OMNICARE INC
SC 13D, 1998-03-04
DRUG STORES AND PROPRIETARY STORES
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<PAGE>

                                   UNITED STATES
                         SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C.  20549
                                          
                                          
                                    SCHEDULE 13D
                                          
                                          
                     UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                          
                                          
                                  COMPSCRIPT, INC.
- --------------------------------------------------------------------------------
                                  (Name of Issuer)
                                          
                           COMMON STOCK, PAR VALUE $.0001
- --------------------------------------------------------------------------------
                           (Title of Class of Securities)
                                          
                                    204680 10 2
- --------------------------------------------------------------------------------
                                   (CUSIP Number)
                                          
                                  Cheryl D. Hodges
                                   Omnicare, Inc.
                                 2800 Chemed Center
                               255 East Fifth Street
                              Cincinnati, Ohio  45203
                                          
                                  with copies to:
                                          
                                          
                                  Morton A. Pierce
                                  Richard D. Pritz
                                Dewey Ballantine LLP
                            1301 Avenue of the Americas
                              New York, New York 10019

    (Name, Address and Telephone Number of Person Authorized to Receive Notices
                                and Communications)
                                          
                                 February 23, 1998
- --------------------------------------------------------------------------------
              (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4) check the following box     [_].

NOTE:  Six copies of this statement, including exhibits, should be filed with
the Commission.  See Rule 13d-1(a) for other parties to whom copies are to be
sent.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).


                                          1

<PAGE>

                                     SCHEDULE 13D


CUSIP NO.  204680 10 2                                      

- --------------------------------------------------------------------------------
1         NAME OF REPORTING PERSON
          I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
          OMNICARE, INC.
          31-1001351
- --------------------------------------------------------------------------------
2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP             (a) / /  
                                                                       (b) /X/  
- --------------------------------------------------------------------------------
3         SEC USE ONLY                                                 (a) / /  
                                                                       (b) / /  
- --------------------------------------------------------------------------------
4         SOURCE OF FUNDS
          OO
- --------------------------------------------------------------------------------
5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED 
          PURSUANT TO ITEMS 2(d) OR 2(e).                                  / /  
- --------------------------------------------------------------------------------
6         CITIZENSHIP OR PLACE OF ORGANIZATION
          DELAWARE
- --------------------------------------------------------------------------------
   NUMBER OF        7    SOLE VOTING POWER
                         0
     SHARES         ------------------------------------------------------------
                    8    SHARED VOTING POWER 
  BENEFICIALLY           4,332,453(1)
                    ------------------------------------------------------------
 OWNED BY EACH      9    SOLE DISPOSITIVE POWER 
                         0
REPORTING PERSON    ------------------------------------------------------------
                    10   SHARED DISPOSITIVE POWER
      WITH               4,332,453(1)
- --------------------------------------------------------------------------------
11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          4,332,453(1)
- --------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN 
          SHARES                                                           / /  
- --------------------------------------------------------------------------------
13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)  
          30.8% (1). 
- --------------------------------------------------------------------------------
14        TYPE OF REPORTING PERSON
          CO
- --------------------------------------------------------------------------------

________________________
(1)  See Items 4 and 5.


                                          2

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ITEM 1.   SECURITY AND ISSUER.

               This Statement relates to the common stock, par value $0.0001 per
          share (the "Shares"), of CompScript, Inc., a Florida corporation
          ("CompScript").  The address of the principal executive office of
          CompScript is 1225 Broken Sound Parkway NW, Suite A, Boca Raton, FL 
          33487.
ITEM 2.   IDENTITY AND BACKGROUND.


               (a) - (c) and (f).  This Schedule 13D is filed by Omnicare, Inc.,
          a Delaware corporation ("Omnicare"). Omnicare is a leading independent
          provider of pharmacy and related services to long-term care
          institutions such as nursing homes, retirement centers and other
          institutional health care facilities.  Omnicare purchases, repackages
          and dispenses pharmaceuticals, both prescription and non-prescription,
          and provides computerized medical recordkeeping and third-party
          billing for residents in such facilities.  Omnicare also provides
          consultant pharmacist services, including evaluating monthly patient
          drug therapy, monitoring the control, distribution and administration
          of drugs within the nursing facility and assisting in compliance with
          state and federal regulations.  In addition, Omnicare provides
          ancillary services, such as infusion therapy, distributes medical
          supplies and offers clinical care plan and financial software
          information systems to its client nursing home facilities.  Omnicare's
          executive offices are located at 50 East RiverCenter Blvd. -- Suite
          1530, Covington, Kentucky 41011, and its telephone number is (606)
          655-1180.

               Each executive officer and each director of Omnicare is a citizen
          of the United States.  The name, business address and present
          principal occupation of each executive officer and director are set
          forth in Annex I to this Schedule 13D which is incorporated herein by
          reference.  

               (d) and (e).  During the last five years neither Omnicare nor, to
          the best of Omnicare's knowledge, any of its executive officers or
          directors has been convicted in any criminal proceeding (excluding
          traffic violations or similar misdemeanors) or has been a party to a
          civil proceeding of a judicial or administrative body of competent
          jurisdiction as a result of which Omnicare or such person was or is
          subject to judgment, decree or final order enjoining future violations
          of, or prohibiting or mandating activities subject to, federal or
          state securities laws, or finding any violation with respect to such
          laws, and which judgment, decree or final order was not subsequently
          vacated.

ITEM 3.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

               As described in the response to Item 4, the Shares to which this
          Schedule 13D relates have not been purchased by Omnicare.  In
          connection with, and as a condition to, Omnicare and CompScript
          entering into an Agreement and Plan of Merger, dated as of February 23
          ,1998 (the "Merger Agreement"), (i) Brian A. Kahan, the Chairman of
          the Board, Chief Executive Officer and President of CompScript and
          beneficial owner of approximately 30.8% of the outstanding Shares (the
          "Principal Shareholder"), has entered into a Voting Agreement, dated
          as of February 23, 1998 (the "Voting Agreement"), and (ii) Omnicare
          and CompScript have entered into a Stock Option Agreement, dated as of
          February 23, 1998 (the "Stock Option Agreement"). 


                                          3

<PAGE>

ITEM 4.   PURPOSE OF TRANSACTION.

               On February 23, 1998, CompScript and Omnicare entered into the
          Merger Agreement which provides, among other things, that, upon the
          terms and subject to conditions thereof, a wholly owned subsidiary of
          Omnicare to be formed solely for purposes of effecting such merger
          will merge with and into CompScript (the "Merger").  CompScript will
          be the surviving corporation in the Merger.

               In the Merger, each outstanding Share (other than shares held by
          holders exercising dissenters' rights under applicable law) will be
          converted into a fraction of a share of the common stock of Omnicare,
          par value $1.00 per share ("Omnicare Common Stock"), equal to the
          Conversion Ratio (as defined below), plus cash in lieu of receipt of
          fractional Omnicare Common Stock. 

               The "Conversion Ratio" will be equal to the quotient obtained by
          dividing (x) $4.50 by (y) the average of the closing prices per share
          of the Omnicare Common Stock as reported on the NYSE Composite Tape on
          each of the last ten trading days immediately preceding the fifth
          trading day prior to the closing date of the Merger (the "Omni Market
          Value"); PROVIDED, HOWEVER, that (i) if the Omni Market Value is less
          than $29.325, the Omni Market Value shall be deemed to be $29.325 for
          purposes of calculating the Conversion Ratio, and (ii) if the Omni
          Market Value is greater than $39.675, then the Omni Market Value shall
          be deemed to be $39.675 for purposes of calculating the Conversion
          Ratio.  Notwithstanding the foregoing, in the event the Omni Market
          Value is less than $24.15 or more than $44.85, Omnicare and CompScript
          will seek to renegotiate a new acceptable Conversion Ratio.  In the
          event that Omnicare and CompScript are unable to establish a mutually
          acceptable Conversion Ratio within two business days after the closing
          date of the Merger, then if the Omni Market Value is (i) less than
          $24.15, CompScript shall have the right to terminate the Merger
          Agreement or (ii) more than $44.85, Omnicare shall have the right to
          terminate the Merger Agreement.

               In connection with the execution of the Merger Agreement,
          Omnicare and CompScript entered into the Stock Option Agreement under
          which CompScript has granted Omnicare an option to purchase up to
          2,800,000 newly issued Shares at $4.50 per Share if certain events
          occur.  

               In addition, the Principal Shareholder has entered into the
          Voting Agreement pursuant to which the Principal Shareholder has
          agreed, subject to certain exceptions, to vote his Shares in favor of
          adoption of the Merger Agreement and approval of the Merger, to vote
          such Shares against any contrary transaction, to grant to Omnicare an
          irrevocable proxy to vote such Shares for such purposes and not to
          dispose of such Shares.

               The purpose of the Stock Option Agreement and the Voting
          Agreement is to facilitate the consummation of the transactions
          contemplated by the Merger Agreement.  The Stock Option Agreement and
          the Voting Agreement may also make it more difficult and expensive for
          CompScript to consummate a business combination with a party other
          than Omnicare.

               Upon consummation of the Merger, the Shares would cease to be
          quoted on the Nasdaq and would become eligible for termination of
          registration pursuant to Section 12(g)(4) of the Securities Exchange
          Act of 1934.


                                          4

<PAGE>

               Except as contemplated by the Merger Agreement, the Stock Option
          Agreement and the Voting Agreement or as otherwise set forth in this
          Item 4, Omnicare has no present plans or proposals which relate to or
          would result in any of the contingencies listed in subsections (a)
          through (j) of Item 4 of Schedule 13D.  The descriptions of the Merger
          Agreement, the Voting Agreement and the Stock Option Agreement
          contained in this Schedule 13D are qualified in their entirety by
          reference to the full text of such agreements, which are filed as
          exhibits hereto. 

ITEM 5.   INTEREST IN SECURITIES OF THE ISSUER.

               (a) and (b) 4,332,453 Shares, representing approximately 30.8% of
          the outstanding Shares, are subject to the Voting Agreement.  As a
          result of the provisions of the Voting Agreement, the Principal
          Shareholder and Omnicare may be deemed to share voting and dispositive
          power with respect to the Shares subject to the Voting Agreement.
          Pursuant to the Stock Option Agreement, Omnicare would have the right
          to acquire 2,800,000 Shares (representing approximately 19.9% of the
          outstanding Shares and approximately 16.6% of the Shares outstanding
          following the exercise of the option granted thereunder) under the
          circumstances set forth therein.  Calculations in this paragraph are
          based on 14,072,063, the number of Shares outstanding as of February
          23, 1998 as represented in the Merger Agreement by CompScript.

               (c) Other than the Merger Agreement, the Stock Option Agreement
          and the Voting Agreement and the transactions contemplated thereby,
          there have been no transactions in the Shares by Omnicare, or, to the
          best knowledge of Omnicare, by any of the directors or executive
          officers of Omnicare, during the past 60 days.

               (d)  To the best knowledge of Omnicare, the right to receive and
          the power to direct the receipt of dividends from, and the proceeds
          from the sale of, the Shares subject to the Voting Agreement are held
          by the Principal Shareholder.

               (e)  Not applicable.  

ITEM 6.   CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
          TO SECURITIES OF THE ISSUER.

               Other than the Merger Agreement, Stock Option Agreement and
          Voting Agreement and the transactions contemplated thereby, there are
          no contracts, arrangements, understandings or relationships between
          Omnicare and any other person, or, to the best knowledge of Omnicare,
          among any of the directors and executive officers of Omnicare and any
          other person, with respect to the Shares.  

ITEM 7.   MATERIAL TO BE FILED AS EXHIBITS.

               The following exhibits are filed as part of this Schedule 13D:

               Exhibit 1   --      Agreement and Plan of Merger dated as of
                                   February 23, 1998 between Omnicare and
                                   CompScript.


                                          5

<PAGE>

               Exhibit 2   --      Stock Option Agreement dated as of
                                   February 23, 1998 between Omnicare and
                                   CompScript.

               Exhibit 3   --      Voting Agreement dated as of February 23,
                                   1998 between Brian A. Kahan and Omnicare.


                                          6

<PAGE>

                                     SIGNATURE
                                     ---------


          After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated:  March 4, 1998.


                                             OMNICARE, INC.
                              
                                             By: /s/ Cheryl D. Hodges
                                                ---------------------------
                                                Name:  Cheryl D. Hodges
                                                Title: Senior Vice President 
                                                         and Secretary


                                          7

<PAGE>

                                                                         ANNEX I


                           DIRECTORS AND EXECUTIVE OFFICERS


          Set forth below are the name and present principal occupation of 
each director and executive officer of Omnicare. Unless indicated otherwise, 
the present principal occupation of each director and executive officer of 
Omnicare is a position with Omnicare.  The business address of each such 
director and executive officer is c/o Omnicare, Inc., 50 East RiverCenter 
Blvd., Suite 1530, Covington, Kentucky 41011.  Directors are indicated by an 
asterisk (*).

- --------------------------------------------------------------------------------
NAME                            PRESENT PRINCIPAL OCCUPATION

- --------------------------------------------------------------------------------
Edward L. Hutton*               Chairman of Omnicare and Chairman and Chief
                                Executive Officer of Chemed Corporation 
                                ("Chemed"), Cincinnati, Ohio. Chemed is a 
                                diversified public corporation with interests 
                                in plumbing and drain cleaning services and 
                                health care services.

- --------------------------------------------------------------------------------
Joel F. Gemunder*               President.

- --------------------------------------------------------------------------------
Patrick E. Keefe*               Executive Vice President-Operations.

- --------------------------------------------------------------------------------
Timothy E. Bien                 Senior Vice President - Professional Services
                                and Purchasing.

- --------------------------------------------------------------------------------
Mary Lou Fox*                   Senior Vice President-Marketing.

- --------------------------------------------------------------------------------
David W. Froesel, Jr.           Senior Vice President and Chief Financial
                                Officer.

- --------------------------------------------------------------------------------
Cheryl D. Hodges*               Senior Vice President and Secretary.

- --------------------------------------------------------------------------------
Ronald K. Baur*                 Vice President.

- --------------------------------------------------------------------------------
Kenneth W. Chesterman*          Retired Executive Vice President and a
                                consultant to Omnicare.  

- --------------------------------------------------------------------------------
Charles H. Erhart, Jr.*         Retired as President of W.R. Grace & Co.
                                ("W.R. Grace"), Boca Raton, Florida. W.R. 
                                Grace is an international specialty chemicals 
                                and health care company. Director of Chemed.

- --------------------------------------------------------------------------------
Thomas C. Hutton*               Vice President and Director of Chemed. 

- --------------------------------------------------------------------------------
Sandra E. Laney*                Senior Vice President, Chief Administrative
                                Officer and Director of Chemed. 

- --------------------------------------------------------------------------------
Andrea R. Lindell, DNSc, RN*    Dean and Professor in the College of Nursing and
                                Health at the University of Cincinnati. 

- --------------------------------------------------------------------------------
Sheldon Margen, M.D.*           Professor Emeritus in the School of Public
                                Health, University of California, Berkeley.  


                                          8

<PAGE>

- --------------------------------------------------------------------------------
Kevin J. McNamara*              President and Director of Chemed.

- --------------------------------------------------------------------------------
John M. Mount*                  President and Chief Executive Officer of Service
                                America Systems, Inc., a subsidiary of Chemed.  

- --------------------------------------------------------------------------------
D. Walter Robbins, Jr.*         Retired Vice Chairman of W.R. Grace and
                                Director of Chemed.

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

                                          9


<PAGE>

                                                                   Exhibit 1


                                       
                                       
                                       
                                       
                         AGREEMENT AND PLAN OF MERGER
                                by and between
                               COMPSCRIPT, INC.
                                     and
                                OMNICARE, INC.
                                       
                        Dated as of February 23, 1998

<PAGE>
                                       
                         AGREEMENT AND PLAN OF MERGER

          AGREEMENT AND PLAN OF MERGER, dated as of February 23, 1998 (the 
"Agreement"), by and between COMPSCRIPT, INC., a Florida corporation ("CSI" 
or the "Company"), and OMNICARE INC., a Delaware corporation ("Omni").

                                      RECITALS

          A.   The Boards of Directors of CSI and Omni deem it advisable and 
in the best interests of each corporation and its respective stockholders 
that CSI and Omni combine in order to advance their long-term business 
interests, all upon the terms and subject to the conditions of this Agreement.

          B.   It is intended that the combination of CSI and Omni be 
effected by a Merger (as defined below) of a direct wholly owned subsidiary 
of Omnicare to be formed solely for the purpose of effecting such merger 
("SUB") with and into CSI with CSI surviving, which shall be recorded for 
accounting purposes as a pooling-of-interests and shall be treated for 
Federal income tax purposes as a reorganization described in Section 368(a) 
of the Internal Revenue Code of 1986, as amended (the "Code"). CSI and SUB 
are hereinafter sometimes collectively referred to as the "Constituent 
Corporations."

          C.   Simultaneously with the execution of this Agreement, and as an 
inducement to Omni to enter into this Agreement, (i) Omni  and a stockholder 
of CSI are entering into a Voting Agreement (the "Voting Agreement") pursuant 
to which such stockholder has, among other things, agreed, upon the terms and 
subject to the conditions thereof, to vote his CSI Shares (as defined below) 
in favor of the Merger and (ii) Omni and CSI are entering into a Stock Option 
Agreement (the "Stock Option Agreement") pursuant to which CSI has granted 
Omni an option to purchase CSI Shares under certain circumstances.

          NOW, THEREFORE, in consideration of the premises and the mutual 
representations, warranties, covenants, agreements and conditions contained 
herein, the parties hereto agree as follows:
                                       
                                   ARTICLE I
                                   THE MERGER

          Section 1.1  The Merger.  (a) In accordance with the provisions of 
this Agreement and the Florida Business Corporation Act ("FBCA"), at the 
Effective Time (as defined below), SUB shall be merged (the "Merger") with and 
into CSI, and CSI shall be the surviving corporation (hereinafter sometimes 
called the "Surviving Corporation") and shall continue its corporate existence 
under the laws of the State of Florida. The name of the Surviving Corporation 
shall be CompScript, Inc.  At the Effective Time, the separate existence of 
SUB shall cease.

          (b)  The Merger shall have the effects on CSI and SUB, as 
Constituent Corporations of the Merger, provided for under the FBCA.

          Section 1.2  Effective Time.  The Merger shall become effective at 
the time of filing of, or at such later time as is agreed to by the parties 
and specified in, the articles of merger, in the form required by and 
executed in accordance with the FBCA, with the Secretary of State of the 
State of Florida in accordance with the provisions of Section 607.1105 of the 
FBCA (the "Articles of Merger").  The date and time when the Merger shall 
become effective is herein referred to as the 

<PAGE>

"Effective Time."  

          Section 1.3  Articles of Incorporation and Bylaws of Surviving 
Corporation. The Articles of Incorporation and Bylaws of SUB as in effect 
immediately prior to the Effective Time shall be the Articles of 
Incorporation and Bylaws of the Surviving Corporation until thereafter 
amended as provided by law.

          Section 1.4  Directors and Officers of Surviving Corporation.  (a) 
The directors of SUB immediately prior to the Effective Time shall be the 
directors of the Surviving Corporation and will hold office from and after 
the Effective Time until their respective successors are duly elected or 
appointed and qualify in the manner provided in the Articles of Incorporation 
and Bylaws of the Surviving Corporation or as otherwise provided by law or 
their earlier resignation or removal.

          (b)  The officers of CSI immediately prior to the Effective Time 
shall be the officers of the Surviving Corporation and each will hold office 
from and after the Effective Time until their respective successors are duly 
appointed and qualify in the manner provided in the Bylaws of the Surviving 
Corporation or as otherwise provided by law or their earlier resignation or 
removal.

          Section 1.5  Further Assurances.  If, at any time after the 
Effective Time, the Surviving Corporation shall consider or be advised that 
any deeds, bills of sale, assignments, assurances or any other actions or 
things are necessary or desirable to vest, perfect or confirm of record or 
otherwise in the Surviving Corporation its right, title or interest in, to or 
under any of the rights, properties or assets of either of the Constituent 
Corporations acquired or to be acquired by the Surviving Corporation as a 
result of, or in connection with, the Merger or otherwise to carry out this 
Agreement, the officers and directors of the Surviving Corporation shall be 
authorized to execute and deliver, in the name and on behalf of each of the 
Constituent Corporations or otherwise, all such deeds, bills of sale, 
assignments and assurances and to take and do, in the name and on behalf of 
each of the Constituent Corporations or otherwise, all such other actions and 
things as may be necessary or desirable to vest, perfect or confirm any and 
all right, title and interest in, to and under such rights, properties or 
assets in the Surviving Corporation or otherwise to carry out this Agreement.

