Document:

<PAGE>

                              AMENDED AND RESTATED
                                RIGHTS AGREEMENT

                                     BETWEEN

                                  VIDAMED, INC.

                                       AND

                          COMPUTERSHARE TRUST COMPANY,

                                 AS RIGHTS AGENT

                          DATED AS OF NOVEMBER 8, 2001

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                               TABLE OF CONTENTS

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                                                                            Page
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<S>                                                                         <C>
Section 1.   Certain Definitions.............................................  1

Section 2.   Appointment of Rights Agent.....................................  7

Section 3.   Issuance of Rights Certificates.................................  7

Section 4.   Form of Rights Certificates.....................................  9

Section 5.   Countersignature and Registration............................... 10

Section 6.   Transfer, Split Up, Combination and Exchange of Rights
             Certificates; Mutilated, Destroyed, Lost or Stolen Rights
             Certificates.................................................... 10

Section 7.   Exercise of Rights; Exercise Price; Expiration Date of Rights... 11

Section 8.   Cancellation and Destruction of Rights Certificates............. 13

Section 9.   Reservation and Availability of Preferred Shares................ 13

Section 10.  Record Date..................................................... 14

Section 11.  Adjustment of Exercise Price, Number of Shares or Number of
             Rights ......................................................... 15

Section 12.  Certificate of Adjusted Exercise Price or Number of Shares...... 21

Section 13.  Consolidation, Merger or Sale or Transfer of Assets or
             Earning Power................................................... 21

Section 14.  Fractional Rights and Fractional Shares......................... 26

Section 15.  Rights of Action ............................................... 27

Section 16.  Agreement of Rights Holders .................................... 27

Section 17.  Rights Certificate Holder Not Deemed a Stockholder ............. 27

Section 18.  Concerning the Rights Agent..................................... 28

Section 19.  Merger or Consolidation or Change of Name of Rights Agent....... 28

Section 20.  Duties of Rights Agent.......................................... 29

Section 21.  Change of Rights Agent.......................................... 31

Section 22.  Issuance of New Rights Certificates............................. 31

Section 23.  Redemption...................................................... 32

Section 24.  Exchange........................................................ 33

Section 25.  Notice of Certain Events........................................ 34

Section 26.  Notice.......................................................... 35

Section 27.  Supplements and Amendments...................................... 35

Section 28.  Successors...................................................... 36

Section 29.  Determinations and Actions by the Board of Directors etc ....... 36
</TABLE>

                                       i

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                               TABLE OF CONTENTS
                                  (continued)

<TABLE>
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Section 30.  Benefits of this Agreement.................... ................  36

Section 31.  Severability...................................................  36

Section 32.  Governing Law..................................................  37

Section 33.  Counterparts...................................................  37

Section 34.  Descriptive Headings...........................................  37
</TABLE>

EXHIBITS
--------

Exhibit A    Certificate of Designations of Rights, Preferences and Privileges
             of Series A Participating Preferred Stock of VidaMed, Inc.

Exhibit B    Form of Rights Certificate

Exhibit C    Summary of Rights

                                       ii

<PAGE>

                      AMENDED AND RESTATED RIGHTS AGREEMENT

         THIS AMENDED AND RESTATED RIGHTS AGREEMENT (this "Agreement"), dated as
of November 8, 2001, is between VidaMed, Inc. a Delaware corporation, and
Computershare Trust Company, as Rights Agent.

         On December 19, 1996 (the "Rights Dividend Declaration Date"), the
Board of Directors of the Company authorized and declared a dividend of one
Preferred Share Purchase Right (a "Right") for each Common Share (as hereinafter
defined) of the Company outstanding as of the Close of Business (as hereinafter
defined) on January 31, 1997 (the "Record Date"), each Right representing the
right to purchase one one-thousandth of a share of Series A Participating
Preferred Stock (as such number may be adjusted pursuant to the provisions of
this Agreement), having the rights, preferences and privileges set forth in the
form of Certificate of Designations of Rights, Preferences and Privileges of
Series A Participating Preferred Stock attached hereto as Exhibit A, upon the
terms and subject to the conditions herein set forth, and further authorized and
directed the issuance of one Right (as such number may be adjusted pursuant to
the provisions of this Agreement) with respect to each Common Share that shall
become outstanding between the Record Date and the earlier of the Distribution
Date and the Expiration Date (as such terms are hereinafter defined), and in
certain circumstances after the Distribution Date.

         Section 27 of this Agreement provides that, prior to the Distribution
Date, the Company may amend this Agreement, and that, upon any such amendment,
the Rights Agent shall amend this Agreement as the Company directs.

         Effective as of January 3, 2000, this Agreement was amended to increase
the percentage beneficial ownership trigger from 20% to 25% for Medtronic Asset
Management, Inc. or any of its affiliates or associates for purposes of the
definition of "Acquiring Person."

         To the best knowledge of the Board of Directors of the Company, the
Distribution Date has not occurred prior to the date hereof and the Company
desires to amend and restate this Agreement in its entirety as hereinafter set
forth to conform this Agreement to current Delaware law by deleting the
"continuing director" or what is commonly referred to as "dead hand" provisions,
and to incorporate the previous amendments to this Agreement.

         NOW, THEREFORE, in consideration of the promises and the mutual
agreements herein set forth, the parties hereby agree as follows:

         Section 1.   Certain Definitions. For purposes of this Agreement, the
                      -------------------
following terms have the meanings indicated:

               (a)  "Acquiring Person" shall mean any Person who or which,
together with all Affiliates and Associates of such Person, shall be the
Beneficial Owner of 20% or more of the Common Shares then outstanding (the
"Acquiring Person Triggering Amount"), but shall not include the Company, any
Subsidiary of the Company or any employee benefit plan of the Company or of any
Subsidiary of the Company, or any entity holding Common Shares for or

                                       1

<PAGE>

pursuant to the terms of any such plan. Notwithstanding the foregoing, no Person
shall be deemed to be an Acquiring Person as the result of an acquisition of
Common Shares by the Company which, by reducing the number of shares
outstanding, increases the proportionate number of shares beneficially owned by
such Person to the Acquiring Person Triggering Amount; provided, however, that
                                                       --------  -------
if a Person shall become the Beneficial Owner of the Acquiring Person Triggering
Amount by reason of share purchases by the Company and shall, after such share
purchases by the Company, become the Beneficial Owner of any additional Common
Shares of the Company (other than pursuant to a dividend or distribution paid or
made by the Company on the outstanding Common Shares in Common Shares or
pursuant to a split or subdivision of the outstanding Common Shares), then such
Person shall be deemed to be an Acquiring Person unless upon becoming the
Beneficial Owner of such additional Common Shares of the Company such Person
does not beneficially own the Acquiring Person Triggering Amount.
Notwithstanding the foregoing, (i) if the Board of Directors of the Company
determines in good faith that a Person who would otherwise be an "Acquiring
Person," as defined pursuant to the provisions of this paragraph (a), has become
such inadvertently (including, without limitation, because (A) such Person was
unaware that it beneficially owned a percentage of the Common Shares that would
otherwise cause such Person to be an "Acquiring Person," as defined pursuant to
the provisions of this paragraph (a), or (B) such Person was aware of the extent
of the Common Shares it beneficially owned but had no actual knowledge of the
consequences of such beneficial ownership under this Agreement) and without any
intention of changing or influencing control of the Company, and if such Person
divested or divests as promptly as practicable a sufficient number of Common
Shares so that such Person would no longer be an "Acquiring Person," as defined
pursuant to the provisions of this paragraph (a), then such Person shall not be
deemed to be or to have become an "Acquiring Person" for any purposes of this
Agreement; and (ii) if, as of January 27, 1997, any Person is the Beneficial
Owner of 20% or more of the Common Shares outstanding, such Person shall not be
or become an "Acquiring Person," as defined pursuant to the provisions of this
paragraph (a), unless and until such time as such Person shall become the
Beneficial Owner of additional Common Shares (other than pursuant to a dividend
or distribution paid or made by the Company on the outstanding Common Shares in
Common Shares or pursuant to a split or subdivision of the outstanding Common
Shares), unless, upon becoming the Beneficial Owner of such additional Common
Shares, such Person is not then the Beneficial Owner of the Acquiring Person
Trigger Amount. For purposes of this definition of "Acquiring Person", the
Acquiring Person Trigger Amount for Medtronic Asset Management, Inc. or any of
its Affiliates or Associates (collectively, the "Medtronic Group") shall be
25.0% or more of the Common Shares then outstanding (the "Medtronic Trigger
Amount") which shall be applicable if any member of the Medtronic Group has, or,
together with any Affiliates and Associates of Medtronic, shall be the
Beneficial Owner of, such Medtronic Trigger Amount.

               (b)  "Adjustment Fraction" shall have the meaning set forth in
Section 11(a)(i) hereof.

               (c)  "Affiliate" and "Associate" shall have the respective
meanings ascribed to such terms in Rule l2b-2 of the General Rules and
Regulations under the Exchange Act, as in effect on the date of this Agreement.

                                       2

<PAGE>

               (d)  A Person shall be deemed the "Beneficial Owner" of and shall
be deemed to "beneficially own" any securities:

                    (i)   which such Person or any of such Person's Affiliates
or Associates beneficially owns, directly or indirectly, for purposes of Section
13(d) of the Exchange Act and Rule 13d-3 thereunder (or any comparable or
successor law or regulation);

                    (ii)  which such Person or any of such Person's Affiliates
or Associates has (A) the right to acquire (whether such right is exercisable
immediately or only after the passage of time) pursuant to any agreement,
arrangement or understanding (other than customary agreements with and between
underwriters and selling group members with respect to a bona fide public
offering of securities), or upon the exercise of conversion rights, exchange
rights, rights (other than the Rights), warrants or options, or otherwise;
provided, however, that a Person shall not be deemed pursuant to this Section
--------  -------
l(d)(ii)(A) to be the Beneficial Owner of, or to beneficially own, (1)
securities tendered pursuant to a tender or exchange offer made by or on behalf
of such Person or any of such Person's Affiliates or Associates until such
tendered securities are accepted for purchase or exchange, or (2) securities
which a Person or any of such Person's Affiliates or Associates may be deemed to
have the right to acquire pursuant to any merger or other acquisition agreement
between the Company and such Person (or one or more of its Affiliates or
Associates) if such agreement has been approved by the Board of Directors of the
Company prior to there being an Acquiring Person; or (B) the right to vote
pursuant to any agreement, arrangement or understanding; provided, however, that
                                                         --------  -------
a Person shall not be deemed the Beneficial Owner of, or to beneficially own,
any security under this Section 1(d)(ii)(B) if the agreement, arrangement or
understanding to vote such security (1) arises solely from a revocable proxy or
consent given to such Person in response to a public proxy or consent
solicitation made pursuant to, and in accordance with, the applicable rules and
regulations of the Exchange Act and (2) is not also then reportable on Schedule
13D under the Exchange Act (or any comparable or successor report); or

                    (iii) which are beneficially owned, directly or indirectly,
by any other Person (or any Affiliate or Associate thereof) with which such
Person or any of such Person's Affiliates or Associates has any agreement,
arrangement or understanding, whether or not in writing (other than customary
agreements with and between underwriters and selling group members with respect
to a bona fide public offering of securities) for the purpose of acquiring,
holding, voting (except to the extent contemplated by the proviso to Section
1(d)(ii)(B)) or disposing of any securities of the Company; provided, however,
                                                            --------  -------
that in no case shall an officer or director of the Company be deemed (x) the
Beneficial Owner of any securities beneficially owned by another officer or
director of the Company solely by reason of actions undertaken by such persons
in their capacity as officers or directors of the Company or (y) the Beneficial
Owner of securities held of record by the trustee of any employee benefit plan
of the Company or any Subsidiary of the Company for the benefit of any employee
of the Company or any Subsidiary of the Company, other than the officer or
director, by reason of any influence that such officer or director may have over
the voting of the securities held in the plan.

               (e)  "Business Day" shall mean any day other than a Saturday,
Sunday or a day on which banking institutions in New York are authorized or
obligated by law or executive order to close.

                                       3

<PAGE>

               (f) "Close of Business" on any given date shall mean 5:00 P.M.,
New York time, on such date, provided, however, that if such date is not a
                             --------  -------
Business Day it shall mean 5:00 P.M., New York time, on the next succeeding
Business Day.

               (g) "Common Shares" when used with reference to the Company shall
mean the shares of Common Stock of the Company, $.001 par value. Common Shares
when used with reference to any Person other than, the Company shall mean the
capital stock (or equity interest) with the greatest voting power of such other
Person or, if such other Person is a Subsidiary of another Person, the Person or
Persons which ultimately control such first-mentioned Person.

               (h) "Common Stock Equivalents" shall have the meaning set forth
in Section 11(a)(iii) hereof.

               (i) "Company" shall mean VidaMed, Inc., a Delaware corporation,
subject to the terms of Section 13(a)(iii)(C) hereof.

               (j) "Current Per Share Market Price" of any security (a
"Security" for purposes of this definition), for all computations other than
those made pursuant to Section 11(a)(iii) hereof, shall mean the average of the
daily closing prices per share of such Security for the thirty (30) consecutive
Trading Days immediately prior to such date, and for purposes of computations
made pursuant to Section 11(a)(iii) hereof the Current Per Share Market Price of
any Security on any date shall be deemed to be the average of the daily closing
prices per share of such Security for the ten (10) consecutive Trading Days
immediately prior to such date; provided, however, that in the event that the
                                --------  -------
Current Per Share Market Price of the Security is determined during a period
following the announcement by the issuer of such Security of (i) a dividend or
distribution on such Security payable in shares of such Security or securities
convertible into such shares or (ii) any subdivision, combination or
reclassification of such Security, and prior to the expiration of the applicable
thirty (30) Trading Day or ten (10) Trading Day period, after the ex-dividend
date for such dividend or distribution, or the record date for such subdivision,
combination or reclassification, then, and in each such case, the Current Per
Share Market Price shall be appropriately adjusted to reflect the current market
price per share equivalent of such Security. The closing price for each day
shall be the last sale price, regular way, or, in case no such sale takes place
on such day, the average of the closing bid and asked prices, regular way, in
either case as reported in the principal consolidated transaction reporting
system with respect to securities listed or admitted to trading on The New York
Stock Exchange or, if the Security is not listed or admitted to trading on The
New York Stock Exchange, as reported in the principal consolidated transaction
reporting system with respect to securities listed on the principal national
securities exchange on which the Security is listed or admitted to trading or,
if the Security is not listed or admitted to trading on any national securities
exchange, the last sale price or, if such last sale price is not reported, the
average of the high bid and low asked prices in the over-the-counter market, as
reported by Nasdaq or such other system then in use, or, if on any such date the
Security is not quoted by any such organization, the average of the closing bid
and asked prices as furnished by a professional market maker making a market in
the Security selected by the Board of Directors of the Company. If on any such
date no market maker is making a market in the Security, the fair value of such
shares on such date as determined in good faith by the Board of Directors of the
Company shall be used. If the Preferred Shares are not publicly traded, the
Current Per Share

                                       4

<PAGE>

Market Price of the Preferred Shares shall be conclusively deemed to be the
Current Per Share Market Price of the Common Shares as determined pursuant to
this Section 1(j), as appropriately adjusted to reflect any stock split, stock
dividend or similar transaction occurring after the date hereof, multiplied by
1000. If the Security is not publicly held or so listed or traded, Current Per
Share Market Price shall mean the fair value per share as determined in good
faith by the Board of Directors of the Company, whose determination shall be
described in a statement filed with the Rights Agent and shall be conclusive for
all purposes.

               (k)  "Current Value" shall have the meaning set forth in Section
11(a)(iii) hereof.

               (l)  "Distribution Date" shall mean the earlier of (i) the Close
of Business on the tenth day (or such later date as may be determined by the
Board of Directors of the Company) after the Shares Acquisition Date (or, if the
tenth day after the Shares Acquisition Date occurs before the Record Date, the
Close of Business on the Record Date) or (ii) the Close of Business on the tenth
Business Day (or such later date as may be determined by the Board of Directors
of the Company) after the date that a tender or exchange offer by any Person
(other than the Company, any Subsidiary of the Company, any employee benefit
plan of the Company or of any Subsidiary of the Company, or any Person or entity
organized, appointed or established by the Company for or pursuant to the terms
of any such plan) is first published or sent or given within the meaning of Rule
14d-2(a) of the General Rules and Regulations under the Exchange Act, if,
assuming the successful consummation thereof, such Person would be an Acquiring
Person.

               (m)  "Equivalent Shares" shall mean Preferred Shares and any
other class or series of capital stock of the Company which is entitled to the
same rights, privileges and preferences as the Preferred Shares.

               (n)  "Exchange Act" shall mean the Securities Exchange Act of
1934, as amended,

               (o)  "Exchange Ratio" shall have the meaning set forth in Section
24(a) hereof.

               (p)  "Exercise Price" shall have the meaning set forth in Section
4(a) hereof.

               (q)  "Expiration Date" shall mean the earliest to occur of: (i)
the Close of Business on the Final Expiration Date, (ii) the Redemption Date,
(iii) consummation of any transaction contemplated by Section 13(f) hereof, or
(iv) the time at which the Board of Directors of the Company orders the exchange
of the Rights as provided in Section 24 hereof.

               (r)  "Final Expiration Date" shall mean December 19, 2006.

               (s)  "Nasdaq" shall mean the National Association of Securities
Dealers, Inc. Automated Quotations System.

