
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934

                             ALLEGIANCE CORPORATION
                  ---------------------------------------------
                                (Name of Issuer)

                     Common Stock, $1.00 par value per share
                  ---------------------------------------------
                         (Title of Class of Securities)

                                    017475104
                  ---------------------------------------------
                                 (CUSIP Number)

                                Robert D. Walter
                              Cardinal Health, Inc.
                               5555 Glendon Court
                               Dublin, Ohio 43016
                                 (614) 717-5000

                                 With a copy to:

                               David A. Katz, Esq.
                         Wachtell, Lipton, Rosen & Katz
                               51 West 52nd Street
                              New York, N.Y. 10019
                                 (212) 403-1000
                  ---------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 October 8, 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 Rule13d-1(b)(3) or (4), check the following box:
/ /



                               Page 1 of 11 Pages
<PAGE>

-----------------                                     --------------------------
CUSIP No.
017475104                              13D               Page 2 of 11 Pages
-----------------                                     --------------------------

------- ------------------------------------------------------------------------
  1     Name of Reporting Person
        S.S. or I.R.S. Identification No. of Above Person
        Cardinal Health, Inc.
        31-0958666
------- ------------------------------------------------------------------------
        Check the Appropriate Box if a Member of a Group (See Instructions)    
  2                                                        (a)  /  /           
                                                           (b)  /  /
------- ------------------------------------------------------------------------
  3     SEC Use Only
------- ------------------------------------------------------------------------
  4     Sources of Funds (See Instructions)
        WC
------- ------------------------------------------------------------------------
        Check Box if Disclosure of Legal Proceedings is Required Pursuant
  5     to Item 2(d) or 2(e)                                    /  /
------- ------------------------------------------------------------------------
  6     Citizenship or Place of Organization
        Ohio
------- ------------------------------------------------------------------------
                 7     Sole Voting Power
  Number of            0
               ------- ---------------------------------------------------------
   Shares        8     Shared Voting Power
Beneficially           0
               ------- ---------------------------------------------------------
  Owned By       9     Sole Dispositive Power
    Each               0
               ------- ---------------------------------------------------------
  Reporting      10    Shared Dispositive Power
 Person With           0
-------------- ------- ---------------------------------------------------------
     11        Aggregate Amount Beneficially Owned by Each Reporting Person
               22,284,538 of Common Stock
-------------- -----------------------------------------------------------------
               Check Box if the Aggregate Amount in Row (11) Excludes Certain 
     12        Shares (See Instructions)                        /  /
-------------- -----------------------------------------------------------------
     13        Percent of Class Represented by Amount in Row (11)

               16.6%.  Based upon 111,982,604 shares of Common Stock outstanding
               as of September 30, 1998, as  represented  by Issuer,  calculated
               pursuant to Rule 13d-3(d)(1) and assuming, solely for purposes of
               such  calculation,  that the option to  purchase  such shares has
               been exercised.

-------------- -----------------------------------------------------------------
     14        Type of Reporting Person (See Instructions)
               HC, CO
-------------- -----------------------------------------------------------------

<PAGE>

ITEM 1. SECURITY AND ISSUER.

                  This Schedule 13D relates to the common stock, par value $1.00
per share ("Allegiance  Common Stock"),  of Allegiance  Corporation,  a Delaware
corporation  ("Allegiance").  The principal  executive offices of Allegiance are
located at 1430 Waukegan Road, McGaw Park, Illinois 60085.

ITEM 2. IDENTITY AND BACKGROUND.

                  This Schedule 13D is filed by Cardinal  Health,  Inc., an Ohio
corporation  ("Cardinal").  Cardinal is a national health care service provider,
providing  an array of  value-added  pharmaceutical  distribution  services to a
broad  base  of  customers   nationwide.   Through  a  number  of  wholly  owned
subsidiaries,   Cardinal  also  provides  a  variety  of  pharmaceutical-related
products and services.  Cardinal's  principal  executive  offices are located at
5555 Glendon Court, Dublin, Ohio 43016.