                                     ARTICLE II
                                CONVERSION OF SHARES

          Section 2.1  Effect on CSI Shares.  As of the Effective Time, by 
virtue of the Merger and without any action on the part of the holders 
thereof:

          (a)  (x) Each share of CSI's common stock, $.0001 par value (the 
"CSI Shares"), issued and outstanding immediately prior to the Effective Time 
(except for shares referred to in Sections 2.1(b) and (d) hereof) shall be 
converted into the right to receive a number of shares (the "Conversion 
Ratio") of Common Stock, par value $1.00 per share, of Omni ("Omni Stock") 
equal 

                                       2

<PAGE>

to $4.50 divided by the Omni Market Value, provided, however, that (i) if the 
Omni Market Value is less than $29.325, the Omni Market Value shall be deemed 
to be $29.325 for purposes of this Section 2.1(a)(x) and (ii) if the Omni 
Market Value is more than $39.675, the Omni Market Value shall be deemed to 
be $39.675 for purposes of this Section 2.1(a)(x).

          (y) Notwithstanding the foregoing, in the event the Omni Market 
Value is less than $24.15 or more than $44.85, Omni and CSI will seek to 
renegotiate a new acceptable Conversion Ratio which will then replace the 
Conversion Ratio provided for in this Section 2.1(a).  In the event that Omni 
and CSI are unable to establish a mutually acceptable Conversion Ratio within 
two business days after the scheduled Closing Date (as defined below), then 
if the Omni Market Value is (i) less than $24.15, CSI shall have the right to 
terminate this Agreement or (ii) more than $44.85, Omni shall have the right 
to terminate this Agreement.  Any such termination shall be deemed a 
termination by mutual consent in accordance with Section 10.1(a) hereof.  

          (z) For purposes of this Section 2.1(a), the term "Omni Market 
Value" shall mean the average of the closing prices of the Omni Stock on the 
New York Stock Exchange (the "NYSE") for the 10 trading days immediately 
preceding the fifth trading day preceding the Closing Date.  In the event of 
any change in the CSI Shares or the Omni Stock by reason of any stock split, 
readjustment, stock dividend, exchange or shares, reclassification, 
recapitalization or similar event, the amounts set forth in clauses (x) and 
(y) above shall be appropriately adjusted.

          (b)  Each CSI Share held by CSI as treasury stock or owned by any 
Subsidiary (as defined below) of CSI shall be canceled.

          (c)  All CSI Shares shall be canceled and retired, and each 
certificate representing any such CSI Shares (except for shares referred to 
in Sections 2.1(b) and (d) hereof) shall thereafter (i) represent only the 
right to receive the Omni Stock issuable in exchange for such CSI Shares upon 
the surrender of such certificate in accordance with Section 2.4 (and any 
cash payable in respect of fractional shares) and (ii) entitle the holder 
thereof to receive dividends on such number of whole shares of Omni Stock 
which such holder is entitled to receive in exchange for such certificates, 
provided that dividends shall be paid to such holder, without interest, only 
upon surrender of certificates in accordance with Section 2.4.

          (d)  Notwithstanding anything to the contrary in this Agreement, 
any holder of CSI Shares who shall exercise the rights of a dissenting 
stockholder pursuant to and strictly in accordance with the provisions of 
Section 607.1302 of the FBCA shall be entitled to receive only the payment 
therein provided for and shall not be entitled to receive Omni Stock.  Such 
payment shall be made directly by the Surviving Corporation from its own 
funds.

          Section 2.2  Effect on CSI Options.  (a)  CSI has taken all actions 
as may be required to adjust the terms of all outstanding options to purchase 
CSI shares (the "CSI Stock Options") granted under any plan or arrangement 
providing for the grant of options to purchase CSI Shares to current or 
former officers, directors, employees or consultants of CSI (the "CSI Stock 
Option Plans"), whether vested or unvested, as necessary to provide that, at 
the Effective Time, each CSI Stock Option outstanding immediately prior to 
the Effective Time shall be amended and 

                                       3

<PAGE>

converted into an option to acquire, on the same terms and conditions as were 
applicable under such CSI Stock Option, the number of shares of Omni Stock 
(rounded up to the nearest whole share) determined by multiplying the number 
of CSI Shares subject to such CSI Stock Option by the Conversion Ratio, at an 
exercise price per share of Omni Stock equal to the price per share specified 
in such CSI Stock Option divided by the Conversion Ratio; provided that such 
exercise price shall be rounded up to the nearest whole cent. CSI shall 
promptly make such other changes to the CSI Stock Option Plans as Omni and 
CSI may agree as appropriate to give effect to the Merger.

          (b)  The adjustments provided herein with respect to any CSI Stock 
Options that are "incentive stock options" as defined in Section 422 of the 
Code shall be and are intended to be effected in a manner which is consistent 
with Section 424 of the Code.

          (c)  Except as otherwise contemplated by this Section 2.2 and 
except to the extent required under the respective terms of the CSI Stock 
Options or other applicable agreements, all restrictions or limitations on 
transfer and vesting with respect to CSI Stock Options awarded under the CSI 
Stock Option Plans or any other plan, program or arrangement of CSI, to the 
extent that such restrictions or limitations shall not have already lapsed, 
shall remain in full force and effect with respect to such options after 
giving effect to the Merger and the assumption by Omni as set forth above.

          (d)  Omni shall take such actions as are reasonably necessary for 
the assumption of the CSI Stock Options, including the reservation, issuance 
and listing of the Omni Stock as is necessary to effectuate the transactions 
contemplated by this Section 2.2.  The adjustments contemplated by this 
Section 2.2 do not require the consent of any holder of CSI Stock Options.

          Section 2.3  SUB Common Stock.  Each share of common stock of SUB 
issued and outstanding immediately prior to the Effective Time shall, by 
virtue of the Merger and without any action on the part of the holder 
thereof, be converted into one fully paid and nonassessable share of common 
stock of the Surviving Corporation.

          Section 2.4  Exchange Procedures.  (a) Omni shall authorize a bank 
or trust company to act as exchange agent hereunder (the "Exchange Agent") 
for the purposes of exchanging certificates representing CSI Shares and 
shares of Omni Stock.  As promptly as practicable after the Effective Time, 
Omni shall deposit with the Exchange Agent, in trust for the holders of 
Certificates (as defined in Section 2.4(b) below), certificates representing 
the shares of Omni Stock issuable pursuant to Section 2.1(a) in exchange for 
CSI Shares (the "Omni Certificates"). 

          (b)  Promptly after the Effective Time, the Exchange Agent shall 
mail or cause to be mailed to each record holder, as of the Effective Time, 
of an outstanding certificate or certificates which immediately prior to the 
Effective Time represented CSI Shares (the "Certificates"), a letter of 
transmittal in customary and reasonable form (which shall specify that 
delivery shall be effected, and risk of loss and title to the Certificates 
shall pass, only upon receipt of the Certificates by the Exchange Agent) and 
instructions for use in effecting the surrender of the Certificates for 
exchange therefor.  Upon surrender to the Exchange Agent of a Certificate, 
together 

                                       4

<PAGE>

with such letter of transmittal duly executed, the holder of such Certificate 
shall be entitled to receive in exchange therefor that number of shares of 
Omni Stock which such holder has the right to receive under Section 2.1(a) 
(and any amount of cash payable in lieu of fractional shares), less the 
amount of any withholding taxes which may be required thereon under any 
provision of federal, state, local or foreign tax Law, and such Certificate 
shall forthwith be canceled.  If any shares of Omni Stock are to be issued to 
a person other than the person in whose name the Certificate surrendered in 
exchange therefor is registered, it shall be a condition of exchange that the 
Certificate so surrendered shall be properly endorsed or otherwise in proper 
form for transfer and that the person requesting such exchange shall pay any 
transfer or other taxes required by reason of the exchange to a person other 
than the registered holder of the Certificate surrendered or such person 
shall establish to the satisfaction of the Surviving Corporation that such 
tax has been paid or is not applicable.

          (c)  No dividends or other distributions with respect to the Omni 
Stock constituting all or a portion of the consideration payable to the 
holders of CSI Shares shall be paid to the holder of any unsurrendered 
Certificate until such Certificate is  surrendered as provided for in this 
Section 2.4.  Subject to the effect of applicable Laws (as defined in Section 
4.4 below), following such surrender, there shall be paid, without interest, 
to the record holder of the Omni Certificates (i) at the time of such 
surrender, the amount of dividends or other distributions with a record date 
after the Effective Time payable prior to or on the date of such surrender 
with respect to such whole shares of Omni Stock, and not paid, and the amount 
of cash payable in lieu of any fractional shares, less the amount of any 
withholding taxes which may be required thereon under any provision of 
federal, state, local or foreign tax Law, and (ii) at the appropriate payment 
date, the amount of dividends or other distributions with a record date after 
the Effective Time, but prior to the date of surrender and a payment date 
subsequent to the date of surrender payable with respect to such whole shares 
of Omni Stock, less the amount of any withholding taxes which may be required 
thereon under any provision of federal, state, local or foreign tax Law.  
Omni shall make available to the Exchange Agent cash for these purposes.

          (d)  Any portion of the Omni Stock made available to the Exchange 
Agent pursuant to Section 2.4(a) that remains unclaimed by the holders of CSI 
Shares twelve (12) months after the Effective Time shall be returned to Omni, 
upon demand, and any such holder who has not exchanged his, her or its CSI 
Shares for Omni Stock in accordance with this Section 2.4 prior to that time 
shall thereafter look only to Omni for his, her or its claim for Omni Stock, 
any cash in lieu of fractional shares and certain dividends or other 
distributions.  Neither Omni nor SUB shall be liable to any holder of CSI 
Shares with respect to any Omni Stock (or cash in lieu of fractional shares) 
delivered to a public official pursuant to any applicable abandoned property, 
escheat or similar law.

          (e)  If any Certificate shall have been lost, stolen or destroyed, 
upon the making of an affidavit of that fact by the person claiming such 
Certificate to be lost, stolen or destroyed and, if required by Omni, the 
posting by such person of a bond in such reasonable amount as Omni may direct 
as indemnity against any claim that may be made against it with respect to 
such Certificate, the Exchange Agent shall issue in exchange for such lost, 
stolen or destroyed Certificate 

                                       5

<PAGE>

the consideration payable under Section 2.1(a) and, if applicable, any unpaid 
dividends and distributions on shares of Omni Stock deliverable with respect 
thereof and any cash in lieu of fractional shares, in each case pursuant to 
this Agreement.

          Section 2.5  Fractional Shares.  Notwithstanding any other 
provision of this Agreement, each holder of CSI Shares who upon surrender of 
Certificates therefor would be entitled to receive a fraction of a share of 
Omni Stock shall receive, in lieu of such fractional share of Omni Stock, 
cash in an amount equal to such fraction multiplied by Omni Market Value, 
less the amount of any withholding taxes which may be required thereon under 
any provision of federal, state, local or foreign tax law.

          Section 2.6  Transfers.  From and after the Effective Time, there 
shall be no transfers on the stock transfer books of CSI or the Surviving 
Corporation of CSI Shares.  If, after the Effective Time, Certificates are 
presented to the Surviving Corporation, they shall be canceled and exchanged 
as provided in this Article II.
                                       
                                 ARTICLE III
                    REPRESENTATIONS AND WARRANTIES OF OMNI

          Omni represents and warrants to CSI as follows:

          Section 3.1  Organization.  Omni is a corporation duly organized, 
validly existing and in good standing under the laws of the State of 
Delaware.  Omni will promptly cause SUB to be duly organized as a corporation 
under the laws of the State of Florida and a wholly owned subsidiary of Omni. 
Omni has all requisite corporate power and authority to own, lease and 
operate its properties and to carry on its business as now being conducted. 
Omni is duly qualified or licensed and in good standing to do business in 
each jurisdiction in which the property owned, leased or operated by it or 
the nature of the business conducted by it makes such qualifications 
necessary, except in such jurisdictions where the failure to be so duly 
qualified or licensed and in good standing would not, individually or in the 
aggregate, have a material adverse effect on the business, operations, 
assets, prospects, financial condition or results of operations of Omni and 
its subsidiaries taken as a whole and would not prevent or delay the 
consummation of the transactions contemplated hereby (an "Omni Material 
Adverse Effect").  Omni has made available to CSI complete and accurate 
copies of Omni's Certificate of Incorporation and Bylaws, each as currently 
in effect.

          Section 3.2  Capitalization.  The authorized capital stock of Omni 
consists of 110,000,000 shares of Omni Stock and 1,000,000 shares of 
preferred stock ("Omni Preferred Stock"). As of December 31, 1997, there were 
82,152,665 shares of Omni Stock issued and outstanding and no shares of Omni 
Preferred Stock outstanding.  All shares of Omni Stock to be issued at the 
Effective Time shall be, when issued, duly authorized and validly issued, 
fully paid, and non-assessable.  

          Section 3.3  Authority. Omni has full corporate power and authority 
to execute and 

                                       6

<PAGE>

deliver this Agreement and to consummate the transactions contemplated 
hereby.  The execution and delivery of this Agreement and the consummation of 
the transactions contemplated hereby have been duly and validly authorized 
and approved by the Board of Directors of Omni and no other corporate 
proceedings on the part of Omni are necessary to authorize this Agreement or 
the consummation of the transactions contemplated hereby, provided that Omni 
shall promptly cause SUB to be duly organized as a Florida corporation and a 
wholly owned subsidiary of Omni.  This Agreement has been duly and validly 
executed and delivered by Omni and, assuming this Agreement constitutes a 
legal, valid and binding agreement of CSI, constitutes a legal, valid and 
binding agreement of Omni, enforceable against Omni in accordance with its 
terms, except as the enforceability may be affected by applicable bankruptcy, 
reorganization, insolvency, moratorium or other similar laws effecting the 
enforcement of creditors' rights generally and the possible unavailability of 
certain equitable remedies, including the remedy of specific performance.

          Section 3.4  No Violations; Consents and Approvals.  (a) Neither 
the execution and delivery of this Agreement nor the consummation of the 
transactions contemplated hereby nor compliance by Omni or SUB with any of 
the provisions hereof conflicts with, violates or results in any breach of 
(i) any provision of the Certificate of Incorporation or Bylaws (or similar 
organizational documents) of either of Omni or SUB, (ii) any contract, 
agreement, instrument or understanding to which Omni or SUB is a party or by 
which Omni or SUB is bound, or (iii) any judgment, decree, order, statute, 
rule or regulation applicable to Omni or SUB, excluding from the foregoing 
clauses (ii) and (iii) conflicts, violations or breaches which, individually 
or in the aggregate, would not have an Omni Material Adverse Effect or 
materially impair Omni's or SUB's ability to consummate the transactions 
contemplated hereby or for which Omni or SUB have received or, prior to the 
Merger, shall have received appropriate consents or waivers.

          (b)  No filing or registration with, notification to, or 
authorization, consent or approval of, any governmental entity is required by 
Omni or SUB in connection with the execution and delivery of the Agreement or 
the consummation by Omni or SUB of the transactions contemplated hereby, 
except (i) in connection with the applicable requirements of the 
Hart-Scott-Rodino Anti-trust Improvements Act of 1976, as amended (the "HSR 
Act"), (ii) in connection, or in compliance, with the provisions of the 
Securities Act of 1933 (the "Securities Act") and the Securities Exchange Act 
of 1934 (the "Exchange Act"), (iii) the filing of the Articles of Merger with 
the Secretary of State of the State of Florida, (iv) filings with, and 
approval of, the NYSE in connection with obligations of Omni under Section 
5.12, (v) such consents, approvals, orders, authorizations, registrations, 
declarations and filings as may be required under the corporation, takeover 
or blue sky laws of various states and (vi) such other consents, orders, 
authorizations, registrations, declarations and filings, including under any 
pharmacy license, the failure of which to be obtained or made would, 
individually or in the aggregate, have an Omni Material Adverse Effect, or 
materially impair the ability of Omni or SUB to perform its obligations 
hereunder or prevent the consummation of any of the transactions contemplated 
hereby.

          Section 3.5  SEC Documents; Omni Financial Statements.  (a) Omni 
has filed with the Securities and Exchange Commission ("SEC") all documents 
required to be filed under the Securities Act and the Exchange Act since 
December 31, 1996 (the "Omni SEC Documents").  As 

                                       7

<PAGE>

of their respective dates, the Omni SEC Documents complied in all material 
respects with the requirements of the Securities Act and the Exchange Act, as 
the case may be, and none of the Omni SEC Documents contained any untrue 
statement of a material fact or omitted to state a material fact required to 
be stated therein or necessary to make the statements therein, in light of 
the circumstances under which they were made, not misleading.

          (b)  As of their respective dates, the consolidated financial 
statements of Omni included in the Omni SEC Documents were prepared in 
accordance with generally accepted accounting principles applied on a 
consistent basis during the periods involved (except as may be indicated 
therein or in the notes thereto) and present fairly the consolidated 
financial position of Omni and its consolidated subsidiaries as at the dates 
thereof and the consolidated results of their operations and statements of 
cash-flows for the periods then ended (subject, in the case of unaudited 
statements, to normal year-end audit adjustments and to any other adjustments 
described therein).

          Section 3.6  Absence of Certain Changes.  Except as disclosed in 
filings with the SEC, there has not been any change in the financial 
condition, results of operations or business of Omni and its subsidiaries, 
taken as a whole, since September 30, 1997, except for changes which, 
individually or in the aggregate, would not have an Omni Material Adverse 
Effect.

          Section 3.7  Proxy Statement/Prospectus, Registration Statement.  
None of the information regarding Omni and SUB to be supplied by Omni and SUB 
for inclusion or incorporation by reference in (i) the registration statement 
on Form S-4 (as it may be amended or supplemented from time to time, the 
"Registration Statement") relating to Omni Stock to be issued in connection 
with the Merger or (ii) the proxy statement to be distributed in connection 
with the stockholder meeting of CSI contemplated by Section 5.5 (as it may be 
amended or supplemented from time to time, the "Proxy Statement" and together 
with the prospectus to be included in the Registration Statement, the "Proxy 
Statement/Prospectus") will, in the case of the Registration Statement, at 
the time it becomes effective and at the Effective Time, and, in the case of 
the Proxy Statement, at the time of its mailing to stockholders of CSI and at 
the time of their stockholder meeting, contain any untrue statement of a 
material fact or omit to state any material fact required to be stated 
therein or necessary in order to make the statements therein not misleading 
in light of the circumstances when made.  If at any time prior to the 
Effective Time any event with respect to Omni shall occur which is required 
to be described in the Proxy Statement/Prospectus or Registration Statement, 
such event shall be so described, and an amendment or supplement shall be 
promptly filed with the SEC and, as required by law, disseminated to the 
stockholders of Omni and CSI.  The Proxy Statement/Prospectus and the 
Registration Statement will (with respect to Omni and SUB) comply in all 
material respects with the provisions of the Securities Act and the Exchange 
Act.

          Section 3.8  Broker's Fees. Neither Omni nor SUB nor any of Omni's 
other subsidiaries or affiliates has employed any broker, finder or financial 
advisor or incurred any liability for any broker's fees, commissions, or 
financial advisory or finder's fees in connection with any of the 
transactions contemplated by this Agreement.

                                       8

<PAGE>

          Section 3.9  Pooling of Interests; Reorganization.  Neither Omni 
nor SUB has or, as of the Closing Date, will have (i) taken any action or 
failed to take any action which action or failure would jeopardize the 
treatment of the Merger as a pooling of interests for accounting purposes or 
(ii) taken any action or failed to take any action which action or failure 
would result in the failure of the Merger to qualify as a reorganization 
within the meaning of Code Section 368(a). Omni has no knowledge of any fact 
or circumstance that is reasonably likely to prevent the Merger from 
qualifying as a pooling of interests for accounting purposes or a 
reorganization within the meaning of Code Section 368(a).
                                       
                                  ARTICLE IV
                    REPRESENTATIONS AND WARRANTIES OF CSI

          CSI represents and warrants to Omni and SUB as follows:

          Section 4.1  Organization.  (a) Each of CSI and its subsidiaries 
("Subsidiaries") is a corporation duly organized, validly existing and in 
good standing under the laws of the jurisdiction of its incorporation as 
indicated on Schedule 4.1, and each has all requisite corporate power and 
authority to own, lease and operate its properties and to carry on its 
business as now being conducted.  Each of CSI and its Subsidiaries is duly 
qualified or licensed and in good standing to do business in each 
jurisdiction in which the property owned, leased or operated by it or the 
nature of the business conducted by it makes such qualification necessary, as 
indicated on Schedule 4.1, except in such jurisdictions where the failure to 
be so duly qualified or licensed and in good standing would not, individually 
or in the aggregate, have a material adverse effect on the business, 
operations, assets, prospects, financial condition or results of operations 
of CSI and its Subsidiaries taken as a whole and would not prevent or delay 
the consummation of the transactions contemplated hereby (a "CSI Material 
Adverse Effect").  Set forth on Schedule 4.1 is an accurate and complete list 
of all of the Subsidiaries. 

