinary
    course of business and consistent with past practice;

        (i) change any of the accounting methods used by it unless required by
    GAAP, make any material Tax election or change or revoke any material Tax
    election already made, adopt, request or consent to any new material Tax
    accounting method, change any material Tax accounting method unless required
    by applicable law, enter into any material closing agreement, settle any
    material Tax claim or assessment or consent to any material Tax claim or
    assessment or any waiver of the statute of limitations for any such claim or
    assessment;

        (j) adopt a plan of complete or partial liquidation, dissolution,
    merger, consolidation, restructuring, recapitalization or other
    reorganization of the Company or any of the Subsidiaries (other than the
    Merger);

        (k) pay, discharge or satisfy, or fail to pay, discharge or satisfy, any
    claim, liability or obligation (contingent or otherwise), other than in the
    ordinary course of business and consistent with past practice;

        (l) take, or agree to commit to take, any action that would result in
    any of the conditions to the Merger set forth in Article VII or any of the
    conditions to the Offer not being satisfied, or would make any
    representation or warranty of the Company contained herein inaccurate in any
    material respect at the Effective Time, or that would materially impair the
    ability of the Company to consummate the Merger in accordance with the terms
    thereof or materially delay such consummation; or

        (m) except in the ordinary course of business or as otherwise expressly
    contemplated hereby, grant or acquire any material licenses to use any
    Intellectual Property Rights or unpatented inventions; PROVIDED that the
    Company and its Subsidiaries shall not grant any material licenses to use
    any material Intellectual Property Rights or unpatented inventions without
    the prior written consent of Parent, which consent shall not be unreasonably
    withheld;

                                      A-29
<PAGE>
        (n) enter into an agreement, contract, commitment or arrangement to do
    any of the foregoing, or to authorize, recommend, propose or announce an
    intention to do any of the foregoing.

    SECTION 6.02.  ACCESS TO INFORMATION.  (a) From the date hereof until the
Effective Time, the Company will, and will cause the Subsidiaries, and each of
its and their respective officers, directors, employees, counsel, advisors and
representatives (collectively, the "Company Representatives") to, provide
Parent, the Purchaser and any person providing or proposing to provide financing
to Parent or Purchaser ("Financing Sources") and their respective officers,
employees, counsel, advisors, representatives (collectively, the "Parent
Representatives") reasonable access, during normal business hours and upon
reasonable notice, to the officers and employees, offices and other facilities
and to the books and records of the Company and the Subsidiaries, as will permit
Parent and the Purchaser to make inspections of such as either of them may
reasonably require and will cause the Company Representatives and the Company's
Subsidiaries to furnish Parent, the Purchaser and the Parent Representatives to
the extent available with such other information with respect to the business,
operations and prospects of the Company and the Subsidiaries as Parent and the
Purchaser may from time to time reasonably request. Unless otherwise required by
law, Parent and the Purchaser will, and will cause the Parent Representatives
to, hold any such information in confidence until such time as such information
otherwise becomes publicly available through no wrongful act of Parent, the
Purchaser or the Parent Representatives. The Company agrees to make reasonably
available its executive officers for presentations to any Financing Sources. In
the event of termination of this Agreement for any reason, Parent and the
Purchaser will, and will cause the Parent Representatives to, return to the
Company all copies of written information furnished by the Company or any of the
Company Representatives to Parent or the Purchaser or the Parent Representatives
and destroy all memoranda, notes and other writings prepared by Parent, the
Purchaser or the Parent Representatives based upon or including the information
furnished by the Company or any of the Company Representatives to Parent or the
Purchaser or the Parent Representatives (and Parent will certify to the Company
that such destruction has occurred).

    (b) From the date hereof until the Effective Time, Parent will, and will
cause its subsidiaries, and each of the Parent Representatives to, provide the
Company and any Company Representatives reasonable access, during normal
business hours and upon reasonable notice, to the officers and employees,
offices and other facilities and to the books and records of Parent and its
Subsidiaries, as will permit the Company to make inspections of such as it may
reasonably require and will cause the Parent Representatives and its
subsidiaries to furnish the Company and the Company Representatives to the
extent available with such other information with respect to the business,
operations and prospects of the Parent and its subsidiaries as the Company may
from time to time reasonably request. Unless otherwise required by law, the
Company will, and will cause the Company Representatives to, hold any such
information in confidence until such time as such information otherwise becomes
publicly available through no wrongful act of the Company or the Company
Representatives. In the event of termination of this Agreement for any reason,
The Company will, and will cause the Company Representatives to, return to
Parent all copies of written information furnished by Parent or any of the
Parent Representatives to the Company or the Company Representatives and destroy
all memoranda, notes and other writings prepared by the Company or the Company
Representatives based upon or including the information furnished by Parent or
any of the Parent Representatives to the Company or the Company Representatives
(and the Company will certify to Parent that such destruction has occurred).

    (c) The Company will assist Parent in securing access to Merck in order to
pursue business opportunities.

    SECTION 6.03.  REASONABLE BEST EFFORTS.  (a) Subject to the terms and
conditions herein provided and to applicable legal requirements, each of the
parties hereto agrees to use its reasonable best efforts

                                      A-30
<PAGE>
to take, or cause to be taken, all action, and to do, or cause to be done, and
to assist and cooperate with the other parties hereto in doing, as promptly as
practicable, all things necessary, proper or advisable under applicable laws and
regulations to ensure that the conditions set forth in Annex I and Article VII
are satisfied and to consummate and make effective the transactions contemplated
by the Offer and this Agreement, including, without limitation, (i) the filing
of Notification and Report Forms under the HSR Act with the Federal Trade
Commission (the "FTC") and the Antitrust Division of the Department of Justice
(the "Antitrust Division") and using all commercially reasonable efforts to
respond as promptly as practicable to any inquiries received from the FTC or the
Antitrust Division for additional information or documentation, (ii) the
obtaining of all necessary consents, approvals or waivers and (iii) the lifting
of any legal bar to the Merger. Parent shall cause Purchaser to perform all of
its obligations under this Agreement and shall not knowingly take any action
that would cause the Company to fail to perform its obligations hereunder. The
Company shall not knowingly take any action that would cause either Parent or
Purchaser to fail to perform its obligations hereunder.