               (t)  "Permitted Offer" shall mean a tender offer for all
outstanding Common Shares made in the manner prescribed by Section 14(d) of the
Exchange Act and the rules and

                                       5

<PAGE>

regulations promulgated thereunder; provided, however, that such tender offer
                                    --------  -------
occurs at a time when the Board of Directors of the Company has determined that
the offer is both fair and otherwise in the best interests of the Company and
its stockholders (taking into account all factors that the Board of Directors of
the Company deem relevant).

            (u)  "Person" shall mean any individual, firm, corporation or other
entity, and shall include any successor (by merger or otherwise) of such entity.

            (v)  "Post-Event Transferee" shall have the meaning set forth in
Section 1(e) hereof.

            (w)  "Preferred Shares" shall mean shares of Series A Participating
Preferred Stock, $.001 par value, of the Company.

            (x)  "Pre-Event Transferee" shall have the meaning set forth in
Section 7(e) hereof.

            (y)  "Principal Party" shall have the meaning set forth in Section
13(b) hereof.

            (z)  "Record Date" shall have the meaning set forth in the recitals
at the beginning of this Agreement.

            (aa) "Redemption Date" shall have the meaning set forth in Section
23(a) hereof.

            (bb) "Redemption Price" shall have the meaning set forth in Section
23(a) hereof.

            (cc) "Rights Agent" shall mean Computershare Trust Company or its
successor or replacement as provided in Sections 19 and 21 hereof.

            (dd) "Rights Certificate" shall mean a certificate substantially in
the form attached hereto as Exhibit B.

            (ee) "Rights Dividend Declaration Date" shall have the meaning set
forth in the recitals at the beginning of this Agreement.

            (ff) "Section 11(a)(ii) Trigger Date" shall have the meaning set
forth in Section 11(a)(iii) hereof.

            (gg) "Section 13 Event" shall mean any event described in clause
(i), (ii) or (iii) of Section 13(a) hereof.

            (hh) "Securities Act" shall mean the Securities Act of 1933, as
amended.

            (ii) "Shares Acquisition Date" shall mean the first date of public
announcement (which, for purposes of this definition, shall include, without
limitation, a report filed pursuant to Section 13(d) under the Exchange Act) by
the Company or an Acquiring

                                       6

<PAGE>

Person that an Acquiring Person has become such; provided that, if such Person
                                                 -------------
is determined not to have become an Acquiring Person pursuant to Section 1(a)
hereof, then no Shares Acquisition Date shall be deemed to have occurred.

            (jj) "Spread" shall have the meaning set forth in Section 11(a)(iii)
hereof.

            (kk) "Subsidiary" of any Person shall mean any corporation or other
entity of which an amount of voting securities sufficient to elect a majority of
the directors or Persons having similar authority of such corporation or other
entity is beneficially owned, directly or indirectly, by such Person, or any
corporation or other entity otherwise controlled by such Person.

            (ll) "Substitution Period" shall have the meaning set forth in
Section 11 (a)(iii) hereof.

            (mm) "Summary of Rights" shall mean a summary of this Agreement
substantially in the form attached hereto as Exhibit C.

            (nn) "Total Exercise Price" shall have the meaning set forth in
Section 4(a) hereof.

            (oo) "Trading Day" shall mean a day on which the principal national
securities exchange on which a referenced security is listed or admitted to
trading is open for the transaction of business or, if a referenced security is
not listed or admitted to trading on any national securities exchange, a
Business Day.

            (pp) A "Triggering Event" shall be deemed to have occurred upon any
Person, becoming an Acquiring Person.

      Section 2. Appointment of Rights Agent. The Company hereby appoints the
                 ---------------------------
Rights Agent to act as agent for the Company and the holders of the Rights (who,
in accordance with Section 3 hereof shall prior to the Distribution Date also be
the holders of the Common Shares) in accordance with the terms and conditions
hereof, and, the Rights Agent hereby accepts such appointment. The Company may
from time to time appoint such co-Rights Agents as it may deem necessary or
desirable.

      Section 3. Issuance of Rights Certificates.
                 -------------------------------

            (a)  Until the Distribution Date, (i) the Rights will be evidenced
(subject to the provisions of Sections 3(b) and 3(c) hereof) by the certificates
for Common Shares registered in the names of the holders thereof (which
certificates shall also be deemed to be Rights Certificates) and not by separate
Rights Certificates and (ii) the right to receive Rights Certificates will be
transferable only in connection with the transfer of Common Shares. Until the
earlier of the Distribution Date or the Expiration Date, the surrender for
transfer of certificates for Common Shares shall also constitute the surrender
for transfer of the Rights associated with the Common Shares represented
thereby. As soon as practicable after the Distribution Date, the Company will
prepare and execute, the Rights Agent will countersign, and the Company will
send or cause to be sent (and the Rights Agent will, if requested, send) by

                                        7

<PAGE>

first-class, postage-prepaid mail, to each record holder of Common Shares as of
the Close of Business on the Distribution Date, at the address of such holder
shown on the records of the Company, a Rights Certificate evidencing one Right
for each Common Share so held subject to adjustment as provided herein. In the
event that an adjustment in the number of Rights per Common Share has been made
pursuant to Section 11 hereof, then at the time of distribution of the Rights
Certificates, the Company shall make the necessary and appropriate rounding
adjustments (in accordance with Section 14(a) hereof) so that Rights
Certificates representing only whole numbers of Rights are distributed and cash
is paid in lieu of any fractional Rights. As of the Distribution Date, the
Rights will be evidenced solely by such Rights Certificates and may be
transferred by the transfer of the Rights Certificates as permitted hereby,
separately and apart from any transfer of Common Shares, and the holders of such
Rights Certificates as listed in the records of the Company or any transfer
agent or registrar for the Rights shall be the record holders thereof.

            (b) On the Record Date or as soon as practicable thereafter, the
Company will send a copy of the Summary of Rights by first-class,
postage-prepaid mail, to each record holder of Common Shares as of the Close of
Business on the Record Date, at the address of such holder shown on the records
of the Company's transfer agent and registrar. With respect to certificates for
Common Shares outstanding as of the Record Date, until the Distribution Date,
the Rights will be evidenced by such certificates registered in the names of the
holders thereof together with the Summary of Rights. Until the Distribution Date
(or, if earlier, the Expiration Date), the surrender for transfer of any
certificate for Common Shares outstanding on the Record Date, with or without a
copy of the Summary of Rights, shall also constitute the transfer of the Rights
associated with the Common Shares represented thereby.

            (c) Unless the Board of Directors of the Company by resolution
adopted at or before the time of the issuance of any Common Shares specifies to
the contrary, Rights shall be issued in respect of all Common Shares that are
issued after the Record Date but prior to the earlier of the Distribution Date
or the Expiration Date or, in certain circumstances provided in Section 22
hereof, after the Distribution Date. Certificates representing such Common
Shares shall also be deemed to be certificates for Rights, and shall bear the
following legend:

         THIS CERTIFICATE ALSO EVIDENCES AND ENTITLES THE HOLDER HEREOF TO
         CERTAIN RIGHTS AS SET FORTH IN AN AMENDED AND RESTATED RIGHTS AGREEMENT
         BETWEEN VIDAMED, INC. AND COMPUTERSHARE TRUST COMPANY, AS THE RIGHTS
         AGENT, DATED AS OF NOVEMBER 8, 2001 (THE "RIGHTS AGREEMENT"), THE TERMS
         OF WHICH ARE HEREBY INCORPORATED HEREIN BY REFERENCE AND A COPY OF
         WHICH IS ON FILE AT THE PRINCIPAL EXECUTIVE OFFICES OF VIDAMED, INC.
         UNDER CERTAIN CIRCUMSTANCES, AS SET FORTH IN THE RIGHTS AGREEMENT, SUCH
         RIGHTS WILL BE EVIDENCED BY SEPARATE CERTIFICATES AND WILL NO LONGER BE
         EVIDENCED BY THIS CERTIFICATE. V1DAMED, INC. WILL MAIL TO THE HOLDER OF
         THIS CERTIFICATE A COPY OF THE RIGHTS AGREEMENT WITHOUT CHARGE AFTER
         RECEIPT OF A WRITTEN REQUEST THEREFOR. UNDER CERTAIN CIRCUMSTANCES SET
         FORTH IN THE RIGHTS AGREEMENT, RIGHTS ISSUED TO, OR HELD BY, ANY

                                       8

<PAGE>

          PERSON WHO IS, WAS OR BECOMES AN ACQUIRING PERSON OR ANY AFFILIATE OR
          ASSOCIATE THEREOF (AS SUCH TERMS ARE DEFINED IN THE RIGHTS AGREEMENT),
          WHETHER CURRENTLY HELD BY OR ON BEHALF OF SUCH PERSON OR BY ANY
          SUBSEQUENT HOLDER, MAY BECOME NULL AND VOID.

With respect to such certificates containing the foregoing legend, until the
earlier of (i) the Distribution Date or (ii) the Expiration Date, the Rights
associated with the Common Shares represented by such certificates shall be
evidenced by such certificates alone, and the surrender for transfer of any such
certificate shall also constitute the transfer of the Rights associated with the
Common Shares represented thereby.

            (d) In the event that the Company purchases or acquires any Common
Shares after the Record Date but prior to the Distribution Date, any Rights
associated with such Common Shares shall be deemed canceled and retired so that
the Company shall not be entitled to exercise any Rights associated with the
Common Shares which are no longer outstanding.

     Section 4. Form of Rights Certificates.
                ---------------------------

            (a) The Rights Certificates (and the forms of election to purchase
Common Shares and of assignment to be printed on the reverse thereof) shall be
substantially in the form of Exhibit B hereto and may have such marks of
identification or designation and such legends, summaries or endorsements
printed thereon as the Company may deem appropriate and as are not inconsistent
with the provisions of this Agreement, or as may be required to comply with any
applicable law or with any rule or regulation made pursuant thereto or with any
rule or regulation of any stock exchange or a national market system, on which
the Rights may from time to time be listed or included, or to conform to usage.
Subject to the provisions of Section 11 and Section 22 hereof, the Rights
Certificates, whenever distributed shall be dated as of the Record Date (or in
the case of Rights issued with respect to Common Shares issued by the Company
after the Record Date, as of the date of issuance of such Common Shares) and on
their face shall entitle the holders thereof to purchase such number of
one-thousandths of a Preferred Share as shall be set forth therein at the price
set forth therein (such exercise price per one one-thousandth of a Preferred
Share being hereinafter referred to as the "Exercise Price" and the aggregate
Exercise Price of all Preferred Shares issuable upon exercise of one Right being
hereinafter referred to as the "Total Exercise Price"), but the number and type
of securities purchasable upon the exercise of each Right and the Exercise Price
shall be subject to adjustment as provided herein.

            (b) Any Rights Certificate issued pursuant to Section 3(a) or
Section 22 hereof that represents Rights beneficially owned by: (i) an Acquiring
Person or any Associate or Affiliate of an Acquiring Person, (ii) a transferee
of an Acquiring Person (or of any such Associate or Affiliate) who becomes a
transferee after the Acquiring Person becomes such or (iii) a transferee of an
Acquiring Person (or of any such Associate or Affiliate) who becomes a
transferee prior to or concurrently with the Acquiring Person becoming such and
receives such Rights pursuant to either (A) a transfer (whether or not for
consideration) from the Acquiring Person to holders of equity interests in such
Acquiring Person or to any Person with whom such Acquiring Person has any
continuing agreement, arrangement or understanding regarding the

                                        9

<PAGE>

transferred Rights or (B) a transfer which the Board of Directors of the Company
has determined is part of a plan, arrangement or understanding which has as a
primary purpose or effect avoidance of Section 7(e) hereof, and any Rights
Certificate issued pursuant to Section 6 or Section 11 hereof upon transfer,
exchange, replacement or adjustment of any other Rights Certificate referred to
in this sentence, shall contain (to the extent feasible) the following legend:

          THE RIGHTS REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR WERE
          BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING PERSON
          OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS ARE
          DEFINED IN THE RIGHTS AGREEMENT). ACCORDINGLY, THIS RIGHTS CERTIFICATE
          AND THE RIGHTS REPRESENTED HEREBY MAY BECOME NULL AND VOID IN THE
          CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF THE RIGHTS AGREEMENT.

     Section 5. Countersignature and Registration.
                ---------------------------------

            (a) The Rights Certificates shall be executed on behalf of the
Company by its Chairman of the Board, its Chief Executive Officer, its Chief
Financial Officer, its President or any Vice President, either manually or by
facsimile signature, and by the Secretary or an Assistant Secretary of the
Company, either manually or by facsimile signature, and shall have affixed
thereto the Company's seal (if any) or a facsimile thereof. The Rights
Certificates shall be manually countersigned by the Rights Agent and shall not
be valid for any purpose unless countersigned. In case any officer of the
Company who shall have signed any of the Rights Certificates shall cease to be
such officer of the Company before countersignature by the Rights Agent and
issuance and delivery by the Company, such Rights Certificates, nevertheless,
may be countersigned by the Rights Agent and issued and delivered by the Company
with the same force and effect as though the person who signed such Rights
Certificates on behalf of the Company had not ceased to be such officer of the
Company, and any Rights Certificate may be signed on behalf of the Company by
any person who, at the actual date of the execution of such Rights Certificate,
shall be a proper officer of the Company to sign such Rights Certificate,
although at the date of the execution of this Agreement any such person was not
such an officer.

            (b) Following the Distribution Date, the Rights Agent will keep or
cause to be kept, at its office designated for such purposes, books far
registration and transfer of the Rights Certificates issued hereunder. Such
books shall show the names and addresses of the respective holders of the Rights
Certificates, the number of Rights evidenced on its face by each of the Rights
Certificates and the date of each of the Rights Certificates.

     Section 6. Transfer, Split Up, Combination and Exchange of Rights
                ------------------------------------------------------
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.
----------------------------------------------------------------------

            (a) Subject to the provisions of Sections 7(e), 14 and 24 hereof, at
any time after the Close of Business on the Distribution Date, and at or prior
to the Close of Business on the Expiration Date, any Rights Certificate or
Rights Certificates may be transferred, split up, combined or exchanged for
another Rights Certificate or Rights Certificates, entitling the

                                       10

<PAGE>

registered holder to purchase a like number of one-thousandths of a Preferred
Share (or, following a Triggering Event, other securities, cash or other assets,
as the case may be) as the Rights Certificate or Rights Certificates surrendered
then entitled such holder to purchase. Any registered holder desiring to
transfer, split up, combine or exchange any Rights Certificate or Rights
Certificates shall make such request in writing delivered to the Rights Agent,
and shall surrender the Rights Certificate or Rights Certificates to be
transferred, split up, combined or exchanged at the office of the Rights Agent
designated for such purpose. Neither the Rights Agent nor the Company shall be
obligated to take any action whatsoever with respect to the transfer of any such
surrendered Rights Certificate until the registered holder shall have completed
and signed the certificate contained in the form of assignment on the reverse
side of such Rights Certificate and shall have provided such additional evidence
of the identity of the Beneficial Owner (or former Beneficial Owner) or
Affiliates or Associates thereof as the Company shall reasonably request.
Thereupon the Rights Agent shall, subject to Sections 7(e), 14 and 24 hereof,
countersign and deliver to the person entitled thereto a Rights Certificate or
Rights Certificates, as the case may be, as so requested. The Company may
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer, split up, combination or
exchange of Rights Certificates.

        (b) Upon receipt by the Company and the Rights Agent of evidence
reasonably satisfactory to them of the loss, theft, destruction or mutilation of
a Rights Certificate, and, in case of loss, theft or destruction, of indemnity
or security reasonably satisfactory to them, and, at the Company's request,
reimbursement to the Company and the Rights Agent of all reasonable expenses
incidental thereto, and upon surrender to the Rights Agent and cancellation of
the Rights Certificate if mutilated, the Company will make and deliver a new
Rights Certificate of like tenor to the Rights Agent for delivery to the
registered holder in lieu of the Rights Certificate so lost, stolen, destroyed
or mutilated.

     Section 7. Exercise of Rights; Exercise Price; Expiration Date of Rights.
                -------------------------------------------------------------

        (a) Subject to Sections 7(e), 23(b) and 24(b) hereof, the registered
holder of any Rights Certificate may exercise the Rights evidenced thereby
(except as otherwise provided herein) in whole or in part at any time after the
Distribution Date and prior to the Close of Business on the Expiration Date by
surrender of the Rights Certificate, with the form of election to purchase on
the reverse side thereof duly executed, to the Rights Agent at the office of the
Rights Agent designated for such purpose, together with payment of the Exercise
Price for each one-thousandth of a Preferred Share (or, following a Triggering
Event, other securities, cash or other assets as the case may be) as to which
the Rights are exercised.

        (b) The Exercise Price for each one-thousandth of a Preferred Share
issuable pursuant to the exercise of a Right shall initially be Fifty Dollars
($50.00), shall be subject to adjustment from time to time as provided in
Sections 11 and 13 hereof and shall be payable in lawful money of the United
States of America in accordance with paragraph (c) below.