          (b)  CSI previously has delivered to Omni accurate and complete 
copies of the Articles of Incorporation and Bylaws (or similar organizational 
documents) as currently in effect of CSI and each of the Subsidiaries.

          Section 4.2  Capitalization.  (a) The authorized capital stock of 
CSI consists of 50,000,000 CSI Shares and 1,000,000 shares of preferred 
stock, par value $.0001 per share ("CSI Preferred Stock").  As of the date 
hereof, there are 14,072,063 CSI Shares issued and outstanding, no shares of 
CSI Preferred Stock issued and outstanding and no CSI Shares or shares of CSI 
Preferred Stock held in CSI's treasury or by any Subsidiary of CSI.  As of 
the date hereof, there were outstanding under the CSI Stock Option Plans, all 
of which are listed on Schedule 4.2, CSI Stock Options entitling the holders 
thereof to purchase, in the aggregate, up to 1,548,262 CSI Shares.  Schedule 
4.2 lists, as to each CSI Stock Option, the holder, date of grant, exercise 
price and number of shares subject thereto. Except for the CSI Stock Option 
Plans, there are not now, and at the Effective Time there will not be, any 
existing options, warrants, calls, subscriptions, or other rights or other 
agreements or commitments obligating CSI to issue, transfer or sell any 
shares of capital stock of CSI or any other securities convertible into or 
evidencing the right to subscribe for 

                                       9

<PAGE>

any such shares.  All issued and outstanding CSI Shares are, and all CSI 
Shares issued and outstanding at the Effective Time shall be, duly authorized 
and validly issued, fully paid and non-assessable.

          (b)  The authorized capital stock of each Subsidiary as well as the 
number of such shares issued and outstanding are set forth on Schedule 4.2.  
All of the issued and outstanding shares of each Subsidiary have been duly 
authorized and are validly issued, fully paid and nonassessable.  Except as 
set forth on Schedule 4.2, CSI holds of record and owns beneficially all of 
the outstanding shares of the capital stock of each Subsidiary, free and 
clear of any charges, liens, encumbrances or security interests and no shares 
of the capital stock of any Subsidiary are held in treasury.  There are not 
now, and at the Effective Time there will not be, any existing options, 
warrants, calls, subscriptions or other rights or other agreements or 
commitments obligating CSI or any Subsidiary to issue, transfer or sell any 
of the shares of capital stock of any Subsidiary or any other securities 
convertible into or evidencing the right to subscribe for any such shares.  
Except as set forth on Schedule 4.2(b) and except for interests in the 
Subsidiaries, neither CSI nor any Subsidiary has any investment or interest 
in any entity.

          Section 4.3  Authority.  CSI has full corporate power and authority 
to execute and deliver this Agreement and the Stock Option Agreement and, 
subject to the requisite approval of the Merger and the adoption of this 
Agreement by CSI's stockholders, to consummate the transactions contemplated 
hereby.  The execution and delivery of this Agreement and the Stock Option 
Agreement and the consummation of the transactions contemplated hereby and 
thereby have been duly and validly authorized by CSI's Board of Directors 
and, except for (in the case of this Agreement) the requisite approval of the 
Merger and the adoption of this Agreement by CSI's stockholders, no other 
corporate proceedings on the part of CSI are necessary to authorize this 
Agreement or the Stock Option Agreement or to consummate the transactions 
contemplated hereby or thereby.  CSI's Board of Directors has determined that 
the transactions contemplated by this Agreement, including the Merger, and 
the Stock Option Agreement are in the best interests of CSI and its 
stockholders and, except as provided in Section 5.2 below, have determined to 
recommend to such stockholders that they vote in favor of this Agreement and 
the consummation of the transactions contemplated hereby, including the 
Merger.  Each of this Agreement and the Stock Option Agreement has been duly 
and validly executed and delivered by CSI, and assuming this Agreement 
constitutes a legal, valid and binding agreement of Omni, constitutes a 
legal, valid and binding agreement of CSI, enforceable against CSI in 
accordance with its terms, except as the enforceability may be affected by 
applicable bankruptcy, reorganization, insolvency, moratorium or other 
similar laws effecting the enforcement of creditors' rights generally and the 
possible unavailability of certain equitable remedies, including the remedy 
of specific performance.

          Section 4.4  No Violations; Consents and Approvals.  (a) Neither 
the execution and delivery of this Agreement or the Stock Option Agreement 
nor the consummation of the transactions contemplated hereby or thereby nor 
compliance by CSI with any of the provisions hereof or thereof, except as set 
forth in Schedule 4.4, conflicts with, violates or results in any breach of 
or default or triggers any payment or obligations under (or an event which, 
with or without notice or the lapse of time would constitute a violation, 
breach or default under) (i) any provision of 

                                       10

<PAGE>

the Articles of Incorporation or Bylaws (or similar organizational documents) 
of CSI or any of its Subsidiaries, (ii) any contract, agreement, instrument 
or understanding to which CSI or any Subsidiary is a party, or by which CSI, 
any Subsidiary or any of their respective assets or properties is bound, or 
(iii) any law, judgment, decree, order, statute, rule or regulation of any 
jurisdiction or governmental authority (a "Law") applicable to CSI, any of 
its Subsidiaries or any of their respective assets or properties, excluding 
from the foregoing clauses (ii) and (iii) conflicts, violations or breaches 
which, individually or in the aggregate, would not have a CSI Material 
Adverse Effect or materially impair CSI's ability to consummate the 
transactions contemplated hereby or for which CSI has received appropriate 
consents or waivers.

          (b)  No filing or registration with, notification to, or 
authorization, consent or approval of, any governmental entity is required by 
CSI in connection with the execution and delivery of this Agreement  or the 
Stock Option Agreement or the consummation by CSI of the transactions 
contemplated hereby or thereby, except (i) in connection with the applicable 
requirements of the HSR Act, (ii) in connection or in compliance, with the 
Securities Act and the Exchange Act, (iii) the filing of the Articles of 
Merger with the Secretary of State of the State of Florida, (iv)  filing 
with, and approval of, the NASDAQ with respect to the delisting of CSI 
Shares, (v) such consents, approvals, orders, authorizations, registrations, 
declaration and filings as may be required under the corporation, takeover or 
blue sky laws of various states and (vi) as set forth in Schedule 4.4, such 
other consents, orders, authorizations, registrations, declarations and 
filings, the failure of which to be obtained or made would, individually or 
in the aggregate, have a CSI Material Adverse Effect or materially impair 
CSI's ability to consummate the transactions contemplated hereby.

          Section 4.5  SEC Documents; CSI Financial Statements.  (a) CSI has 
filed with the SEC all documents required to be filed under the Securities 
Act and the Exchange Act since April 26, 1996 (the "CSI SEC Documents").  As 
of their respective dates, the CSI SEC Documents complied in all material 
respects with the requirements of the Securities Act and the Exchange Act, as 
the case may be, and none of the CSI SEC Documents contained any untrue 
statement of a material fact or omitted to state a material fact required to 
be stated therein or necessary to make the statements therein, in light of 
the circumstances under which they were made, not misleading.

          (b)  As of their respective dates, the consolidated financial 
statements of CSI included in the CSI SEC Documents complied in all material 
respects with then applicable accounting requirements and the published rules 
and regulations of the SEC with respect thereto, were prepared in accordance 
with generally accepted accounting principles applied on a consistent basis 
during the periods involved (except as may be indicated therein or in the 
notes thereto) and present fairly the consolidated financial position of CSI 
and its consolidated Subsidiaries as at the dates thereof and the 
consolidated results of their operations and statements of cash flows for the 
periods then ended (subject, in the case of unaudited statements, to normal 
year-end audit adjustments and to any other adjustments described therein).

          (c)  Set forth as Schedule 4.5 are (i) consolidated audited balance 
sheets of CSI and its Subsidiaries as of December 31, 1996 and (ii) 
consolidated unaudited statements of income 

                                       11

<PAGE>

of CSI and its Subsidiaries for the three-month period ending, and balance 
sheets as of, September 30, 1997. Each of the balance sheets set forth on 
Schedule 4.5 are accurate and complete in all material respects, were 
prepared in accordance with generally accepted accounting principles applied 
on a consistent basis during the periods involved (except as may be indicated 
therein or in the notes thereto) and present fairly the consolidated 
financial position of CSI and its consolidated Subsidiaries at the date 
thereof and the consolidated results of their operations and statements of 
cash flows for the period then ended (subject, in the case of interim 
statements, to year-end audit adjustments of a normal, recurring type which 
would not, in the aggregate, have a CSI Material Adverse Effect).  The 
balance sheet as of September 30, 1997 is sometimes referred to as the "CSI 
Interim Balance Sheet."

          (d)  Neither CSI nor any of its Subsidiaries have any material 
liability or material obligation of any kind (whether contingent or otherwise 
and whether due or to become due) except (i) as set forth on Schedule 4.5, 
(ii) as set forth on the CSI Interim Balance Sheet, or (iii) as incurred in 
the ordinary course of business, consistent with past practice since the date 
of the CSI Interim Balance Sheet.

          (e)  Schedule 4.5(e) sets forth, to CSI's knowledge, reasonable 
best estimates of certain financial information for the mail order business 
and pharmacy benefits management services businesses of CSI and its 
Subsidiaries.  The information set forth in such schedule was prepared on a 
basis consistent with the other financial information described in Section 
4.5(b) and fairly presents the information set forth therein.

          Section 4.6  Absence of Certain Changes.  Since the date of the CSI 
Interim Balance Sheet, CSI and each of its Subsidiaries have been operated 
only in the ordinary course, consistent with past practice, and there has not 
been any adverse change, or any event, fact or circumstance which might 
reasonably be expected to result in an adverse change, in either event that 
would have a CSI Material Adverse Effect.  Without limiting the generality of 
the foregoing, except as set forth on Schedule 4.6, since September 30, 1997, 
there has not been with respect to CSI or any Subsidiary any:

          (a)  sale or disposition of any material asset other than inventory 
in the ordinary course;

          (b)  payment of any dividend, distribution or other payment to any 
stockholder of CSI or to any relative of any such stockholder other than 
payments of salary and expense reimbursements made in the ordinary course of 
business, consistent with past practice, for employment services actually 
rendered or expenses actually incurred; 

          (c)  incurrence or commitment to incur any liability, individually 
or in the aggregate, material to CSI and its Subsidiaries taken as a whole, 
except such liabilities under CSI's existing credit facilities and 
liabilities incurred in connection with the Merger; 

          (d)  waiver, release, cancellation or compromise of any 
indebtedness owed to CSI or claims or rights against others, exceeding 
$100,000 in the aggregate;

                                       12

<PAGE>

          (e)  any change in any accounting method, principal or practice 
except as required or permitted by generally accepted accounting principles;

          (f)  unusual or novel method of transacting business engaged in by 
CSI or any of its Subsidiaries or any change in CSI's accounting procedures 
or practices or its financial or equity structure; or

          (g)  taking of any action contemplated by Section 5.1 hereof.

          Section 4.7  Proxy Statement/Prospectus; Registration Statement.  
None of the information regarding CSI to be supplied by CSI for inclusion or 
incorporation by reference in the Registration Statement or the Proxy 
Statement will, in the case of the Registration Statement, at the time it 
becomes effective and at the Effective Time, and, in the case of the Proxy 
Statement, at the time of its mailing to stockholders of CSI and at the time 
of the stockholder meeting, contain any untrue statement of a material fact 
or omit to state any material fact required to be stated therein or necessary 
in order to make the statements therein not misleading in light of the 
circumstances when made.  If at any time prior to the Effective Time any 
event with respect to CSI shall occur which is required to be described in 
the Proxy Statement or Registration Statement, such event shall be so 
described, and an amendment or supplement shall be promptly filed with the 
SEC and, as required by law, disseminated to the stockholders of Omni and 
CSI.  The Proxy Statement and the Registration Statement will (with respect 
to CSI) comply in all material respects with the provisions of the Securities 
Act and the Exchange Act.

          Section 4.8  State Anti-takeover Statutes.  The CSI Board of 
Directors has approved this Agreement and the transactions contemplated 
hereby and such approval constitutes approval of the Merger and the other 
transactions contemplated hereby, including approval of the Voting Agreement 
and the Stock Option Agreement, by the CSI Board of Directors as required by 
the FBCA.  No "business combination," "moratorium," "control share," "fair 
price," "interested shareholder," "affiliated transaction" or other 
anti-takeover statute or regulation (including Sections 607.0901 and 607.0902 
of the FBCA) (i) prohibits or restricts CSI's ability to perform its 
obligations under this Agreement or the Stock Option Agreement (or any 
party's ability to perform its obligations under the Voting Agreement) or 
either party's ability to consummate the Merger or the other transactions 
contemplated hereby or thereby, or (ii) would have the effect of invalidating 
or voiding this Agreement, the Voting Agreement or the Stock Option Agreement 
or any provision hereof or thereof.  CSI does not have a "shareholder rights 
plan" or other arrangement of similar effect.  CSI is subject to (and has not 
opted out of) Section 607.0902 of the FBCA, which regulates "control-share 
acquisitions."

          Section 4.9  Broker's Fees.  Except for the engagement of 
NationsBanc Montgomery Securities LLC and Shulman & Associates by CSI, 
neither CSI nor any of its Subsidiaries or affiliates or their respective 
officers or directors has employed any broker, finder or financial advisor or 
incurred any liability for any broker's fees, commissions, financial advisory 
or finders' fees in connection with any of the transactions contemplated by 
this Agreement.  CSI has delivered to Omni true and complete copies of the 
agreements evidencing such engagements and has fully disclosed to Omni the 
fees payable to such entities.

                                       13

<PAGE>

          Section 4.10  Fairness Opinion.  CSI has received the opinion of 
NationsBanc Montgomery Securities LLC to the effect that as of the date 
hereof the financial terms of the Merger are fair to CSI's stockholders from 
a financial point of view.  A copy of such fairness opinion has been or will 
be delivered to Omni as soon as practicable after the date of this Agreement.

          Section 4.11  Environmental Matters.  Except as disclosed on 
Schedule 4.11, which disclosed items could not, individually or in the 
aggregate, reasonably be expected to have a CSI Material Adverse Effect:

     (a)  CSI and its Subsidiaries hold and are in material compliance with, 
all Environmental Permits (as defined below), and CSI and its Subsidiaries 
are, and CSI and its Subsidiaries (including any predecessors) have been, in 
material compliance with all applicable Environmental Laws (as defined below).

     (b)  Neither CSI or its Subsidiaries have received any Environmental 
Claim (as defined below), and neither CSI or its Subsidiaries are aware of 
any threatened Environmental Claim against CSI or any of its Subsidiaries.

     (c)  There are no (i) underground storage tanks, (ii) polychlorinated 
biphenyls, (iii) asbestos or asbestos-containing materials, (iv) 
urea-formaldehyde insulation, (v) surface impoundments, (vi) landfills, or 
(vii) Hazardous Materials (as defined below) present at any facility 
currently owned, leased, operated or otherwise used or, to CSI's knowledge, 
formerly owned, leased, operated or otherwise used, by CSI or any of its 
Subsidiaries (including any predecessors) that could give rise to liability 
of CSI or any of its Subsidiaries under any Environmental Laws which 
liability could reasonably be expected to have a CSI Material Adverse Effect.

     (d)  No modification, revocation, reissuance, alteration, transfer, or 
amendment of the Environmental Permits, or any review by, or approval of, any 
third party of the Environmental Permits is required in connection with the 
execution or delivery of this Agreement or the consummation of the 
transactions contemplated hereby or the continuation of the business of CSI 
or its Subsidiaries following such consummation.

     (e)  Hazardous Materials have not been used, generated, transported, 
treated, stored, disposed of, released or threatened to be released at, on, 
from or under any of the properties or facilities currently owned, leased, 
operated or otherwise used or, to CSI's knowledge, formerly owned, leased, 
operated or otherwise used, including without limitation for receipt of the 
CSI's wastes, by CSI or any of its Subsidiaries (including any predecessors), 
in violation of or in a manner or to a location that could give rise to 
liability under any Environmental Laws which liability could reasonably be 
expected to have a CSI Material Adverse Effect.

     (f)  For purposes of this Section 4.11, the following terms shall have 
the meanings given to them below:

     (1) "Environmental Claim" means any written notice, claim, demand, 
action, complaint, 

                                       14

<PAGE>

investigation or proceeding arising out of, relating to, based on or 
resulting from (i) the presence, discharge, emission, release or threatened 
release of any Hazardous Materials at any location, whether or not owned, 
leased or operated by CSI or any of its Subsidiaries or (ii) circumstances 
forming the basis of any violation or alleged violation of any Environmental 
Law or Environmental Permit.

     (2) "Environmental Permits" means all permits, licenses, registrations 
and other governmental authorizations required for CSI and its Subsidiaries 
and the operations of CSI's and its Subsidiaries' facilities and otherwise to 
conduct the business of CSI and its Subsidiaries under Environmental Laws.

     (3) "Environmental Laws" means all domestic and foreign federal, state 
and local laws, statutes, rules, regulations, ordinances, orders, decrees and 
common law relating in any manner to contamination, pollution or protection 
of human health or the environment, including without limitation the 
Comprehensive Environmental Response, Compensation and Liability Act, the 
Solid Waste Disposal Act, the Clean Air Act, the Clean Water Act, the Toxic 
Substances Control Act, the Occupational Safety and Health Act, the Emergency 
Planning and Community-Right-to-Know Act, the Safe Drinking Water Act, all as 
amended, and similar state and local laws.

     (4) "Hazardous Materials" means all hazardous or toxic substances, 
wastes or chemicals, petroleum (including crude oil or any fraction thereof) 
and petroleum products, asbestos and asbestos-containing materials, 
pollutants, contaminants, substances and forces, including but not limited to 
electromagnetic fields, regulated pursuant to, or that could reasonably be 
expected to form the basis of liability under, any Environmental Law.

          Section 4.12  Contracts.  Schedule 4.12 sets forth a complete and 
accurate list of:

          (a)  All contracts to which CSI or any Subsidiary is a party or by 
which either is bound which (i) involve amounts in excess of $100,000, or 
payments based on profits or sales, (ii) are not cancelable by CSI or such 
Subsidiary upon less than 30 days' notice, or (iii) involve terms or 
quantities exceeding normal commitments in the ordinary course of business.

          (b)  All contracts which involve amounts in excess of $100,000 and 
pursuant to which CSI or any Subsidiary provides pharmaceuticals, medical 
supplies, therapies, intravenous infusion services, or any other products, 
services or therapies related to any of the foregoing.

          (c)  All contracts with wholesalers, distributors, dealers, sales 
representatives, or cooperative associations to which CSI or any Subsidiary 
is a party or by which either is bound and which involve amounts in excess of 
$100,000.

          (d)  All contracts with any federal, state or local governmental 
authorities, agencies or subdivisions to which CSI or any Subsidiary is a 
party or by which either is bound and which involve amounts in excess of 
$100,000.

                                       15

<PAGE>

          (e)  All contracts for the past or present disposal of Hazardous 
Materials or infectious waste or other materials to which CSI or any 
Subsidiary is or was a party or by which either is or was bound.

          (f)  All employment, consulting, management, or agency contracts, 
understandings or agreements (including any "severance" or "change in 
control" plans, contracts, understandings or agreements) to which CSI or any 
Subsidiary is a party or by which either is bound.

          (g)  All contracts containing an obligation of confidentiality with 
respect to information furnished by CSI or any Subsidiary to a third party, 
or received by either from a third party.

          (h)  All contracts limiting the freedom of CSI or any Subsidiary to 
compete in any line of business, or with any person, or in any geographic 
area or market.

          (i)  All contracts providing for the present or future lease 
(whether as lessee or lessor), purchase or sale of any real property by CSI 
or any Subsidiary and which involve amounts in excess of $100,000.