    (b) The Company shall prepare and file with the SEC as soon as is reasonably
practicable after the date hereof the Company Proxy Statement and Parent shall
file the Registration Statement in which the Company Proxy Statement shall be
included. Parent and the Company shall use all commercially reasonable efforts
to have the Registration Statement declared effective by the SEC and the Company
Proxy Statement cleared by the staff of the SEC as promptly as practicable.
Parent shall take any action required to be taken under applicable state blue
sky or securities laws in connection with the Parent Common Stock to be issued
as Closing Consideration. Parent and the Company shall promptly furnish to each
other all information, and take such other actions (including, without
limitation, using all commercially reasonable efforts to provide any required
consents of their respective independent accountants or auditors, as the case
may be), as may reasonably be requested in connection with any action by any of
them in connection with the preceding sentences of this Section 6.03(b).

    (c) In addition, if at any time prior to the Effective Time any event or
circumstance relating to either the Company or Parent or the Purchaser or any of
their respective subsidiaries, should be discovered by the Company or Parent, as
the case may be, and which should be set forth in an amendment to the Offer
Documents, Schedule 14D-9, Company Proxy Statement or the Registration
Statement, the discovering party will promptly inform the other party of such
event or circumstance. If at any time after the Effective Time any further
action is necessary or desirable to carry out the purposes of this Agreement,
including the execution of additional instruments, the proper officers and
directors of each party to this Agreement shall take all such necessary action.

    SECTION 6.04.  PUBLIC ANNOUNCEMENTS.  (a) So long as this Agreement is in
effect, Parent, the Purchaser and the Company agree to use reasonable efforts to
consult with each other before issuing any press release or otherwise making any
public statement with respect to (i) the transactions contemplated by this
Agreement and (ii) the Company's second quarter earnings.

    (b) So long as this Agreement is in effect, the Company agrees to provide
Parent with notice and copies of any press release or any public statement at
least 24 hours prior to issuance; PROVIDED, that this provision shall not
prevent the Company from issuing a press release if the Company in good faith
determines that it must do so and makes reasonable attempts to so notify Parent.
Parent shall designate a single person with whom the Company should communicate
for purposes of this Section 6.04(b). The Company shall use its reasonable
efforts to accommodate any comments provided by Parent on a press release before
the end of such 24 hour period, but the Company shall maintain final editorial
control over any press releases. The 24 hour period shall commence at 8:00 a.m.
New York time on the next business day following the day notice was received if
such day was not a business day.

    SECTION 6.05.  INDEMNIFICATION.

    (a) Parent agrees that all rights to indemnification now existing in favor
of any director or officer of the Company as provided in the Company's Amended
and Restated Certificate of Incorporation or

                                      A-31
<PAGE>
by laws, in an agreement between any such person and the Company, or otherwise
in effect on the date hereof shall survive the Merger and shall continue in full
force and effect after the Effective Time. Parent agrees that all rights to
indemnification now existing in favor of any director or officer of the
Subsidiaries as provided in the certificate of incorporation or by laws or
similar organizational document, in an agreement between any such person and
such Subsidiary, or otherwise in effect on the date hereof shall survive the
Merger and shall continue in full force and effect after the Effective Time.
After the Effective Time, Parent also agrees to and to cause any successors to
indemnify all directors and officers of the Company or of any of the
Subsidiaries ("Indemnified Parties") to the fullest extent permitted by
applicable law with respect to all acts and omissions arising out of such
individuals' services as officers or directors of the Company or any of the
Subsidiaries or as trustees or fiduciaries of any plan for the benefit of
employees occurring at or prior to the Effective Time. Without limitation of the
foregoing, in the event that after the Effective Time any such Indemnified Party
is or becomes involved in any capacity in any action, proceeding or
investigation in connection with any matter, including, without limitation, the
transactions contemplated by this Agreement, occurring prior to, and including,
the Effective Time, Parent will pay, subject to applicable law, as incurred such
Indemnified Party's reasonable legal and other expenses of counsel selected by
the Indemnified Party and reasonably acceptable to Parent (including the cost of
any investigation and preparation) incurred in connection therewith; PROVIDED,
HOWEVER, that Parent shall not, in connection with any one such action or
proceeding or separate but substantially similar actions or proceedings arising
out of the same general allegations be liable for fees and expenses of more than
one separate firm of attorneys (in addition to any local counsel) at any time
for all Indemnified Parties. Parent shall be entitled to participate in the
defense of any such action or proceeding and counsel selected by the Indemnified
Party shall, to the extent consistent with their professional responsibilities,
cooperate with Parent and any counsel designated by Parent. Parent shall,
subject to applicable law, pay all reasonable expenses, including attorneys'
fees, that may be incurred by any Indemnified Party in enforcing the indemnity
and other obligations provided for in this Section 6.05.

    (b) Parent agrees that the Company and, from and after the Effective Time,
the Surviving Corporation shall cause to be maintained in effect for not less
than six years from the Effective Time the current policies of the directors'
and officers' liability insurance maintained by the Company; PROVIDED that the
Surviving Corporation may substitute therefor policies of at least the same
coverage containing terms and conditions which are no less advantageous to any
Indemnified Party and provided that such substitution shall not result in any
gaps or lapses in coverage with respect to matters occurring at or prior to the
Effective Time; and PROVIDED, FURTHER, that the Surviving Corporation shall not
be required to pay an annual premium in excess of 200% of the last annual
premium paid by the Company prior to the date hereof and if the Surviving
Corporation is unable to obtain the insurance required by this Section 6.05(b)
it shall obtain as much comparable insurance as possible for an annual premium
equal to such maximum amount.

    (c) The covenants in this Section 6.05 are intended for the benefit of and
shall be enforceable by each of the Indemnified Parties and their respective
heirs and legal representatives. The indemnification provided for herein shall
not be deemed exclusive of any other rights to which an Indemnified Party is
entitled, whether pursuant to law, contract or otherwise.

    (d) In the event that the Surviving Corporation or Parent or any of their
respective successors or assigns (i) consolidates with or merges into any other
person and shall not be the continuing or surviving corporation or entity of
such consolidation or merger or (ii) transfers or conveys all or substantially
all of its properties and assets to any person, then, and in each such case, to
the extent necessary to effectuate the purposes of this Section 6.05, proper
provision shall be made so that the successors and assigns of the Surviving
Corporation or Parent shall succeed to the obligations set forth in this Section
6.05.