        (c) Upon receipt of a Rights Certificate representing exercisable
Rights, with the form of election to purchase duly executed accompanied by
payment of the Exercise Price for the number of one-thousandths of a Preferred
Share (or, following a Triggering Event, other securities, cash or other assets
as the case may be) to be purchased and an amount equal to any

                                       11

<PAGE>

applicable transfer tax required to be paid by the holder of such Rights
Certificate in accordance with Section 9(e) hereof the Rights Agent shall,
subject to Section 20(k) hereof thereupon promptly (i) (A) requisition from any
transfer agent of the Preferred Shares (or make available, if the Rights Agent
is the transfer agent for the Preferred Shares) a certificate or certificates
for the number of one-thousandths of a Preferred Share (or, following a
Triggering Event, other securities, cash or other assets as the case may be) to
be purchased and the Company hereby irrevocably authorizes its transfer agent to
comply with all such requests or (B) if the Company shall have elected to
deposit the total number of one-thousandths of a Preferred Share (or, following
a Triggering Event, other securities, cash or other assets as the case may be)
issuable upon exercise of the Rights hereunder with a depositary agent,
requisition from the depositary agent depositary receipts representing such
number of one-thousandths of a Preferred Share (or, following a Triggering
Event, other securities, cash or other assets as the case may be) as are to be
purchased (in which case certificates for the Preferred Shares (or, following a
Triggering Event, other securities, cash or other assets as the case may be)
represented by such receipts shall be deposited by the transfer agent with the
depositary agent) and the Company hereby directs the depositary agent to comply
with such request, (ii) when appropriate, requisition from the Company the
amount of cash to be paid in lieu of issuance of fractional shares in accordance
with Section 14 hereof, (iii) after receipt of such certificates or depositary
receipts, cause the same to be delivered to or upon the order of the registered
holder of such Rights Certificate, registered in such name or names as may be
designated by such holder and (iv) when appropriate, after receipt thereof
deliver such cash to or upon the order of the registered holder of such Rights
Certificate. The payment of the exercise Price (as such amount may be reduced
(including to zero) pursuant to Section 11(a)(iii) hereof) and an amount equal
to any applicable transfer tax required to be paid by the holder of such Rights
Certificate in accordance with Section 9(e) hereof may be made in cash or by
certified bank check, cashier's check or bank draft payable to the order of the
Company. In the event that the Company is obligated to issue securities of the
Company other than Preferred Shares, pay cash and/or distribute other property
pursuant to Section 11(a) hereof, the Company will make all arrangements
necessary so that such other securities, cash and/or other property are
available for distribution by the Rights Agent, if and when appropriate.

        (d) In case the registered holder of any Rights Certificate shall
exercise less than all the Rights evidenced thereby, a new Rights Certificate
evidencing Rights equivalent to the Rights remaining unexercised shall be issued
by the Rights Agent to the registered holder of such Rights Certificate or to
his or her duly authorized assigns, subject to the provisions of Section 14
hereof.

        (e) Notwithstanding anything in this Agreement to the contrary, from and
after the first occurrence of a Triggering Event, any Rights beneficially owned
by (i) an Acquiring Person or an Associate or Affiliate of an Acquiring Person,
(ii) a transferee of an Acquiring Person (or of any such Associate or Affiliate)
who becomes a transferee after the Acquiring Person becomes such (a "Post-Event
Transferee"), (iii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) who becomes a transferee prior to or concurrently with
the Acquiring Person becoming such and receives such Rights pursuant to either
(A) a transfer (whether or not for consideration) from the Acquiring Person to
holders of equity interests in such Acquiring Person or to any Person with whom
the Acquiring Person has any continuing agreement, arrangement or understanding
regarding the transferred Rights or (B) a

                                       12

<PAGE>

transfer which the Board of Directors of the Company has determined is part of a
plan, arrangement or understanding which has as a primary purpose or effect the
avoidance of this Section 7(e) (a "Pre-Event Transferee") or (iv) any subsequent
transferee receiving transferred Rights from a Post-Event Transferee or a
Pre-Event Transferee, either directly or through one or more intermediate
transferees, shall become null and void without any further action and no holder
of such Rights shall have any rights whatsoever with respect to such Rights
whether under any provision of this Agreement or otherwise. The Company shall
use all reasonable efforts to ensure that the provisions of this Section 7(e)
and Section 4(b) hereof are complied with, but shall have no liability to any
holder of Rights Certificates or to any other Person as a result of its failure
to make any determinations with respect to an Acquiring Person or any of such
Acquiring Person's Affiliates, Associates or transferees hereunder.

        (f) Notwithstanding anything in this Agreement to the contrary, neither
the Rights Agent nor the Company shall be obligated to undertake any action with
respect to a registered holder upon the occurrence of any purported exercise as
set forth in this Section 7 unless such registered holder shall, in addition to
having complied with the requirements of Section 7(a), have (i) completed and
signed the certificate contained in the form of election to purchase set forth
on the reverse side of the Rights Certificate surrendered for such exercise and
(ii) provided such additional evidence of the identity of the Beneficial Owner
(or former Beneficial Owner) or Affiliates or Associates thereof as the Company
shall reasonably request.

     Section 8. Cancellation and Destruction of Rights Certificates. All Rights
                ---------------------------------------------------
Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall if surrendered to the Company or to any of its
agents, be delivered to the Rights Agent for cancellation or in canceled form,
or, if surrendered to the Rights Agent, shall be canceled by it, and no Rights
Certificates shall be issued in lieu thereof except as expressly permitted by
any of the provisions of this Agreement. The Company shall deliver to the Rights
Agent for cancellation and retirement, and the Rights Agent shall so cancel and
retire, any Rights Certificate purchased or acquired by the Company otherwise
than upon the exercise thereof. The Rights Agent shall deliver all canceled
Rights Certificates to the Company, or shall, at the written request of the
Company, destroy such canceled Rights Certificates, and in such case shall
deliver a certificate of destruction thereof to the Company.

     Section 9. Reservation and Availability of Preferred Shares.
                ------------------------------------------------

        (a) The Company covenants and agrees that it will use its best efforts
to cause to be reserved and kept available out of its authorized and unissued
Preferred Shares not reserved for another purpose (and, following the occurrence
of a Triggering Event, out of its authorized and unissued Common Shares and/or
other securities), the number of Preferred Shares (and, following the occurrence
of the Triggering Event, Common Shares and/or other securities) that will be
sufficient to permit the exercise in full of all outstanding Rights.

        (b) If the Company shall hereafter list any of its Preferred Shares on a
national securities exchange, then so long as the Preferred Shares (and,
following the occurrence of a Triggering Event, Common Shares and/or other
securities) issuable and deliverable upon exercise of the Rights may be listed
on such exchange, the Company shall use its best efforts to cause, from and
after such time as the Rights become exercisable (but only to the extent that it
is

                                       13

<PAGE>

reasonably likely that the Rights will be exercised), all shares reserved for
such issuance to be listed on such exchange upon official notice of issuance
upon such exercise.

        (c) The Company shall use its best efforts to (i) file, as soon as
practicable following the earliest date after the first occurrence of a
Triggering Event in which the consideration to be delivered by the Company upon
exercise of the Rights is described in Section 11(a)(ii) or Section 11(a)(iii)
hereof or as soon as is required by law following the Distribution Date, as the
case may be, a registration statement under the Securities Act with respect to
the securities purchasable upon exercise of the Rights on an appropriate form,
(ii) cause such registration statement to become effective as soon as
practicable after such filing and (iii) cause such registration statement to
remain effective (with a prospectus at all times meeting the requirements of the
Securities Act) until the earlier of (A) the date as of which the Rights are no
longer exercisable for such securities and (B) the date of expiration of the
Rights. The Company may temporarily suspend, for a period not to exceed ninety
(90) days after the date set forth the clause (i) of the first sentence of this
Section 9(c), the exercisability of the Rights in order to prepare and file such
registration statement and permit it to become effective. Upon any such
suspension, the Company shall issue a public announcement stating, and notify
the Rights Agent, that the exercisability of the Rights has been temporarily
suspended, as well as a public announcement and notification to the Rights Agent
at such time as the suspension is no longer in effect. The Company will also
take such action as may be appropriate under, or to ensure compliance with, the
securities or "blue sky" laws of the various states in connection with the
exercisability of the Rights. Notwithstanding any provision of this Agreement to
the contrary, the Rights shall not be exercisable in any jurisdiction, unless
the requisite qualification in such jurisdiction shall have been obtained, or an
exemption therefrom shall be available, and until a registration statement has
been declared effective.

        (d) The Company covenants and agrees that it will take all such action
as may be necessary to ensure that all Preferred Shares (or other securities of
the Company) delivered upon exercise of Rights shall, at the time of delivery of
the certificates for such securities (subject to payment of the Exercise Price),
be duly and validly authorized and issued and fully paid and nonassessable
shares.

        (e) The Company further covenants and agrees that it will pay when due
and payable any and all federal and state transfer taxes and charges which may
be payable in respect of the original issuance or delivery of the Rights
Certificates or of any Preferred Shares (or other securities of the Company)
upon the exercise of Rights. The Company shall not, however, be required to pay
any transfer tax which may be payable in respect of any transfer or delivery of
Rights Certificates to a person other than, or the issuance or delivery of
certificates or depositary receipts for the Preferred Shares (or other
securities of the Company) in a name other than that to the registered holder of
the Rights Certificate evidencing Rights surrendered for exercise or to issue or
to deliver any certificates or depositary receipts for Preferred Shares (or
other securities of the Company) upon the exercise of any Rights until any such
tax shall have been paid (any such tax being payable by the holder of such
Rights Certificate at the time of surrender) or until it has been established to
the Company's satisfaction that no such tax is due.

     Section 10. Record Date. Each Person in whose name any certificate for a
                 -----------
number of one-thousandths of a Preferred Share (or other securities of the
Company) is issued upon the

                                       14

<PAGE>

exercise of Rights shall for all purposes be deemed to have become the holder of
record of Preferred Shares (or other securities of the Company) represented
thereby on, and such certificate shall be dated, the date upon which the Rights
Certificate evidencing such Rights was duly surrendered and payment of the Total
Exercise Price with respect to which the Rights have been exercised (and any
applicable transfer taxes) was made; provided, however, that if the date of such
                                     --------  -------
surrender and payment is a date upon which the transfer books of the Company are
closed, such Person shall be deemed to have become the record holder of such
shares on, and such certificate shall be dated, the next succeeding Business Day
on which the transfer books of the Company are open. Prior to the exercise of
the Rights evidenced thereby, the holder of a Rights Certificate shall not be
entitled to any rights of a holder of Preferred Shares (or other securities of
the Company) for which the Rights shall be exercisable, including, without
limitation, the right to vote, to receive dividends or other distributions or to
exercise any preemptive rights, and shall not be entitled to receive any notice
of any proceedings of the Company, except as provided herein.

     Section 11. Adjustment of Exercise Price, Number of Shares or Number of
                 -----------------------------------------------------------
Rights. The Exercise Price, the number and kind of shares or other property
------
covered by each Right and the number of Rights outstanding are subject to
adjustment from time to time as provided in this Section 11.

        (a)

              (i) Anything in this Agreement to the contrary notwithstanding, in
the event the Company shall at any time after the date of this Agreement (A)
declare a dividend on the Preferred Shares payable in Preferred Shares, (B)
subdivide the outstanding Preferred Shares, (C) combine the outstanding
Preferred Shares (by reverse stock split or otherwise) into a smaller number of
Preferred Shares, or (D) issue any shares of its capital stock in a
reclassification of the Preferred Shares (including any such reclassification in
connection with a consolidation or merger in which the Company is the continuing
or surviving corporation), then, in each such event, except as otherwise
provided in this Section 11 and Section 7(e) hereof: (1) the Exercise Price in
effect at the time of the record date for such dividend or of the effective date
of such subdivision, combination or reclassification shall be adjusted so that
the Exercise Price thereafter shall equal the result obtained by dividing the
Exercise Price in effect immediately prior to such time by a fraction (the
"Adjustment Fraction"), the numerator of which shall be the total number of
Preferred Shares (or shares of capital stock issued in such reclassification of
the Preferred Shares) outstanding immediately following such time and the
denominator of which shall be the total number of Preferred Shares outstanding
immediately prior to such time; provided, however, that in no event shall the
                                --------  -------
consideration to be paid upon the exercise of one Right be less than the
aggregate par value of the shares of capital stock of the Company issuable upon
exercise of such Right; and (2) the number of one-thousandths of a Preferred
Share (or share of such other capital stock) issuable upon the exercise at each
Right shall equal the number of one-thousandths of a Preferred Share (or share
of such other capital stock) as was issuable upon exercise of a Right
immediately prior to the occurrence of the event described in clauses (A)-(D) of
this Section 11(a)(i), multiplied by the Adjustment Fraction; provided, however,
                                                              --------  -------
that, no such adjustment shall be made pursuant to this Section 11(a)(i) to the
extent that there shall have simultaneously occurred an event described in
clause (A), (B), (C) or (D) of Section 11(n) with a proportionate adjustment
being made thereunder. Each Common Share that shall become outstanding after an

                                       15

<PAGE>

adjustment has been made pursuant to this Section 11(a)(i) shall have associated
with it the number of Rights, exercisable at the Exercise Price and for the
number of one-thousandths of a Preferred Share (or shares of such other capital
stock) as one Common Share has associated with it immediately following the
adjustment made pursuant to this Section 11(a)(i).

               (ii)  Subject to Section 24 of this Agreement, in the event a
Triggering Event shall have occurred, then promptly following such Triggering
Event each holder of a Right, except as provided in Section 7(e) hereof, shall
thereafter have the right to receive for each Right, upon exercise thereof in
accordance with the terms of this Agreement and payment of the Exercise Price in
effect immediately prior to the occurrence of the Triggering Event, in lieu of a
number of one-thousandths of a Preferred Share, such number of Common Shares of
the Company as shall equal the result obtained by multiplying the Exercise Price
in effect immediately prior to the occurrence of the Triggering Event by the
number of one-thousandths of a Preferred Share for which a Right was exercisable
(or would have been exercisable if the Distribution Date had occurred)
immediately prior to the first occurrence of a Triggering Event, and dividing
that product by 50% of the Current Per Share Market Price for Common Shares on
the date of occurrence of the Triggering Event; provided, however, that the
                                                --------  -------
Exercise Price and the number of Common Shares of the Company so receivable upon
exercise of a Right shall be subject to further adjustment as appropriate in
accordance with Section 11(c) hereof to reflect any events occurring in respect
of the Common Shares of the Company after the occurrence of the Triggering
Event. Notwithstanding the foregoing provisions of this Section 11(a)(ii), the
right to buy Common Shares of the Company pursuant to Section 1l(a)(ii) hereof
shall not arise as a result of any Person becoming an Acquiring Person through
an acquisition of Common Shares pursuant to a Permitted Offer,

               (iii) In lieu of issuing Common Shares in accordance with Section
11(a)(ii) hereof, the Company may, if the Board of Directors of the Company
determines that such action is necessary or appropriate and not contrary to the
interest of holders of Rights and, in the event that the number of Common Shares
which are authorized by the Company's certificate of incorporation but not
outstanding or reserved for issuance for purposes other than upon exercise of
the Rights are not sufficient to permit the exercise in full of the Rights, or
if any necessary regulatory approval for such issuance has not been obtained by
the Company, the Company shall: (A) determine the excess of (1) the value of the
Common Shares issuable upon the exercise of a Right (the "Current Value") over
(2) the Exercise Price (such excess, the "Spread") and (B) with respect to each
Right, make adequate provision to substitute for such Common Shares, upon
exercise of the Rights, (1) cash, (2) a reduction in the Exercise Price, (3)
other equity securities of the Company (including, without limitation, shares or
units of shares of any series of preferred stock which the Board of Directors of
the Company has deemed to have the same value as Common Shares (such shares or
units of shares of preferred stock are herein called "Common Stock
Equivalents")), except to the extent that the Company has not obtained any
necessary stockholder or regulatory approval for such issuance, (4) debt
securities of the Company, except to the extent that the Company has not
obtained any necessary stockholder or regulatory approval for such issuance, (5)
other assets or (6) any combination of the foregoing, having an aggregate value
equal to the Current Value, where such aggregate value has been determined by
the Board of Directors of the Company based upon the advice of a nationally
recognized investment banking firm selected by the Board of Directors of the
Company; provided, however, if the Company shall not have made adequate
         --------  -------
provision to deliver value

                                       16

<PAGE>

pursuant to clause (B) above within thirty (30) days following the later of (x)
the first occurrence of a Triggering Event and (y) the date on which the
Company's right of redemption pursuant to Section 23(a) expires (the later of
(x) and (y) being referred to herein as the "Section 11(a)(ii) Trigger Date"),
then the Company shall be obligated to deliver, upon the surrender far exercise
of a Right and without requiring payment of the Exercise Price, Common Shares
(to the extent available), except to the extent that the Company has not
obtained any necessary stockholder or regulatory approval for such issuance, and
then, if necessary, cash, which shares and/or cash have an aggregate value equal
to the Spread. If the Board of Directors of the Company shall determine in good
faith that it is likely that sufficient additional Common Shares could be
authorized for issuance upon exercise in full of the Rights or that any
necessary regulatory approval for such issuance will be obtained, the thirty
(30) day period set forth above may be extended to the extent necessary, but not
more than ninety (90) days after the Section 11(a)(ii) Trigger Date, in order
that the Company may seek stockholder approval for the authorization of such
additional shares or take action to obtain such regulatory approval (such
period, as it may be extended, the "Substitution Period"). To the extent that
the Company determines that some action need be taken pursuant to the first
and/or second sentences of this Section 11(a)(iii), the Company (x) shall
provide, subject to Section 7(c) hereof, that such action shall apply uniformly
to all outstanding Rights and (y) may suspend the exercisability of the Rights
until the expiration of the Substitution Period in order to seek any
authorization of additional shares, to take any action to obtain any required
regulatory approval and/or to decide the appropriate form of distribution to be
made pursuant to such first sentence and to determine the value thereof. In the
event of any such suspension, the Company shall issue a public announcement
stating that the exercisability of the Rights has been temporarily suspended, as
well as a public announcement at such time as the suspension is no longer in
effect. For purposes of this Section 11(a)(iii), the value of the Common Shares
shall be the Current Per Share Market Price of the Common Shares on the Section
11(a)(ii) Trigger Date and the value of any Common Stock Equivalent shall be
deemed to have the same value as the Common Shares on such date.