          With respect to each contract set forth on Schedule 4.12, (i) each 
is legal, valid, binding and enforceable against CSI or the applicable 
Subsidiary, and to CSI's knowledge, against each other party thereto, and is 
in full force and effect; (ii) each will continue to be legal, valid, binding 
and enforceable against CSI or the applicable Subsidiary, and to CSI's 
knowledge, against each other party thereto, and will continue to be in full 
force and effect immediately following the Effective Time in accordance with 
the terms thereof as in effect prior to the Effective Time; and (iii) neither 
CSI nor the applicable Subsidiary, nor to CSI's knowledge, any other party, 
is in breach or default, and no event has occurred which, with notice or 
lapse of time, or both, would constitute a material breach or default or 
permit termination, modification or acceleration under any such contract.  
Neither CSI nor any Subsidiary has been party to any discussions or received 
any correspondence concerning breach or termination of any of the foregoing 
contracts and, to CSI's knowledge, there is no default under, or any 
violation of, any of the foregoing contracts by any other party thereto.  CSI 
or the applicable Subsidiary has performed, in all material respects, all 
obligations required to be performed by it to date and is not in default in 
any material respect under any of the contracts, agreements, leases or other 
documents to which it is a party.  CSI has delivered or will cause to be 
delivered to, or make available for review by, Omni copies of each such 
contract listed on Schedule 4.12.  Since the date of the CSI Interim Balance 
Sheet, there has been no material modification or termination of any such 
contract nor, to CSI's knowledge, is any such modification or termination 
contemplated.

          Section 4.13  Compliance With Laws.  Except as set forth on 
Schedule 4.13, CSI and each Subsidiary is not, and has not been, in violation 
of any Law, including, without limitation, any Law pertaining to Medicare, 
Medicaid, reimbursement, environmental protection, infectious or 

                                       16
<PAGE>

biomedical waste, occupational health or safety, or employment practices, the 
violation of which has or can reasonably be expected to have a CSI Material 
Adverse Effect.  

          Section 4.14  No Litigation.  Except as set forth in the CSI SEC 
Documents filed prior to the date of this Agreement or on Schedule 4.14, 
there is no claim, litigation, investigation or proceeding by any person or 
governmental authority pending or, to CSI's knowledge, threatened against CSI 
or any Subsidiary.  Except as set forth on Schedule 4.14, there are no 
pending or, to CSI's knowledge, threatened controversies or disputes with, or 
grievances or claims by, any employees or former employees of CSI, any 
Subsidiary or any of their respective predecessors of any nature whatsoever, 
including, without limitation, any controversies, disputes, grievances or 
claims with respect to their employment, compensation, benefits or working 
conditions, which, if adversely determined, would have a CSI Material Adverse 
Effect.

          Section 4.15  Inventories.  The inventories reflected on the CSI 
Interim Balance Sheet are sufficient to cover the immediate needs of CSI and 
its Subsidiaries in the ordinary course of business as conducted by CSI and 
its Subsidiaries prior to the execution hereof.  All of the pharmaceuticals, 
drugs and biologicals included in inventory are in date and are properly 
labeled and packaged.  

          Section 4.16  Permits and Licenses.  Schedule 4.16 lists all 
permits, licenses, approvals or authorizations of any government authority 
required to conduct the business of CSI and its Subsidiaries as currently 
conducted the absence of which would have a CSI Material Adverse Effect (the 
"Permits").  All such Permits have been legally obtained and maintained by 
CSI and its Subsidiaries and are in full force and effect. CSI and its 
Subsidiaries are duly licensed to provide pharmacy services in all states in 
which they do business and are in substantial compliance with the terms of 
such licenses.  All such licenses to provide pharmacy services are included 
in the Permits listed on Schedule 4.16.

          Section 4.17  Employee Benefits.  (a) All employee welfare benefit 
plans as defined in Section 3(1) of the Employee Retirement Income Security 
Act of 1974 ("ERISA"), employee pension benefit plans as defined in Section 
3(2) of ERISA, and all other employee benefit programs or arrangements of any 
type, written or unwritten maintained by CSI or to which CSI contributes are 
listed on Schedule 4.17 and Schedule 4.17 separately sets forth any Plans 
which CSI, or any affiliate or predecessor of CSI, maintained or contributed 
to within the six years preceding the date hereof (collectively, the 
"Plans").  CSI has delivered to Omni true and complete copies of each Plan.

          (b)  Except as disclosed on Schedule 4.17, the Plans comply, in all 
material respects, with all applicable provisions of all Laws, including, 
without limitation, the Code and ERISA, and have so complied during all prior 
periods during which any such provisions were applicable.  Without limiting 
the foregoing, each of the Plans, and any related trust, intended to meet the 
requirements for tax-favored treatment under the Code (including, without 
limitation, Sections 401 and 501 and Subchapter B of the Chapter 1 of the 
Code) meets and for all prior periods has met, such requirements in all 
material respects.

                                       17

<PAGE>

          (c)  Except as disclosed on Schedule 4.17, CSI and any other party 
involved in the administration of any of the Plans (i) has complied in all 
material respects with the provisions of ERISA, the Code and other Laws, 
applicable to such party, whether as an employer, plan sponsor, plan 
administrator, or fiduciary of any of the Plans or otherwise, (including 
without limitation the provisions of ERISA and the Code concerning prohibited 
transactions), and (ii) has administered the Plans in accordance with their 
terms.  CSI has made all contributions required of it by any Law (including, 
without limitation, ERISA) or contract under any of the Plans and no unfunded 
liability exists with respect to any of the Plans.

          (d)  Except as disclosed on Schedule 4.17, CSI has no 
responsibility or liability, contingent or otherwise, with respect to any 
Plans or any employee benefits other than under the Plans listed on Schedule 
4.17.  CSI has the right to amend or terminate, without the consent of any 
other person, any of the Plans, except as prohibited by law and any 
applicable collective bargaining agreement.  Neither CSI, nor any affiliate 
or predecessor of CSI, maintains or has ever maintained or been obligated to 
contribute to (i) any defined benefit pension plan (as such term is defined 
in Section 3(35) of ERISA), (ii) any multiemployer plan (as such term is 
defined in Section 3(37) of ERISA), (iii) any severance plan or policy, or 
(iv) any arrangement providing medical or other welfare benefits to retirees 
or other former employees or their beneficiaries, except as required under 
part 6 of Subtitle B of Title I of ERISA or Section 4980B(f) of the Code 
(hereinafter collectively referred to as "COBRA").

          (e)  Except as disclosed on Schedule 4.17, there are no actions, 
suits or claims pending (other than routine claims for benefits) or, to CSI's 
knowledge, any actions, suits, or claims (other than routine claims for 
benefits) which could reasonably be expected to be asserted, against any of 
the Plans, or the assets thereof, or against CSI or any other party with 
respect to any of the Plans.

          Section 4.18  Taxes.     (a) Except as set forth on Schedule 4.18, 
each member of the Group (as defined below) has duly filed, or had CSI file 
on its behalf (and with respect to Tax Returns (as defined below) due after 
the date hereof and prior to the Closing Date will duly file or have CSI file 
on its behalf), with the appropriate federal, state, local and foreign taxing 
authorities all Tax Returns required to be filed by or with respect to each 
member of the Group. All such Tax Returns were (and, as to Tax Returns not 
filed as of the date hereof, will be) true, correct and complete in all 
material respects as of the time of filing. CSI has included each Subsidiary 
in its consolidated federal income Tax Returns for all periods ended on or 
before December 31, 1996. CSI, with respect to the consolidated federal 
income Tax Returns, and each member of the Group, with respect to any other 
Tax Return, has paid (and until the Closing Date will pay) in full on a 
timely basis all Taxes (as defined below) due with respect to such Tax 
Returns and such Taxes that are otherwise due, except to the extent such Tax 
is being contested in good faith through appropriate proceedings and for 
which adequate reserves have been established on the CSI Interim Balance 
Sheet. Except as set forth on Schedule 4.18, the balance for accrued Taxes on 
the CSI Interim Balance Sheet for the payment of accrued but unpaid Taxes 
through the date thereof is correct and the amount of the Group's and CSI's 
liability for unpaid Taxes shall not exceed such 

                                       18

<PAGE>

balance for accrued but unpaid Taxes of the Group and CSI, respectively.  The 
balance of accrued Taxes on a consolidated and separate company basis have 
been determined in accordance with generally accepted accounting principles, 
applied on a consistent basis. All monies which each member of the Group was 
required by Law to withhold from employees have been withheld (and until the 
Closing Date will be withheld) and either timely paid to the proper 
governmental authority or set aside in accounts for such purposes and accrued 
on the books of the Group or member, as the case may be.  CSI and each 
Subsidiary has undertaken in good faith to appropriately classify all service 
providers as either employees or independent contractors for all Tax purposes.

          (b)  Except as set forth on Schedule 4.18, neither CSI nor any 
Subsidiary has ever been a member of an affiliated group filing consolidated 
returns other than the Group of which CSI and the Subsidiaries were the only 
members.  

          (c)  Except as set forth on Schedule 4.18, (i) none of the members 
of the Group has received any notice of a deficiency or assessment with 
respect to Taxes of the Group or any member from any taxing authority which 
has not been fully paid or finally settled, except to the extent any such 
deficiency or assessment is being contested in good faith through appropriate 
proceedings and for which adequate reserves have been established on the CSI 
Interim Balance Sheet; (ii) there are no ongoing audits or examinations of 
any Tax Return relating to the Group or any member thereof and no notice 
(oral or written) of audit or examination of any such Tax Return has been 
received by any member of the Group; (iii) neither CSI nor any member of the 
Group has given nor has there been given on its behalf a waiver or extension 
of any statute of limitations relating to the payment of Taxes for any year 
in which CSI or any Subsidiary was a member of the Group; (iv) neither CSI 
nor any of its Subsidiaries has ever been audited by the Internal Revenue 
Service; and (v) no issue has been raised (either in writing or orally, 
formally or informally) on audit or in any other proceeding (and is currently 
pending) with respect to Taxes of the Group or any member thereof by any 
taxing authority which, if resolved against the Group or any member, would 
have a CSI Material Adverse Effect.  CSI and each member of the Group has 
disclosed on its federal income tax returns all positions taken therein that 
could give rise to a substantial understatement penalty within the meaning of 
Code Section 6662.

          (d)  Except as set forth on Schedule 4.18, neither CSI nor any 
Subsidiary is (nor has either ever been) a party to any tax sharing agreement 
and neither has assumed the liability of any other person under law or 
contract.  CSI and each Subsidiary shall, as of the Closing Date, terminate 
all tax allocation or tax sharing agreements with respect to CSI or such 
Subsidiary, and neither CSI nor any Subsidiary shall have any further 
liability under any such agreements.

          (e)  Except as set forth on Schedule 4.18, neither CSI nor any 
member of the Group (i) has filed a consent pursuant to Code Section 341(f) 
nor agreed to have Code Section 341(f)(2) apply to any disposition of a 
subsection (f) asset (as such term is defined in Code Section 341(f)) owned 
by a member of the Group; (ii) has agreed, or is required, to make any 
adjustment under Code Section 481(a) by reason of a change in accounting 
method or otherwise that will affect the liability of the Group or any member 
for Taxes; (iii) has made an election, or is required, to treat any asset of 
the Group or any member as owned by another person pursuant to the provisions 
of 

                                       19

<PAGE>

former Code Section 168(f)(8); (iv) is now, has ever been or on or before the 
Closing Date will be a party to any agreement, contract, arrangement, or plan 
(including, without limitation, the agreements contemplated by Section 5.14 
hereof) that would result, separately or in the aggregate, in the payment of 
any "excess parachute payments" within the meaning of Code Section 280G; (v) 
has participated in an international boycott as defined in Code Section 999; 
(vi) is now or has ever been a "foreign person" within the meaning of Code 
Section 1445(b)(2); (vii) is now or has ever been a United States real 
property holding corporation within the meaning of Code Section 
897(c)(1)(A)(ii); or (viii) has made any of the foregoing elections or is 
required to apply any of the foregoing rules under any comparable state or 
local tax provision.  

          (f)  No member of the Group is required to report or pay any Taxes 
from any joint venture, partnership or other arrangement or contract that 
could be treated as a partnership for federal income tax purposes.

          (g)  Neither CSI nor any of its Subsidiaries has distributed the 
stock of any corporation in a transaction satisfying the requirements of Code 
Section 355 since April 16, 1997. 

          (h)  For purposes of this Section 4.18, the following terms shall 
have the meaning given to them below:

          (1)  "Group" means, individually and collectively, (i) CSI, (ii) 
     the Subsidiaries, and (iii) any individual, trust, corporation, 
     partnership or any other entity as to which CSI is liable for Taxes 
     incurred by such individual or entity either as transferee, or pursuant 
     to Treasury Regulation 1.1502-6, or pursuant to any other Law.

          (2)  "Tax" means any of the Taxes, and "Taxes" means, with respect 
     to the Group, (i) all income taxes (including any tax on or based upon 
     net income, or gross income, or income as specially defined, or 
     earnings, or profits, or selected items of income, earnings, or profits) 
     and all gross receipts, estimated, sales, use, ad valorem, transfer, 
     franchise, license, withholding, payroll, employment, excise, severance, 
     stamp, occupation, premium, property, windfall profits, environmental 
     (including taxes under Code Section 59A), alternative, add-on minimum, 
     custom duties, capital stock, social security (or similar), 
     unemployment, disability, or other taxes, fees, assessments, or charges 
     of any kind whatsoever, together with any interest, penalty, or addition 
     thereto, whether disputed or not, imposed by any taxing authority on the 
     Group or any member thereof, and (ii) any liability for payment of any 
     amount of the Tax described in the immediately preceding clause (i) as a 
     result of being a "transferee" (within the meaning of Code Section 6901 
     or any other applicable law) of another person or successor, by 
     contract, or otherwise, or a member of an affiliated, consolidated, or 
     combined group. 

          (3)  "Tax Return" means any return, declaration, report, claim or 
     refund, or information return or statement or other document (including 
     any related or supporting information) filed or required to be filed 
     with any appropriate federal, state, local or foreign governmental 
     entity or authority (individually or collectively, "taxing authority") 
     or other 

                                       20

<PAGE>

     authority in connection with the determination, assessment or collection 
     of any Tax paid or payable by the Group or the administration of any 
     Laws, regulations, or administrative requirements relating to any such 
     Tax.

          Section 4.19  Customers. No nursing home or other facility or 
institution served by CSI or any Subsidiary has, since September 30, 1997, 
canceled or otherwise terminated, or to CSI's knowledge, made any threat to 
cancel or otherwise terminate, its relationship with CSI or any Subsidiary. 

          Section 4.20  Absence of Certain Business Practices.  Neither CSI, 
nor any Subsidiary, nor any director, officer, employee or agent of the 
foregoing, nor any other person acting on its behalf, directly or indirectly, 
has to CSI's knowledge given or agreed to give any gift or similar benefit to 
any customer, supplier, governmental employee or other person which (i) could 
reasonably be expected to subject CSI or any Subsidiary to any damage or 
penalty in any civil, criminal or governmental litigation or proceeding, 
which damage or penalty may result in a CSI Material Adverse Effect, (ii) if 
not given in the past, might have had a CSI Material Adverse Effect, or (iii) 
if not continued in the future, might have a CSI Material Adverse Effect or 
which might subject CSI or any Subsidiary to suit or penalty in any private 
or governmental litigation or proceeding.  

          Section 4.21  Intellectual Property.   Neither CSI nor any of its 
Subsidiaries own or license for use any patents, trademarks, trade names, 
service marks, mask works or copyrights, other than the common law trade 
names listed on Schedule 4.21 and variations thereof. There has not been any 
actual or alleged infringement or misuse by (i) any party of any of CSI's or 
any Subsidiary's trade secrets, confidential information or other 
intellectual property rights, to CSI's knowledge, and (ii) CSI or any 
Subsidiary of any third party's trade secrets, confidential information or 
other intellectual property rights.

          Section 4.22  Pooling of Interests; Reorganization.  Neither CSI 
nor any of its Subsidiaries has or, as of the Closing Date, will have (i) 
taken any action or failed to take any action which action or failure would 
jeopardize the treatment of the Merger as a pooling of interest for 
accounting purposes or (ii) taken any action or failed to take any action 
which action or failure would result in the failure of the Merger to qualify 
as a reorganization within the meaning of Code Section 368(a). Neither CSI 
nor any Subsidiary has any knowledge of any fact or circumstance that is 
reasonably likely to prevent the Merger from qualifying as a pooling of 
interests for accounting purposes or a reorganization within the meaning of 
Code Section 368(a).

          Section 4.23  Insurance.  CSI carries insurance covering it and its 
Subsidiary's assets, business, equipment, properties, operations, employees, 
officers and directors of the type and in amounts customarily carried by 
persons conducting business similar to that of CSI and such Subsidiaries.  
All such policies are in full force and effect and all premiums have been 
paid to the extent they are due.  

          Section 4.24  Required Vote of CSI Stockholders.  The affirmative 
vote of the 

                                       21

<PAGE>

holders of a majority of the outstanding CSI Shares is required to approve 
the Merger.  No other vote of the stockholders of CSI is required by Law, the 
Articles of Incorporation or Bylaws of CSI or otherwise in order for CSI to 
consummate the Merger and the transactions contemplated hereby.

          Section 4.25. Employment Matters. Neither CSI nor any of its 
Subsidiaries has experienced any strikes, collective labor grievances, other 
collective bargaining disputes or claims of unfair labor practices in the 
last five years. To CSI's knowledge, there is no organizational effort 
presently being made or threatened by or on behalf of any labor union with 
respect to employees of CSI or its Subsidiaries.

          Section 4.26. Certain Healthcare Legal Matters.  (a) CSI and its 
Subsidiaries and all of their respective officers, directors, employees, 
consultants or agents (collectively, the "Personnel") have complied in all 
material respects with all applicable statutes, regulations, rules, orders, 
ordinances and other laws of the United States of America, all state, local 
and foreign governments and other governmental bodies and authorities, and 
agencies of any of the foregoing ("Governmental Authority") to which it is 
subject with respect to healthcare regulatory matters (including, without 
limitation, The Social Security Act, as amended, Sections 1128, 1128A and 
1128B, 42 U.S.C. Sections 1320a-7, 7(a) and 7(b) including Criminal Penalties 
Involving Medicare or State Health Care Programs, commonly referred to as the 
"Federal Anti-Kickback Statute" and The Social Security Act, as amended, 
Section 1877, 42 U.S.C. Section 1395nn (Prohibition Against Certain 
Referrals), commonly referred to as the "Stark Statute", the statute commonly 
referred to as the "Federal False Claims Act" and all statutes and 
regulations related to the possession, distribution, maintenance and 
documentation of controlled substances) ("Healthcare Laws"). CSI and its 
Subsidiaries have maintained all records required to be maintained by the 
FDA, DEA and State Board of Pharmacy and the Medicare and Medicaid programs 
as required by applicable Healthcare Laws. There are no presently existing 
circumstances which would result or would be likely to result in violations 
of any such Healthcare Laws, except to the extent such violations would not 
have a CSI Material Adverse Effect.
     
     (b)  CSI and its Subsidiaries hold all permits necessary for the lawful 
conduct of their business under and pursuant to all applicable statutes, 
laws, ordinances, rules and regulations of all Governmental Authorities 
having, asserting or claiming jurisdiction over it or any part of their 
operations. CSI and its Subsidiaries have correctly maintained in all 
respects all records required to be maintained by the FDA, DEA and State 
Boards of Pharmacy and pursuant to the requirements of the Medicare and 
Medicaid programs.

      (c) CSI and its Subsidiaries are qualified for participation in the 
Medicare and Medicaid programs. Neither CSI or any of its Subsidiaries have 
received any notice indicating that such qualification may be terminated or 
withdrawn and have no reason to believe that such qualification may be 
terminated or withdrawn. CSI and its Subsidiaries have timely filed all 
claims or other reports required to be filed with respect to the purchase of 
products or services by third-party payors (including Medicare and Medicaid), 
and all such claims or reports are complete and accurate in all material 
respects except where the failure to file such claims and 

                                       22

<PAGE>

reports would not result in a CSI Material Adverse Effect. CSI and its 
Subsidiaries have no liability to any payor with respect thereto, except for 
liabilities incurred in the ordinary course of business. There are no pending 
appeals, overpayment determinations, adjustments, challenges, audit, 
litigation or notices of intent to open Medicare or Medicaid claim 
determinations or other reports required to be filed by CSI or its 
Subsidiaries. To CSI's knowledge, no Personnel have been convicted of, or 
pled guilty or nolo contendere to any Medicare, Medicaid or any other federal 
healthcare program related offense or committed any offense which may 
reasonably serve as the basis for suspension or exclusion from the Medicare 
and Medicaid programs.