                                      A-32
<PAGE>
    (e)  OPERATIONS OF PURCHASER.  Purchaser has been formed solely for the
purpose of engaging in the transactions contemplated hereby and prior to the
Effective Time will have engaged in no other business activities and will have
incurred no liabilities or obligations other than as contemplated herein.

    SECTION 6.06.  NO SOLICITATION.

    (a) The Company represents and warrants to, and covenants and agrees with,
Parent and the Purchaser that neither the Company nor any of the Subsidiaries
has any agreement, arrangement or understanding regarding an Acquisition
Transaction (as hereinafter defined) with any party expressing an interest in an
Acquisition Transaction that, directly or indirectly, would be violated, or
require any payments, by reason of the execution, delivery and/or consummation
of this Agreement. The Company shall, and shall cause the Subsidiaries and its
and their officers, directors, employees, investment bankers, attorneys and
other agents and representatives to, immediately cease any existing discussions
or negotiations with any person other than Parent or the Purchaser (a "Third
Party") heretofore conducted with respect to any Acquisition Transaction. The
Company shall not, and the Company shall cause the Subsidiaries and its and
their respective officers, directors, employees, investment bankers, attorneys
and other agents and representatives not to, directly or indirectly, (x)
solicit, initiate, continue, facilitate or encourage (including by way of
furnishing or disclosing non-public information) any inquiries, proposals or
offers from any Third Party with respect to, or that could reasonably be
expected to lead to, (i) any acquisition or purchase of 25% or more of the
assets or business of the Company and its subsidiaries, taken as a whole, or a
25% or more voting equity interest in (including by way of a tender offer), or
(ii) any amalgamation, merger, consolidation or business combination with, or
any recapitalization or restructuring, or any similar transaction involving, the
Company (the foregoing clause (i) and (ii) being referred to collectively as an
"Acquisition Transaction"), or (y) negotiate, explore or discuss in any way with
any Third Party with respect to any Acquisition Transaction or enter into,
approve or recommend any agreement, arrangement or understanding requiring the
Company to abandon, terminate or fail to consummate the Offer and/or the Merger
or any other transaction contemplated hereby. Notwithstanding anything to the
contrary in the foregoing, the Company may, prior to the Special Meeting, in
response to an unsolicited written proposal with respect to an Acquisition
Transaction involving the acquisition of all or substantially all of the Shares
(or all or substantially all of the assets of the Company and the Subsidiaries)
from a Third Party (i) furnish or disclose non-public information to such Third
Party, (ii) negotiate, discuss or otherwise communicate with such Third Party
and (iii) in the case of an unsolicited tender offer for Shares, withdraw or
modify (or resolve to withdraw or modify) in a manner adverse to Parent the
approval or recommendation of this Agreement and the transactions contemplated
hereby or recommend (or resolve to recommend) such Acquisition Transaction with
a Third Party to Shareholders (including disclosing to the Company's
stockholders such position contemplated by Rules 14d-9 and 14e-2 promulgated
under the Exchange Act), in each case only if the Board of Directors of the
Company determines reasonably and in good faith: (1) after consultation with and
based (as to legal matters) upon advice of outside counsel that it is required
to do so in the exercise of its fiduciary obligations, (2) (after consultation
with Warburg Dillon Read LLC) that such proposed Acquisition Transaction or
tender offer is more favorable to the Shareholders from a financial point of
view than the transaction contemplated hereby (including any adjustment to the
terms and conditions proposed by Parent and the Purchaser in response to such
proposed Acquisition Transaction (a proposal with respect to such Acquisition
Transaction meeting the requirements of clauses (1) and (2) is referred to
herein as a "Superior Proposal"). Prior to furnishing or disclosing any
non-public information to such Third Party, the Company shall receive from such
Third Party an executed confidentiality agreement with terms no less favorable
in the aggregate to the Company than those contained in the Confidentiality
Agreement between the Company and Parent (the "Confidentiality Agreement"), but
which confidentiality agreement shall not provide for any exclusive right to
negotiate with the Company or any payments by the Company. The Company shall
give Parent one day's written notice prior to entering into any such
Confidentiality Agreement. The Company shall provide to Parent copies of all
such non-public

                                      A-33
<PAGE>
information delivered to such Third Party concurrently with such delivery.
Notwithstanding the foregoing, the Board of Directors of the Company shall not,
and the Company shall not, withdraw or modify (or resolve to withdraw or modify)
in a manner adverse to Parent the approval or recommendation of this Agreement
or any of the transactions contemplated hereby, or recommend (or resolve to
recommend) an Acquisition Transaction with a Third Party to the Shareholders or
enter into a definitive agreement with respect to a Superior Proposal unless (x)
the Company has given Parent three business days' notice of the intention of the
Board of Directors to withdraw or modify (or resolve to withdraw or modify) in a
manner adverse to Parent the approval or recommendation of this Agreement or any
of the transactions contemplated hereby, or recommend (or resolve to recommend)
an Acquisition Transaction with a Third Party to the Shareholders or the
intention of the Company to enter into such definitive agreement, as the case
may be, (y) if Parent makes a counter-proposal within such three business day
period, the Board of Directors of the Company shall have determined, in light of
any such counter-proposal, that the Third Party Acquisition Transaction proposal
is still a Superior Proposal, and (z) the Company concurrently terminates this
Agreement in accordance with the terms hereof and pays any Termination Fee (as
defined) required under Section 8.03(c).

    (b) The Company shall promptly (but in any event within one day of the
Company becoming aware of same) advise Parent of the receipt by the Company, any
of the Subsidiaries or any of its or their bankers, attorneys or other agents or
representatives of any inquiries or proposals relating to an Acquisition
Transaction and any actions taken pursuant to Section 6.06(a). The Company shall
promptly (but in any event within one day of the Company becoming aware of same)
provide Parent with a copy of any such inquiry or proposal in writing and a
written statement with respect to any such inquiries or proposals not in
writing, which statement shall include the identity of the parties making such
inquiries or proposal and all the material terms thereof. The Company shall,
from time to time, promptly (but in any event within one day of the Company
becoming aware of same) inform Parent of the status and content of and
developments with respect to any discussions regarding any Acquisition
Transaction with a Third Party. The Company shall, from time to time, promptly
(but in any event within one day of the Company becoming aware of same) inform
Parent in writing of (i) the calling of meetings of the Board of Directors of
the Company to take action with respect to such Acquisition Transaction, (ii)
the execution of any letters of intent, memoranda of understanding or similar
non-binding agreements with respect to such Acquisition Transaction, (iii) the
waiver of any standstill agreement to which the Company is or becomes a party,
(iv) the determination by the Board of Directors of the Company to recommend to
the Shareholders that they approve or accept a Superior Proposal or withdraw or
modify in a manner adverse to the Parent its approval or recommendation of this
Agreement or the transactions contemplated hereby, (v) the determination by the
Company to publicly disclose receipt of a Superior Proposal and (vi) the waiver
by the Company of any confidentiality agreement with a person proposing a
Superior Proposal.

