AMENDMENT NO. 3
                                       TO
                     DRUG BENEFIT PROGRAM SERVICES AGREEMENT



     In consideration of the mutual promises contained herein and other good and
valuable  consideration,   the  receipt  and  sufficiency  of  which  is  hereby
     acknowledged,  the  undersigned,  being the  parties to that  certain  Drug
Benefit
Program  Services  Agreement dated as of March 1, 1994, as amended (the "Service
Agreement"),  hereby amend the Service  Agreement  effective  October 1, 1998 as
follows:

     1.  Sections  2.1(a),  2.1(b),  2.1(c),  3.1(a),  3.1(b)  and 3.1(c) of the
Service  Agreement  are  deleted.  Furthermore,  the phrase  "including  but not
limited to the following:" is deleted from Section 3.1 of the Service  Agreement
and substituted therefor shall be ".".

     2.  RxCare  and  Pro-Mark  expressly  agree  that  each  of them is free to
solicit,  negotiate,  market, communicate and enter into contracts with any Drug
Benefit  Program or other  person,  entity or individual  (whether  Managed Care
Organizations or Behavioral  Health  Organizations or the State of Tennessee) to
provide pharmaceutical benefit management services on its own behalf and for its
own benefit  regardless of whether RxCare  currently has a contract in force and
effect with any such Drug  Benefit  Program and so long as any such new contract
is not effective  until the later of the  following:  (a) January 1, 1999 or (b)
the day following the termination  date of the existing  contract between RxCare
and such applicable Drug Benefit Program. Furthermore, RxCare and Pro-Mark shall
notify  each  other  within  24  hours of the  receipt  of any  written  or oral
notification (whether or not such notification is in proper form under the terms
of the applicable  agreement)  from an applicable Drug Benefit Program as to the
termination date of each existing contract or Drug Benefit

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Program  covered  under an  existing  contract  which in any case has been or is
currently being serviced by Pro-Mark under the Service Agreement.

     3. As part of the consideration for this Amendment,  Pro-Mark agrees to pay
RxCare the sum of  $1,500,000.00.  This payment shall be made at the time of the
execution  of this  Amendment,  and such  payment  shall  not be  considered  in
calculating the existence of cumulative  losses or cumulative  profits under the
Service Agreement. As additional consideration for the execution and delivery of
this Amendment by RxCare, Pro-Mark shall waive RxCare's obligations with respect
to all  cumulative  losses  under the  Service  Agreement  (if any)  existing on
December 31, 1998 and RxCare  shall have no further  financial  obligation  with
respect to such  cumulative  losses  after  December  31, 1998 under the Service
Agreement,  including  any  obligation  under  Amendment  No.  2 to the  Service
Agreement,  as further evidenced by a correspondence  dated March 28, 1996, from
Kathie Garrity of Pro-Mark to Gary Cripps.  The parties  acknowledge that a bona
fide dispute exists with respect to RxCare's obligations (which it denies) under
the  instrument  entitled  "Amendment  No.  2  to  the  Service  Agreement."  If
cumulative profits exist under the Service Agreement on December 31, 1998 (prior
to  final  adjustment  to zero  balance  but  excluding  therefrom  the  amounts
contemplated by Para. 4, Para. 5 and Para. 6 of this Amendment) one-half of such
cumulative  profits shall be paid by Pro-Mark to RxCare in  accordance  with the
Service Agreement.

     4. Pro-Mark will furnish  RxCare with  administrative  expense  payments of
$20,000.00  per month for the months of October,  November  and  December  1998.
These payments shall be delivered via an aggregate  payment of $60,000.00 at the
time of the execution of this Amendment.

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     5. Pro-Mark and RxCare shall use  reasonable  efforts to collect any monies
owed to Pro-Mark and RxCare from Integrated  Pharmaceutical  Services,  Inc. and
Foundation  Health Care,  Inc.  (collectively  "Foundation/IPS")  resulting from
alleged  underpayments  by  Foundation/IPS  with  respect  to the  provision  of
Pro-Mark Services (the  "Foundation/IPS  Claim").  In the event that the parties
receive a settlement  offer from  Foundation/IPS  (or any successor in interest)
and only one of the parties desires to accept such offer,  such party shall give
written  notice  ("Notice")  to the other party (by orally  confirmed  facsimile
transmission)  at the address set forth below the  signature  contained  on this
Amendment. The Notice shall include the offer received from Foundation/IPS and a
statement setting forth all expenses incurred by such notifying party. The other
party  shall  have five (5) days from the date of the  receipt  of the Notice to
accept  the  settlement  offer on the terms set forth in the Notice or to pay to
the  accepting  party an amount equal to one-half of the  settlement  offer less
one-half of the  aggregate  legal fees and  expenses  incurred by both  parties.
RxCare  and  Pro-Mark  shall  cooperate  with each  other  with  respect  to the
collection  of the  Foundation/IPS  Claim and each  party  will be  entitled  to
receive one-half of any amounts  collected,  whether by judgment,  settlement or
otherwise,  less one-half of aggregate  legal fees and expenses  incurred by the
parties in pursuing the claim.