     (d) There are no pharmaceutical or other products now being sold or 
distributed by CSI or its Subsidiaries which, at the date hereof, would 
require any approval of any governmental or administrative body, whether 
federal, state, local or foreign, prior to commercial distribution of such 
products, for which approval has not been obtained. All pharmaceutical or 
other products now being distributed by CSI or its Subsidiaries and all 
products included in the inventories of CSI or its Subsidiaries on the date 
hereof comply with applicable legal requirements of all jurisdictions in 
which such pharmaceutical or other products are now being distributed. 

          Section 4.27. Product Warranties. Except as set forth in Schedule 
4.27, neither CSI nor any of its Subsidiaries has made any express warranties 
with respect to products sold or distributed by CSI and its Subsidiaries 
(other than passing on warranties made by the manufacturers thereof) and, to 
the best of CSI's knowledge, no other warranties have been made by Personnel. 
CSI has no knowledge of any presently existing circumstances that would 
constitute a valid basis for any voluntary or governmental recall of any 
pharmaceutical or other product sold or distributed by CSI or any Subsidiary.

     Section 4.28.  Certain Business Practices. To CSI's knowledge, none of 
CSI or any of its Subsidiaries has made, and, no Personnel or representative 
of CSI or its Subsidiaries (in their capacities as such) has made, directly 
or indirectly with respect to the business of CSI or its Subsidiaries, any 
bribes, kickbacks, or other illegal payments or illegal political 
contributions, illegal payments from corporate funds to governmental 
officials in their individual capacities, or illegal payments from corporate 
funds to obtain or retain business either within the United States or abroad.

                                       23

<PAGE>

          Section 4.29  Customers.  Schedule 4.29 contains a true and correct 
summary of all skilled nursing homes and other facilities, including assisted 
living or independent living, and the number of licensed beds in those 
facilities which are provided products and services by CSI under contract and 
are serviced by CSI or its Subsidiaries, and, except as set forth in Schedule 
4.29, during the quarter ended December 31, 1997, not more than 5% of the 
revenues of CSI during such period was attributable to patients serviced in a 
single nursing home company or other company or, to the best knowledge of 
CSI, any group of affiliated companies. Schedule 4.29 sets forth a complete 
list of all nursing home companies (including affiliated companies) that own 
or control more than 5% of the beds serviced by CSI and its Subsidiaries and 
all nursing home companies, other companies and related groups or entities 
from which CSI derives directly or indirectly more than 5% of its revenues. 
Except as set forth on Schedule 4.29, neither CSI nor any Subsidiary has 
received any notice that any party intends to cancel any of the contracts 
listed on Schedule 4.29.

          Section 4.30 Purchasing Contracts. No provision, including of any 
contract, arrangement, understanding, law, rule, regulation or any other item 
which may bind CSI or any of its Subsidiaries, prevents or will prevent CSI 
and its Subsidiaries from using Omni purchasing contracts and arrangements 
with wholesalers in the conduct of their business, including in lieu of any 
existing purchasing contracts or arrangements with wholesalers.

                                     ARTICLE V

                                     COVENANTS

          Section 5.1  Conduct of Business of CSI.  Except as contemplated by 
this Agreement or as expressly agreed to in writing by Omni, during the 
period from the date of this Agreement to the Effective Time, CSI and its 
Subsidiaries will conduct their operations substantially as presently 
operated and only in the ordinary course of business, consistent with past 
practice and will use commercially reasonable efforts to preserve intact 
their business organization, to keep available the services of their officers 
and employees and to maintain satisfactory relationships with suppliers, 
distributors, customers and others having business relationships with it and 
will take no action which would adversely affect its ability to consummate 
the transactions contemplated by this Agreement.  Without limiting the 
generality of the foregoing, except as otherwise expressly provided in this 
Agreement, prior to the Effective Time neither CSI nor any of its 
Subsidiaries will, without the prior written consent of Omni;

          (a)  amend its Articles of Incorporation or Bylaws (or similar 
organizational documents);

          (b)  authorize for issuance, issue, sell, deliver, grant any 
options for, or otherwise agree or commit to issue, sell or deliver any 
shares of its capital stock or any other securities, other than pursuant to 
and in accordance with the terms of the Stock Option Agreement and as set 
forth in Schedule 5.1;

                                          24
<PAGE>

          (c)  recapitalize, split, combine or reclassify any shares of its 
capital stock; declare, set aside or pay any dividend or other distribution 
(whether in cash, stock or property or any combination thereof) in respect of 
its capital stock; or purchase, redeem or otherwise acquire any shares of its 
own capital stock or of any of its Subsidiaries;

          (d)  (i) create, incur, assume, maintain or permit to exist any 
long-term debt or any short-term debt for borrowed money other than under 
existing lines of credit, relating to purchase money security interests or 
obligations as a lessee under leases recorded as capital leases, each as 
incurred in the ordinary course of business; (ii) assume, guarantee, endorse 
or otherwise become liable or responsible (whether directly, contingently or 
otherwise) for the obligations of any other person except its wholly owned 
subsidiaries in the ordinary course of business and consistent with past 
practices; or (iii) make any loans, advances or capital contributions to, or 
investments in, any other person;

          (e)  (i) increase in any manner the rate of compensation of any of 
its directors, officers or other employees, except in the ordinary course of 
business and in accordance with its customary past practices or as otherwise 
may be contractually required and disclosed on Schedule 5.1 attached hereto; 
or (ii) pay or agree to pay any bonus, pension, retirement allowance, 
severance or other employee benefit except as required under currently 
existing Plans disclosed in Schedule 4.17;

          (f)  except as set forth on Schedule 5.1, sell or otherwise dispose 
of, or encumber, or agree to sell or otherwise dispose of or encumber, any 
assets (including securities of Subsidiaries) other than inventory in the 
ordinary course of business;

          (g)  enter into any other agreement, commitment or contract, except 
agreements, commitments or contracts for the purchase, sale or lease of goods 
or services in the ordinary course of business consistent with past practice, 
but in no event in excess of $25,000 in the aggregate;

          (h)  authorize, recommend, propose or announce an intention to 
authorize, recommend or propose, or enter into any agreement in principle or 
an agreement with respect to, any (i) plan of liquidation or dissolution, 
(ii) acquisition of a material amount of assets or securities, (iii) 
disposition of a material amount of assets or securities or (iv) material 
change in its capitalization, or enter into a material contract or any 
amendment or modification of any material contract or release or relinquish 
any material contract right;

          (i)  engage in any unusual or novel method of transacting business, 
change any accounting or Tax procedure or practice or its financial structure 
or make any Tax Election;

          (j)  take any action the taking of which, or omit to take any 
action the omission of which, would cause any of the representations and 
warranties herein to fail to be true and correct in all respects as of the 
date of such action or omission as though made at and as of the date of such 
action or omission or which would frustrate any condition to the consummation 
of the Merger; or

          (k)  commit or agree to do any of the foregoing.

                                          25
<PAGE>

          Section 5.2  No Solicitation.  CSI agrees that, prior to the 
Effective Time, except as provided below it shall not, and shall cause its 
Subsidiaries and its and its Subsidiaries' directors, officers, employees, 
agents or representatives (including, without limitation, any attorney, 
financial advisor, investment banker or accountant) not to, directly or 
indirectly, solicit, initiate, facilitate or encourage (including by way of 
furnishing or disclosing information), or take any other action to 
facilitate, any inquiries or the making of any proposal that constitutes, or 
may reasonably be expected to lead to any Transaction Proposal (as defined 
below), or enter into or maintain or continue discussions or negotiate with 
any person or entity in furtherance of such inquiries or to obtain a 
Transaction Proposal or agree to or endorse any Transaction Proposal or 
authorize or permit any of its officers, directors or employees or any of its 
Subsidiaries or any investment banker, financial advisor, attorney, 
accountant or other representative retained by it or any of its Subsidiaries 
to take any such action; provided, however, that nothing contained in this 
Agreement shall prohibit the CSI Board of Directors from, (i) furnishing 
information to or entering into discussions or negotiations with any person 
or entity that makes an unsolicited written, bona fide Transaction Proposal 
which such person or entity has such funds or commitments therefor and which 
in the reasonable judgment of the CSI Board of Directors is reasonably 
capable of consummation if, and only to the extent that (A) the CSI Board of 
Directors, after consultation with its financial advisors and after 
consultation with and based upon advice of independent legal counsel 
determines in good faith that such action is necessary for the CSI Board of 
Directors to comply with its fiduciary duties to stockholders under 
applicable law and (B) prior to taking such action CSI receives from such 
person or entity an executed confidentiality agreement containing reasonable 
and customary terms and provisions, at a minimum, at least as favorable to 
CSI as those terms and conditions contained in Section 5.3(b) below, or (ii) 
withdrawing, modifying or changing its recommendation referred to in Section 
4.3 if there exists a Transaction Proposal and the CSI Board of Directors, 
after consultation with its financial advisors and after consultation with, 
and based upon the advice of independent legal counsel, determines in good 
faith that such action is necessary for the CSI Board of Directors to comply 
with its fiduciary duties to stockholders under applicable law in connection 
with such Transaction Proposal.  CSI shall immediately cease and cause to be 
terminated any existing activities, discussions or negotiations with any 
other party with respect to any Transaction Proposal.  CSI shall immediately 
advise Omni, orally and in writing, of any inquiries or proposals relating to 
any Transaction Proposal known to it (including any amendments or 
modifications thereto), the material terms and conditions of such inquiry or 
proposal, any written materials submitted in connection therewith and the 
identity of the person or entity making such inquiry or proposal.  CSI shall 
give Omni at least one business day advance notice of any information to be 
supplied to, any person or entity making such a proposal for a Transaction 
Proposal with respect to CSI or any Subsidiary. CSI shall not enter into any 
agreements (other than a confidentiality agreement, as set forth above) with 
any person or entity making such inquiry or proposal. For purposes of this 
Agreement, "Transaction Proposal" shall mean any of the following (other than 
the transactions between CSI and SUB contemplated by this Agreement) 
involving CSI or any of its Subsidiaries:  (i) any merger, consolidation, 
share exchange, recapitalization, business combination or other similar 
transaction; (ii) any sale, lease, exchange, mortgage, pledge, transfer or 
other disposition of twenty percent (20%) or more of the assets of CSI and 
its Subsidiaries, taken as a whole, in a single transaction or series of 
transactions or any issuance of securities of CSI or any Subsidiary; (iii) 
any tender offer or exchange offer for, or the 

                                          26
<PAGE>

acquisition (or right to acquire) of "beneficial ownership" by any person, 
"group" or entity (as such terms are defined under Section 13(d) of the 
Securities Exchange Act of 1934), of twenty percent (20%) or more of the 
outstanding shares of capital stock of CSI or the filing of a registration 
statement under the Securities Act in connection therewith or (iv) any public 
announcement of a proposal, plan or intention to do any of the foregoing or 
any agreement to engage in any of the foregoing.

          Section 5.3  Access to Information.  (a) From the date of this 
Agreement until the Effective Time, CSI will provide to Omni, its lenders and 
authorized representatives (including counsel, environmental and other 
consultants, accountants and auditors) full access during reasonable hours to 
all facilities, personnel and operations and to all books and records of CSI 
and its Subsidiaries, will permit Omni to make such inspections as it may 
reasonably require (including without limitation any air, water or soil 
testing or sampling deemed necessary) and will cause its officers and those 
of its Subsidiaries to furnish Omni with such financial and operating data 
and other information with respect to its business and properties as Omni may 
from time to time reasonably request.

          (b)  Omni will hold and will cause its representatives to hold in 
confidence all documents and information furnished in connection with this 
Agreement, other than documents or information (i) available to the public, 
(ii) which are or become known by Omni from a source other than CSI or (iii) 
required by law to be disclosed.

          Section 5.4  Registration Statement and Proxy Statement. CSI shall 
file with the SEC as soon as is reasonably practicable after the date hereof 
the Proxy Statement. Such filing shall be made on a confidential basis unless 
Omni shall request otherwise.  Promptly following the clearance by the SEC of 
the Proxy Statement, Omni shall file the Registration Statement with the SEC. 
Omni and CSI shall use all commercially reasonable efforts to have the 
Proxy Statement cleared, and Registration Statement declared effective, by 
the SEC as promptly as practicable. Omni shall also use all commercially 
reasonable efforts to take any action required to be taken under applicable 
state blue sky or securities laws in connection with the issuance of the Omni 
Stock.  Omni and CSI shall promptly furnish to each other all information, 
and take such other actions, as may reasonably be requested in connection 
with any action by any of them in connection with the preceding sentence.

          Section 5.5  Stockholder's Meeting. CSI shall call a meeting of its 
stockholders to be held as promptly as practicable (and in no event more than 
45 days after the Registration Statement is declared effective) for the 
purpose of voting upon this Agreement and the Merger.  CSI shall, through its 
Board of Directors, recommend to its stockholders approval of such matters 
and shall use all commercially reasonable efforts to hold such meeting as 
soon as practicable after the date hereof. Subject to the provisions of 
clause (ii) of Section 5.2 above, CSI shall use all commercially reasonable 
efforts to solicit from its stockholders proxies in favor of such matters.  
Without limiting the generality of the foregoing, in the event the Board of 
Directors of CSI withdraws or modifies its recommendation, CSI nonetheless 
shall cause the meeting of the stockholders to be convened and a vote taken 
with respect to the Merger and the Board of Directors shall communicate to 
CSI's 

                                          27

<PAGE>

stockholders its basis for such withdrawal or modification as contemplated by 
Section 607.1103(2)(a) the FBCA.

          Section 5.6  Reasonable Efforts; Other Actions.  CSI, Omni and SUB 
each shall use all commercially reasonable efforts promptly to take, or cause 
to be taken, all other actions and do, or cause to be done, all other things 
necessary, proper or appropriate under applicable Law to consummate and make 
effective the transactions contemplated by this Agreement as promptly as 
practicable, including, without limitation, (i) the filing of Notification 
and Report Forms under the HSR Act with the Federal Trade Commission (the 
"FTC") and the Antitrust Division of the Department of Justice (the 
"Antitrust Division") and using their reasonable best efforts to respond as 
promptly as practicable to all inquiries received from the FTC or the 
Antitrust Division for additional information or documentation, (ii) the 
taking of any actions required to qualify the Merger for pooling-of-interests 
accounting treatment and as a reorganization within the meaning of Code 
Section 368(a), and (iii) the obtaining of all necessary consents, approvals 
or waivers under its material contracts.

          Section 5.7  Public Announcements.  Before issuing any press 
release or otherwise making any public statements with respect to the Merger, 
Omni, SUB and CSI will consult with each other as to its form and substance 
and shall not issue any such press release or make any such public statement 
prior to such consultation, except as may be required by law (it being agreed 
that the parties hereto are entitled to disclose all requisite information 
concerning the transaction and any filings required with the SEC or pursuant 
to the HSR Act) or the rules and regulations of Nasdaq or the NYSE, as 
applicable.

          Section 5.8  Notification of Certain Matters.  Each of CSI and Omni 
shall give prompt notice to the other party of (i) any notice of, or other 
communication relating to, a default or event which, with notice or lapse of 
time or both, would become a default, received by it or any of its 
subsidiaries subsequent to the date of this Agreement and prior to the 
Effective Time, under any contract material to the financial condition, 
properties, businesses or results of operations of CSI or Omni, as the case 
may be, and their respective subsidiaries taken as a whole to which it or any 
of its subsidiaries is a party or is subject, (ii) any notice or other 
communication from any third party alleging that the consent of such third 
party is or may be requited in connection with the transactions contemplated 
by this Agreement, (iii) any material adverse change in their respective 
financial condition, properties, businesses or results of operations or the 
occurrence of any event which is reasonably likely to result in any such 
change, or (iv) the occurrence or existence of any event which would, or 
could with the passage of time or otherwise, make any representation or 
warranty contained herein untrue; provided, however, that the delivery of 
notice pursuant to this Section 5.8 shall not limit or otherwise affect the 
remedies available hereunder to the party receiving such notice.  Each party 
shall use all commercially reasonable efforts to prevent or promptly remedy 
the same.

          Section 5.9  Indemnification.  Omni agrees that at all times after 
the Effective Time, it shall cause the Surviving Corporation and its 
subsidiaries to indemnify each person who is now, or has been at any time 
prior to the date hereof, a director or officer of CSI or any of its 

                                          28

<PAGE>

Subsidiaries, or their respective successors or assigns (individually, an 
"Indemnified Party" and collectively the "Indemnified Parties"), to the 
fullest extent permitted by law, with respect to any claim, liability, loss, 
damage, judgment, fine, penalty, amount paid in settlement or compromise, 
costs or expense (including reasonable fees and expenses of legal counsel), 
whenever asserted or claim, based in whole or in part on, or arising in whole 
or in part out of, any facts or circumstances occurring at or prior to the 
Effective Time whether commenced, asserted or claimed before or after the 
Effective Time, to the fullest extent as would have been permitted in their 
respective Articles or Certificate of Incorporation, as appropriate, or 
Bylaws consistent with applicable law.  Omni shall or shall cause the 
Surviving Corporation to, maintain in effect for not less than three years 
after the Effective Time, the current policies of directors and officers 
liability insurance maintained by CSI and its Subsidiaries as of the date 
hereof to the extent that it provides coverage for events occurring prior to 
the Effective Time of the Merger (the "D&O Insurance") for all persons who 
are directors and officers of CSI or any of its Subsidiaries on the date 
hereof; provided that Omni or the Surviving Corporation, as applicable, shall 
not be required to spend as an annual premium for such D&O Insurance an 
amount in excess of 150% of the annual premium paid for D&O Insurance in 
effect prior to the date hereof, which amount has previously been disclosed 
to Omni, but provided Omni or the Surviving Corporation, as applicable, shall 
nevertheless be obligated to provide such coverage as may be obtained for 
such amount.  Omni may substitute for such D&O Insurance, policies with 
reputable and financially sound carriers having, except as provided in the 
previous sentence, at least the same coverage and amounts thereof and 
continuing terms and conditions with respect to facts and circumstances 
occurring at or prior to the Effective Time.  The rights under this Section 
5.9 are in addition to the rights that any Indemnified Party may have under 
the Articles of Incorporation, Bylaws or other similar organizational 
documents of CSI or any Subsidiary or under applicable law. The rights under 
this Section 5.9 shall survive the Merger and are expressly intended to 
benefit each Indemnified Party.

          Section 5.10  Expenses.  Except as provided in Section 10.5 below, 
Omni and SUB, on the one hand, and CSI, on the other hand, shall bear their 
respective expenses incurred in connection with the Merger, including, 
without limitation, the preparation, execution and performance of this 
Agreement and the transactions contemplated hereby, including all fees and 
expenses of its representatives, counsel and accountants, except that (i) 
expenses incurred in printing, mailing and filing (including without 
limitation, SEC filing fees) the Proxy Statement/Prospectus shall be shared 
equally by CSI and Omni; and (ii) the filing fee payable in connection with 
the parties' compliance with the HSR Act shall be borne solely by Omni.

          Section 5.11  Affiliates. CSI shall deliver to Omni a letter 
identifying all persons who, as of the date hereof, may be deemed to be 
"affiliates" of CSI for purposes of Rule 145 under the Securities Act (the 
"Affiliates") and shall advise Omni in writing of any persons who become 
Affiliates prior to the Effective Time. CSI shall cause each person who is so 
identified as an Affiliate to deliver to Omni, no later than the earlier of 
the thirtieth (30th) day prior to the Effective Time or the date such person 
becomes an Affiliate, a written agreement substantially in the form of 
Exhibit A hereto.

          Section 5.12  Stock Exchange Listings.  Omni shall use its 
commercially 

                                          29

<PAGE>

reasonable efforts to list on the NYSE, upon official notice, the Omni Stock 
to be issued pursuant to the Merger.

          Section 5.13  State Anti-takeover Laws.  If any "fair price" or 
"control share acquisition" statute or any other statute described in Section 
4.8 hereof or other similar anti-takeover regulation shall become applicable 
to the transactions contemplated hereby, Omni and CSI and their respective 
Boards of Directors shall use their reasonable best efforts to grant such 
approvals and to take such other actions as are necessary so that the 
transactions contemplated hereby may be consummated as promptly as 
practicable on the terms contemplated hereby and shall otherwise use their 
reasonable best efforts to eliminate the effects of any such statute or 
regulation on the transactions contemplated hereby.