    SECTION 6.07.  NOTIFICATION OF CERTAIN MATTERS.  Parent and the Company
shall promptly notify each other of (a) the occurrence or non-occurrence of any
fact or event which would (i) cause any representation or warranty contained in
this Agreement to be untrue or inaccurate in any material respect at any time
from the date hereof to the Effective Time or (ii) cause any covenant, condition
or agreement hereunder not to be complied with or satisfied in all material
respects and (b) any failure of the Company or Parent, as the case may be, to
comply with or satisfy any covenant, condition or agreement to be complied with
or satisfied by it hereunder in any material respect; PROVIDED, HOWEVER, that no
such notification shall affect the representations or warranties of any party or
the conditions to the obligations of any party hereunder.

    SECTION 6.08.  STATE TAKEOVER LAWS.  The Company shall, upon the request of
the Purchaser, take all reasonable steps to assist in any challenge by the
Purchaser to the validity or applicability to the transactions contemplated by
this Agreement, including the Offer and the Merger, and the Stock Option
Agreement of any state takeover law. The Board of Directors of the Company shall
not amend,

                                      A-34
<PAGE>
modify or rescind the approval of any purchase of Shares in the Offer or under
the Stock Option Agreement for purposes of Section 203 of the GCL. The Company
will use its reasonable best efforts to ensure that the provisions of any
applicable or alleged or asserted to be applicable state takeover law will not
be applicable to the Offer, the Merger or any of the other transactions
contemplated by this Agreement.

    SECTION 6.09.  ENVIRONMENTAL APPROVALS.  The Company shall obtain all
approvals, consents and authorizations and make all filings required under and
pursuant to any Environmental Law required for the execution, delivery and
performance of this Agreement and the consummation of the transactions
contemplated hereby.

    SECTION 6.10.  STOCK EXCHANGE LISTINGS.  Parent shall use all commercially
reasonable efforts to list on the NYSE and the Toronto Stock Exchange, upon
official notice of issuance, the Parent Common Stock to be issued in connection
with the Merger.

    SECTION 6.11  AFFILIATES.  The Company shall advise Parent in writing of any
person who, to the Company's knowledge, becomes an Affiliate after the date
hereof and prior to the Effective Time and shall use all commercially reasonable
efforts to cause each such person to deliver to Parent, no later than the date
such person becomes an Affiliate, a written agreement substantially in the form
of Annex III hereto. Parent shall use all commercially reasonable efforts to
satisfy for two years after the Effective Time the requirements of Rule 144(c)
under the Securities Act.

    SECTION 6.12.  RESIGNATION OF DIRECTORS; CERTAIN AGREEMENTS.  (a) Prior to
the Effective Time, the Company shall use its reasonable best efforts to deliver
to Parent at no cost the resignations of such directors of its Subsidiaries as
Parent shall specify, effective at the Effective Time. In connection with any
such resignation, the directors shall simultaneously reconvey their directors'
qualifying shares, if any, to the applicable Subsidiary or such other persons as
Parent shall specify at no additional expense to Parent, Purchaser or such
Subsidiary other than customary expenses directly relating to the transfer and
issuance of directors' qualifying shares, if any.

    (b) The Company will (i) promptly give notice to Paul Kennedy that its
engagement of him as financial advisor pursuant to a letter agreement dated June
24, 1999 shall terminate on the earliest possible date pursuant to such
agreement, (ii) will not consent to the disclosure of non-public information by
him to a third party and (iii) will request that he cease all activities under
such agreement.

                                  ARTICLE VII
                    CONDITIONS TO CONSUMMATION OF THE MERGER

    SECTION 7.01.  CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE
MERGER.  The respective obligations of each party to effect the Merger shall be
subject to the fulfillment at or prior to the Closing (as defined in Section
9.01) of each of the following conditions:

        (a) SHAREHOLDER APPROVAL. The Shareholders shall have duly approved and
    adopted this Agreement and the transactions contemplated by this Agreement,
    to the extent required under applicable law.

        (b) INJUNCTIONS; ILLEGALITY. The consummation of the Merger shall not be
    restrained, enjoined or prohibited by any order, judgment, decree,
    injunction or ruling of a court of competent jurisdiction or any
    Governmental Entity and there shall not have been any statute, rule or
    regulation enacted, promulgated or deemed applicable to the Merger by any
    Governmental Entity which prevents the consummation of the Merger.

                                      A-35
<PAGE>
    SECTION 7.02.  CONDITIONS TO THE OBLIGATIONS OF PARENT AND PURCHASER.  The
obligation of Parent and Purchaser to effect the Merger and to perform their
other obligations to be performed at or subsequent to the Closing shall be
subject to the fulfillment at or prior to the Closing of the following
additional conditions, any one or more of which may be waived by Parent or
Purchaser:

        (a) PERFORMANCE. The Company shall have performed and complied in all
    material respects with all agreements, obligations and conditions required
    by this Agreement to be performed or complied with by it on or prior to the
    Closing Date, except for those failures to so perform or comply which are
    not willful and those failures, whether or not willful, that, individually
    or in the aggregate, would not either impair the Company's ability to
    consummate the Merger and the other transactions contemplated hereby or have
    a Material Adverse Effect on the Company.

        (b) PURCHASE OF SHARES. The Purchaser shall have accepted for payment
    and paid for Shares pursuant to the Offer in accordance with the terms
    hereof, unless Purchaser's failure to accept for payment and pay for Shares
    results from Purchaser's breach of any provision of the Agreement.