     6.  Within ten (10) days after  receipt  from each  manufacturer  of rebate
payments  delivered  on  account of the  contracts  with the  Behavioral  Health
Organizations  operating under the TennCare Partners Program for the period July
1, 1998,  through  December 31, 1998 (the "BHO  rebates")  Pro-Mark shall pay to
RxCare one-half thereof. Should it later be determined by virtue of a settlement
or  proceeding  to which  RxCare and  Pro-Mark are parties that such BHO rebates
must be paid over (whether in whole or in part) to

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a third party,  (i) RxCare shall surrender to Pro-Mark or such  third-party,  as
the case may be, one-half of the required repayment amount, subject to a maximum
liability  equalling  the  payments  actually  received  by it from  Pro-Mark on
account of its share of BHO rebates, and (ii) Pro-Mark shall surrender to RxCare
or such  third-party,  as the case may be,  one-half of the  required  repayment
amount.  With the exception of the foregoing,  Pro-Mark  agrees to indemnify and
hold RxCare  harmless with respect to the claims of any third party unrelated to
RxCare relating to the BHO rebate payments in excess of the actual amount of BHO
rebates  received by RxCare.  Examples (for  illustration but not limitation) of
the parties' agreement hereunder are as follows:

     EXAMPLE I

     BHO  rebate  payments  received  total  $2,000,000.00.  Total  payments  by
     Pro-Mark  to RxCare  shall equal  $1,000,000.00.  Third party makes a claim
     with respect to the BHO rebates in the total amount of  $3,000,000.00.  The
     third party prevails and recovers a $3,000,000.00  judgment in a proceeding
     to which each of Pro-Mark and RxCare is a party.  RxCare is responsible for
     $1,000,000.00  (its  maximum  liability)  of such  obligation.  Pro-Mark is
     responsible for remaining obligation of $2,000,000.00.


     EXAMPLE II

     BHO  rebate  payments  received  total  $2,000,000.00.  Total  payments  by
     Pro-Mark to RxCare shall equal  $1,000,000.00.  A third party makes a claim
     with respect to BHO rebates in the total amount of $1,000,000.00. The third
     party  prevails and recovers a  $1,000,000.00  judgment in a proceeding  to
     which each of Pro-Mark  and RxCare is a party.  RxCare is  responsible  for
     $500,000.00 of such  obligation.  Pro-Mark is responsible for the remaining
     obligation of $500,000.00.


     EXAMPLE III.

     BHO  rebate  payments  received  total  $2,000,000.00.  Total  payments  by
     Pro-Mark to RxCare shall equal  $1,000,000.00.  A third party makes a claim
     with  respect to the BHO rebates in the total  amount of  $500,000.00.  The
     third party

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     prevails and recovers a $500,000.00  judgment in a proceeding to which each
     of Pro-Mark and RxCare is a party. RxCare is responsible for $250,000.00 of
     such  obligation.  Pro-Mark is responsible for the remaining  obligation of
     $250,000.00.


     7. In order to avoid  controversies and disputes,  RxCare and Pro-Mark each
agrees  that it, and its  officers,  directors,  employees  and agents and their
respective parent  companies,  their officers,  directors,  employees and agents
shall  limit  comments   about  the  other,   about  their  current  and  former
relationship  and about the  termination of that  relationship  to the following
statement  and will  decline  to make  further  comments  or  respond to further
questions citing this agreement:

     RxCare and Pro-Mark  consider each other to be  professional  organizations
     able to provide  competent  services to their  customers.  They ended their
     contractual  relationship to pursue their own business goals separately and
     they each wish the other  success.  The parties  have agreed to limit their
     comments  about the other to the  foregoing  statement  and to not  comment
     further on the other, their relationship or its termination.