          (b) In case the Company shall, at any time after the dare of this
Agreement, fix a record date for the issuance of rights, options or warrants to
all holders of Preferred Shares entitling such holders (for a period expiring
within forty-five (45) calendar days after such record date) to subscribe for or
purchase Preferred Shares or Equivalent Shares or securities convertible into
Preferred Shares or Equivalent Shares at a price per share (or having a
conversion price per share, if a security convertible into Preferred Shares or
Equivalent Shares) less than the then Current Per Share Market Price of the
Preferred Shares or Equivalent Shares on such record date, then, in each such
case, the Exercise Price to be in effect after such record date shall be
determined by multiplying the Exercise Price in effect immediately prior to such
record date by a fraction, the numerator of which shall be the number of
Preferred Shares and Equivalent Shares (if any) outstanding on such record date,
plus the number of Preferred Shares or Equivalent Shares, as the case may be,
which the aggregate offering price of the total number of Preferred Shares or
Equivalent Shares, as the case may be, to be offered or issued (and/or the
aggregate initial conversion price of the convertible securities to be offered
or issued) would purchase at such current market price, and the denominator of
which shall be the number of Preferred Shares and Equivalent Shares (if any)
outstanding on such record date, plus the number of additional Preferred Shares
or Equivalent Shares, as the case may be, to be offered for subscription or
purchase (or into which the convertible securities so to be offered are
initially convertible); provided, however, that in no event shall the
                        --------  -------
consideration to be paid upon

                                       17

<PAGE>

the exercise of one Right be less than the aggregate par value of the shares of
capital stock of the Company issuable upon exercise of one Right. In case such
subscription price may be paid in a consideration part or all of which shall be
in a form other than cash, the value of such consideration shall be as
determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent and
shall be binding on the Rights Agent and the holders of the Rights. Preferred
Shares and Equivalent Shares owned by or held for the account of the Company
shall not be deemed outstanding for the purpose of any such computation. Such
adjustment shall be made successively whenever such a record date is fixed, and
in the event that such rights, options or warrants are not so issued, the
Exercise Price shall be adjusted to be the Exercise Price which would then be in
effect if such record date had not been fixed,

          (c) In case the Company shall, at any time after the date of this
Agreement, fix a record date for the making of a distribution to all holders of
the Preferred Shares or of any class or series of equivalent Shares (including
any such distribution made in connection with a consolidation or merger in which
the Company is the continuing or surviving corporation) of evidences of
indebtedness or assets (other than a regular quarterly cash dividend, if any, or
a dividend payable in Preferred Shares) or subscription rights, options or
warrants (excluding those referred to in Section 11(b)), then, in each such
case, the Exercise Price to be in effect after such record date shall be
determined by multiplying the Exercise Price in effect immediately prior to such
record date by a fraction, the numerator of which shall be the Current Per Share
Market Price of a Preferred Share or an Equivalent Share on such record date,
less the fair market value per Preferred Share or Equivalent Share (as
determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent) of
the portion of the cash, assets or evidences of indebtedness so to be
distributed or of such subscription rights or warrants applicable to a Preferred
Share or Equivalent Share, as the case may be, and the denominator of which
shall be such Current Per Share Market Price of a Preferred Share or Equivalent
Share on such record date; provided, however, that in no event shall the
                           --------  -------
consideration to be paid upon the exercise of one Right be less than the
aggregate par value of the shares of capital stock of the Company issuable upon
exercise of one Right. Such adjustments shall be made successively whenever such
a record date is fixed, and in the event that such distribution is not so made,
the Exercise Price shall be adjusted to be the Exercise Price which would have
been in effect if such record date had not been fixed.

          (d) Anything herein to the contrary notwithstanding, no adjustment in
the Exercise Price shall be required unless such adjustment would require an
increase or decrease of at least 1% of the Exercise Price; provided, however,
                                                           --------  -------
that any adjustments which by reason of this Section 11(d) are not required to
be made shall be carried forward and taken into account in any subsequent
adjustment. All calculations under this Section 11 shall be made to the nearest
cent or to the nearest ten-thousandth of a Common Share or other share or one
hundred-thousandth of a Preferred Share, as the case may be. Notwithstanding the
first sentence of this Section 11(d), any adjustment required by this Section 11
shall be made no later than the earlier of (i) three (3) years from the date of
the transaction which requires such adjustment or (ii) the Expiration Date.

                                       18

<PAGE>

          (e) If as a result of an adjustment made pursuant to Section 11(a) or
13(a) hereof, the holder of any Right thereafter exercised shall become entitled
to receive any shares of capital stock other than Preferred Shares, thereafter
the number of such other shares so receivable upon exercise of any Right and, if
required, the Exercise Price thereof, shall be subject to adjustment from time
to time in a manner and on terms as nearly equivalent as practicable to the
provisions with respect to the Preferred Shares contained in Sections 11(a),
11(b), 11(c), 11(d), 11(g), 11(h), 11(i), 11(j), 11(k) and 11(l), and the
provisions of Sections 7, 9, 10, 13 and 14 with respect to the Preferred Shares
shall apply on like terms to any such other shares.

          (f) All Rights originally issued by the Company subsequent to any
adjustment made to the Exercise Price hereunder shall evidence the right to
purchase, at the adjusted Exercise Price, the number of one-thousandths of a
Preferred Share purchasable from time to time hereunder upon exercise of the
Rights, all subject to further adjustment as provided herein.

          (g) Unless the Company shall have exercised its election as provided
in Section 11(h), upon each adjustment of the Exercise Price as a result of the
calculations made in Section 11(b) and (c), each Right outstanding immediately
prior to the making of such adjustment shall thereafter evidence the right to
purchase, at the adjusted Exercise Price, that number of Preferred Shares
(calculated to the nearest one hundred-thousandth of a share) obtained by (i)
multiplying (x) the number of Preferred Shares covered by a Right immediately
prior to this adjustment, by (y) the Exercise Price in effect immediately prior
to such adjustment of the Exercise Price, and (ii) dividing the product so
obtained by the Exercise Price in effect immediately after such adjustment of
the Exercise Price.

          (h) The Company may elect on or after the date of any adjustment of
the Exercise Price as a result of the calculations made in Section 11(b) or (c)
to adjust the number of Rights, in substitution for any adjustment in the number
of Preferred Shares purchasable upon the exercise of a Right. Each of the Rights
outstanding after such adjustment of the number of Rights shall be exercisable
for the number of one-thousandths of a Preferred Share for which a Right was
exercisable immediately prior to such adjustment. Each Right held of record
prior to such adjustment of the number of Rights shall become that number of
Rights (calculated to the nearest one hundred-thousandth) obtained by dividing
the Exercise Price in effect immediately prior to adjustment of the Exercise
Price by the Exercise Price in effect immediately after adjustment of the
Exercise Price. The Company shall make a public announcement of its election to
adjust the number of Rights, indicating the record date for the adjustment, and,
if known at the time, the amount of the adjustment to be made. This record date
may be the date on which the Exercise Price is adjusted or any day thereafter,
but if the Rights Certificates have been issued, shall be at least ten (10) days
later than the date of the public announcement. If Rights Certificates have been
issued, upon each adjustment of the number of Rights pursuant to this Section
11(h), the Company shall, as promptly as practicable, cause to be distributed to
holders of record of Rights Certificates on such record date Rights Certificates
evidencing, subject to Section 14 hereof, the additional Rights to which such
holders shall be entitled as a result of such adjustment, or at the option of
the Company, shall cause to be distributed to such holders of record in
substitution and replacement for the Rights Certificates held by such holders
prior to the date of adjustment, and upon surrender thereof, if required by the
Company, new Rights Certificates evidencing all the Rights to which such

                                       19

<PAGE>

holders shall be entitled after such adjustment. Rights Certificates so to be
distributed shall be issued, executed and countersigned in the manner provided
for herein (and may bear, at the option of the Company, the adjusted Exercise
Price) and shall be registered in the names of the holders of record of Rights
Certificates on the record date specified in the public announcement.

          (i) Irrespective of any adjustment or change in the Exercise Price or
the number of Preferred Shares issuable upon the exercise of the Rights, the
Rights Certificates theretofore and thereafter issued may continue to express
the Exercise Price per one one-thousandth of a Preferred Share and the number of
one-thousandths of a Preferred Share which were expressed in the initial Rights
Certificates issued hereunder.

          (j) Before taking any action that would cause an adjustment reducing
the Exercise Price below the par or stated value, if any, of the number of
one-thousandths of a Preferred Share issuable upon exercise of the Rights, the
Company shall take any corporate action which may, in the opinion of its
counsel, be necessary in order that the Company may validly and legally issue as
fully paid and nonassessable shares such number of one-thousandths of a
Preferred Share at such adjusted Exercise Price,

          (k) In any case in which this Section 11 shall require that an
adjustment in the Exercise Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuing to the holder of any Right exercised after such record date of
the number of one-thousandths of a Preferred Share and other capital stock or
securities of the Company, if any, issuable upon such exercise over and above
the number of one-thousandths of a Preferred Share and other capital stock or
securities of the Company, if any, issuable upon such exercise on the basis of
the Exercise Price in effect prior to such adjustment; provided, however, that
                                                       --------  -------
the Company shall deliver to such holder a due bill or other appropriate
instrument evidencing such holder's right to receive such additional shares
(fractional or otherwise) upon the occurrence of the event requiring such
adjustment.

          (l) Anything in this Section 11 to the contrary notwithstanding, prior
to the Distribution Date, the Company shall be entitled to make such reductions
in the Exercise Price, in addition to those adjustments expressly required by
this Section 11, as and to the extent that it in its sole discretion shall
determine to be advisable in order that any (i) consolidation or subdivision of
the Preferred or Common Shares, (ii) issuance wholly for cash of any Preferred
or Common Shares at less than the current market price, (iii) issuance wholly
for cash of Preferred or Common Shares or securities which by their terms are
convertible into or exchangeable for Preferred or Common Shares, (iv) stock
dividends or (v) issuance of rights, options or warrants referred to in this
Section 11, hereafter made by the Company to holders of its Preferred or Common
Shares shall not be taxable to such stockholders.

          (m) The Company covenants and agrees that, after the Distribution
Date, it will not, except as permitted by Sections 23, 24 or 27 hereof, take (or
permit to be taken) any action if at the time such action is taken it is
reasonably foreseeable that such action will diminish substantially or otherwise
eliminate the benefits intended to be afforded by the Rights.

          (n) In the event the Company shall at any time after the date of this
Agreement (A) declare a dividend on the Common Shares payable in Common Shares,
(B)

                                       20

<PAGE>

subdivide the outstanding Common Shares, (C) combine the outstanding Common
Shares (by reverse stock split or otherwise) into a smaller number of Common
Shares, or (D) issue any shares of its capital stock in a reclassification of
the Common Shares (including any such reclassification in connection with a
consolidation or merger in which the Company is the continuing or surviving
corporation), then, in each such event, except as otherwise provided in this
Section 11(a) and Section 7(e) hereof (1) each Common Share (or shares of
capital stock issued in such reclassification of the Common Shares) outstanding
immediately following such time shall have associated with it the number of
Rights as were associated with one Common Share immediately prior to the
occurrence of the event described in clauses (A)-(D) above; (2) the Exercise
Price in effect at the time of the record date for such dividend or of the
effective date of such subdivision, combination or reclassification shall be
adjusted so that the Exercise Price thereafter shall equal the result obtained
by multiplying the Exercise Price in effect immediately prior to such time by a
fraction, the numerator of which shall be the total number of Common Shares
outstanding immediately prior to the event described in clauses (A)-(D) above,
and the denominator of which shall be the total number of Common Shares
outstanding immediately after such event; provided, however, that in no event
                                          --------  -------
shall the consideration to be paid upon the exercise of one Right be less than
the aggregate par value of the shares of capital stock of the Company issuable
upon exercise of such Right; and (3) the number of one-thousandths of a
Preferred Share (or shares of such other capital stock) issuable upon the
exercise of each Right outstanding after such event shall equal the number of
one-thousandths of a Preferred Share (or shares of such other capital stock) as
were issuable with respect to one Right immediately prior to such event. Each
Common Share that shall become outstanding after an adjustment has been made
pursuant to this Section 11(n) shall have associated with it the number of
Rights, exercisable at the Exercise Price and for the number of one-thousandths
of a Preferred Share (or shares of such other capital stock) as one Common Share
has associated with it immediately following the adjustment made pursuant to
this Section 11(n). If an event occurs which would require an adjustment under
both this Section 11(n) and Section 11(a)(ii) hereof, the adjustment provided
for in this Section 11(n) shall be in addition to, and shall be made prior to,
any adjustment required pursuant to Section 11(a)(ii) hereof.

     Section 12. Certificate of Adjusted Exercise Price or Number of Shares.
                 ----------------------------------------------------------
Whenever an adjustment is made as provided in Sections 11 and 13 hereof, the
Company shall promptly (a) prepare a certificate setting forth such adjustment
and a brief statement of the facts accounting for such adjustment, (b) file with
the Rights Agent and with each transfer agent for the Preferred Shares a copy of
such certificate and (c) mail a brief summary thereof to each holder of a Rights
Certificate in accordance with Section 26 hereof. Notwithstanding the foregoing
sentence, the failure of the Company to make such certification or give such
notice shall not affect the validity of such adjustment or the force or effect
of the requirement for such adjustment. The Rights Agent shall be fully
protected in relying on any such certificate and on any adjustment contained
therein and shall not be deemed to have knowledge of such adjustment unless and
until it shall have received such certificate,

     Section 13. Consolidation, Merger or Sale or Transfer of Assets or Earning
                 --------------------------------------------------------------
Power.
-----

          (a)    In the event that, following a Triggering Event, directly or
                 indirectly;

                                       21

<PAGE>

               (i)   the Company shall consolidate with, or merge with and into,
any other Person (other than a wholly owned Subsidiary of the Company in a
transaction the principal purpose of which is to change the state of
incorporation of the Company and which complies with Section 11(m) hereof);

               (ii)  any Person shall consolidate with the Company, or merge
with and into the Company and the Company shall be the continuing or surviving
corporation of such consolidation or merger and, in connection with such merger,
all or part of the Common Shares shall be changed into or exchanged for stock or
other securities of any other person (or the Company); or

               (iii) the Company shall sell or otherwise transfer (or one or
more of its Subsidiaries shall sell or otherwise transfer), in one or more
transactions, assets or earning power aggregating 50% or more of the assets or
earning power of the Company and its Subsidiaries (taken as a whole) to any
other Person or Persons (other than the Company or one or more of its wholly
owned Subsidiaries in one or more transactions, each of which individually (and
together) complies with Section 11(m) hereof),

                     then, concurrent with and in each such case,

                     (A) each holder of a Right (except as provided in Section
                     7(e) hereof) shall thereafter have the right to receive,
                     upon the exercise thereof at a price equal to the Total
                     Exercise Price applicable immediately prior to the
                     occurrence of the Section 13 Event in accordance with the
                     terms of this Agreement, such number of validly authorized
                     and issued, fully paid, nonassessable and freely tradeable
                     Common Shares of the Principal Party (as hereinafter
                     defined), free of any liens, encumbrances, rights of first
                     refusal or other adverse claims, as shall be equal to the
                     result obtained by dividing such Total Exercise Price by
                     50% of the Current Per Share Market Price of the Common
                     Shares of such Principal Party or the date of consummation
                     of such Section 13 Event, provided, however, that the
                                               --------  -------
                     Exercise Price and the number of Common Shares of such
                     Principal Party so receivable upon exercise of a Right
                     shall be subject to further adjustment as appropriate in
                     accordance with Section 11(e) hereof,

                     (B) such Principal Party shall thereafter be liable for,
                     and shall assume, by virtue of such Section 13 Event, all
                     the obligations and duties of the Company pursuant to this
                     Agreement;

                     (C) the term "Company" shall thereafter be deemed to refer
                     to such Principal Party, it being specifically intended
                     that the provisions of Section 11 hereof shall apply only
                     to such Principal Party following the first occurrence of a
                     Section 13 Event;

                                       22

<PAGE>

                     (D) such Principal Party shall take such steps (including,
                     but not limited to, the reservation of a sufficient number
                     of its Common Shares) in connection with the consummation
                     of any such transaction as may be necessary to ensure that
                     the provisions hereof shall thereafter be applicable, as
                     nearly as reasonably may be, in relation to its Common
                     Shares thereafter deliverable upon the exercise of the
                     Rights; and

                     (E) upon the subsequent occurrence of any consolidation,
                     merger, sale or transfer of assets or other extraordinary
                     transaction in respect of such Principal Party, each holder
                     of a Right shall thereupon be entitled to receive, upon
                     exercise of a Right and payment of the Total Exercise Price
                     as provided in this Section 13(a), such cash, shares,
                     rights, warrants and other property which such holder would
                     have been entitled to receive had such holder, at the time
                     of such transaction, owned the Common Shares of the
                     Principal Party receivable upon the exercise of such Right
                     pursuant to this Section 13(a), and such Principal Party
                     shall take such steps (including, but not limited to,
                     reservation of shares of stock) as may be necessary to
                     permit the subsequent exercise of the Rights in accordance
                     with the terms hereof for such cash, shares, rights,
                     warrants and other property.

                     (F) For purposes hereto, the "earning power" of the Company
                     and its Subsidiaries shall be determined in good faith by
                     the Company's Board of Directors on the basis of the
                     operating earnings of each business operated by the Company
                     and its Subsidiaries during the three fiscal years
                     preceding the date of such determination (or, in the case
                     of any business not operated by the Company or any
                     Subsidiary during three full fiscal years preceding such
                     date, during the period such business was operated by the
                     Company or any Subsidiary).