    SECTION 7.03.  CONDITIONS TO THE OBLIGATIONS OF THE COMPANY.  The
obligations of the Company under this Agreement to effect the Merger shall be
subject to the fulfillment on or before the Closing Date of each of the
following additional conditions, any one or more of which may be waived by the
Company:

        (a) PERFORMANCE. Parent and Purchaser shall have performed and complied
    in all material respects with all agreements, obligations and conditions
    required by this Agreement to be performed or complied with by them on or
    prior to the Closing Date except for those failures to so perform or comply
    that, individually or in the aggregate, would not either impair the ability
    of Parent or Purchaser to consummate the Merger and the other transactions
    contemplated hereby or have a Material Adverse Effect on Parent.

        (b) PURCHASE OF SHARES. The Purchaser shall have accepted for payment
    and paid for Shares pursuant to the Offer in accordance with the terms
    hereof, unless Purchaser's failure to accept for payment and pay for Shares
    results from the Company's breach of any provision of the Agreement.

                                  ARTICLE VIII
                          TERMINATION AND ABANDONMENT

    SECTION 8.01.  TERMINATION.  This Agreement may be terminated and the Merger
may be abandoned any time prior to the Effective Time, whether before or after
approval by the stockholders of the Company:

        (a) by the written agreement of Parent and the Company duly authorized
    by their respective Boards of Directors;

        (b) by either Parent or the Company if, without fault of such
    terminating party, the Merger shall not have been consummated on or before
    March 31, 2000, which date may be extended by mutual consent of the parties
    hereto;

        (c) by either Parent or the Company, if any court of competent
    jurisdiction or other governmental body shall have issued an order (other
    than a temporary restraining order), decree or ruling or taken any other
    action restraining, enjoining or otherwise prohibiting the Merger, and such
    order, decree, ruling or other action shall have become final and
    nonappealable; or

        (d) by either Parent or the Company, if the approval of a majority of
    the outstanding shares of Company Common Stock cast at the Special Meeting
    or any adjournment thereof is not obtained.

                                      A-36
<PAGE>
    SECTION 8.02.  TERMINATION BY PARENT.  This Agreement may be terminated and
the Merger may be abandoned by action of the Board of Directors of Parent, at
any time prior to the Effective Time, before or after the approval by the
stockholders of the Company, if:

        (a) the Company shall have willfully failed to perform in all material
    respects its covenants or agreements contained in this Agreement which would
    have a Material Adverse Effect on the Company or materially adversely affect
    (or materially delay) the ability of Purchaser to consummate the Offer or of
    Parent, Purchaser or the Company to consummate the Merger, and the Company
    has not cured such breach within ten business days after notice by Parent or
    Purchaser thereof;

        (b) there exists a breach or breaches of any representation or warranty
    of the Company contained in this Agreement such that the Offer condition set
    forth in clause (b)(i) of Annex I would not be satisfied; PROVIDED, HOWEVER,
    that if such breach or breaches are capable of being cured prior to the
    consummation of the Offer (as required to be extended pursuant to Section
    1.01(a)), only if such breaches shall not have been cured within 10 days of
    delivery to the Company of written notice of such breach or breaches;

        (c) the Board of Directors of the Company (i) fails to recommend the
    approval of this Agreement and the Merger to the Company's stockholders,
    (ii) withdraws or amends or modifies in a manner adverse to Parent its
    recommendation or approval in respect of this Agreement or the Merger (it
    being understood that taking no position on a tender offer for the Company
    as contemplated by Rules 14d-9 and 14e-2 shall not be deemed a withdrawal,
    amendment or modification) or (iii) makes any recommendation with respect to
    an Acquisition Transaction, or the Board of Directors of the Company shall
    have resolved to take any of the foregoing actions referred to in this
    clause and publicly discloses such resolution; or

        (d) due to an occurrence or circumstance which would result in a failure
    to satisfy any of the conditions set forth in Annex I, Purchaser shall have
    (i) terminated the Offer in accordance with the provisions of Annex I, or
    (ii) failed to pay for Shares pursuant to the Offer within 120 days
    following the date hereof, unless such failure to pay for Shares is a result
    of the failure of Parent or Purchaser to perform any of its covenants and
    agreements contained in this Agreement.

    SECTION 8.03.  TERMINATION BY THE COMPANY.  This Agreement may be terminated
and the Merger may be abandoned at any time prior to the Effective Time, before
or after the approval by the stockholders of the Company, by action of the Board
of the Directors of the Company, if:

        (a) Parent or Purchaser shall have failed to perform in all material
    respects its covenants or agreements contained in this Agreement which would
    have a Material Adverse Effect on Parent or materially adversely affect (or
    materially delay) the ability of Purchaser to consummate the Offer or of
    Parent, Purchaser or the Company to consummate the Merger, and Parent or the
    Purchaser has not cured such breach within ten business days after notice by
    the Company thereof;

        (b) the representations and warranties of the Parent and Purchaser
    contained in this Agreement at the date hereof and as of the consummation of
    the Offer with the same effect as if made at and as of the consummation of
    the Offer (except as to any such representation or warranty which speaks as
    of a specific date) shall not be true and correct in any respect that is
    reasonably likely to have a Material Adverse Effect on Parent (or if such
    representations and warranties are qualified by reference to materiality or
    a Material Adverse Effect on Parent, shall not be true and correct);
    PROVIDED, HOWEVER, that if such breach or breaches are capable of being
    cured prior to the consummation of the Offer (as required to be extended
    pursuant to Section 1.01(a)), only if such breaches shall not be cured
    within 10 days of delivery to Parent of written notice of such breach or
    breaches;

                                      A-37
<PAGE>
        (c) if (A)(x) the Company proposes entering into a definitive agreement
    with respect to a Superior Proposal or (y) the Board of Directors of the
    Company recommends a Third Party Acquisition Transaction which is an
    unsolicited all cash tender offer for any and all Shares and which
    constitutes a Superior Proposal, (B) the Company gives Parent the three
    business days' notice as required pursuant to the last sentence of Section
    6.06(a), (C) if a counter-proposal was made by Parent within such three
    business day period, the Board of Directors of the Company has determined,
    in light of the counter-proposal, that the Third Party Acquisition
    Transaction (or proposal therefor) is still a Superior Proposal as required
    by the last sentence of Section 6.06(a) and (D) the Company has paid to
    Parent by wire transfer or immediately available funds to an account
    specified by Parent a fee of $5.5 million immediately prior to such
    termination; or

        (d) if (i) Purchaser fails to commence the Offer as provided in Section
    1.01, (ii) Purchaser fails to pay for Shares pursuant to the Offer within
    120 days following the date hereof, unless such failure to pay for Shares is
    the result of the failure of the Company to perform any of its covenants and
    agreements contained in this Agreement or (iii) Purchaser terminates the
    Offer in accordance with the provisions of Annex I.