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

                  During  the  last  five  years,  to  the  best  of  Cardinal's
knowledge,  neither Cardinal nor any of its executive  officers or directors has
been convicted in a 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 Cardinal or
such  person was or is subject to a 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  more  fully  set  forth   below  in  Item  4  "Purpose  of
Transaction,"  pursuant to an Agreement and Plan of Merger,  dated as of October
8, 1998 (the "Merger Agreement"),  by and among Cardinal,  Boxes Merger Corp., a
Delaware corporation and a wholly-owned subsidiary of Cardinal ("Merger Corp."),
and  Allegiance,  subject to the terms and  conditions of the Merger  Agreement,
Merger Corp.  will merge (the "Merger") with and into Allegiance with Allegiance
as the surviving  corporation  (the  "Surviving  Corporation").  Allegiance will
become a  wholly-owned  subsidiary  of  Cardinal,  and each share of  Allegiance
Common Stock shall be converted  into and represent a number of Cardinal  common
shares,  without  par value  ("Cardinal  Common  Shares")  equal to 0.4150  (the
"Exchange  Ratio").  Upon the  completion  of  Cardinal's  previously  announced
3-for-2  stock split (the  record  date for which was  October 9, 1998,  and the
payment date for which is October 30, 1998), the Exchange Ratio will be adjusted
so that each  share of  Allegiance  Common  Stock  shall be  converted  into and
represent a number of Cardinal Common Shares equal to 0.6225 (the Exchange Ratio
may also be adjusted to take into account future  changes in the  capitalization
of the Cardinal Common Shares, as specified in the Merger Agreement).  A copy of
the  Merger  Agreement  is  filed as  Exhibit  2.1 to this  Schedule  13D and is
incorporated herein by this reference.  The foregoing  description of the Merger
Agreement is qualified in its entirety by reference to such exhibit. See Item 4.

                  In  connection  with  the  Merger   Agreement,   Cardinal  and
Allegiance  have entered into a Stock Option  Agreement,  dated as of October 8,
1998 (the "Stock Option Agreement"), 

                                  Page 3 of 11
<PAGE>

pursuant to which Allegiance has granted to Cardinal an option (the "Option") to
purchase  from  Allegiance,  under  certain  circumstances,   up  to  22,284,538
authorized and unissued  shares of Allegiance  Common Stock.  The exercise price
per share  under the Option is the lower of (a)  $38.46,  and (b) the product of
the  Exchange  Ratio  times the  average  of the  closing  prices  (or,  if such
securities  should  not trade on a given  day,  the  average  of the bid and ask
prices  therefor on such day) of the Cardinal  Common  Shares as reported on the
NYSE  Composite  Tape during the five  consecutive  trading  days ending on (and
including) the trading day immediately  prior to the day the option is exercised
(such  average  being the  "Cardinal  Closing  Price").  In the  event  that any
additional  shares of  Allegiance  Common Stock are issued after the date of the
Stock Option Agreement (other than under certain  circumstances set forth in the
Stock Option  Agreement),  the number of shares of Allegiance  Common Stock that
may be purchased under the Option will be adjusted so that, after such issuance,
it equals at least 19.9% of the number of shares of Allegiance Common Stock then
issued and  outstanding  (without  considering  any shares  subject to or issued
pursuant to the Option).

                  As of the date  hereof,  the  Option is not  exercisable.  The
shares  of   Allegiance   Common  Stock   subject  to  the  Option  would  equal
approximately  19.9% of the  outstanding  Allegiance  Common Stock before giving
effect to the exercise of the Option and approximately  16.6% of the outstanding
Allegiance Common Stock after giving effect to the exercise of the Option. Under
certain circumstances,  Cardinal may require Allegiance to, or Allegiance may be
permitted to, repurchase for cash the Option and any shares of Allegiance Common
Stock acquired pursuant to the exercise of the Option.

                  The  exercise  of the  Option  for the full  number  of shares
currently  covered  thereby would require  aggregate  funds of  $857,063,331.50,
based on an exercise  price of $38.46 per share.  Since the  exercise  price per
share of the  Option  is equal to the  lower of $38.46  and the  product  of the
Exchange Ratio and the Cardinal  Closing Price,  the aggregate funds required to
exercise the Option in full may be lower (but not higher)  than  $857,063,331.50
depending on the Cardinal  Closing  Price.  It is anticipated  that,  should the
Option become  exercisable and should Cardinal determine to exercise the Option,
Cardinal would obtain the funds for the purchase from working  capital and/or by
borrowing from parties whose identity is not yet known.

                  A copy of the Stock  Option  Agreement is filed as Exhibit 2.2
to this Schedule 13D and is incorporated herein by this reference. The foregoing
description  of the Stock  Option  Agreement  is  qualified  in its  entirety by
reference to such exhibit.

ITEM 4. PURPOSE OF TRANSACTION.