          (b)  For purposes of this Agreement, the term "Principal Party" shall
mean:

               (i)   in the case of any transaction described in clause (i) or
(ii) of Section 13(a) hereof: (A) the Person that is the issuer of the
securities into which the Common Shares are converted in such merger or
consolidation, or, if there is more than one such issuer, the issuer the Common
Shares of which have the greatest aggregate market value of shares outstanding,
or (B) if no securities are so issued, (x) the Person that is the other party to
the merger, if such Person survives said merger, or, if there is more than one
such Person, the Person the Common Shares of which have the greatest aggregate
market value of shares outstanding or (y) if the Person that is the other party
to the merger does not survive the merger, the Person that does survive the
merger (including the Company if it survives) or (z) the Person resulting from
the consolidation; and

                                       23

<PAGE>

               (ii)  in the case of any transaction described in clause (iii) of
Section 13(a) hereof; the Person that is the party receiving the greatest
portion of the assets or earning power transferred pursuant to such transaction
or transactions, or, if more than one Person that is a party to such transaction
or transactions receives the same portion of the assets or earning power so
transferred and each such portion would, were it not for the other equal
portions, constitute the greatest portion of the assets or earning power so
transferred, or if the Person receiving the greatest portion of the assets or
earning power cannot be determined, whichever of such Persons is the issuer of
Common Shares having the greatest aggregate market value of shares outstanding;

provided, however, that in any such case described in the foregoing clause
--------  -------
(b)(i) or (b)(ii), if the Common Shares of such Person are not at such time or
have not been continuously over the preceding 12-month period registered under
Section 12 of the Exchange Act, then (1) if such Person is a direct or indirect
Subsidiary of another Person the Common Shares of which are and have been so
registered, the term "Principal Party" shall refer to such other Person, or (2)
if such Person is a Subsidiary, directly or indirectly, of more than one Person,
the Common Shares of which are and have been so registered, the term "Principal
Party" shall refer to whichever of such Persons is the issuer of Common Shares
having the greatest aggregate market value of shares outstanding, or (3) if such
Person is owned, directly or indirectly, by a joint venture formed by two or
more Persons that are not owned, directly or indirectly by the same Person, the
rules set forth in clauses (1) and (2) above shall apply to each of the owners
having an interest in the venture as if the Person owned by the joint venture
was a Subsidiary of both or all of such joint venturers, and the Principal Party
in each such case shall bear the obligations set forth in this Section 13 in the
same ratio as its interest in such Person bears to the total of such interests,

          (c)  The Company shall not consummate any Section 13 Event unless the
Principal Party shall have a sufficient number of authorized Common Shares that
have not been issued or reserved for issuance to permit the exercise in full of
the Rights in accordance with this Section 13 and unless prior thereto the
Company and such issuer shall have executed and delivered to the Rights Agent a
supplemental agreement confirming that such Principal Party shall, upon
consummation of such Section 13 Event, assume this Agreement in accordance with
Sections 13(a) and 13(b) hereof, that all rights of first refusal or preemptive
rights in respect of the issuance of Common Shares of such Principal Party upon
exercise of outstanding Rights have been waived, that there are no rights,
warrants, instruments or securities outstanding or any agreements or
arrangements which, as a result of the consummation of such transaction, would
eliminate or substantially diminish the benefits intended to be afforded by the
Rights and that such transaction shall not result in a default by such Principal
Party under this Agreement, and further providing that, as soon as practicable
after the date of such Section 13 Event, such Principal Party will:

               (i) prepare and a registration statement under the Securities Act
with respect to the Rights and the securities purchasable upon exercise of the
Rights on an appropriate form, use its best efforts to cause such registration
statement to become effective as soon as practicable after such filing and use
its best efforts to cause such registration statement to remain effective (with
a prospectus at all times meeting the requirements of the Securities Act) until
the Expiration Date, and similarly comply with applicable state securities laws;

                                       24

<PAGE>

               (ii)  use its best efforts to list (or continue the listing of)
the Rights and the securities purchasable upon exercise of the Rights on a
national securities exchange or to meet the eligibility requirements for
quotation on Nasdaq and list (or continue the listing of) the Rights and the
securities purchasable upon exercise of the Rights on Nasdaq; and

               (iii) deliver to holders of the Rights historical financial
statements for such Principal Party which comply in all respects with the
requirements for registration on Form 10 (or any successor form) under the
Exchange Act.

         In the event that at any time after the occurrence of a Triggering
Event some or all of the Rights shall not have been exercised at the time of a
transaction described in this Section 13, the Rights which have not theretofore
been exercised shall thereafter be exercisable in the manner described in
Section 13(a) (without taking into account any prior adjustment required by
Section 11(a)(ii)).

          (d)  In case the "Principal Party" for purposes of Section 13(b)
hereof has provision in any of its authorized securities or in its certificate
of incorporation or by-laws or other instrument governing its corporate affairs,
which provision would have the effect of (i) causing such Principal Party to
issue (other than to holders of Rights pursuant to Section 13 hereof), in
connection with, or as a consequence of, the consummation of a Section 13 Event,
Common Shares or Equivalent Shares of such Principal Party at less than the then
Current Per Share Market Price thereof or securities exercisable for, or
convertible into, Common Shares or Equivalent Shares of such Principal Party at
less than such then Current Per Share Market Price, or (ii) providing for any
special payment, tax or similar provision in connection with the issuance of the
Common Shares of such Principal Party pursuant to the provisions of Section 13
hereof, then, in such event, the Company hereby agrees with each holder of
Rights that it shall not consummate any such transaction unless prior thereto
the Company and such Principal Party shah have executed and delivered to the
Rights Agent a supplemental agreement providing that the provision in question
of such Principal Party shall have been canceled, waived or amended, or that the
authorized securities shall be redeemed, so that the applicable provision will
have no effect in connection with or as a consequence of, the consummation of
the proposed transaction.

          (e)  The Company covenants and agrees that it shall not, at any time
after the Distribution Date, effect or permit to occur any Section 13 Event, if
(i) at the time or immediately after such Section 13 Event there are any rights,
warrants or other instruments or securities outstanding or agreements in effect
which would substantially diminish or otherwise eliminate the benefits intended
to be afforded by the Rights, (ii) prior to, simultaneously with or immediately
after such Section 13 Event, the stockholders of the Person who constitutes, or
would constitute, the "Principal Party" for purposes of Section 13(b) hereof
shall have received a distribution of Rights previously owned by such Person or
any of its Affiliates or Associates or (iii) the form or nature of organization
of the Principal Party would preclude or limit the exercisability of the Rights.

          (f)  Notwithstanding anything in this Agreement to the contrary,
Section 13 shall not be applicable to a transaction described in clauses (i) and
(ii) of Section 13(a) if: (i) such transaction is consummated with a Person or
Persons who acquired Common Shares pursuant to a Permitted Offer (or a
wholly-owned Subsidiary of any such Person or Persons);

                                       25

<PAGE>

(ii) the price per share of Common Shares offered in such transaction is not
less than the price per share of Common Shares paid to all holders of Common
Shares whose shares were purchased pursuant to such Permitted Offer; and (iii)
the form of consideration being offered to the remaining holders of Common
Shares pursuant to such transaction is the same form as the form of
consideration paid pursuant to such Permitted Offer. Upon consummation of any
such transaction contemplated by this Section l3(f), all Rights hereunder shall
expire.

          (g) The provisions of this Section 13 shall similarly apply to
successive mergers or consolidations or sales or other transfers.

     Section 14. Fractional Rights and Fractional Shares.
                 ---------------------------------------

          (a) The Company shall not be required to issue fractions of Rights or
to distribute Rights Certificates which evidence fractional Rights. In lieu of
such fractional Rights, there shall be paid to the registered holders of the
Rights Certificates with regard to which such fractional Rights would otherwise
be issuable, an amount in cash equal to the same fraction of the current market
value of a whole Right. For the purposes of this Section 14(a), the current
market value of a whole Right shall be the closing price of the Rights for the
Trading Day immediately prior to the date on which such fractional Rights would
have been otherwise issuable, as determined pursuant to the second sentence of
Section 1(k) hereof.

          (b) The Company shall not be required to issue fractions of Preferred
Shares (other than fractions that are integral multiples of one one-thousandth
of a Preferred Share) upon exercise of the Rights or to distribute certificates
which evidence fractional Preferred Shares (other than fractions that are
integral multiples of one one-thousandth of a Preferred Share). Interests in
fractions of Preferred Shares in integral multiples of one one-thousandth of a
Preferred Share may, at the election of the Company, be evidenced by depositary
receipts, pursuant to an appropriate agreement between the Company and a
depositary selected by it, that such agreement shall provide that the holders of
such depositary receipts shall have all the rights, privileges and preferences
to which they are entitled as beneficial owners of the Preferred Shares
represented by such depositary receipts. In lieu of fractional Preferred Shares
that are not integral multiples of one one-thousandth of a Preferred Share, the
Company shall pay to the registered holders of Rights Certificates at the time
such Rights are exercised as herein provided an amount in cash equal to the same
fraction of the current market value of a Preferred Share. For purposes of this
Section 14(b), the current market value of a Preferred Share shall be one
thousand times the closing price of a Common Share (as determined pursuant to
the second sentence of Section 1(k) hereof) for the Trading Day immediately
prior to the date of such exercise.

          (c) The Company shall not be required to issue fractions of Common
Shares or to distribute certificates which evidence fractional Common Shares
upon the exercise or exchange of Rights. In lieu of such fractional Common
Shares, the Company shall pay to the registered holders of Rights Certificates
at the time such Rights are exercised as herein provided an amount in cash equal
to the same fraction of the current market value of a Common Share. For purposes
of this Section 14(c), the current market value of a Common Share shall be the
closing price of a Common Share (as determined pursuant to the second sentence
of Section 1(k) hereof), for the Trading Day immediately prior to the date of
such exercise.

                                       26

<PAGE>

          (d) The holder of a Right by the acceptance of the Right expressly
waives his or her right to receive any fractional Rights or any fractional
shares (other than fractions, that are integral multiples of one one-thousandth
of a Preferred Share) upon exercise of a Right.

     Section 15. Rights of Action. All rights of action in respect of this
                 ----------------
Agreement, excepting the rights of action given to the Rights Agent under
Section 18 hereof, are vested in the respective registered holders of the Rights
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Shares), and any registered holder of any Rights Certificate (or, prior
to the Distribution Date, of the Common Shares), without the consent of the
Rights Agent or of the holder of any other Rights Certificate (or, prior to the
Distribution Date, of the Common Shares), may, in his or her own behalf and for
his or her own benefit, enforce, and may institute and maintain any suit, action
or proceeding against the Company to enforce, or otherwise act in respect of his
or her right to exercise the Rights evidenced by such Rights Certificate in the
manner provided in such Rights Certificate and in this Agreement. Without
limiting the foregoing or any remedies available to the holders of Rights, it is
specifically acknowledged that the holders of Rights would not have an adequate
remedy at law for any breach of this Agreement and will be entitled to specific
performance of the obligations under, and injunctive relief against actual or
threatened violations of, the obligations of any Person subject to this
Agreement.

     Section 16. Agreement of Rights Holders. Every holder of a Right, by
                 ---------------------------
accepting the same, consents and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

          (a) prior to the Distribution Date, the Rights will be transferable
only in connection with the transfer of the Common Shares;

          (b) after the Distribution Date; the Rights Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the principal office or offices of the Rights Agent designated for such purposes
duly endorsed or accompanied by a proper instrument of transfer and with the
appropriate forms and certificates fully executed; and

          (c) subject to Sections 6(a) and 7(t) hereof, the Company and the
Rights Agent may deem and treat the person in whose name the Rights Certificate
(or, prior to the Distribution Date, the associated Common Shares certificate)
is registered as the absolute owner thereof and of the Rights evidenced thereby
(notwithstanding any notations of ownership or writing on the Rights
Certificates or the associated Common Shares certificate made by anyone other
than the Company or the Rights Agent) for all purposes whatsoever, and neither
the Company nor the Rights Agent shall be affected by any notice to the
contrary.

     Section 17. Rights Certificate Holder Not Deemed a Stockholder. No holder,
                 --------------------------------------------------
as such, of any Rights Certificate shall be entitled to vote, receive dividends
or be deemed for any purpose to be the holder of the Preferred Shares or any
other securities of the Company which may at any time be issuable on the
exercise of the Rights represented thereby, nor shall anything contained herein
or in any Rights Certificate be construed to confer upon the holder of any
Rights Certificate, as such, any of the rights of a stockholder at the Company
or any right to vote for the election of directors or upon any matter submitted
to stockholders at any meeting thereof,

                                       27

<PAGE>

or to give or withhold consent to any corporate action, or to receive notice of
meetings or other actions affecting stockholders (except as provided in Section
25 hereof), or to receive dividends or subscription rights, or otherwise, until
the Right or Rights evidenced by such Rights Certificate shall have been
exercised in accordance with the provisions hereof.

     Section 18. Concerning the Rights Agent.
                 ---------------------------

          (a) The Company agrees to pay to the Rights Agent reasonable
compensation for all services rendered by it hereunder and, from time to time,
on demand of the Rights Agent, its reasonable expenses and counsel fees and
other disbursements incurred in the administration and execution of this
Agreement and the exercise and performance of its duties hereunder. The Company
also agrees to indemnify the Rights Agent for, and to hold it harmless against,
any loss, liability or expense, incurred without negligence, bad faith or
willful misconduct on the part of the Rights Agent, for anything done or omitted
by the Rights Agent in connection with the acceptance and administration of this
Agreement, including the costs and expenses of defending against any claim of
liability in the premises. In no event will the Rights Agent be liable for
special, indirect, incidental or consequential loss or damage of any kind
whatsoever, even if the Rights Agent has been advised of the possibility of such
loss or damage.

          (b) The Rights Agent shall be protected and shall incur no liability
for, or in respect of any action taken, suffered or omitted by it in connection
with, its administration of this Agreement in reliance upon any Rights
Certificate or certificate for the Preferred Shares or Common Shares or for
other securities of the Company, instrument of assignment or transfer, power of
attorney, endorsement, affidavit, letter, notice, direction, consent,
certificate, statement or other paper or document reasonably believed by it to
be genuine and to be signed, executed and, where necessary, verified or
acknowledged, by the proper Person or Persons, or otherwise upon the advice of
counsel as set forth in Section 20 hereof.

     Section 19. Merger or Consolidation or Change of Name of Rights Agent.
                 ---------------------------------------------------------

          (a) Any corporation into which the Rights Agent or any successor
Rights Agent may be merged or with which it may be consolidated, or any
corporation resulting from any merger or consolidation to which the Rights Agent
or any successor Rights Agent shall be a party, or any corporation succeeding to
the corporate trust business of the Rights Agent or any successor Rights Agent,
shall be the successor to the Rights Agent under this Agreement without the
execution or filing of any paper or any further act on the part of any of the
parties hereto; provided, however, that such corporation would be eligible for
                -----------------
appointment as a successor Rights Agent under the provisions of Section 21
hereof. In case at the time such successor Rights Agent shall succeed to the
agency created by this Agreement, any of the Rights Certificates shall have been
countersigned but not delivered, any such successor Rights Agent may adopt the
countersignature of the predecessor Rights Agent and deliver such Rights
Certificates so countersigned, and in case at that time any of the Rights
Certificates shall not have been countersigned, any successor Rights Agent may
countersign such Rights Certificates either in the name of the predecessor
Rights Agent or in the name of the successor Rights Agent, and in all such cases
such Rights Certificates shall have the full force provided in the Rights
Certificates and in this Agreement,

                                       28

<PAGE>

          (b) In case at any time the name of the Rights Agent shall be changed
and at such time any of the Rights Certificates shall have been countersigned
but not delivered, the Rights Agent may adopt the countersignature under its
prior name and deliver Rights Certificates so countersigned; and in case at that
time any of the Rights Certificates shall not have been countersigned, the
Rights Agent may countersign such Rights Certificates either in its prior name
or in its changed name; and in all such cases such Rights Certificates shall
have the full force provided in the Rights Certificates and in this Agreement.

     Section 20. Duties of Rights Agent. The Rights Agent undertakes the duties
                 ----------------------
and obligations imposed by this Agreement upon the following terms and
conditions, by all of which the Company and the holders of Rights Certificates,
by their acceptance thereof, shall be bound:

          (a) The Rights Agent may consult with legal counsel (who may be legal
counsel for the Company), and the written advice or opinion of such counsel
shall be full and complete authorization and protection to the Rights Agent as
to any action taken or omitted by it in good faith and in accordance with such
written advice or opinion.

          (b) Whenever in the performance of its duties under this Agreement the
Rights Agent shall deem it necessary or desirable that any fact or matter
(including, without limitation, the identity of any Acquiring Person and the
determination of Current Per Share Market Price) be proved or established by the
Company prior to taking or suffering any action hereunder, such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed to be conclusively proved and established by a certificate signed by
any one of the Chairman of the Board, the Chief Executive Officer, the
President, any Vice President, the Chief Financial Officer, the Secretary or any
Assistant Secretary of the Company and delivered to the Rights Agent, and such
certificate shall be full authorization to the Rights Agent for any action taken
or suffered in good faith by it under the provisions of this Agreement in
reliance upon such certificate.

          (c) The Rights Agent shall be liable hereunder to the Company and any
other Person only for its own negligent, bad faith or willful misconduct.

          (d) The Rights Agent shall not be liable for or by reason of any of
the statements of fact or recitals contained in this Agreement or in the Rights
Certificates (except its countersignature thereof) or be required to verify the
same, but all such statements and recitals are and shall be deemed to have been
made by the Company only.