    SECTION 8.04.  PROCEDURE FOR TERMINATION.  In the event of termination and
abandonment of the Merger by Parent or the Company pursuant to this Article
VIII, written notice thereof shall forthwith be given to the other.

    SECTION 8.05.  EFFECT OF TERMINATION AND ABANDONMENT.  (a) In the event of
termination of this Agreement and abandonment of the Merger pursuant to this
Article VIII, no party hereto (or any of its directors or officers) shall have
any liability or further obligation to any other party to this Agreement, except
as provided in this Section 8.05 and except that nothing herein shall relieve
any party from liability for any breach of this Agreement.

    (b) In the event of a termination of this Agreement by Parent pursuant to
Section 8.02(c) then, in any such case, the Company shall within two business
days of such termination pay Parent by wire transfer or immediately available
funds to an account specified by Parent a fee of $5.5 million.

    (c) In the event of a termination of this Agreement (i) pursuant to Section
8.01(c) based on the Company's actions or omissions or (d) or (ii) by Parent
pursuant to Section 8.02(a) or (b), and in the case of either clause (i) or
clause (ii), prior to such termination any person shall have made a proposal
with respect to an Acquisition Transaction with the Company or its stockholders,
and, if prior to or within twelve months after such termination the Company or
any subsidiary of the Company enters into a definitive agreement with a third
party with respect to, or consummates, an Acquisition Transaction, then the
Company, as a condition to and prior to the earlier of entering into any such
definitive agreement and consummating an Acquisition Transaction, shall pay
Parent by wire transfer or immediately available funds to an account specified
by Parent, a fee of $5.5 million.

    (d) The Company acknowledges that Parent would suffer direct and substantial
damages, which damages cannot be determined with reasonable certainty in the
event that this Agreement shall be terminated under circumstances referred to in
Section 8.03(c) and paragraphs (b) and (c) of Section 8.05. The parties
acknowledge that the agreements contained in this Article VIII (including this
Section 8.05) are an integral part of the transactions contemplated by this
Agreement and that, without these agreements, the parties would not enter into
this Agreement. Parent and Purchaser acknowledge that whenever a fee is payable
by the Company to Parent pursuant this Article VIII, payment by the Company of
such fee in accordance with the terms of the applicable paragraph shall be
deemed a release of the Company from all liability under this Agreement.

    SECTION 8.06.  EXTENSION; WAIVER.  Subject to Section 1.03(b), at any time
prior to the Effective Time, the parties hereto may (i) extend the time for the
performance of any of the obligations or other acts of any other party hereto,
(ii) waive any inaccuracies in the representations and warranties

                                      A-38
<PAGE>
contained herein by any other party or in any document, certificate or writing
delivered pursuant hereto by any other party or (iii) waive compliance with any
of the agreements of any other party or with any conditions to its own
obligations. Any agreement on the part of any party to any such extension or
waiver shall be valid only if set forth in an instrument in writing signed on
behalf of such party.

                                   ARTICLE IX
                                    CLOSING

    SECTION 9.01.  TIME AND PLACE.  Subject to the provisions of Articles VII
and VIII, the closing of the Merger (the "Closing") shall take place at the
offices of Cahill Gordon & Reindel, as soon as practicable but in no event later
than 9:30 A.M., local time, on the first business day after the date on which
each of the conditions set forth in Articles VII and VIII have been satisfied or
waived by the party or parties entitled to the benefit of such conditions; or at
such other place, at such other time, or on such other date as Parent, Purchaser
and the Company may mutually agree. The date on which the Closing actually
occurs is herein referred to as the "Closing Date."

    SECTION 9.02.  FILINGS AT THE CLOSING.  Subject to the provisions of
Articles VII and VIII, the Company, Parent and Purchaser shall cause to be
executed and filed at the Closing the Certificate of Merger and shall cause the
Certificate of Merger to be recorded in accordance with the applicable
provisions of the Delaware Act and shall take any and all other lawful actions
and do any and all other lawful things necessary to cause the Merger to become
effective.

                                   ARTICLE X
                                 MISCELLANEOUS

    SECTION 10.01.  NON-SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  The
representations and warranties made in this Agreement shall not survive beyond
the Effective Time.

    SECTION 10.02.  ENTIRE AGREEMENT; ASSIGNMENT.

    (a) This Agreement (including the documents and the instruments referred to
herein) the Confidentiality Agreement executed by Parent dated July 13, 1999 and
the Confidentiality Agreement executed by the Company dated July   , 1999
constitute the entire agreement and supersede all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof and thereof.

    (b) Neither this Agreement nor any of the rights, interests or obligations
hereunder will be assigned by any of the parties hereto (whether by operation of
law or otherwise) without the prior written consent of the other party. Subject
to the preceding sentence, this Agreement will be binding upon, inure to the
benefit of and be enforceable by the parties and their respective successors and
assigns.

    SECTION 10.03.  VALIDITY.  The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision of this Agreement, each of which shall remain in full force
and effect.

    SECTION 10.04.  NOTICES.  All notices, requests, claims, demands and other
communications hereunder shall be in writing and shall be deemed to have been
duly given when delivered in person, by overnight courier or facsimile (with
receipt confirmed) to the respective parties as follows:

                                      A-39
<PAGE>
    If to Parent or the Purchaser:

    Biovail Corporation International
    2488 Dunwin
    Drive Mississauga, Ontario Canada, L5L 1J9
    Attention: General Counsel
    Fax:      (416) 285-6499
    with a copy to:
    Cahill Gordon & Reindel
    80 Pine Street
    New York, New York 10005
    Attention: Roger Andrus, Esq.
    Fax:      212-269-5420
    If to the Company:
    Fuisz Technologies Ltd.
    14555 Avion at Lakeside
    Chantilly, Virginia 20150
    Attention: General Counsel
    Fax:      (703) 995-2445
    with a copy to:
    Gibson Dunn & Crutcher LLP
    1050 Connecticut Avenue, N.W.
    Washington, D.C. 20036
    Attention: Ronald Mueller, Esq.
    Fax:      (202) 530-9569

or to such other address as the person to whom notice is given may have
previously furnished to the other in writing in the manner set forth above
(provided that notice of any change of address shall be effective only upon
receipt thereof).