          Section 5.14  Voting Agreement and Consulting Agreements.  
Simultaneously with the execution and delivery of this Agreement, Brian A. 
Kahan is executing the Voting Agreement. CSI will use all commercially 
reasonable efforts to cause the persons listed on Schedule 5.14 to enter into 
consulting, employment and/or non-competition agreements containing the terms 
set forth on Schedule 5.14 and otherwise reasonably acceptable to Omni.

          Section 5.15  Combined Financial Results.  Omni covenants and 
agrees for the benefit of each Affiliate that, as promptly as practicable 
following the Effective Time and in no event later than the earlier of (i) 
ninety (90) days after the end of the calendar month in which the Effective 
Time occurs, and (ii) one hundred twenty (120) days after the Effective Time, 
Omni will publicly release the financial results of Omni and CSI for a thirty 
(30) day period following the Effective Time.  

          Section 5.16  Satisfaction of Conditions.  CSI agrees to use all 
commercially reasonable efforts to cause each of the conditions set forth in 
Article VII to Omni and SUB proceeding with the Closing to be satisfied on or 
before the Closing Date.  Omni and SUB agree to use their respective 
commercially reasonable efforts to cause each of the conditions set forth in 
Article VIII to CSI proceeding with the Closing to be satisfied on or before 
the Closing Date.

          Section 5.17 SUB.  Promptly following the formation of SUB, the 
parties will execute an amendment to this Agreement to make SUB a party 
hereto.

                                     ARTICLE VI

                 CONDITIONS TO THE OBLIGATIONS OF OMNI, SUB AND CSI

          The respective obligations of each party to effect the Merger shall 
be subject to the fulfillment at or prior to the closing of each of the 
following conditions:

          Section 6.1  Registration Statement.  The Registration Statement 
shall have become effective in accordance with the provisions of the 
Securities Act.  No stop order suspending the effectiveness of the 
Registration Statement shall have been issued by the SEC and remain in effect 
and no proceeding to that effect shall have been commenced or threatened.  
All necessary state 

                                          30

<PAGE>

securities or blue sky authorizations shall have been received.

          Section 6.2  Stockholder Approval.  The requisite vote of the 
stockholders of CSI necessary to consummate the transactions contemplated by 
this Agreement shall have been obtained.

          Section 6.3  Consents and Approvals.  All necessary consents and 
approvals of any United States or any other governmental authority required 
for the consummation of the transactions contemplated by this Agreement shall 
have been obtained, and any waiting period applicable to the consummation of 
the Merger under the HSR Act shall have expired or been terminated.

          Section 6.4  Listings.  The Omni Stock issued in the Merger shall 
have been authorized for listing on the NYSE, subject to official notice of 
issuance.

          Section 6.5  Accounting Treatment.  Each of Omni and CSI shall have 
received  letters from Ernst & Young, LLP and Omni's auditors, reasonably 
satisfactory to each of them in all respects, that the Merger will qualify 
for pooling-of-interests accounting treatment.

          Section 6.7  Tax Matters. Omni shall have received an opinion of 
Omni's counsel, in form and substance reasonably satisfactory to Omni, and 
CSI shall have received an opinion of CSI's counsel, in form and substance 
reasonably satisfactory to CSI, each dated as of the Closing Date, to the 
effect that the Merger will constitute a reorganization within the meaning of 
Code Section 368(a) and that Omni, SUB and CSI shall each be a party to that 
reorganization within the meaning of Code Section 368(b).  In rendering such 
tax opinions, such counsel may require and rely upon  reasonably requested 
representations contained in certificates of Omni, CSI and SUB.

                                    ARTICLE VII

                   CONDITIONS TO THE OBLIGATIONS OF OMNI AND SUB

          The obligation of Omni and SUB to effect the Merger and to perform 
under this Agreement is subject to the fulfillment on or before the Closing 
Date of the following additional conditions, any one or more of which may be 
waived, in writing, by Omni:

          Section 7.1  Representations Accurate. The representations and 
warranties of CSI contained herein shall be true and correct on the date of 
this Agreement and at and on the Closing Date as though such representations 
and warranties were made at and on such date, except for such untruths or 
inaccuracies which would not (without regard for any materiality qualifiers 
therein), individually or in the aggregate, have a CSI Material Adverse 
Effect.

          Section 7.2  Performance.  CSI shall have complied, in all material 
respects, with all agreements, obligations and conditions required by this 
Agreement to be complied with by it on or prior to the Closing Date.

                                          31
<PAGE>

          Section 7.3  Officer's Certificate.  Omni and SUB shall have 
received a duly executed certificate signed by the President of CSI 
certifying as to (i) compliance with the conditions set forth in Sections 7.1 
and 7.2; (ii) the accuracy and completeness of the Bylaws of CSI and the 
director and stockholder resolutions of CSI approving this Agreement, the 
Merger and the transactions contemplated hereby; and (iii) the identity and 
authority of the officers and other persons executing documents on behalf of 
CSI.

          Section 7.4  Certified Articles of Incorporation.  Omni shall have 
received a certificate of the Secretary of State of the State of Florida 
certifying the Articles of Incorporation of CSI and all amendments thereof, 
dated not more than ten (10) days prior to the Closing Date.

          Section 7.5  Good Standing.  Omni shall have received a certificate 
of good standing, or its equivalent, dated no more than ten (10) days prior 
to the Closing Date, from the state of incorporation of CSI and each 
Subsidiary and each other state in which CSI and each Subsidiary are 
qualified to do business as set forth on Schedule 4.1.

          Section 7.6 Legal Action.  No statute, rule, regulation, order, 
injunction, writ or decree shall have been enacted, entered, ordered, 
promulgated or enforced by any Governmental Authority which prohibits the 
consummation of the Merger and no legal action shall be pending or threatened 
which is reasonably likely to have a CSI Material Adverse Effect.

          Section 7.7  Consents.  Omni and SUB shall have received copies of 
consents of all third parties (x) necessary for CSI to execute, deliver and 
perform this Agreement and consummate the Merger and (y) where failure to 
obtain such consents in the aggregate would have a CSI Material Adverse 
Effect.

          Section 7.8  Dissenting Shares.  On the Closing Date, the aggregate 
number of CSI Shares with respect to which the holders shall be dissenting 
shareholders entitled to relief under Section 607.1302 of the FBCA shall not 
exceed ten percent (10%) of all outstanding CSI Shares.

          Section 7.9  Material Adverse Change.  There shall have been no 
material adverse change in the business, operations, assets, prospects, 
financial condition or results of operations of CSI and its Subsidiaries 
taken as a whole.

          Section 7.10  Agreements with Affiliates . Omni and SUB shall have 
received from each person who is an Affiliate under Section 5.11 an executed 
copy of the written agreement referred to in Section 5.11 and such agreements 
shall be in full force and effect and there shall be no breach, or in 
existence any facts which with passage of time or otherwise could constitute 
a breach, thereof.

          Section 7.11  Articles of Merger.  CSI shall have delivered to Omni 
the Articles of Merger as executed by duly authorized officers of CSI.

          Section 7.12  Employment, Consulting and Non-Competition 
Agreements. Each person set forth in Schedule 5.14 shall have entered into a 
valid and binding employment, 

                                          32
<PAGE>

consulting or non-competition agreement containing the terms set forth in 
Schedule 5.14 and otherwise on terms reasonably satisfactory to Omni.

          Section 7.13  FIRPTA Certificate.  If requested by Omni, CSI shall 
have provided Omni with a certified statement, pursuant to Section 
1.1445-2(c)(3) of the Treasury Regulations, that it is not, and has not been, 
within the last five years, a "United States real property holding 
corporation."

                                    ARTICLE VIII

                        CONDITIONS TO THE OBLIGATIONS OF CSI

          The obligations of CSI to effect the Merger and to perform under 
this Agreement is subject to the fulfillment on or before the Closing Date of 
the following additional conditions, any one or more  of which may be waived, 
in writing, by CSI:

          Section 8.1  Representations Accurate. The representations and 
warranties of Omni and SUB contained herein shall be true and correct on the 
date of this Agreement and at and on the Closing Date as though such 
representations and warranties were made at and on such date, except for such 
untruths or inaccuracies which would not (without regard for any materiality 
qualifiers therein), individually or in the aggregate, have an Omni Material 
Adverse Effect.

          Section 8.2  Performance.  Omni and SUB shall have complied, in all 
material respects, with all agreements, obligations and conditions required 
by this Agreement to be complied with by them on or prior to the Closing Date.

          Section 8.3  Compliance Certificate.  CSI shall have received a 
certificate signed by an officer of each of Omni and SUB certifying as to (i) 
compliance with the conditions set forth in Sections 8.1 and 8.2; (ii) the 
accuracy and completeness of the Bylaws of SUB and, as applicable, the 
director and stockholder resolutions adopted of Omni and SUB approving this 
Agreement, the Merger and the transactions contemplated hereby; and (iii) the 
identity and authority of the officers and other persons executing documents 
on behalf of Omni and SUB.

          Section 8.4 Legal Action.  No statute, rule, regulation, order, 
injunction, writ or decree shall have been enacted, entered, ordered, 
promulgated or enforced by any governmental entity which prohibits the 
consummation of the Merger and no legal action shall be pending or threatened 
which is reasonably likely to have an Omni Material Adverse Effect.

          Section 8.5  Material Adverse Change.  There shall have been no 
material adverse change in the business, operations, assets, prospects, 
financial condition or results of operations of Omni and its subsidiaries 
taken as a whole.

          Section 8.6  Articles of Merger.  SUB shall have delivered to CSI 
the Articles of Merger, executed by duly authorized officers of SUB.

                                          33
<PAGE>


                                     ARTICLE IX

                                      CLOSING

          Section 9.1  Time And Place.  Upon the terms and subject to the 
conditions hereof, the closing of the Merger (the "Closing") shall take place 
at the offices of Atlas, Pearlman, Trop & Borkson, P.A., as soon as 
practicable, but in no event later than 10:00 a.m., local time, on the first 
business day after the date on which each of the conditions set forth in 
Articles VI, VII and VIII (other than those conditions that by their nature 
are to be satisfied at the Closing, but subject to such conditions) have been 
satisfied or waived, in writing, by the party or parties entitled to the 
benefit of such conditions; or at such other place, at such other time, or on 
such other date as Omni, SUB and CSI may, in writing, mutually agree. The 
date on which the Closing actually occurs is herein referred to as the 
"Closing Date."

     Section 9.2  Filings at the Closing.  Upon the terms and subject to the 
conditions hereof, CSI, Omni and SUB shall cause to be executed and filed at 
the Closing the Articles of Merger and shall cause the Articles of Merger to 
be recorded in accordance with the applicable provisions of the FBCA and 
shall take any and all other lawful actions and do any and all other lawful 
things necessary to cause the Merger to become effective.

                                     ARTICLE X

                            TERMINATION AND ABANDONMENT

          Section 10.1  Termination.  This Agreement may be terminated at any 
time prior to the Effective Time, whether before or after approval by the 
stockholders of CSI or Omni:

          (a)  by mutual consent of Omni and CSI;

          (b)  by either Omni or CSI, if any court of competent jurisdiction 
in the United States or other governmental body in the United States shall 
have issued an order (other than a temporary restraining order), decree or 
ruling or taken any other action restraining, enjoining or otherwise 
prohibiting the Merger, and such order, decree, ruling or other action shall 
have become final and nonappealable; or

          (c)  by either Omni or CSI, if the stockholder approval of the 
stockholders of CSI is not obtained at a meeting of stockholders duly called 
and held therefor.

          (d)  by either Omni or CSI if the Merger shall not have been 
consummated by January 15, 1999, provided that a party in material breach of 
this Agreement may not terminate this Agreement pursuant to this Section 
10.1(d).

          Section 10.2  Termination by Omni.  This Agreement may be 
terminated and the Merger may be abandoned, at any time prior to the 
Effective Time, before or after the approval of the stockholders of CSI, by 
Omni if (a) CSI shall have failed to comply in any material respect with 

                                          34
<PAGE>

any of the covenants or agreements contained in this Agreement to be complied 
with by CSI at or prior to such date of termination, (b) there exists a 
breach of any representation or warranty of CSI contained in this Agreement 
such that the closing condition set forth in Section 7.1 would not be 
satisfied, provided, however, that, with respect to either (a) or (b), if 
such failure or breach is capable of being cured prior to the Effective Time, 
such failure or breach shall not have been cured within fifteen (15) days of 
delivery to CSI of written notice of such failure or breach, or (c) the Board 
of Directors of CSI shall withdraw, modify or change its recommendation of 
this Agreement or the Merger in a manner adverse to Omni or shall have failed 
to reaffirm its recommendation within five business days of Omni's request 
that it do so or shall have recommended or issued a neutral recommendation 
(or taken no position) with respect to any proposal in respect of a 
Transaction Proposal (as defined in Section 5.2 above).

          Section 10.3  Termination by CSI.  This Agreement may be terminated 
and the Merger may be abandoned at any time prior to the Effective Time, 
before or after the approval by the stockholders of Omni or CSI, by CSI, if 
(a) Omni or SUB shall have failed to comply in any material respect with any 
of the covenants or agreements contained in this Agreement to be complied 
with by Omni or SUB at or prior to such date of termination, (b) there exists 
a breach of any representation or warranty of Omni or SUB contained in this 
Agreement such that the closing condition set forth in Section 8.1 would not 
be satisfied, provided, however, that, with respect to either (a) or (b), if 
such failure or breach is capable of being cured prior to the Effective Time, 
such failure or breach shall not have been cured within fifteen (15) days of 
delivery to Omni or Sub of written notice of such failure or breach, or (c) 
prior to the CSI stockholder meeting, if the CSI Board of Directors, in the 
exercise of its good faith judgment as to fiduciary duties to its 
stockholders imposed by law, based upon the advice of outside counsel, 
determines that such termination is required in order to execute an agreement 
providing for the implementation of the transactions contemplated by a 
Transaction Proposal, provided, however, that (i) the Company shall have 
complied with the provisions of Section 5.2 hereof, including providing 
notice of the terms of the Transaction Proposal and (ii) at least  ten 
business days shall have elapsed after the Company has notified Omni of the 
final terms of such Transaction Proposal.  No termination of this Agreement 
by the Company shall be effective unless and until the Company has paid Omni 
any amounts owed by it pursuant to Section 10.5.

          Section 10.4  Procedure for Termination.  In the event of 
termination and abandonment of the Merger by Omni or CSI pursuant to this 
Article X, written notice thereof shall forthwith be given to the other.

          Section 10.5  Effect of Termination and Abandonment.  (a) In the 
event of termination of this Agreement and abandonment of the Merger pursuant 
to this Article X, no party hereto (or any of its directors of officers) 
shall have any liability or further obligation to any other party to this 
Agreement, except as provided in this Section 10.5 and in Sections 5.3(b) and 
5.10 hereof, and except as provided in the Stock Option Agreement. Nothing in 
this Section 10.5(a) shall relieve any party from liability for willful 
breach of this Agreement.

          (b) In the event that this Agreement is terminated by either party 
pursuant to (w) 

                                          35

<PAGE>

Section 10.1(c) following the making of a Transaction Proposal, (x) Section 
10.2(a) or (c) or (y) Section 10.3(c), then CSI shall pay Omni a fee of  $3.2 
million. Any monies owed by CSI to Omni in accordance with the preceding 
sentence shall be payable by wire transfer of same day funds either on the 
date contemplated in the last sentence of Section 10.3 if applicable or, 
otherwise, within two business days after such amount becomes due.  

     In the event that this Agreement is terminated by Omni pursuant to 
Section 10.2(b), then CSI shall reimburse Omni for its reasonable 
out-of-pocket expenses incurred in connection with this Agreement and the 
transactions contemplated hereby.

     In the event that this Agreement is terminated by CSI pursuant to 
Section 10.3(a) or (b), then Omni shall reimburse CSI for its reasonable 
out-of-pocket expenses incurred in connection with this Agreement and the 
transactions contemplated hereby.

     CSI acknowledges that the agreements contained in this Section 10.5(b) 
are an integral part of the transactions contemplated in this Agreement, and 
that, without these agreements, Omni would not enter into this Agreement; 
accordingly, if CSI fails to promptly pay the amount due pursuant to this 
Section 10.5(b), and, in order to obtain such payment, Omni commences a suit 
which results in a judgment against CSI for the fee set forth in this Section 
10.5(b), CSI shall pay to Omni its costs and expenses (including attorneys' 
fees) in connection with such suit, together with interest on the amount of 
the fee at the rate of 12% per annum from the date such fee was required to 
be paid.

                                     ARTICLE XI

                                   SURVIVABILITY

          Section 11.1  Survival of Representations and Warranties.  The 
representations and warranties of CSI contained herein or in any certificate 
or other document delivered prior to Closing shall not survive the Closing.  
The representations and warranties of Omni and SUB contained herein or in any 
certificate or other document delivered prior to Closing shall not survive 
the Closing.

                                    ARTICLE XII

                                   MISCELLANEOUS

          Section 12.1  Notices.  All notices shall be in writing delivered 
as follows:

               (a)  If to Omni or SUB, to:

                    Omnicare, Inc.
                    2800 Chemed Center
                    255 East Fifth Street
                    Cincinnati, Ohio 45203

                                          36
<PAGE>

                    Attention: Cheryl D. Hodges
                    Telecopy: 513-762-6678

                    With a copy to:

                    Dewey Ballantine LLP
                    1301 Avenue of the Americas
                    New York, New York 10019
                    Attn: Morton A. Pierce and Richard D. Pritz
                    Telecopy: 212-259-6333

               (b)  If to CSI, to:

                    CompScript, Inc.
                    1225 Broken Sound Parkway, N.W.
                    Boca Raton, Florida  33487
                    Attn:     Brian A. Kahan, President
                    Telecopy: 561-994-6104

                    With a copy to:

                    Atlas, Pearlman, Trop & Borkson, P.A.
                    200 East Las Olas Boulevard, Suite 1900
                    Ft. Lauderdale, Florida  33301
                    Attn:  Joel D. Mayersohn, Esq.
                    Telecopy: 954-766-7800

or to such other address as may have been designated in a prior notice 
pursuant to this Section.  Notices shall be deemed to be effectively served 
and delivered upon receipt.

          Section 12.2  Binding Effect.  Except as may be otherwise provided 
herein, this Agreement will be binding upon and inure to the benefit of the 
parties hereto and their respective successors and permitted assigns, but 
neither this Agreement nor any of the rights or obligations hereunder shall 
be assigned by any of the parties hereto without the prior written consent of 
the other parties. Except as otherwise specifically provided in this 
Agreement, nothing in this Agreement is intended or will be construed to 
confer on any person other than the parties hereto any rights or benefits 
hereunder.

          Section 12.3  Headings.  The headings in this Agreement are 
intended solely for convenience of reference and will be given no effect in 
the construction or interpretation of this Agreement.

          Section 12.4  Exhibits and Schedules.  The Exhibits and Schedules 
referred to in this Agreement will be deemed to be a part of this Agreement.  

                                          37
<PAGE>


          Section 12.5  Counterparts.  This Agreement may be executed in 
multiple counterparts, each of which will be deemed an original, and all of 
which together will constitute one and the same document.

          Section 12.6  Governing Law.  This Agreement will be governed by 
and construed under Delaware law, without regard to conflict of laws 
principles thereof, except that matters relating to the validity and effects 
of the Merger and the fiduciary obligations of the directors of CSI shall be 
governed by the applicable provisions of the FBCA.

          Section 12.7  Waivers.  Compliance with the provisions of this 
Agreement may be waived only by a written instrument specifically referring 
to this Agreement and signed by the party waiving compliance.  No course of 
dealing, nor any failure or delay in exercising any right, will be construed 
as a waiver, and no single or partial exercise of a right will preclude any 
other or further exercise of that or any other right.

          Section 12.8  Pronouns.  The use of a particular pronoun herein 
will not be restrictive as to gender or number but will be interpreted in all 
cases as the context may require.

          Section 12.9  Time Periods.  Any action required hereunder to be 
taken within a certain number of days will be taken within that number of 
calendar days; provided, however, that if the last day for taking such action 
falls on a weekend or a holiday, the period during which such action may be 
taken will be automatically extended to the next business day.

          Section 12.10  Modification.  No supplement, modification or 
amendment of this Agreement will be binding unless made in a written 
instrument that is signed by all of the parties hereto and that specifically 
refers to this Agreement.  