          (e) The Rights Agent shall not be under any responsibility in respect
of the validity of this Agreement or the execution and delivery hereof (except
the due execution hereof by the Rights Agent) or in respect of the validity or
execution of any Rights Certificate (except its countersignature thereof), nor
shall it be responsible for any breach by the Company of any covenant or
condition contained in this Agreement or in any Rights Certificate, nor shall it
be responsible for any change in the exercisability of the Rights or any
adjustment in the terms of the Rights (including the manner, method or amount
thereof) provided for in Sections 3, 11, 13, 23 or 24, or the ascertaining of
the existence of facts that would require any such change or adjustment (except
with respect to the exercise of Rights evidenced by Rights Certificates after
receipt by the Rights Agent of a certificate furnished pursuant to Section 12
describing such

                                       29

<PAGE>

change or adjustment), nor shall it by any act hereunder be denied to make any
representation or warranty as to the authorization or reservation of any
Preferred Shares to be issued pursuant to this Agreement or any Rights
Certificate or as to whether any Preferred Shares will, when issued, be validly
authorized and issued, fully paid and nonassessable.

          (f) The Company agrees that it will perform, execute, acknowledge and
deliver or cause to be performed, executed, acknowledged and delivered all, such
further and other acts, instruments and assurances as may reasonably be required
by the Rights Agent for the carrying out or performing by the Rights Agent of
the provisions of this Agreement.

          (g) The Rights Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from any
one of the Chairman of the Board, the Chief Executive Officer, the President,
any Vice President, the Chief Financial Officer, the Secretary or any Assistant
Secretary of the Company, and to apply to such officers for advice or
instructions in connection with its duties, and it shall not be liable for any
action taken or suffered by it in good faith in accordance with instructions of
any such officer or for any delay in acting while waiting for those
instructions. Any application by the Rights Agent for written instructions from
the Company may, at the option of the Rights Agent, set forth in writing any
action proposed to be taken or omitted by the Rights Agent under this Rights
Agreement and the date on and/or after which such action shall be taken or such
omission shall be effective. The Rights Agent shall not be liable for any action
taken by, or omission of, the Rights Agent in accordance with a proposal
included in any such application on or after the date specified in such
application (which date shall not be less than five (5) Business Days after the
date any officer of the Company actually receives such application, unless any
such officer shall have consented in writing to an earlier date) unless, prior
to taking any such action (or the effective date in the case of an omission),
the Rights Agent shall have received written instructions in response to such
application specifying the action to be taken or omitted.

          (h) The Rights Agent and any stockholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or other
securities of the Company or become pecuniary interested in any transaction in
which the Company may be interested, or contract with or tend money to the
Company or otherwise act as fully and freely as though it were not Rights Agent
under this Agreement. Nothing herein shall preclude the Rights Agent from acting
in any other capacity for the Company or for any other legal entity.

          (i) The Rights Agent may execute and exercise any of the rights or
powers hereby vested in it or perform any duty hereunder either itself or by or
through its attorneys or agents, and the Rights Agent shall not be answerable or
accountable for any act, default, neglect or misconduct of any such attorneys or
agents or for any loss to the Company resulting from any such act, default,
neglect or misconduct, provided reasonable care was exercised in the selection
and continued employment thereof

          (j) No provision of this Agreement shall require the Rights Agent to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder or in the exercise of its rights if
there shall be reasonable grounds for believing that repayment of such funds or
adequate indemnification against such risk or liability is not reasonably
assured to it.

                                       30

<PAGE>

            (k) If, with respect to any Rights Certificate surrendered to the
Rights Agent for exercise or transfer, the certificate attached to the form of
assignment or form of election to purchase, as the case may be, has either not
been completed or indicates an affirmative response to clause 1 and/or 2
thereof, the Rights Agent shall not take any further action with respect to such
requested exercise or transfer without first consulting with the Company.

     Section 21. Change of Rights Agent. The Rights Agent or any successor
                 ----------------------
Rights Agent may resign and be discharged from its duties under this Agreement
upon thirty (30) days' notice in writing mailed to the Company and to each
transfer agent of the Preferred Shares and the Common Shares by registered or
certified mail, and to the holders of the Rights Certificates by first-class
mail, the Company may remove the Rights Agent or any successor Rights Agent upon
thirty (30) days' notice in writing, mailed to the Rights Agent or successor
Rights Agent, as the case may be, and to each transfer agent of the Preferred
Shares and the Common Shares by registered or certified mail, and to the holders
of the Rights Certificates by first-class mail. If the Rights Agent shall resign
or be removed or shall otherwise become incapable of acting, the Company shall
appoint a successor to the Rights Agent. If the Company shall fail to make such
appointment within a period of thirty (30) days after giving notice of such
removal or after it has been notified in writing of such resignation or
incapacity by the resigning or incapacitated Rights Agent or by the holder of a
Rights Certificate (who shall, with such notice, submit his or her Rights
Certificate for inspection by the Company), then the registered holder of any
Rights Certificate may apply to any court of competent jurisdiction for the
appointment of a new Rights Agent. Any successor Rights Agent, whether appointed
by the Company or by such a court, shall be a corporation organized and doing
business under the laws of the United States or of any state of the United
States, in good standing, which is authorized under such laws to exercise
corporate trust or stockholder services powers and is subject to supervision or
examination by federal or state authority and which has at the time of its
appointment as Rights Agent a combined capital and surplus of at least $100
million. After appointment, the successor Rights Agent shall be vested with the
same powers, rights, duties and responsibilities as if it had been originally
named as Rights Agent without further act or deed, but the predecessor Rights
Agent shall deliver and transfer to the successor Rights Agent any property at
the time held by it hereunder, and execute and deliver any further assurance,
conveyance, act or deed necessary for the purpose. Not later than the effective
date of any such appointment, the Company shall file notice thereof in writing
with the predecessor Rights Agent and each transfer agent of the Preferred
Shares and the Common Shares, and mail a notice thereof in writing to the
registered holders of the Rights Certificates. Failure to give any notice
provided for in this Section 21, however, or any defect therein, shall not
affect the legality or validity of the resignation or removal of the Rights
Agent or the appointment of the successor Rights Agent, as the case may be.

     Section 22. Issuance of New Rights Certificates. Notwithstanding any of the
                 -----------------------------------
provisions of this Agreement or of the Rights to the contrary, the Company may,
at its option, issue new Rights Certificates evidencing Rights in such form as
may be approved by its Board of Directors to reflect any adjustment or change in
the Exercise Price and the number or kind or class of shares or other securities
or property purchasable under the Rights Certificates made in accordance with
the provisions of this Agreement. In addition, in connection with the issuance
or sale of Common Shares following the Distribution Date and prior to the
redemption or expiration of the Rights, the Company (a) shall, with respect to
Common Shares so issued or sold pursuant to the exercise of stock options or
under any employee plan or arrangement or upon the

                                       31

<PAGE>

exercise, conversion or exchange of other securities of the Company outstanding
at the date hereof or upon the exercise, conversion or exchange of securities
hereinafter issued by the Company and (b) may, in any other case, if deemed
necessary or appropriate by the Board of Directors of the Company, issue Rights
Certificates representing the appropriate number of Rights in connection with
such issuance or sale; provided, however, that (i) no such Rights Certificate
                       --------- -------
shall be issued and this sentence shall be null and void ab initio if, and to
                                                         ---------
the extent that, such issuance or this sentence would create a significant risk
of or result in material adverse tax consequences to the Company or the Person
to whom such Rights Certificate would be issued or would create a significant
risk of or result in such options or employee plans or arrangements failing to
qualify for otherwise available special tax treatment and (ii) no such Rights
Certificate shall be issued it; and to the extent that, appropriate adjustment
shall otherwise have been made in lieu of the issuance thereof.

     Section 23.   Redemption.
                   ----------

                   (a)   The Company may, at its option and with the approval of
the Board of Directors, at any time prior to the Close of Business on the
earlier of (i) the tenth day following the Shares Acquisition Date (or such
later date as may be determined by the Board of Directors of the Company and
publicly announced by the Company) and (ii) the Final Expiration Date, redeem
all but not less than all the then outstanding Rights at a redemption price of
$.001 per Right, appropriately adjusted to reflect any stock split, stock
dividend or similar transaction occurring after the date hereto (such redemption
price being herein referred to as the "Redemption Price") and the Company may,
at its option, pay the Redemption Price either in Common Shares (based on the
Current Per Share Market Price thereof at the time of redemption) or cash. Such
redemption of the Rights by the Company may be made effective at such time, on
such basis and with such conditions as the Board of Directors in its sole
discretion may establish. The date on which the Board of Directors elects to
make the redemption effective shall be referred to as the "Redemption Date."

                   (b)   Immediately upon the action of the Board of Directors
of the Company ordering the redemption of the Rights, evidence of which shall
have been filed with the Rights Agent, and without any further action and
without any notice, the right to exercise the Rights will terminate and the only
right thereafter of the holders to Rights shall be to receive the Redemption
Price. The Company shall promptly give public notice of any such redemption;
provided, however, that the failure to give or any defect in, any such notice
--------- -------
shall not affect the validity of such redemption. Within ten (10) days after the
action of the Board of Directors of the Company ordering the redemption of the
Rights, the Company shall give notice of such redemption to the Rights Agent and
the holders of the then outstanding Rights by mailing such notice to all such
holders at their last addresses as they appear upon the registry books of the
Rights Agent or, prior to the Distribution Date, on the registry books of the
transfer agent for the Common Shares. Any notice which is mailed in the manner
herein provided shall be deemed given, whether or not the holder receives the
notice. Each such notice of redemption will state the method by which the
payment of the Redemption Price will be made. Neither the Company nor any of its
Affiliates or Associates may redeem, acquire or purchase for value any Rights at
any time in any manner other than that specifically set forth in this Section 23
or in Section 24 hereof, and other than in connection with the purchase of
Common Shares prior to the Distribution Date.

                                       32

<PAGE>

        Section 24.      Exchange.
                         --------

                (a)      Subject to applicable laws, rules and regulations, and
subject to subsection 24(c) below, the Company may, at its option, by majority
vote of the Board of Directors, at any time after the occurrence of a Triggering
Event, exchange shall or part of the then outstanding and exercisable Rights
(which shall not include Rights that have become void pursuant to the provisions
of Section 7(e) hereof) for Common Shares at an exchange ratio of one Common
Share per Right, appropriately adjusted to reflect any stock split, stock
dividend or similar transaction occurring after the date hereof (such exchange
ratio being hereinafter referred to as the "Exchange Ratio"). Notwithstanding
the foregoing, the Board of Directors shall not be empowered to effect such
exchange at any time after any Person (other than the Company, any Subsidiary of
the Company, any employee benefit plan of the Company or any such Subsidiary, or
any entity holding Common Shares for or pursuant to the terms of any such plan),
together with all Affiliates and Associates of such Person, becomes the
Beneficial Owner of 50% or more of the Common Shares then outstanding.

                (b)      Immediately upon the action of the Board of Directors
ordering the exchange of any Rights pursuant to Section 24(a) and without any
further action and without any notice, the right to exercise such Rights shall
terminate and the only right thereafter of a holder of such Rights shall be to
receive that number of Common Shares equal to the number of such Rights held by
such holder multiplied by the Exchange Ratio. The Company shall give public
notice to any such exchange; provided, however, that the failure to give, or any
                             --------  -------
defect in, such notice shall not affect the validity of such exchange. The
Company shall mail a notice of any such exchange to all of the holders of such
Rights at their last addresses as they appear upon the registry books of the
Rights Agent. Any notice which is mailed in the manner herein provided shall be
deemed given, whether or not the holder receives the notice. Each such notice of
exchange will state the method by which the exchange of the Common Shares for
Rights will be effected and, in the event of any partial exchange, the number of
Rights which will be exchanged. Any partial exchange shall be effected pro rata
based on the number of Rights (other than Rights which have become void pursuant
to the provisions of Section 7(e) hereof) held by each holder of Rights.

                (c)      In the event that there shall not be sufficient Common
Shares issued but not outstanding or authorized but unissued to permit any
exchange of Rights as contemplated in accordance with Section 24(a), the Company
shall either take such action as may be necessary to authorize additional Common
Shares for issuance upon exchange of the Rights or alternatively, at the option
of a majority of the Board of Directors of the Company, with respect to each
Right (i) pay cash in an amount equal to the Current Value (as hereinafter
defined), in lieu of issuing Common Shares in exchange therefor, or (ii) issue
debt or equity securities or a combination thereof, having a value equal to the
Current Value, in lieu of issuing Common Shares in exchange for each such Right,
where the value of such securities shall be determined by a nationally
recognized investment banking firm selected by majority vote of the Board of
Directors of the Company, or (iii) deliver any combination of cash, property,
Common Shares and/or other securities having a value equal to the Current Value
in exchange for each Right. For purposes of this Section 24(c) only, the Current
Value shall mean the product of the Current Per Share Market Price of Common
Shares on the date of the occurrence of the event described above in
subparagraph (a), multiplied by the number of Common Shares for which the Right

                                       33

<PAGE>

otherwise would be exchangeable if there were sufficient shares available. To
the extent that the Company determines that some action need be taken pursuant
to clauses (i), (ii) or (iii) of this Section 24(c), the Board of Directors of
the Company may temporarily suspend the exercisability of the Rights for a
period of up to sixty (60) days following the date on which the event described
in Section 24(a) shall have occurred, in order to seek any authorization of
additional Common Shares and/or to decide the appropriate form of distribution
to be made pursuant to the above provision and to determine the value thereof.
In the event of any such suspension, the Company shall issue a public
announcement stating that the exercisability of the Rights has been temporarily
suspended.

            (d) The Company shall not be required to issue fractions of Common
Shares or to distribute certificates which evidence fractional Common Shares. In
lieu of such fractional Common Shares, there shall be paid to the registered
holders of the Rights Certificates with regard to which such fractional Common
Shares would otherwise be issuable, an amount in cash equal to the same fraction
of the current market value of a whole Common Share (as determined pursuant to
the second sentence of Section 1(k) hereof).

            (e) The Company may, at its option, by majority vote of the Board of
Directors of the Company, at any time before any Person has become an Acquiring
Person, exchange all or part of the then outstanding Rights for rights of
substantially equivalent value, as determined reasonably and with good faith by
the Board of Directors of the Company, based upon the advice of one or more
nationally recognized investment banking firms.

            (f) Immediately upon the action of the Board of Directors of the
Company ordering the exchange of any Rights pursuant to Section 24(e) and
without any further action and without any notice, the right to exercise such
Rights shall terminate and the only right thereafter of a holder of such Rights
shall be to receive that number of rights in exchange therefor as has been
determined by the Board of Directors in accordance with subsection 24(e) above.
The Company shall give public notice of any such exchange; provided, however,
                                                           --------- -------
that the failure to give, or any defect in, such notice shall not affect the
validity of such exchange. The Company shall mail a notice of any such exchange
to all at the holders of such Rights at their last addresses as they appear upon
the registry books of the transfer agent for the Common Shares of the Company.
Any notice which is mailed in the manner herein provided shall be deemed given,
whether or not the holder receives the notice. Each such notice of exchange will
state the method by which the exchange of the Rights will be effected.

    Section 25. Notice of Certain Events.
                ------------------------

            (a) In case the Company shall propose to effect or permit to occur
any Triggering Event or Section 13 Event, the Company shall give notice thereof
to each holder of Rights in accordance with Section 26 hereof at least twenty
(20) days prior to occurrence of such Triggering Event or such Section 13 Event.

            (b) In case any Triggering Event or Section 13 Event shall occur,
then, in any such case, the Company shall as soon as practicable thereafter give
to each holder of a Rights Certificate, in accordance with Section 26 hereof, a
notice of the occurrence of such event,

                                       34

<PAGE>

which shall specify the event and the consequences of the event to holders of
Rights under Sections 11(a)(ii) and 13 hereof.

     Section 26. Notice. Notices or demands authorized by this Agreement to be
                 ------
given or made by the Rights Agent or by the holder of any Rights Certificate to
or on the Company shall be sufficiently given or made if sent by first-class
mail, postage prepaid, addressed (until another address is filed in writing with
the Rights Agent) as follows:

                                    VidaMed, Inc.
                                    46107 Landing Parkway
                                    Fremont, CA 94538
                                    Attention: Chief Financial Officer

                                    with a copy to:

                                    Oppenheimer Wolff & Donnelly LLP
                                    1400 Page Mill Road
                                    Palo Alto, CA 94304
                                    Attention: Tom C. Thomas

Subject to the provisions of Section 21 hereof, any notice or demand authorized
by this Agreement to be given or made by the Company or by the holder of any
Rights Certificate to or on the Rights Agent shall be sufficiently given or made
if sent by first-class mail, postage prepaid, addressed (until another address
is filed in writing with the Company) as follows:

                                    Computershare Trust Company
                                    12039 Alameda Parkway, Suite Z-2
                                    Lakewood, CO 80228
                                    Attention: Corporate Actions

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Rights Certificate shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the registry
books of the Company,

     Section 27. Supplements and Amendments. Prior to the occurrence of a
                 --------------------------
Distribution Date, the Company may supplement or amend this Agreement in any
respect without the approval of any holders of Rights and the Rights Agent
shall, if the Company so directs, execute such supplement or amendment. From and
after the occurrence of a Distribution Date, the Company and the Rights Agent
may from time to time supplement or amend this Agreement without the approval of
any holders of Rights in order to (i) cure any ambiguity, (ii) correct or
supplement any provision contained herein which may be defective or inconsistent
with any other provisions herein, (iii) shorten or lengthen any time period
hereunder or (iv) to change or supplement the provisions hereunder in any manner
that the Company may deem necessary or desirable and that shall not adversely
affect the interests of the holders of Rights (other than an Acquiring Person or
art Affiliate or Associate of an Acquiring Person); provided, this Agreement may
                                                    --------
not be supplemented or amended to lengthen, pursuant to clause (iii) of this
sentence, (A) a time period relating to when the Rights may be redeemed at such
time as the Rights are not then

                                       35

<PAGE>

redeemable or (B) any other time period unless such lengthening is for the
purpose of protecting, enhancing or clarifying the rights of, and/or the
benefits to, the holders of Rights (other than an Acquiring Person or an
Affiliate or Associate of an Acquiring Person). Upon the delivery of a
certificate from an appropriate officer of the Company that states that the
proposed supplement or amendment is in compliance with the terms of this Section
27, the Rights Agent shall execute such supplement or amendment. Prior to the
Distribution Date, the interests of the holders of Rights shall be deemed
coincident with the interests of the holders of Common Shares.