    SECTION 10.05.  GOVERNING LAW; JURISDICTION.

    (a) This Agreement shall be governed by and construed in accordance with the
laws of the State of Delaware, regardless of the laws that might otherwise
govern under applicable principles of conflicts of laws thereof.

    (b) In addition, each of the parties hereto agrees that it will not bring
any action relating to this Agreement or any of the transactions contemplated
hereby in any court other than a federal or state court sitting in the State of
Delaware.

    SECTION 10.06.  DESCRIPTIVE HEADINGS.  The descriptive headings herein are
inserted for convenience of reference only and are not intended to be part of or
to affect the meaning or interpretation of this Agreement.

                                      A-40
<PAGE>
    SECTION 10.07.  COUNTERPARTS.  This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original, but all of which
shall constitute one and the same agreement.

    SECTION 10.08.  PARTIES IN INTEREST.  This Agreement shall be binding upon
and inure solely to the benefit of each party hereto, and, except with respect
to Sections 2.09, 3.01 and 6.05, nothing in this Agreement, express or implied,
is intended to confer upon any other person any rights or remedies of any nature
whatsoever under or by reason of this Agreement.

    SECTION 10.09.  CERTAIN DEFINITIONS.  As used in this Agreement:

        (a) the term "affiliate", as applied to any person, shall mean any other
    person directly or indirectly controlling, controlled by, or under common
    control with, that person. For the purposes of this definition, "control"
    (including, with correlative meanings, the terms "controlling," "controlled
    by" and "under common control with"), as applied to any person, means the
    possession, directly or indirectly, of the power to direct or cause the
    direction of the management and policies of that person, whether through the
    ownership of voting securities, by contract or otherwise;

        (b) the term "knowledge" shall mean the actual knowledge of, with
    respect to the Company, the Company's executive officers and, with respect
    to Parent or Purchaser, Parent's executive officers;

        (c) the term "person" shall include individuals, corporations,
    partnerships, trusts, other entities and groups (which term shall include a
    "group" as such term it defined in Section 13(d)(3) of the Exchange Act);

        (d) the term "subsidiary" or "subsidiaries", means, with respect to
    Parent, the Company, or any other person, any corporation, partnership,
    joint venture or other legal entity of which Parent, the Company or such
    other person, as the case may be (either alone or through or together with
    any other subsidiary), owns, directly or indirectly, stock or other equity
    interests the holders of which are generally entitled to more than 50% of
    the vote for the election of the board of directors or other governing body
    of such corporation or other legal entity;

        (e) The term "TAX" or "TAXES" means (i) all federal, state, local or
    foreign taxes, charges, fees, imposts, levies or other assessments,
    including, without limitation, all net income, alternative minimum, gross
    receipts, capital, sales, use, ad valorem, value added, transfer, franchise,
    profits, inventory, capital stock, license, withholding, payroll,
    employment, social security, unemployment, excise, severance, stamp,
    occupation, property and estimated taxes, customs duties, fees, assessments
    and charges of any kind whatsoever, (ii) all interest, penalties, fines,
    additions to tax or other additional amounts imposed by any taxing authority
    in connection with any item described in clause (i) and (iii) all
    transferee, successor, joint and several or contractual liability
    (including, without limitation, liability pursuant to Treas. Reg. Section
    1.1502-6 (or any similar state, local or foreign provision)) in respect of
    any items described in clause (i) or (ii);

        (f) The term "Tax Return" means all returns, declarations, reports,
    estimates, information returns and statements required to be filed in
    respect of any Taxes; and

        (g) the term "Termination Fee" means a fee payable by the Company to
    Parent pursuant to Section 8.05(b), (c) or (d) of this Agreement.

    SECTION 10.10.  REMEDIES.  Except as set forth below, the parties hereto
agree that irreparable damage would occur in the event that any of the
provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise breached, and, accordingly, it is agreed that
the parties shall be entitled to an injunction or injunctions to prevent such
breaches of this Agreement and to enforce specifically the terms and provisions
hereof in any court of the United States or any state

                                      A-41
<PAGE>
having jurisdiction, this being in addition to any other remedy to which they
are entitled at law or in equity. In the event of a termination of this
Agreement pursuant to which a Termination Fee is paid pursuant to Section 8.05
hereof, the receipt of such Termination Fee shall serve as payment of liquidated
damages with respect to any breach of this Agreement by the party paying such
Termination Fee giving rise to such termination, and receipt of such Termination
Fee shall be the sole and exclusive remedy (at law or in equity) with respect to
any such breach.

    IN WITNESS WHEREOF, each of the parties has caused this Amended and Restated
Agreement to be executed on its behalf by its respective officer thereunto duly
authorized, all as of the day and year first above written.

<TABLE>
<S>                             <C>  <C>
                                BIOVAIL CORPORATION INTERNATIONAL

                                By:             /s/ EUGENE N. MELNYK
                                     -----------------------------------------
                                               Name: Eugene N. Melnyk
                                                  Title:  Chairman

                                ABCI ACQUISITION SUB. CORPORATION

                                By:             /s/ EUGENE N. MELNYK
                                     -----------------------------------------
                                               Name: Eugene N. Melnyk
                                                  Title:  Chairman

                                FUISZ TECHNOLOGIES LTD.