          Section 12.11  Entire Agreement.  This Agreement and the agreements 
and documents referred to in this Agreement or delivered hereunder are the 
exclusive statement of the agreement among the parties concerning the subject 
matter hereof. All negotiations among the parties are merged into this 
Agreement, and there are no representations, warranties, covenants, 
understandings, or agreements, oral or otherwise, in relation thereto among 
the parties other than those incorporated herein and to be delivered 
hereunder.  

          Section 12.12  Severability.  If any one or more of the provisions 
of this Agreement shall be held to be invalid, illegal or unenforceable, the 
validity, legality or enforceability of the remaining provisions of this 
Agreement shall not be affected thereby.  To the extent permitted by 
applicable law, each party waives any provision of law which renders any 
provision of this Agreement invalid, illegal or unenforceable in any respect.

          Section 12.13  Interpretation.  As used herein, a subsidiary of an 
entity shall mean any corporation or other organization, whether incorporated 
or unincorporated, of which such entity directly or indirectly owns or 
controls at least a majority of the securities or other interests 

                                          38
<PAGE>

having by their terms ordinary voting power to elect a majority of the board 
of directors or others performing similar functions with respect to such 
corporation or other organization, or any organization of which such entity 
is a general partner. As used in this Agreement, "includes," "including" or 
words of similar import shall be deemed to be followed by "without 
limitation." The words "hereof", "herein" and "hereunder" and words of 
similar import when used in this Agreement shall refer to this Agreement as a 
whole and not to any particular provision of this Agreement.

                                          39
<PAGE>



          IN WITNESS WHEREOF, the parties hereto have caused this Agreement 
to be signed by their respective duly authorized officers as of the date 
first above written.

                                               COMPSCRIPT, INC.


                                               By: /s/ Brian A. Kahan
                                               -------------------------------
                                               Name:  Brian A. Kahan
                                               Title: Chief Executive Officer



                                               OMNICARE, INC.


                                               By:  /s/  Joel F. Gemunder 
                                               -------------------------------
                                               Name:   Joel F. Gemunder
                                               Title:  President


                                          40


<PAGE>
                                                                    Exhibit 2

                               STOCK OPTION AGREEMENT

            STOCK OPTION AGREEMENT, dated as of February 23, 1998 (the 
"Agreement"), between OMNICARE, INC., a Delaware corporation ("Grantee"), and 
COMPSCRIPT, INC., a Florida corporation ("Grantor").

            WHEREAS, Grantee and Grantor are entering into an Agreement and 
Plan of Merger, dated as of the date hereof (the "Merger Agreement"), which 
provides, among other things, for the merger of Grantor with and into a wholly 
owned subsidiary of Grantee (the "Merger");

            WHEREAS, as a condition to their willingness to enter into the 
Merger Agreement, Grantee has requested that Grantor grant to Grantee an 
option to purchase up to 2,800,000 (the "Option Number") shares of Common 
Stock, par value $.0001 per share, of Grantor (the "Common Stock"), upon the 
terms and subject to the conditions hereof; and

            WHEREAS, in order to induce Grantee to enter into the Merger 
Agreement, Grantor is willing to grant Grantee the requested option.

            NOW, THEREFORE, in consideration of the premises and the mutual 
covenants and agreements set forth herein, the parties hereto agree as 
follows: 

            1. The Option; Exercise; Adjustments; Payment of Spread. 

            (a) Subject to the other terms and conditions set forth herein, 
Grantor hereby grants to Grantee an irrevocable option (the "Option") to 
purchase up to the Option Number shares of Common Stock (the "Shares") at a 
cash purchase price equal to $4.50 per share (the "Purchase Price"). The 
Option may be exercised by Grantee, in whole or in part, at any time, or from 
time to time, following the occurrence of one of the events set forth in 
Section 2(c) hereof, and prior to the termination of the Option in accordance 
with the terms of this Agreement.

            (b) In the event Grantee wishes to exercise the Option, Grantee 
shall send a written notice to Grantor (the "Stock Exercise Notice") 
specifying a date (subject to the HSR Act, as defined below) not later than 10 
business days and not earlier than three business days following the date such 
notice is given for the closing of such purchase. In the event of any change 
in the number of issued and outstanding shares of Common Stock by reason of 
any stock dividend, stock split, split-up, recapitalization, merger or other 
change in the corporate or capital structure of Grantor, the number of Shares 
subject to this Option and the purchase price per Share shall be appropriately 
adjusted to restore Grantee to its rights hereunder, including its right to 
purchase Shares representing 19.9% of the capital stock of Grantor entitled to 
vote generally for the election of the directors of Grantor which is issued 
and outstanding immediately prior to the exercise of the Option at an 
aggregate purchase price equal to the Purchase Price multiplied by the Option 
Number. 

<PAGE>

            (c) If at any time the Option is then exercisable pursuant to the 
terms of Section 1(a) hereof, Grantee may elect, in lieu of exercising the 
Option to purchase Shares provided in Section 1(a) hereof, to send a written 
notice to Grantor (the "Cash Exercise Notice") specifying a date not later 
than 20 business days and not earlier than 10 business days following the date 
such notice is given on which date Grantor shall pay to Grantee an amount in 
cash equal to the Spread (as hereinafter defined) multiplied by all or such 
portion of the Shares subject to the Option as Grantee shall specify. As used 
herein "Spread" shall mean the excess, if any, over the Purchase Price of the 
higher of (x) if applicable, the highest price per share of Common Stock 
(including any brokerage commissions, transfer taxes and soliciting dealers' 
fees) paid or proposed to be paid by any person pursuant to one of the 
transactions enumerated in Section 2(c) hereof (the "Alternative Purchase 
Price") or (y) the average of the closing prices (or the average of the 
closing bid and asked prices if closing prices are unavailable) of the shares 
of Common Stock as reported on Nasdaq on the last trading day immediately 
prior to the date of the Cash Exercise Notice (the "Closing Price"). If the 
Alternative Purchase Price includes any property other than cash, the 
Alternative Purchase Price shall be the sum of (i) the fixed cash amount, if 
any, included in the Alternative Purchase Price plus (ii) the fair market 
value of such other property. If such other property consists of securities 
with an existing public trading market, the average of the closing prices (or 
the average of the closing bid and asked prices if closing prices are 
unavailable) for such securities in their principal public trading market on 
the five trading days ending five days prior to the date of the Cash Exercise 
Notice shall be deemed to equal the fair market value of such property. If 
such other property consists of something other than cash or securities with 
an existing public trading market and, as of the payment date for the Spread, 
agreement on the value of such other property has not been reached, the 
Alternative Purchase Price shall be deemed to equal the Closing Price. Upon 
exercise of its right to receive cash pursuant to this Section 1(c), the 
obligations of Grantor to deliver Shares pursuant to Section 3 shall be 
terminated with respect to such number of Shares for which Grantee shall have 
elected to be paid the Spread.  Notwithstanding the foregoing, the Spread 
shall not be payable unless and until (i) the Board of Directors of the 
Company shall have recommended a transaction contemplated by Section 2(c) 
hereof  ("Another Transaction") or shall have failed to reject (including by 
taking no position with respect to) Another Transaction, (ii) the Company 
shall have entered into an agreement in respect of Another Transaction, (iii) 
an event set forth in Section 2(c)(vi) shall have occurred, (iv) the Company 
shall have materially breached its covenants herein or in the Merger Agreement 
or (v) Another Transaction shall have been consummated.

            2. Conditions to Delivery of Shares. The Grantor's obligation to 
deliver Shares upon exercise of the Option is subject only to the conditions 
that:

                (a) No preliminary or permanent injunction or other order 
            issued by any federal or state court of competent jurisdiction in 
            the United States prohibiting the delivery of the Shares shall be 
            in effect; and 

                (b) Any applicable waiting periods under the Hart-Scott-Rodino 
            Antitrust 

                                          2
<PAGE>

            Improvements Act of 1976 (the "HSR Act") shall have expired or 
            been terminated; and

                (c)(i) any person (other than Grantee or any of its 
            subsidiaries) shall have commenced (as such term is defined in 
            Rule 14d-2 under the  Securities Exchange Act of 1934 (the 
            "Exchange Act")) a tender offer, or  shall have filed a 
            registration statement under the Securities Act of 1933  (the 
            "Securities Act") with respect to an exchange offer, to purchase 
            any  shares of Common Stock such that, upon consummation of such 
            offer, such  person or a "group" (as such term is defined under 
            the Exchange Act) of  which such person is a member shall have 
            acquired beneficial ownership (as such term is defined in Rule 
            13d-3 of the Exchange Act), or the right to acquire beneficial 
            ownership, of 15 percent or more of the then outstanding Common 
            Stock; (ii) any person (other than  Grantee or any of its 
            subsidiaries) shall have publicly announced or delivered to 
            Grantor a proposal, or disclosed publicly or to Grantor an  
            intention to make a proposal, to purchase 15% or more of the 
            assets or any  equity securities of, or to engage in a merger, 
            reorganization, tender  offer, share exchange, consolidation or 
            similar transaction involving the  Grantor or any of its 
            subsidiaries (an "Acquisition Transaction"); (iii)  Grantor or any 
            of its subsidiaries shall have authorized, recommended,  proposed 
            or publicly announced an intention to authorize, recommend or  
            propose, or entered into, an agreement, including without 
            limitation, an  agreement in principle, with any person (other 
            than Grantee or any of its  subsidiaries) to effect or provide for 
            an Acquisition Transition; (iv) any  person shall solicit proxies 
            or consents or announce a bona fide intention  to solicit proxies 
            or consents from Grantor's stockholders (x) relating to directors, 
            (y) in opposition to the Merger, the Merger Agreement or any  
            related transactions or (z) relating to an Acquisition Transaction 
            (other  than solicitations of stockholders seeking approval of the 
            Merger, the  Merger Agreement or any related transactions);  (v) 
            any person shall have made a Transaction Proposal (as defined in 
            the Merger Agreement); or (vi) any person (other  than Grantee or 
            any of its subsidiaries) shall have acquired beneficial  ownership 
            (as such term is defined in Rule 13d-3 under the Exchange Act)  or 
            the right to acquire beneficial ownership of, or any "group" (as 
            such  term is defined under the Exchange Act) shall have been 
            formed which beneficially owns or has the right to acquire 
            beneficial ownership of,  shares of Common Stock (other than trust 
            account shares) aggregating 15  percent or more of the then 
            outstanding Common Stock. As used in this  Agreement, "person" 
            shall have the meaning specified in Sections 3(a)(9)  and 13(d)(3) 
            of the Exchange Act. 
     
            3. The Closing. (a) Any closing hereunder shall take place on the 
date specified by Grantee in its Stock Exercise Notice or Cash Exercise 
Notice, as the case may be, at 9:00 a.m., local time, at the offices of Dewey 
Ballantine LLP, 1301 Avenue of the Americas, New York, New York, or, if the 
conditions set forth in Section 2(a) or (b) have not then been satisfied, on 
the second business day following the satisfaction of such conditions, or at 
such other time and place as the parties hereto may agree (the "Closing 
Date"). On the Closing Date, (i) in the event of a closing pursuant to Section 
1(b) hereof, 

                                          3
<PAGE>

Grantor will deliver to Grantee a certificate or certificates, representing 
the Shares in the denominations designated by Grantee in its Stock Exercise 
Notice and Grantee will purchase such Shares from Grantor at the price per 
Share equal to the Purchase Price or (ii) in the event of a closing pursuant 
to Section 1(c) hereof, Grantor will deliver to Grantee cash in an amount 
determined pursuant to Section 1(c) hereof. Any payment made by Grantee to 
Grantor, or by Grantor to Grantee, pursuant to this Agreement shall be made by 
certified or official bank check or by wire transfer of immediately available 
funds to a bank designated by the party receiving such funds.

            (b) The certificates representing the Shares shall bear an 
appropriate legend relating to the fact that such Shares have not been 
registered under the Securities Act. 

            4. Representations and Warranties of Grantor. The Grantor 
represents and warrants to Grantee that (a) Grantor is a corporation duly 
organized, validly existing and in good standing under the laws of the State 
of Florida and has the requisite corporate power and authority to enter into 
and perform this Agreement; (b) the execution and delivery of this Agreement 
by Grantor and the consummation by it of the transactions contemplated hereby 
have been duly authorized by the Board of Directors of Grantor and this 
Agreement has been duly executed and delivered by a duly authorized officer of 
Grantor and constitutes a valid and binding obligation of Grantor, enforceable 
in accordance with its terms, subject to bankruptcy, insolvency, fraudulent 
transfer, reorganization, moratorium and similar laws of general applicability 
relating to or affecting creditors' rights and to general equity principles; 
(c) Grantor has taken all necessary corporate action to authorize and reserve 
the Shares issuable upon exercise of the Option and the Shares, when issued 
and delivered by Grantor upon exercise of the Option and paid for by Grantee 
as contemplated hereby, will be duly authorized, validly issued, fully paid 
and non-assessable and free of preemptive rights; (d) except as otherwise 
required by the HSR Act, the execution and delivery of this Agreement by 
Grantor and the consummation by it of the transactions contemplated hereby do 
not require the consent, waiver, approval or authorization of or any filing 
with any person or public authority and will not violate, result in a breach 
of or the acceleration of any obligation under, or constitute a default under, 
any provision of Grantor's charter or by-laws, or any material indenture, 
mortgage, lien, lease, agreement, contract, instrument, order, law, rule, 
regulation, judgment, ordinance, or decree, or restriction by which Grantor or 
any of its subsidiaries or any of their respective properties or assets is 
bound; (e) Grantor (i) will not, by charter amendment or through 
reorganization, consolidation, merger, dissolution or sale of assets, or by 
any other voluntary act, avoid or seek to avoid the observance or performance 
of any of the covenants, stipulations or conditions to be observed or 
performed hereunder by Grantor and (ii) will promptly take all action provided 
herein to protects the rights of Grantee against dilution as set forth in 
Section 1(b) hereof and (f) no "fair price", "moratorium", "control share 
acquisition," "interested shareholder" or other form of antitakeover statute 
or regulation, including without limitation, Sections 607.0901 or 607.0902 of 
the Florida Business Corporation Act, or similar provision contained in the 
charter or by-laws of Grantor, is or shall be applicable to the acquisition of 
Shares pursuant to this Agreement.

                                          4
<PAGE>


            5. Representations and Warranties of Grantee. The Grantee 
represents and warrants to Grantor that (a) the execution and delivery of this 
Agreement by Grantee and the consummation by it of the transactions 
contemplated hereby have been duly authorized by all necessary corporate 
action on the part of Grantee and this Agreement has been duly executed and 
delivered by a duly authorized officer of Grantee and constitutes a valid and 
binding obligation of Grantee; and (b) Grantee is acquiring the Option and, if 
and when it exercises the Option, will be acquiring the Shares issuable upon 
the exercise thereof for its own account and not with a view to distribution 
or resale in any manner which would be in violation of the Securities Act.

            6. Listing of Shares; Filings; Governmental Consents. Grantor will 
promptly file an application to list the Shares on Nasdaq and will use its 
reasonable best efforts to obtain approval of such listing and to effect all 
necessary filings by Grantor under the HSR Act; provided, however, that if 
Grantor is unable to effect such listing on Nasdaq by the Closing Date, 
Grantor will nevertheless be obligated to deliver the Shares upon the Closing 
Date. Each of the parties hereto will use its reasonable best efforts to 
obtain consents of all third parties and governmental authorities, if any, 
necessary to the consummation of the transactions contemplated.

            7. Sale of Shares. At any time prior to the first anniversary of 
the termination of the Merger Agreement in accordance with its terms (the 
"Merger Termination Date"), Grantee shall have the right to sell (the "Sale 
Right") to Grantor all, but not less than all, of the Shares at the greater of 
(i) the Purchase Price, or (ii) the average of the last sales prices for 
shares of Common Stock on the five trading days ending five days prior to the 
date Grantee gives written notice of its intention to exercise the Sale Right. 
If Grantee does not exercise the Sale Right prior to the first anniversary of 
the Merger Termination Date, the Sale Right terminates. In the event Grantee 
wishes to exercise the Sale Right, Grantee shall send a written notice to 
Grantor specifying a date not later than 20 business days and not earlier than 
10 business days following the date such notice is given for the closing of 
such sale. The Sale Right will not be available if the Merger Agreement is 
terminated pursuant to Section 10.1 (other than Section 10.1(c) thereof) or 
Section 10.2(b), 10.3(a) or (b) thereof.

            8. Registration Rights. (a) In the event that Grantee shall desire 
to sell any of the Shares, Grantor will cooperate with Grantee and any 
underwriters in registering such Shares for resale, including, without 
limitation, promptly filing a registration statement which complies with the 
requirements of applicable federal and state securities laws, and entering 
into an underwriting agreement with such underwriters upon such terms and 
conditions as are customarily contained in underwriting agreements with 
respect to secondary distributions; provided that Grantor shall not be 
required to have declared effective more than two registration statements 
hereunder and shall be entitled to delay the filing or effectiveness of any 
registration statement for up to 60 days if the offering would, in the 
judgment of the Board of Directors of Grantor, require premature disclosure of 
any material corporate development or material transaction involving Grantor 
or interfere with any previously planned securities offering by the Company.

                                          5
<PAGE>


            (b) If the Common Stock is registered pursuant to the provisions 
of this Section 8, Grantor agrees (i) to furnish copies of the registration 
statement and the prospectus relating to the Shares covered thereby in such 
numbers as Grantee may from time to time reasonably request and (ii) if any 
event shall occur as a result of which it becomes necessary to amend or 
supplement any registration statement or prospectus, to prepare and file under 
the applicable securities laws such amendments and supplements as may be 
necessary to keep available for at least 45 days a prospectus covering the 
Common Stock meeting the requirements of such securities laws, and to furnish 
Grantee such numbers of copies of the registration statement and prospectus as 
amended or supplemented as may reasonably be requested. The Grantor shall bear 
the cost of the registration, including, but not limited to, all registration 
and filing fees, printing expenses, and fees and disbursements of counsel and 
accountants for Grantor, except that Grantee shall pay the fees and 
disbursements of its counsel, and the underwriting fees and selling 
commissions applicable to the shares of Common Stock sold by Grantee. The 
Grantor shall indemnify and hold harmless (i) Grantee, its affiliates and its 
officers and directors and (ii) each underwriter and each person who controls 
any underwriter within the meaning of the Securities Act or the Securities 
Exchange Act of 1934 (collectively, the "Underwriters") ((i) and (ii) being 
referred to as "Indemnified Parties") against any losses, claims, damages, 
liabilities or expenses, to which the Indemnified Parties may become subject, 
insofar as such losses, claims, damages, liabilities (or actions in respect 
thereof) and expenses arise out of or are based upon any untrue statement or 
alleged untrue statement of any material fact contained or incorporated by 
reference in any registration statement filed pursuant to this paragraph, or 
arise out of or are based upon the omission or alleged omission to state 
therein a material fact required to be stated therein or necessary to make the 
statements therein not misleading; provided, however, that Grantor will not be 
liable in any such case to the extent that any such loss, liability, claim, 
damage or expense arises out of or is based upon an untrue statement or 
alleged untrue statement in or omission or alleged omission from any such 
documents in reliance upon and in conformity with written information 
furnished to Grantor by the Indemnified Parties expressly for use or 
incorporation by reference therein. 

            (c) The Grantee and the Underwriters shall indemnify and hold 
harmless Grantor, its affiliates and its officers and directors against any 
losses, claims, damages, liabilities or expenses to which Grantor, its 
affiliates and its officers and directors may become subject, insofar as such 
losses, claims, damages, liabilities (or actions in respect thereof) and 
expenses arise out of or are based upon any untrue statement of any material 
fact contained or incorporated by reference in any registration statement 
filed pursuant to this paragraph, or arise out of or are based upon the 
omission or alleged omission to state therein a material fact required to be 
stated therein or necessary to make the statements therein not misleading, in 
each case to the extent, but only to the extent, that such untrue statement or 
alleged untrue statement or omission or alleged omission was made in reliance 
upon and in conformity with written information furnished to Grantor by 
Grantee or the Underwriters, as applicable, specifically for use or 
incorporation by reference therein.

            9. Expenses. Each party hereto shall pay its own expenses incurred 
in connection 

                                          6
<PAGE>

with this Agreement, except as otherwise specifically provided herein.