     8. Each of  Pro-Mark  and  RxCare  shall  have a  perpetual,  non-exclusive
royalty  free  right  to the  ownership,  possession  and use,  for any  purpose
whatsoever,   of  the   software   and  data   constituting   the   "pharmacists
credentialling  system"  utilized  by the parties  under the Service  Agreement,
including the paper copies of all completed pharmacy questionnaires,  supporting
documentation and the verification process associated  therewith  (collectively,
the "Credentialling  System").  The parties agree to execute and deliver any and
all agreements, instruments and documents and take any and all action reasonably
requested by the other to evidence each party's  respective rights in and to the
joint  ownership,  use and right to  possession  of the  Credentialling  System.
Promptly, but in any event within seven (7) days

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of the execution and delivery of this  Amendment,  Pro-Mark will deliver legible
copies,  to the extent in existence,  of the completed  pharmacy  questionnaires
(with   supporting   documentation)   as  well  as  all  data  relating  to  the
Credentialling  System  together  with a  usable  version  of the  software  and
electronically  stored  data.  Pro-Mark  further  agrees to store  all  original
Credentialling System questionnaires, together with supporting documentation, at
its  Nashville,  Tennessee  offices  and  shall  provide  RxCare  access to such
original  documents  during  regular  business  hours  upon three (3) days prior
notice (oral or written).

     9.  Each of  Pro-Mark  and  RxCare  agrees to  continue  to  perform  their
respective  obligations  under the Service  Agreement in good faith  through the
termination  date,  except as such obligations are modified hereby.  Each of the
parties  further agrees to cooperate and provide  reasonable  assistance in good
faith with respect to the conversion or transition of any Drug Benefit  Programs
to a new claims' processor, pharmacy benefit management company or other service
provider. The parties acknowledge and agree that Pro-Mark shall require at least
14 days prior  written  notice of a transition or conversion of any Drug Benefit
Program.

     10. Any term defined in the Service  Agreement  shall have the same meaning
and effect when used in this Amendment.

     11.  Except  as  modified  hereby,  all  other  provisions  of the  Service
Agreement,  including  Amendment  No. 1, shall  remain in full force and effect;
provided,  however,  that nothing herein shall affect the  effectiveness  of the
notices of non-renewal given by each of the parties to the other.

     12. In further  consideration  of their  undertaking,  the parties agree as
follows:

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          (A) The  parties  release  and  discharge  any claims  which they have
     raised or could have  raised  against  the other with  respect to  internal
     financial accounting under the Service Agreement;

          (B) The parties each release and  discharge any claims which they have
     raised or could have raised  against  the other with  respect to prior acts
     relating  to efforts  to  solicit,  negotiate  or market in order to secure
     contracts  with any Drug  Benefit  Program or any other  person,  entity or
     individual;

          (C) The parties  release and  discharge  any claims  (except for Third
     Party Claims  described  below) which they have raised or could have raised
     against the other for operational  matters including all matters within the
     ambit of the governmental investigations into the TennCare programs;

          (D) Unless RxCare has actual knowledge of the claim at the time of the
     execution of this Amendment,  Pro-Mark agrees to assume full responsibility
     for the claims of third parties  unrelated to RxCare ("Third Party Claims")
     to the extent  that any such  claim(s)  is for  Pro-Mark's  performance  or
     failure to perform its obligations under the Service  Agreement;  provided,
     however,   that  Pro-Mark's  obligation  is  conditioned  upon  (1)  RxCare
     immediately  notifying  Pro-Mark in writing of any such Third Party Claims;
     and (2) RxCare  taking any action or not taking any action  which  Pro-Mark
     reasonably  requests  for the purpose of  protecting  Pro-Mark's  rights or
     defending or mitigating  Pro-Mark's  obligations with respect to such Third
     Party  Claim(s),  and (3) Pro-Mark  having the right to control any and all
     aspects  of the  defense  and  settlement  of such  Third  Party  Claim(s),
     including,  if it  exercises  such right,  the  selection  of counsel,  the
     determination  of all  matters of tactics  and  strategy,  and the  amount,
     nature and timing of any negotiated resolution;

          (E) For purposes of the releases and  discharges  provided for in this
     Paragraph 12, the parties  intend each release and discharge to include the
     claims of and the claims against the parties and their  respective  current
     and former (i) officers, directors, employees and agents, and (ii) parents,
     subsidiaries,

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     affiliates, successors, and assigns (and each of their respective officers,
     directors, employees, and agents) acting in their capacities as such.


     IN WITNESS WHEREOF,  the parties have caused this instrument to be executed
by the duly  authorized  representative  effective as of the date first  written
above.

PRO-MARK  HOLDINGS,  INC.                         RXCARE OF TENNESSEE, INC.

By: /s/BARRY A. POSNER                            By: /s/MICHAEL SWAIN
    ------------------                                ------------------
Date: 11/24/98                                    Date: 11/24/98

ADDRESS:                                          ADDRESS:

c/o MIM CORPORATION                               RXCARE OF TENNESSEE, INC.
100 Clearbrook Road                               226 Capital Blvd Suite 510
Elmsford, NY 10523                                Nashville, TN 37219
Attn: General Counsel

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