     Section 28. Successors. All the covenants and provisions of this Agreement
                 ----------
by or for the benefit of the Company or the Rights Agent shall bind and inure to
the benefit of their respective successors and assigns hereunder.

     Section 29. Determinations and Actions by the Board of Directors etc. For
                 --------------------------------------------------------
all purposes of this Agreement, any calculation of the number of Common Shares
outstanding at any particular time, including for purposes of determining the
particular percentage of such outstanding Common Shares of which any Person is
the Beneficial Owner, shall be made in accordance with the last sentence of Rule
13d-3(d)(1)(i) of the General Rules and Regulations under the Exchange Act. The
Board of Directors of the Company shall have the exclusive power and authority
to administer this Agreement and to exercise all rights and powers specifically
granted to the Board of Directors of the Company, or the Company, or as may be
necessary or advisable in the administration of this Agreement including,
without limitation, the right and power to (i) interpret the provisions of this
Agreement and (ii) make all determinations deemed necessary or advisable for the
administration of this Agreement (including a determination to redeem or not
redeem the Rights or to amend the Agreement). All such actions, calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
of Directors of the Company in good faith shall (x) be final, conclusive and
binding on the Company, the Rights Agent, the holders of the Rights Certificates
and all other parties and (y) not subject the Board of Directors of the Company
to any liability to the holders of the Rights.

     Section 30. Benefits of this Agreement. Nothing in this Agreement shall be
                 --------------------------
construed to give to any Person other than the Company, the Rights Agent and the
registered holders of the Rights Certificates (and, prior to the Distribution
Date, the Common Shares) any legal or equitable right, remedy or claim under
this Agreement, but this Agreement shall be for the sole and exclusive benefit
of the Company, the Rights Agent and the registered holders of the Rights
Certificates (and, prior to the Distribution Date, the Common Shares).

     Section 31. Severability. If any term, provision, covenant or restriction
                 ------------
of this Agreement is held by a court of competent jurisdiction or other
authority to be invalid, void or unenforceable, the remainder of the terms,
provisions, covenants and restrictions of this Agreement shall remain in full
force and effect and shall in no way be affected, impaired or invalidated;
provided, however, that notwithstanding anything in this Agreement to the
--------  -------
contrary, if any such term, provision, covenant or restriction is held by such
court or authority to be invalid, void or unenforceable and the Board of
Directors of the Company determines in its good faith judgment that severing the
invalid language from this Agreement would adversely affect the purpose or
effect of this Agreement, the right of redemption set forth in Section 23 hereof

                                       36

<PAGE>

shall be reinstated and shall not expire until the Close of Business on the
tenth day following the date of such determination by the Board of Directors.

     Section 32. Governing Law. This Agreement and each Right and each Rights
                 -------------
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of Delaware and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts to
be made and performed entirely within such State.

     Section 33. Counterparts. This Agreement may be executed in any number of
                 ------------
counterparts and each of such counterparts shall for all purposes be deemed to
be an original, and all such counterparts shall together constitute but one and
the same instrument.

     Section 34. Descriptive Headings. Descriptive headings of the several
                 --------------------
Sections of this Agreement are inserted for convenience only and shall not
control or affect the meaning or construction of arty of the provisions hereof.

                                       37

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as of the day and year first above written.

"COMPANY"                                    VIDAMED, INC.

                                             By: /s/ Randy D. Lindholm
                                                 -------------------------------
                                             Name:  Randy D. Lindholm
                                             Title: Chairman, President and
                                                    Chief Executive Officer

"RIGHTS AGENT"                               COMPUTERSHARE TRUST COMPANY

                                             By: /s/ Kellie Gwinn
                                                 -------------------------------
                                             Name:  Kellie Gwinn
                                             Title: Vice President/Trust Officer

                                             By: /s/ Jennifer Owens
                                                 -------------------------------
                                             Name:  Jennifer Owens
                                             Title: Vice President/Trust Officer

                                       38

<PAGE>

                                    EXHIBIT A
                                    ---------

                     CERTIFICATE OF DESIGNATIONS OF RIGHTS,
                          PREFERENCES AND PRIVILEGES OF
                        SERIES A PARTICIPATING PREFERRED
                             STOCK OF VIDAMED, INC.

     The undersigned, James A. Heisch and J. Casey McGlynn, do hereby certify:

     1.   That they are the duly elected and acting President and Secretary,
respectively, of VidaMed, Inc., a Delaware corporation (the "Corporation").

     2.   That pursuant to the authority conferred upon the Board of Directors
by the Certificate of incorporation of the said Corporation, the said Board of
Directors on December 19, 1996 adopted the following resolution creating a
series of 30,000 shares of Preferred Stock designated as Series A Participating
Preferred Stock:

     "RESOLVED, that pursuant to the authority vested in the Board of Directors
of the corporation by the Restated Certificate of Incorporation, the Board of
Directors does hereby provide for the issue of a series of Preferred Stock of
the Corporation and does hereby fix and herein state and express the
designations, powers, preferences and relative and other special rights and the
qualifications, limitations and restrictions of such series of Preferred Stock
as follows:

     Section 1.  Designation and Amount. The shares of such series shall be
                 ----------------------
designated as "Series A Participating Preferred Stock." The Series A
Participating Preferred Stock shall have a par value of $.001 per share, and the
number of shares constituting such series shall be 30,000.

     Section 2.  Proportional Adjustment. In the event the Corporation shall at
                 -----------------------
any time after the issuance of any share or shares of Series A Participating
Preferred Stock (i) declare any dividend on Common Stock of the Corporation
("Common Stock") payable in shares of Common Stock, (ii) subdivide the
outstanding Common Stock or (iii) combine the outstanding Common Stock into a
smaller number of shares, then in each such case the Corporation shall
simultaneously effect a proportional adjustment to the number of outstanding
shares of Series A Participating Preferred Stock.

     Section 3.  Dividends and Distributions.
                 ---------------------------

           (a)   Subject to the prior and superior right of the holders of any
shares of any series of Preferred Stock ranking prior and superior to the shares
of Series A Participating Preferred Stock with respect to dividends, the holders
of shares of Series A Participating Preferred Stock shall be entitled to receive
when, as and if declared by the Board of Directors out of funds legally
available for the purpose, quarterly dividends payable in cash on the last clay
of January, April, July and October in each year (each such date being referred
to herein as a "Quarterly Dividend Payment Date"), commencing on the first
Quarterly Dividend Payment Date after the first issuance of a share or fraction
of a share of Series A Participating Preferred Stock, in an amount per share
(rounded to the nearest cent) equal to 1,000 times the aggregate

                                      A-1

<PAGE>

per share amount of all cash dividends, and 1,000 times the aggregate per share
amount (payable in kind) of all non-cash dividends or other distributions other
than a dividend payable in shares of Common Stock or a subdivision of the
outstanding shares of Con-anon Stock (by reclassification or otherwise),
declared on the Common Stock since the immediately preceding Quarterly Dividend
Payment Date, or, with respect to the first Quarterly Dividend Payment Date,
since the first issuance of any share or fraction of a share of Series A
Participating Preferred Stock.

           (b)   The Corporation shall declare a dividend or distribution on the
Series A Participating Preferred Stock as provided in paragraph (a) above
immediately after it declares a dividend or distribution on the Common Stock
(other than a dividend payable in shares of Common Stock).

           (c)   Dividends shall begin to accrue on outstanding shares of Series
A Participating Preferred Stock from the Quarterly Dividend Payment Date next
preceding the date of issue of such shares of Series A Participating Preferred
Stock, unless the date of issue of such shares is prior to the record date for
the first Quarterly Dividend Payment Date, in which case dividends on such
shares shall begin to accrue from the date of issue of such shares, or unless
the date of issue is a Quarterly Dividend Payment Date or is a date after the
record date for the determination of holders of shares of Series A Participating
Preferred Stock entitled to receive a quarterly dividend and before such
Quarterly Dividend Payment Date in either of which events such dividends shall
begin to accrue from such Quarterly Dividend Payment Date. Accrued but unpaid
dividends shall not bear interest, Dividends paid on the shares of Series A
Participating Preferred Stock in an amount less than the total amount of such
dividends at the time accrued and payable on such shares shall be allocated pro
rata on a share-by-share basis among all such shares at the time outstanding.
The Board of Directors may fix a record date for the determination of holders of
shares of Series A Participating Preferred Stock entitled to receive payment of
a dividend or distribution declared thereon, which record date shall be no more
than 30 days prior to the date fixed for the payment thereof.

     Section 4.  Voting Rights. The holders of shares of Series A Participating
                 -------------
Preferred Stock shall have the following voting rights:

           (a)   Each share of Series A Participating Preferred Stock shall
entitle the holder thereof to 1,000 votes on all matters submitted to a vote of
the stockholders of the Corporation.

           (b)   Except as otherwise provided herein or by law, the holders of
shares of Series A Participating Preferred Stock and the holders of shares of
Common Stock shall vote together as one class on all matters submitted to a vote
of stockholders of the Corporation.

           (c)   Except as required by law, holders of Series A Participating
Preferred Stock shall have no special voting rights and their consent shall not
be required (except to the extent they are entitled to vote with holders of
Common Stock as set forth herein) for taking any corporate action.

                                      A-2

<PAGE>

     Section 5. Certain Restrictions.
                --------------------

            (a) The Corporation shall not declare any dividend or make any
distribution on, or redeem or purchase or otherwise acquire for consideration
any shares of Common Stock after the first issuance of a share or fraction of a
share of Series A Participating Preferred Stock unless concurrently therewith it
shall declare a dividend on the Series A Participating Preferred Stock as
required by Section 3 hereof

            (b) Whenever quarterly dividends or other dividends or distributions
payable on the Series A Participating Preferred Stock as provided in Section 3
arc in arrears, thereafter and until all accrued and unpaid dividends and
distributions whether or riot declared, on shares of Series A Participating
Preferred Stock outstanding shall have been paid in full, the Corporation shall
not

                (i)   declare or pay dividends on, make any other distributions
on, or redeem or purchase or otherwise acquire for consideration any shares of
stock ranking junior (either as to dividends or upon liquidation, dissolution or
winding up) to the Series A Participating Preferred Stock,

                (ii)  declare or pay dividends on, make any other distributions
on arty shares of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with Series A Participating Preferred
Stock, except dividends paid ratably on the Series A Participating Preferred
Stock and all such parity stock on which dividends are payable or in arrears in
proportion to the total amounts to which the holders of all such shares are then
entitled;

                (iii) redeem or purchase or otherwise acquire for consideration
shares of any stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Series A Participating
Preferred Stock, provided that the Corporation may at any time redeem, purchase
or otherwise acquire shares of any such parity stock in exchange for shares of
any stock of the Corporation ranking junior (either as to dividends or upon
dissolution, liquidation or winding up) to the Series A Participating Preferred
Stock;

                (iv)  purchase or otherwise acquire for consideration any shares
of Series A Participating Preferred Stock, or any shares of stock ranking on a
parity with the Series A Participating Preferred Stock, except in accordance
with a purchase offer made in writing or by publication (as determined by the
Board of Directors) to all holders of such shares upon such terms as the Board
of Directors, after consideration of the respective annual dividend rates and
other relative rights and preferences of the respective series and classes,
shall determine in good faith will result in fair and equitable treatment among
the respective series or classes.

            (c) The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under paragraph (a) of
this Section 5, purchase or otherwise acquire such shares at such time and in
such manner.

     Section 6. Reacquired Share. Any shares of Series A Participating Preferred
                ----------------
Stock purchased or otherwise acquired by the Corporation in any manner
whatsoever shall be retired

                                      A-3

<PAGE>

and canceled promptly after the acquisition thereof All such shares shall upon
their cancellation become authorized but unissued shares of Preferred Stock and
may be reissued as part of a new series of Preferred Stock to be created by
resolution or resolutions of the Board of Directors, subject to the conditions
and restrictions on issuance set forth herein and, in the Restated Certificate
of Incorporation, as then amended.

     Section 7.  Liquidation, Dissolution or Winding Up. Upon any liquidation,
                 --------------------------------------
dissolution or winding up of the Corporation, the holders of shares of Series A
Participating Preferred Stock shall be entitled to receive an aggregate amount
per share equal to 1000 times the aggregate amount to be distributed per share
to holders at shares of Common Stock plus an amount equal to any accrued and
unpaid dividends on such shares of Series A Participating Preferred Stock.

     Section 8.  Consolidation Merger. etc. In case the Corporation shall enter
                 -------------------------
into any consolidation, merger, combination or other transaction in which the
shares of Common Stock are exchanged for or changed into other stock or
securities, cash and/or any other property, then in any such case the shares of
Series A Participating Preferred Stock shall at the same time be similarly
exchanged or changed in an amount per share equal to 1,000 times the aggregate
amount of stock, securities, cash and/or any other property (payable in kind),
as the case may be, into which or for which each share of Common Stock is
changed or exchanged.

     Section 9.  No Redemption. The shares of Series A Participating Preferred
                 -------------
Stock shall not be redeemable.

     Section 10. Ranking. The Series A Participating Preferred Stock shall rank
                 -------
junior to all other series of the Corporation's Preferred Stock as to the
payment of dividends and the distribution of assets, unless the terms of any
such series shall provide otherwise.

     Section 11. Amendment, The Restated Certificate of Incorporation of the
                 ---------
Corporation shall not be further amended in any manner which would materially
alter or change the powers, preference or special rights of the Series A
Participating Preferred Stock so as to affect them adversely without the
affirmative vote of the holders of a majority of the outstanding shares of
Series A Participating Preferred Stock, voting separately as a class.

     Section 12. Fractional Shares. Series A Participating Preferred Stock may
                 -----------------
be issued in fractious of a share which shall entitle the holder, in proportion
to such holder's fractional shares, to exercise voting rights, receive
dividends, participate in distributions and to have the benefit of all other
rights of holders of Series A Participating Preferred Stock.

     RESOLVED FURTHER, that the President or any Vice President and the
Secretary or any Assistant Secretary of this corporation be, and they hereby
are, authorized and directed to prepare and file a Certificate of Designation of
Rights, Preferences and Privileges in accordance with the foregoing resolution
and the provisions of Delaware law and to take such actions as they may deem
necessary or appropriate to carry out the intent of the foregoing resolution."

     We further declare under penalty of perjury that the matters set forth in
the foregoing Certificate of Designations are true and correct of our own
knowledge.

                                       A-4

<PAGE>

         Executed at Menlo Park, California on January 29, 1997.

                                                  ______________________________
                                                  James A. Heisch, President

                                                  ______________________________
                                                  J. Casey McGlynn, Secretary

                                      A-5

<PAGE>

                                    EXHIBIT B
                                    ---------

                           FORM OF RIGHTS CERTIFICATE

Certificate No, R-                                                ________Rights

         NOT EXERCISABLE AFTER THE EARLIER OF (i) DECEMBER 19, 2006 (ii) THE
         DATE TERMINATED BY THE COMPANY OR (iii) THE DATE THE COMPANY EXCHANGES
         THE RIGHTS PURSUANT TO THE RIGHTS AGREEMENT. THE RIGHTS ARE SUBJECT TO
         REDEMPTION, AT THE OPTION OF THE COMPANY, AT $.001 PER RIGHT ON THE
         TERMS SET FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN CIRCUMSTANCES,
         RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING PERSON OR AN AFFILIATE OR
         ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS ARE DEFINED IN THE
         RIGHTS AGREEMENT) AND ANY SUBSEQUENT HOLDER OF SUCH RIGHTS MAY BECOME
         NULL AND VOID. [THE RIGHTS REPRESENTED BY THIS RIGHTS CERTIFICATE ARE
         OR WERE BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING
         PERSON OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH
         TERMS ARE DEFINED TN THE RIGHTS AGREEMENT), ACCORDINGLY, THIS RIGHTS
         CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY BECOME NULL AND VOID
         IN THE CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF THE RIGHTS
         AGREEMENT.]*

                               RIGHTS CERTIFICATE
                                  VIDAMED, INC.

         This certifies that __________________________, or registered assigns,
is the registered owner of the number of Rights set forth above, each of which
entitles the owner thereof subject to the terms, provisions and conditions of
the Amended and Restated Rights Agreement dated as of November 8, 2001 (the
"Rights Agreement"), between VidaMed, Inc., a Delaware corporation (the
"Company"), and Computershare Trust Company (the "Rights Agent"), to purchase
from the Company at any time after the Distribution Date (as such term is
defined in the Rights Agreement) and prior to 5:00 P.M., New York time, on
December 19, 2006 at the office of the Rights Agent designated for such purpose,
or at the office of its successor as Rights Agent, one one-thousandth (l/l000)
of a fully paid non-assessable share of Series A Participating Preferred Stock,
no par value, (the "Preferred Shares"), of the Company, at an Exercise Price of
Fifty Dollars ($50.00) per one-thousandth of a Preferred Share (the "Exercise
Price"), upon presentation and surrender of this Rights Certificate with the
Form of Election to Purchase and related Certificate duly executed. The number
of Rights evidenced by this Rights Certificate (and the number of
one-thousandths of a Preferred Share which may be purchased upon exercise
hereof) set forth above are the number and Exercise Price as of December 19,
1996 based on the Preferred Shares as constituted at such date. As provided in
the Rights Agreement, the Exercise Price and the number and kind of Preferred
Shares or other securities which may be purchased upon the exercise of the
Rights evidenced by this Rights Certificate are subject to modification and
adjustment upon the happening of certain events.