            10. Specific Performance. The Grantor acknowledges that if Grantor 
fails to perform any of its obligations under this Agreement immediate and 
irreparable harm or injury would be caused to Grantee for which money damages 
would not be an adequate remedy. In such event, Grantor agrees that Grantee 
shall have the right, in addition to any other rights it may have, to specific 
performance of this Agreement.

            11. Notice. All notices, requests, demands and other 
communications hereunder shall be in writing deemed to have been duly given 
upon receipt by the person at the address set forth below, or such other 
address as may be designated in writing hereafter, in the same manner, by such 
person:

               If to Grantee:

               Omnicare, Inc.
               2800 Chemed Center
               255 East Fifth Street
               Cincinnati, Ohio   45203
               Attention:   Cheryl D. Hodges
               Telecopy: 513-762-6678

               With a copy to:

               Dewey Ballantine LLP
               1301 Avenue of the Americas
               New York, New York 10019
               Attn:  Morton A. Pierce and Richard D. Pritz
               Telecopy: (212) 259-6333

               If to Grantor:

               CompScript, Inc.
               1225 Broken Sound Parkway, N.W.
               Boca Raton, Florida  33487
               Attn:     Brian A. Kahan, President
               Telecopy:  561-994-6104

               With a copy to:

               Atlas, Pearlman, Trop & Borkson, P.A.
               200 East Las Olas Boulevard, Suite 1900
               Ft. Lauderdale, Florida  33301
               Attn:  Joel D. Mayersohn
               Telecopy: 954-766-7800


                                          7
<PAGE>

            12. Parties in Interest. This Agreement shall inure to the benefit 
of and be binding upon the parties named herein and their respective 
successors and assigns; provided, however, that such successor in interest or 
as signs shall agree to be bound by the provisions of this Agreement. Nothing 
in this Agreement, express or implied, is intended to confer upon any person 
other than Grantor or Grantee, or their successors or assigns, any rights or 
remedies under or by reason of this Agreement.

            13. Entire Agreement; Amendments. This Agreement, together with 
the Merger Agreement and the other documents referred to therein, contains the 
entire agreement between the parties hereto with respect to the subject matter 
hereof and supersedes all prior and contemporaneous agreements and 
understandings, oral or written, with respect to such transactions. This 
Agreement may not be changed, amended or modified orally, but may be changed 
only by an agreement in writing signed by the party against whom any waiver, 
change, amendment, modification or discharge may be sought.

            14. Assignment. No party to this Agreement may assign any of its 
rights or obligations under this Agreement without the prior written consent 
of the other party hereto, except that Grantee may assign its rights and 
obligations hereunder to any of its direct or indirect wholly owned 
subsidiaries, but no such transfer shall relieve Grantee of its obligations 
hereunder if such transferee does not perform such obligations.

            15. Headings. The section headings herein are for convenience only 
and shall not affect the construction of this Agreement.

            16. Counterparts. This Agreement may be executed in any number of 
counterparts, each of which, when executed, shall be deemed to be an original 
and all of which together shall constitute one and the same document. 

            17. Governing Law. This Agreement shall be governed by and 
construed in accordance with the laws of the State of Delaware (regardless of 
the laws that might other wise govern under applicable Delaware principles of 
conflicts of law).

            THE GRANTOR AGREES THAT, IN CONNECTION WITH ANY LEGAL SUIT OR 
PROCEEDING ARISING WITH RESPECT TO THIS AGREEMENT, IT SHALL SUBMIT TO THE 
JURISDICTION OF THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE 
AND AGREES TO VENUE IN SUCH COURTS. THE GRANTOR HEREBY APPOINTS THE SECRETARY 
OF THE GRANTOR AS ITS AGENT FOR SERVICE OF PROCESS FOR PURPOSES OF THE 
FOREGOING SENTENCE ONLY.

            18. Termination. The right to exercise the Option granted pursuant 
to this Agreement shall terminate at the earlier of (i) the Effective Time (as 
defined in the Merger Agreement); (ii) 90 days after the Merger Termination 
Date (the date referred to in this clause (ii) being hereinafter referred to 
as the "Option Termination Date"), unless the Merger Agreement was terminated 
pursuant to Sections 10.3(a) or (b) or, if no Takeover Proposal was made, 
Sections 10.1 or 10.2(b) thereof and, (iii) 12 months after 

                                          8
<PAGE>

the date hereof; provided that, if the Option cannot be exercised or the 
Shares cannot be delivered to Grantee upon such exercise because the 
conditions set forth in Section 2(a) or (b) hereof have not yet been 
satisfied, the Option Termination Date shall be extended until thirty days 
after such impediment to exercise or delivery has been removed.

            All representations and warranties contained in this Agreement 
shall survive delivery of and payment for the Shares.

            19. Profit Limitation. (a) Notwithstanding any other provision of 
this Agreement, in no event shall Grantee's Total Profit (as hereinafter 
defined) exceed $3.3 million and, if it otherwise would exceed such amount, 
Grantee, at its sole election, shall either (a) deliver to Grantor for 
cancellation Shares previously purchased by Grantee, (b) pay cash or other 
consideration to Grantor or (c) undertake any combination thereof, so that 
Grantee's Total Profit shall not exceed $3.3 million after taking into account 
the foregoing actions.

            Notwithstanding any other provision of this Agreement, this Option 
may not be exercised for a number of Shares as would, as of the date of the 
Stock Exercise Notice, result in a Notional Total Profit (as defined below) of 
more than $3.3 million and, if exercise of the Option otherwise would exceed 
such amount, Grantee, at its discretion, may increase the Purchase Price for 
that number of Shares set forth in the Stock Exercise Notice so that the 
Notional Total Profit shall not exceed $3.3 million; provided, that nothing in 
this sentence shall restrict any exercise of the Option permitted hereby on 
any subsequent date at the Purchase Price set forth in Section 1(a) hereof. 

            As used herein, the term "Total Profit" shall mean the aggregate 
amount (before taxes) of the following: (i) the amount of cash received by 
Grantee pursuant to Section 10.5 of the Merger Agreement and Section 1(c) 
hereof, (ii) (x) the amount received by Grantee pursuant to Grantor's 
repurchase of Shares pursuant to Section 7 hereof, less (y) Grantee's purchase 
price for such Shares, and (iii) (x) the net cash amounts received by Grantee 
pursuant to the sale of Shares (or any other securities into which such Shares 
are converted or exchanged) to any unaffiliated party, less (y) Grantee's 
purchase price for such Shares.

            As used herein, the term "Notional Total Profit" with respect to 
any number of Shares as to which Grantee may propose to exercise this Option 
shall be the Total Profit determined as of the date of the Stock Exercise 
Notice assuming that this Option were exercised on such date for such number 
of Shares and assuming that such Shares, together with all other Shares held 
by Grantee and its affiliates as of such date, were sold for cash at the 
closing market price for the Common Stock as of the close of business on the 
preceding trading day (less customary brokerage commissions).

            20. Severability. If any term, provision, covenant or restriction 
of this Agreement is held by a court of competent jurisdiction 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.

                                          9
<PAGE>


            21. Public Announcement. The Grantee will consult with Grantor and 
Grantor will consult with Grantee before issuing any press release with 
respect to the initial announcement of this Agreement, the Option or the 
transactions contemplated hereby and neither party shall issue any such press 
release prior to such consultation except as may be required by law or the 
applicable rules and regulations of  Nasdaq or the NYSE.

                                          10
<PAGE>


            IN WITNESS WHEREOF, Grantee and Grantor have caused this Agreement 
to be duly executed and delivered on the day and year first above written.

                              
                              OMNICARE, INC.


                              By:  /s/ Joel F. Gemunder          
                                  -------------------------
                              Name: Joel F. Gemunder
                              Title:  President


                              COMPSCRIPT, INC.


                              By: /s/ Brian A. Kahan        
                                  -------------------------
                              Name:  Brian A. Kahan
                              Title:  Chief Executive Officer



<PAGE>
                                                                   Exhibit 3

                               VOTING AGREEMENT

     VOTING AGREEMENT, dated as of February 23, 1998, between Brian A. Kahan 
(the "Shareholder") and Omnicare, Inc., a Delaware corporation ("Omni").

     A.   The Shareholder is the record and beneficial owner of 4,332,453 
issued and outstanding shares (together with any shares acquired after the 
date hereof, the "Shares") of common stock, $.0001 par value, of CompScript, 
Inc., a Florida corporation ("CSI" or the "Company"), which Shares represent 
approximately 31% of the currently issued and outstanding shares of CSI's 
common stock.

     B.   In order to induce Omni to enter into the Agreement and Plan of 
Merger, dated as of the date hereof (the "Merger Agreement"), by and between 
CSI and Omni, Omni has requested that the Shareholder enter into this 
Agreement with respect to the Shares.

     C.   Unless otherwise defined herein, all capitalized terms used in this 
Agreement shall have the meanings given to them in the Merger Agreement.

     For good and valuable consideration, the adequacy and receipt of which 
are hereby acknowledged, and in order to induce Omni to enter into the Merger 
Agreement, Omni and the Shareholder hereby agree as follows:

     1.   Covenants. 

     (a)  At any meeting of shareholders of the Company called to vote upon 
the Merger and the Merger Agreement or at any adjournment thereof or in any 
other circumstances upon which a vote, consent or other approval (including 
by written consent) with respect to the Merger and the Merger Agreement is 
sought, the Shareholder shall, including by initiating a written consent 
solicitation if requested by Omni, vote (or cause to be voted) the 
Shareholder's Shares in favor of the Merger, the adoption by the Company of 
the Merger Agreement and the approval of the other transactions contemplated 
by the Merger Agreement.

     (b)  At any meeting of shareholders of the Company or at any adjournment 
thereof or in any other circumstances upon which the Shareholder's vote, 
consent or other approval is sought, the Shareholder shall vote (or cause to 
be voted) such Shareholder's Shares against (i) any merger agreement or 
merger (other than the Merger Agreement and the Merger), consolidation, 
combination, sale of substantial assets, reorganization, recapitalization, 
dissolution, liquidation or winding up of or by the Company or its 
Subsidiaries or any other Transaction Proposal (as defined in the Merger 
Agreement) (collectively, "Alternative Transactions") or (ii) any amendment 
of the Company's Amended and Restated Articles of Incorporation or by-laws or 
other proposal or transaction involving the Company or any of its 
subsidiaries, which amendment or other proposal or transaction would in any 
manner impede, frustrate, prevent or nullify, the Merger, the Merger 
Agreement or any of the other transactions contemplated by the Merger 
Agreement (collectively, "Frustrating Transactions").

                                    

<PAGE>

     (c)  The Shareholder shall not, (i) sell, transfer, pledge, assign or 
otherwise dispose of, or enter into any contract, option or other arrangement 
(including any profit sharing arrangement) or understanding with respect to 
the sale, transfer, pledge, assignment or other disposition of, the Shares to 
any person other than Omni or Omni's designee, (ii) enter into any voting 
arrangement, whether by proxy, voting agreement, voting trust, 
power-of-attorney or otherwise, with respect to the Shares or (iii) take any 
other action that would in any way restrict, limit or interfere with the 
performance of its obligations hereunder or the transactions contemplated 
hereby.

     2.   Grant of Irrevocable Proxy Coupled with an Interest; Appointment of 
Proxy.

     (a)  The Shareholder hereby irrevocably grants to and appoints any 
individual who shall hereafter be designated by Omni, and each of them, such 
Shareholder's proxy and attorney-in-fact (with full power of substitution), 
for and in the name, place and stead of such Shareholder, to vote such 
Shareholder's Shares, or grant a consent or approval in respect of such 
Shares, at any meeting of shareholders of the Company or at any adjournment 
thereof or in any other circumstances upon which their vote, consent or other 
approval is sought, (i) in favor of the Merger, the adoption by the Company 
of the Merger Agreement and the approval of the other transactions 
contemplated by the Merger Agreement and (ii) against any Alternative 
Transaction or Frustrating Transaction.

     (b)  The Shareholder represents that any proxies heretofore given in 
respect of such Shareholder's Shares are not irrevocable, and that any such 
proxies are hereby revoked.

     (c)  THE SHAREHOLDER HEREBY AFFIRMS THAT THE PROXY SET FORTH IN THIS 
SECTION 2 IS COUPLED WITH AN INTEREST AND IS IRREVOCABLE UNTIL SUCH TIME AS 
THIS AGREEMENT TERMINATES IN ACCORDANCE WITH ITS TERMS. The Shareholder 
hereby further affirms that the irrevocable proxy is given in connection with 
the execution of the Merger Agreement, and that such irrevocable proxy is 
given to secure the performance of the duties of such Shareholder under this 
Agreement. Such Shareholder hereby ratifies and confirms all that such 
irrevocable proxy may lawfully do or cause to be done by virtue hereof.  Such 
irrevocable proxy is executed and intended to be irrevocable in accordance 
with the provisions of Section 607.0722 of the FBCA.

     3.   Representations and Warranties of the Shareholder.  The Shareholder 
hereby represents and warrants to Omni as follows:

     (a)  Authorization.  The Shareholder has the legal capacity to execute, 
deliver and perform this Agreement.  This Agreement constitutes a valid and 
binding obligation of the Shareholder enforceable against him in accordance 
with its terms.  If the Shareholder is married and the Shares constitute 
community property under applicable law, this Agreement has been duly 
authorized, executed and delivered by, and constitutes the valid and binding 
agreement of, the Shareholder's spouse enforceable against such spouse in 
accordance with its terms.


                                     2

<PAGE>

     (b)  No Conflict.  The execution, delivery and performance by the 
Shareholder of this Agreement and the consummation of the transactions 
contemplated hereby do not and will not (i) result in any breach or violation 
of or be in conflict with or constitute a default under term of any law or 
agreement or arrangement to which the Shareholder is a party or by which the 
Shareholder is bound, (ii) require any filing with or authorization by any 
governmental entity or (iii) require any consent or other action by any 
person under, constitute a default under, or give rise to any right of 
termination, cancellation or acceleration or to a loss of any benefit to 
which the Shareholder is entitled under any provision of any agreement or 
other instrument binding on the Shareholder.

     (c)  Ownership of Shares.  The Shareholder is the record and beneficial 
owner of the Shares free and clear of any and all liens, pledges, 
restrictions, charges or other adverse claims of any kind or nature.  The 
Shareholder has the sole voting power, sole power of disposition, sole power 
of conversion, sole power to demand appraisal rights and sole power to agree 
to all the matters set forth in this Agreement, in each case with respect to 
all of the Shares with no limitations, qualifications or restrictions on such 
rights, subject to applicable securities laws and the terms of this 
Agreement.  None of the Shares are subject to any voting trust or other 
agreement or arrangement with respect to the voting of such Shares. The 
Shareholder's Shares and the certificates representing such Shares are now, 
and at all times during the term hereof will be, held by the Shareholder, or 
by a nominee or custodian for the benefit of the Shareholder. The Shareholder 
owns of record or beneficially no shares of CSI Common Stock other than such 
Shareholder's Shares.

     (d)  Merger Agreement.  The Shareholder understands and acknowledges 
that Omni is entering into the Merger Agreement in reliance upon the 
Shareholder's execution and delivery of this Agreement.

     4.   Board Approval.  The Board of Directors of the Company has, to the 
extent required by applicable law, duly and validly authorized and approved 
by all necessary corporate action, this Agreement, the Merger Agreement and 
the transactions contemplated hereby and thereby, so that by the execution 
and delivery hereof no restrictive provision of any "fair price," 
"moratorium," "control-share acquisition," "interested shareholders" or other 
similar anti-takeover statute or regulation (including, without limitation, 
Sections 607.0901 and 607.0902 of the FBCA) or restrictive provision of any 
applicable anti-takeover provision in the Articles of Incorporation or 
by-laws of the Company is, or will be, applicable to the Company, Omni, the 
Shares, the Merger or any other transaction contemplated by this Agreement.

     5.   Miscellaneous.

     (a)  Notices.  All notices shall be in writing and shall be given as 
follows:

          if to the Shareholder to:

          Brian A. Kahan
          CompScript, Inc.

                                    3

<PAGE>


          1225 Broken Sound Parkway, N.W.
          Boca Raton, Florida 33487
          Telecopy: 561-994-6104

          with a copy to:

          Atlas, Pearlman, Trop & Borkson, P.A.
          200 East Las Olas Boulevard, Suite 1900
          Fort Lauderdale, Florida  33301
          Telecopy: 954-766-7800
          Attention: Joel D. Mayersohn, Esq.

          if to Omni to:

          Omnicare, Inc.
          2800 Chemed Center
          255 East Fifth Street
          Cincinnati, Ohio   45203
          Attention: Cheryl D. Hodges
          Telecopy: 513-762-6678

          with a copy to:

          Dewey Ballantine LLP
          1301 Avenue of the Americas
          New York, New York 10019
          Telecopy: 212-259-6333
          Attention: Morton A. Pierce, Esq.
          Richard D. Pritz, Esq.

     or to such other address as may have been designated in a prior notice 
     pursuant to this Section.  Notices shall be deemed effectively served 
     and delivered upon receipt.

     (b)  Binding Effect.  This Agreement will be binding upon and inure to 
the benefit of the parties hereto and their respective successors and 
permitted assigns, but neither this Agreement nor any of the rights or 
obligations hereunder shall be assigned by the Shareholder without the prior 
written consent of Omni.  Except as otherwise specifically provided in this 
Agreement, nothing in this Agreement is intended or will be construed to 
confer on any person other than the parties hereto any rights or benefits 
hereunder.

     (c)  Governing Law.  This Agreement will be governed by and construed 
under Florida law, without regard to conflict of laws principles thereof.

     (d)  Waivers.  Compliance with the provisions of this Agreement may be 
waived only by a written instrument specifically referring to this Agreement 
and signed by the party waiving compliance.  No course of dealing, nor any 
failure or delay in exercising

                                    4

<PAGE>

any right, will be construed as a waiver, and no single or partial exercise 
of a right will preclude any other or further exercise of that or any other 
right.

     (e)  Modification.  No supplement, modification or amendment of this 
Agreement will be binding unless made in a written instrument that is signed 
by all the parties hereto and that specifically refers to this Agreement.

     (f)  Entire Agreement.  This Agreement and the Merger Agreement are the 
exclusive statement of the agreement among the parties hereto concerning the 
subject matter hereof.

     (g)  Severability.  If any one or more of the provisions of this 
Agreement shall be held to be invalid, illegal or unenforceable, the 
validity, legality or enforceability of the remaining provisions of this 
Agreement shall not be affected thereby.  To the extent permitted by 
applicable law, each party waives any provision of law which renders any 
provision of this Agreement invalid, illegal or unenforceable in any respect.

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

     (i)  Enforcement.  The parties agree that irreparable damage would occur 
in the event that any of the provisions of this Agreement were not performed 
in accordance with their specific terms or were otherwise breached.  It is 
accordingly agreed that the parties shall be entitled to an injunction or 
injunctions to prevent breaches of this Agreement and to enforce specifically 
the terms and provisions of this Agreement in a court of the United States. 
This being in addition to any other remedy to which they are entitled at law 
or in equity.  In addition, each of the parties hereto waives any right to 
trial by jury with respect to any claim or proceeding related to or arising 
out of this Agreement or any of the transactions contemplated hereby.

     (j)  Further Assurances.  Omni and the Shareholder will execute and 
deliver, or cause to be executed and delivered, all further documents and 
instruments and use their reasonable best efforts to take, or cause to be 
taken, all actions necessary, proper or advisable under applicable Law to 
consummate and make effective the transactions contemplated by this Agreement 
and to vest the power to vote the Shareholder's Shares as contemplated by 
Sections 1 and 2 .

     (k)  Termination.  This Agreement, and all rights and obligations of the 
parties hereunder, shall terminate upon the earliest to occur of (i) 
consummation of the Merger, (ii) the termination of the Merger Agreement in 
accordance with its terms, unless prior to such termination a person or 
entity shall have made a Transaction Proposal and (iii) one year from the 
date hereof. Sections 1(b) and 2(a)(ii) shall terminate on the earlier of (x) 
the date computed in accordance with the preceding sentence and (y) six 
months after the termination of the Merger Agreement in accordance with its 
terms.  Nothing in this Section 5(k) shall relieve the Shareholder from 
liability for breach of this Agreement. 

                                    5

<PAGE>

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

                              OMNICARE, INC.


                              -----------------------------------
                              By:  /s/ Joel F. Gemunder
                                   Name: Joel F. Gemunder
                                   Title:  President

                                   /s/ Brian A. Kahan
                              -----------------------------------
                                   Brian A. Kahan, the Shareholder







                                    6





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