                                By:            /s/ STEVEN H. WILLARD
                                     -----------------------------------------
                                              Name: Steven H. Willard
                                          Title:  Executive Vice President
                                                and General Counsel
</TABLE>

                                      A-42
<PAGE>
                                                                         ANNEX B

                      [LETTERHEAD OF WARBURG DILLON READ LLC]

                                          July 25, 1999

The Board of Directors and
  Special Committee of the Board of Directors
Fuisz Technologies Ltd.
14555 Avion at Lakeside
Chantilly, Virginia 22021

Dear Members of the Board of Directors and Special Committee:

    We understand that Fuisz Technologies Ltd. ("Fuisz") is considering a
transaction whereby (i) Biovail Corporation International ("Biovail") will cause
ABCI Acquisition Sub. Corporation, an indirect wholly owned subsidiary of
Biovail ("Sub"), to commence a tender offer to purchase such number of shares of
the common stock, par value $0.01 per share, of Fuisz ("Fuisz Common Stock" and,
such tender offer, the "Tender Offer") as will cause Biovail and its affiliates
to beneficially own up to 49%, but not less than 40%, of the outstanding shares
of Fuisz Common Stock, at a purchase price of $7.00 per share, net to the seller
in cash (the "Cash Consideration") and (ii) subsequent to the Tender Offer, Sub
will be merged with and into Fuisz (the "Merger" and, together with the Tender
Offer, the "Transaction") pursuant to which each outstanding share of Fuisz
Common Stock not previously tendered and not owned directly or indirectly by
Biovail or Fuisz will be converted into the right to receive that number of
shares (the resulting number, the "Exchange Ratio" and, together with the Cash
Consideration, the "Consideration") of the common stock, no par value, of
Biovail ("Biovail Common Stock") to be determined as follows: (a) if the average
of the daily closing prices per share of Biovail Common Stock on the New York
Stock Exchange ("NYSE") Composite Transactions Reporting System for the 15
trading days ending on the date immediately prior to the second full NYSE
trading day immediately preceding the closing date of the Merger (the "Average
Trading Price") is less than $45.000, then the Exchange Ratio will equal 0.1556;
(b) if the Average Trading Price is greater than or equal to $45.000, but less
than or equal to $58.625, then the Exchange Ratio will equal a fraction
determined by dividing $7.00 by the Average Trading Price; (c) if the Average
Trading Price is greater than $58.625 but less than or equal to $62.810, then
the Exchange Ratio will equal 0.1194; and (d) if the Average Trading Price is
greater than $62.810, then Exchange Ratio will equal a fraction determined by
dividing $7.50 by the Average Trading Price. The terms and conditions of the
Transaction are more fully set forth in the Agreement and Plan of Merger, dated
as of July 25, 1999, among Biovail, Sub and Fuisz (the "Merger Agreement").

    You have requested our opinion as to the fairness, from a financial point of
view, of the Consideration to be received in the Transaction by holders of Fuisz
Common Stock (other than Biovail and its affiliates).

    Warburg Dillon Read LLC ("WDR") has acted as financial advisor to the
Special Committee in connection with the Transaction and will receive a fee for
its services, a significant portion of which is contingent upon the consummation
of the Transaction and a portion of which is payable upon the delivery of this
opinion. In the ordinary course of business, WDR, its successors and affiliates
may trade securities of Fuisz and Biovail for their own accounts and,
accordingly, may at any time hold a long or short position in such securities.

    Our opinion does not address Fuisz's underlying business decision to effect
the Transaction or constitute a recommendation to any stockholder of Fuisz as to
whether or not such stockholder should tender shares of Fuisz Common Stock in
the Tender Offer or how such stockholder should vote with respect to the Merger.
At your direction, we have not been asked to, nor do we, offer any opinion as

                                      B-1
<PAGE>
The Board of Directors and

  Special Committee of the Board of Directors
Fuisz Technologies Ltd.

July 25, 1999
Page 2

to the material terms of the Merger Agreement and the obligations thereunder, or
the form of the Transaction. We express no opinion as to what the value of
Biovail Common Stock will be when issued pursuant to the Merger or the price at
which Biovail Common Stock will trade or otherwise be transferable subsequent to
the Merger. In rendering this opinion, we have assumed, with your consent, that
each of Fuisz, Biovail and Sub will comply with all material terms of the Merger
Agreement, as applicable, and that the Transaction will be validly consummated
in accordance with its terms. In connection with our engagement, at your
direction, we were not requested to, and we did not, solicit third party
indications of interest with respect to the acquisition of all or a part of
Fuisz. We have been advised by representatives of Fuisz that, prior to our
engagement, Fuisz received an indication of interest in the purchase of the
outstanding shares of Fuisz Common Stock from another third party which
reflected a higher per share purchase price than the Consideration to be
received in the Transaction and which the Special Committee and the Board of
Directors determined not to pursue as a result of various conditions and other
factors. The Special Committee and the Board of Directors have therefore
instructed us not to consider such indication of interest in arriving at our
opinion.

    In arriving at our opinion, we have, among other things: (i) reviewed
certain publicly available business and historical financial information
relating to Fuisz and Biovail; (ii) reviewed certain internal financial
information and other data relating to the businesses and financial prospects of
Fuisz and Biovail, including estimates and financial forecasts prepared by the
management of Fuisz and estimates and financial forecasts prepared by the
management of Biovail as adjusted by Fuisz, that were provided to us by Fuisz
and Biovail and not publicly available; (iii) conducted discussions with members
of the senior managements of Fuisz and Biovail; (iv) reviewed publicly available
financial and stock market data with respect to certain other companies in lines
of business we believe to be generally comparable to those of Fuisz and Biovail;
(v) compared the financial terms of the Transaction with the publicly available
financial terms of certain other transactions which we believe to be generally
relevant; (vi) reviewed the Merger Agreement; and (vii) conducted such other
financial studies, analyses, and investigations, and considered such other
information as we deemed necessary or appropriate.

    In connection with our review, with your consent, we have not assumed any
responsibility for independent verification of any of the information provided
to or reviewed by us for the purpose of this opinion and have, with your
consent, relied on its being complete and accurate in all material respects. In
addition, at your direction, we have not made any independent evaluation or
appraisal of any of the assets or liabilities (contingent or otherwise) of Fuisz
or Biovail, nor have we been furnished with any such evaluation or appraisal.
With respect to the financial forecasts and estimates referred to above, we have
assumed, at your direction, that they have been reasonably prepared on a basis
reflecting the best currently available estimates and judgments of the
managements of Fuisz and Biovail as to the future performance of Fuisz and
Biovail. Our opinion is necessarily based on economic, monetary, market and
other conditions as in effect on, and the information made available to us, as
of the date of this letter.

    Based upon and subject to the foregoing, it is our opinion that, as the date
hereof, the Consideration to be received in the Transaction by the holders of
Fuisz Common Stock (other than Biovail and its affiliates) is fair, from a
financial point of view, to such holders.

                                          Very truly yours,

                                          WARBURG DILLON READ LLC

                                      B-2


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