___________________
*        The portion of the legend in bracket shall be inserted only if
         applicable and shall replace the preceding sentence.

                                      B-1

<PAGE>

       This Rights Certificate is subject to all of the terms, provisions and
conditions of the Rights Agreement, which terms, provisions and conditions are
hereby incorporated herein by reference and made a part hereof and to which
Rights Agreement reference is hereby made for a full description of the rights,
limitations of rights, obligations, duties and immunities hereunder of the
Rights Agent, the Company and the holders of the Rights Certificates, which
limitations of rights include the temporary suspension of the exercisability of
such Rights under the specific circumstances set forth in the Rights Agreement.
Copies of the Rights Agreement are on file at the principal executive offices of
the Company and the above-mentioned office of the Rights Agent.

       Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Rights Certificate (i) may be redeemed by the Company, at its option, at
a redemption price of $0.01 per Right or (ii) may be exchanged by the Company in
whole or in part for Common Shares, substantially equivalent rights or other
consideration as determined by the Company.

       This Rights Certificate, with or without other Rights Certificates, upon
surrender at the office of the Rights Agent designated for such purpose, may be
exchanged for another Rights Certificate or Rights Certificates of like tenor
and date evidencing Rights entitling the holder to purchase a like aggregate
amount of securities as the Rights evidenced by the Rights Certificate or Rights
Certificates surrendered shall have entitled such holder to purchase. If this
Rights Certificate shall be exercised in part, the holder shall be entitled to
receive upon surrender hereof another Rights Certificate or Rights Certificates
for the number of whole Rights not exercised.

       No fractional portion of less than one one-thousandth of a Preferred
Share will be issued upon the exercise of any Right or Rights evidenced hereby
but in lieu thereof a cash payment will be made, as provided in the Rights
Agreement.

       No holder of this Rights Certificate as such, shall be entitled to vote
or receive dividends or be deemed for any purpose the holder of the Preferred
Shares or of any other securities of the Company which may at any time be
issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof as such, any
of the rights of a stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Rights
Certificate shall have been exercised as provided in the Rights Agreement.

       This Rights Certificate shall not be valid or obligatory for any purpose
until it shall have been countersigned by the Rights Agent.

                                      B-2

<PAGE>

         WITNESS the facsimile signature of the proper officers of the Company.

ATTEST:                                        VIDAMED, INC.

                                               By:______________________________
___________________________
                                               Title:___________________________

Countersigned:

COMPUTERSHARE TRUST COMPANY
as Rights Agent

By:________________________

Its:_______________________

                                      B-3

<PAGE>

                  [Form of Reverse Side of Rights Certificate]

                               FORM OF ASSIGNMENT
                               ------------------

                (To be executed by the registered holder if such
               holder desires to transfer the Rights Certificate)

     FOR VALUE RECEIVED __________________ hereby sells, assigns and transfers
unto ___________________________________________________________________________
                 (Please print name and address of transferee)
this Rights Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint ______________ Attorney, to
transfer the within Rights Certificate on the books of the within-named Company,
with full power of substitution,

Dated:______________________

                                               _________________________________
                                               Signature

Signature Guaranteed:

        Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.

<PAGE>

                                   CERTIFICATE
                                   -----------

The undersigned hereby certifies by checking the appropriate boxes that:

     (1) this Rights Certificate [_] is [_] is not being sold, assigned and
transferred by or on behalf of a Person who is or was an Acquiring Person, or an
Affiliate or Associate of any such Person (as such terms are defined in the
Rights Agreement);

     (2) after due inquiry and to the best knowledge of the undersigned, it
[_]did [_] did not acquire the Rights evidenced by this Rights Certificate from
any Person who is, was or subsequently became an Acquiring Person or an
Affiliate or Associate of any such Person.

Dated: _________________________

                                          ______________________________________
                                          Signature

     Signatures must be guaranteed by a member of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.

<PAGE>

            [Form of Reverse Side of Rights Certificate - continued]

                          FORM OF ELECTION TO PURCHASE
                          ----------------------------

                      (To be executed if holder desires to
                        exercise the Rights Certificate)

To:______________________________________

     The undersigned hereby irrevocably elects to exercise _____________________
Rights represented by this Rights Certificate to purchase the number of
one-thousandths of a Preferred Share issuable upon the exercise of such Rights
and requests that certificates for such number of one-thousandths of a Preferred
Share issued in the name of:

Please insert social security
or other identifying number

________________________________________________________________________________
                         (Please print name and address)

________________________________________________________________________________

If such number of Rights shall not be all the Rights evidenced by this Rights
Certificate, a new Rights Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number

________________________________________________________________________________
                         (Please print name and address)

________________________________________________________________________________

Dated:_____________________

                                              __________________________________
                                              Signature

<PAGE>

Signature Guaranteed

     Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc. or a commercial bank or trust company having an office or correspondent in
the United States,

                                  CERTIFICATE
                                  -----------

     The undersigned hereby certifies by checking the appropriate boxes that:

     (1) the Rights evidence by this Rights Certificate [_] are [_] are not
being exercised by or on behalf of a Person who is or was an Acquiring Person or
an Affiliate or Associate of any such Person (as such terms are defined in the
Rights Agreement);

     (2) after due inquiry and to the best knowledge of the undersigned, it [_]
did [_] did not acquire the Rights evidenced by this Rights Certificate from any
Person who is, was or subsequently became an Acquiring Person or an Affiliate or
Associate of any such Person.

Dated:___________________________

                                          _____________________________________
                                          Signature

Signature Guaranteed:

     Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.

<PAGE>

            [Form of Reverse Side of Rights Certificate - continued]

                                     NOTICE
                                     ------

     The signature in the foregoing Forms of Assignment and Election must
conform to the name as written upon the face of this Rights Certificate in every
particular, without alteration or enlargement or any change whatsoever.

<PAGE>

                                    EXHIBIT C
                                    ---------

                                SUMMARY OF RIGHTS

                             STOCKHOLDER RIGHTS PLAN
                                  VIDAMED, INC.

Distribution and          The Board of Directors has declared a dividend of one
Transfer of Rights;       Right for each share of VidaMed, Inc. Common Stock
Rights Certificate        outstanding. Prior to the

                          Distribution Date referred to below, the Rights will
                          be evidenced by and trade with the certificates for
                          the Common Stock. After the Distribution Date,
                          VidaMed, Inc. (the "Company") will mail Rights
                          certificates to the Company's stockholders and the
                          Rights will become transferable apart from the Common
                          Stock.

Distribution Date:        Rights will separate from the Common Stock and become
                          exercisable following (a) the tenth day (or such later
                          date as may be determined by a the Board of Directors)
                          after a person or group acquires beneficial ownership
                          of 20% (25%, in the case of a member of the Medtronic
                          Group) or more of the Company's Common Stock or (b)
                          the tenth business day (or such later date as may be
                          determined by the Board of Directors) after a person
                          or group announces a tender or exchange offer, the
                          consummation of which would result in ownership by a
                          person or group of 20% (25%, in the case of a member
                          of the Medtronic Group) or more of the Company's
                          Common Stock.

Preferred Stock           After the Distribution Date, each Right will entitle
Purchasable Upon          the holder to purchase for $50.00 (the "Exercise
Exercise of Rights:       Price"), a fraction of a share of the Company's
                          Preferred Stock with economic terms similar to that of
                          one share of the Company's Common Stock.

Flip-In:                  If an acquirer (an "Acquiring Person") obtains 20%
                          (25%, in the case of a member of the Medtronic Group)
                          or more of the Company's Common Stock (other than
                          pursuant to a tender offer deemed adequate and in the
                          best interests of the Company and its stockholders by
                          the Board of Directors (a "Permitted Offer") then each
                          Right (other than Rights owned by an Acquiring Person
                          or its affiliates) will entitle the holder thereof to
                          purchase, for the Exercise Price, a number of shares
                          of the Company's Common Stock having a then current
                          market value of twice the Exercise Price.

Flip-Out:                 If, after an Acquiring Person obtains 20% (25%, in
                          the case of a member of the Medtronic Group) or more
                          of the Company Common Stock, (a) the Company merges
                          into another entity, (b) an acquiring entity merges
                          into the Company or (c) the Company sells more than
                          50% of the Company's assets or earning power, then
                          each Right (other than Rights owned by an Acquiring
                          Person or its affiliates) will entitle the holder

                                      C-1

<PAGE>

                               thereof to purchase, for the Exercise Price, a
                               number of shares of Common Stock of the person
                               engaging in the transaction having a then current
                               market value of twice the Exercise Price (unless
                               the transaction satisfies certain conditions and
                               is consummated with a person who acquired shares
                               pursuant to a Permitted Offer, in which case the
                               Rights will expire).

Exchange Provision:            At any time after the date an Acquiring Person
                               obtains 20% (25%, in the case of a member of the
                               Medtronic Group) or more of the Company's Common
                               Stock and prior to the acquisition by the
                               Acquiring Person of 50% of the outstanding Common
                               Stock, a majority of the Board of Directors may
                               exchange the Rights (other than Rights owned by
                               the Acquiring Person or its affiliates), in whole
                               or in part, for shares of Common Stock of the
                               Company at an exchange ratio of one share of
                               Common Stock per Right (subject to adjustment).

Redemption of the Rights:      Rights will be redeemable at the Company's
                               option for $0.01 per Right at any time on or
                               prior to the tenth day (or such later date as may
                               be determined by the Board of Directors) after
                               public announcement that a Person has acquired
                               beneficial ownership of 20% (25%, in the case of
                               a member of the Medtronic Group) or more of the
                               Company's Common Stock (the "Shares Acquisition
                               Date").

Expiration of the Rights:      The Rights expire on the earliest of (a)
                               December 19, 2006, (b) exchange or redemption of
                               the Rights as described above, or (c)
                               consummation of a merger, consolidation or asset
                               sale resulting in expiration of the Rights as
                               described above.

Amendment of Terms of Rights:  The terms of the Rights and the Rights Agreement
                               may be amended in any respect without the consent
                               of the Rights holders on or prior to the
                               Distribution Date, thereafter, the terms of the
                               Rights and the Rights Agreement may be amended
                               without the consent of the Rights holders in
                               order to cure any ambiguities or to make changes
                               which do not adversely affect the interests of
                               Rights holders (other than the Acquiring Person).

Voting Rights:                 Rights will not have any voting rights.

Anti-Dilution Provisions:      Rights will have the benefit of certain
                               customary anti-dilution provisions.

Taxes:                         The Rights distribution should not be taxable
                               for federal income tax purposes. However,
                               following an event which renders the Rights
                               exercisable or upon redemption of the Rights,
                               stockholders may recognize taxable income.

                                       C-2

<PAGE>

The foregoing is a summary of certain principal terms of the Stockholder Rights
Plan only and is qualified in its entirety by reference to the detailed terms of
the Amended and Restated Rights Agreement dated as of November 8, 2001, between
the Company and the Rights Agent.

                                      C-3<PAGE>

                               AMENDMENT No. 1 TO
                      AMENDED AND RESTATED RIGHTS AGREEMENT

     This Amendment No. 1 to the Amended and Restated Rights Agreement (this
"Amendment") is between VidaMed, Inc., a Delaware corporation (the "Company"),
and Computershare Trust Company (the "Rights Agent"), effective as of December
5, 2001.

     A.  The Company and the Rights Agent have entered into an Amended and
Restated Rights Agreement, dated as of November 8, 2001 (the "Rights
Agreement"). Capitalized terms used and not otherwise defined herein will have
the meaning given in the Rights Agreement.

     B.  Section 27 of the Rights Agreement provides that, prior to the
Distribution Date, the Company may amend the Rights Agreement, including the
definition of an Acquiring Person as set forth in Section 1(a) thereof, and
that, upon any such amendment, the Rights Agent shall amend the Rights Agreement
as the Company directs.

     C.  The Company desires, and hereby directs the Rights Agent, to amend the
Rights Agreement, and the Rights Agent agrees to such amendment, on the terms
and conditions hereof.

     NOW, THEREFORE, the Company and the Rights Agent agree as follows:

1.   Representations and Warranties. The Company represents and warrants to
     ------------------------------
     the Rights Agent that:

     (a) to the best knowledge of the Company, the Distribution Date has not
     occurred prior to the effective date hereof; and

     (b) this Amendment is authorized pursuant to the requirements of Section 27
     of the Rights Agreement.

     2.  Amendment of Section 1. Section 1 of the Rights Agreement is hereby
         ----------------------
     amended by adding the following new paragraph at the end of that Section:

          Notwithstanding anything in this Agreement to the contrary, none of
     Medtronic, Inc., a Minnesota corporation, VidaMed Acquisition Corp., a
     Delaware corporation and a wholly owned subsidiary of Medtronic, Inc., any
     of their Affiliates or Associates or any of their permitted assignees or
     successors (as contemplated in Section 9.6 of the Merger Agreement) shall
     be deemed an Acquiring Person or an Affiliate or Associate, and none of a
     Distribution Date, a Shares Acquisition Date, or a Triggering Event shall
     be deemed to occur or to have occurred, and that the Rights will not become
     separable, distributable, unredeemable or exercisable, in each such case,
     by reason or as a result of the approval, execution or delivery of the
     Merger Agreement, the consummation of the Merger (as defined in the Merger
     Agreement) or the consummation of the other agreements or transactions
     contemplated by the Merger Agreement.

     3.  Amendment of Section 1(q). Section 1(q) of the Rights Agreement is
         -------------------------
     hereby amended by deleting Section 1(q) in its entirety and substituting
     the following therefor:

<PAGE>

          (q)  "Expiration Date" shall mean the earliest to occur of: (i) the
     Close of Business on the Final Expiration Date, (ii) the Redemption Date as
     defined in Section 23 hereof, (iii) the time at which the Board of
     Directors of the Company orders the exchange of the Rights as provided in
     Section 24 hereof, or (iv) immediately prior to the Effective Time of the
     Merger (each as defined in the Merger Agreement).

4.   Amendment at Section 1(qq). Section 1 of the Rights Agreement is hereby
     --------------------------
     amended by adding the following new Section 1(qq) immediately after Section
     1(pp):

          (qq) "Merger Agreement" means the Agreement and Plan of Merger dated
     December 5, 2001, by and among the Company, Medtronic, Inc. and VidaMed
     Acquisition Corp.

5.   Amendment of Section 13(g). Section 13(g) of the Rights Agreement is hereby
     --------------------------
     amended by deleting Section 13(g) in its entirety and substituting the
     following therefor:

          (g)  Notwithstanding anything in this Agreement to the contrary, upon
     the consummation of any merger or other acquisition transaction involving
     the Company, pursuant to a merger or other acquisition agreement between
     the Company and any Person (or one or more of such Person's Affiliates or
     Associates), which agreement has been approved by the Board of Directors of
     the Company prior to any Person becoming an Acquiring Person, all Rights
     hereunder shall expire.

6.   Amendment at Section 13(h). Section 13 of the Rights Agreement is hereby
     --------------------------
     amended by adding the following as Section 13(h):

          (h)  The provisions of this Section 13 shall similarly apply to
     successive mergers or consolidations or sales or other transfers.

7.   No Other Changes. Except as specifically amended by this Amendment, all
     ----------------
     other provisions of the Rights Agreement shall remain in full force and
     effect. This Amendment shall not constitute or operate as a waiver of, or
     estoppel with respect to, any provisions of the Rights Agreement by any
     party hereto.

8.   Counterparts. This Amendment No. 1 may be executed in one or more
     ------------
     counterparts, each of which shall be deemed an original, but all of which
     together shall constitute one and the same agreement.

9.   Capitalized Terms. Capitalized terms used without other definition in this
     -----------------
     Amendment No. 1 to the Rights Agreement shall be used as defined in the
     Rights Agreement.

11.  Governing Law. This Amendment No. 1 to the Rights Agreement shall be deemed
     -------------
     to be a contract made under the laws of the State of Delaware and for all
     purposes will be governed by and construed in accordance with the laws of
     such State applicable to contracts to be made and performed entirely within
     such State.

12.  Effectiveness. This Amendment No. 1 to the Rights Agreement shall be
     -------------
     effective as of, and immediately prior to, the execution and delivery of
     the Merger Agreement, and all

<PAGE>

     references to the Rights Agreement shall, from and after such time, be
     deemed to be references to the Rights Agreement as amended hereby.

13.  Exhibits. Exhibits B and C to the Rights Agreement shall be deemed amended
     --------
     in a manner consistent with this Amendment No. 1 to the Rights Agreement.

     The Company and the Rights Agent have caused this Amendment to be duly
executed on their behalf by their respective duly authorized representatives as
of the date first written above.

VIDAMED, INC.                                    COMPUTERSHARE TRUST COMPANY

By:  /s/ Randy D. Lindholm                       By:  /s/ Kellie Gwinn
     -----------------------------                    --------------------------
Its: Chairman, President and Chief               Its: Vice President
     Executive Officer

                                                 By:  /s/ Jennifer Owens
                                                      --------------------------
                                                 Its: /s/ Vice President

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