                  In   connection   with  the  execution  of  the  Stock  Option
Agreement,  Cardinal,  Merger  Corp.  and  Allegiance  entered  into the  Merger
Agreement,  pursuant to which,  among other matters and subject to the terms and
conditions set forth therein,  Merger Corp. will merge with and into Allegiance,
with  Allegiance as the Surviving  Corporation  of the Merger and a wholly-owned
subsidiary  of Cardinal.  The Option was granted by Allegiance as a condition of
and  in  consideration   for  Cardinal   entering  into  the  Merger  Agreement.
Consummation of the Merger is subject to certain  conditions,  including,  among
others, (i) the approval of the Merger Agreement by the holders of a majority of
the  outstanding  shares of  Allegiance  Common Stock in the manner  required by
applicable  law;  (ii)  the  approval  by the  holders  of the  majority  of the
outstanding Cardinal Common Shares of the issuance of the Cardinal Common Shares
issuable in the Merger and the transactions contemplated by the Merger Agreement
in the manner  required by applicable  law and the  applicable  rules of the New
York Stock  Exchange (the "NYSE");  (iii) the  expiration or  termination of all
waiting  periods  applicable  to  the  consummation  of  the  Merger  under  the
Hart-Scott-Rodino  Antitrust  Improvements  Act of  1976,

                                  Page 4 of 11
<PAGE>

as  amended,   and  the  obtaining  of  any  other   approvals  of  governmental
authorities;  (iv) the  absence of any  applicable  law,  regulation,  judgment,
injunction  order or decree  prohibiting  or enjoining the  consummation  of the
Merger or the transactions  contemplated by the Merger Agreement or limiting the
ownership  or  operation  by  Cardinal,  Allegiance  or any of their  respective
subsidiaries  of any material  portion of their  businesses  or assets;  (v) the
absence of any pending action instituted by a governmental authority challenging
or seeking to restrain or prohibit the  consummation of the Merger or any of the
other  transactions  contemplated  by the Merger  Agreement;  (vi) the effective
registration  of the Cardinal  Common Shares to be issued in connection with the
Merger  under the  Securities  Act of 1933,  as  amended  (and no stop  order or
similar  registration  order  suspending the  effectiveness  of the registration
statement  shall be in  effect  and no  proceedings  for such  purpose  shall be
pending  or  threatened);  (vii) the  approval  for  listing  by the NYSE of the
Cardinal  Common Shares to be issued in connection  with the Merger,  subject to
official  notice of  issuance;  (viii)  receipt by Cardinal  of an  accountant's
letter  confirming  that the  Merger  will  qualify  as a pooling  of  interests
transaction for financial reporting  purposes;  (ix) receipt by Allegiance of an
opinion of counsel  that,  among  other  things,  the Merger will  constitute  a
reorganization  under  Section  368(a) of the Internal  Revenue Code of 1986, as
amended;  (x) Cardinal's being satisfied,  in its sole discretion,  that certain
limitations  contained  in an  Allegiance  contract  referenced  in  the  Merger
Agreement (the "Subject Contract") shall not apply to the business or operations
of Cardinal, Cardinal's subsidiaries or the Surviving Corporation from and after
the time the Merger is consummated;  (xi) there shall have been no breach of the
Stock Option Agreement; and (xii) satisfaction of certain other conditions.

                  The  Subject  Contract  referenced  in  clause  (x) above is a
contract  between  Allegiance  and a third  party  that was  entered  into  when
Allegiance terminated the relationship with the third party and discontinued the
line of business it was in with the third party. The Subject Contract limits the
ability  of  Allegiance  and  certain   related  parties  to  compete  in  these
discontinued  businesses,  but only through a defined period ending on April 21,
1999  when the  contract  restriction  expires  in  accordance  with its  terms.
Allegiance is currently in compliance with the Subject  Contract.  The condition
to closing set forth in clause (x) above leaves it to Cardinal to determine,  in
its sole  discretion,  whether  certain  limitations  set  forth in the  Subject
Contract   apply  to  the  business  or  operations   of  Cardinal,   Cardinal's
subsidiaries or the Surviving  Corporation  from and after the effective time of
the Merger (the "Effective  Time"), and the condition may be satisfied or waived
by Cardinal at any time.

                  Pursuant to the Merger  Agreement,  upon  consummation  of the
Merger,  (a) the officers of  Allegiance  will be the officers of the  Surviving
Corporation,  (b) the  directors  of Merger Corp.  will be the  directors of the
Surviving  Corporation,  (c)  each  share of  Allegiance  Common  Stock  will be
converted  into Cardinal  Common Shares in accordance  with the Exchange  Ratio,
with cash paid in lieu of receipt of fractional  Cardinal Common Shares, and (d)
at the Effective Time of the Merger, the Certificate of Incorporation and Bylaws
of  Allegiance,  as the Surviving  Corporation,  will be amended to be identical
(save  for  the  name  of  the  corporation)  to  those  of  Merger  Corp.  Upon
consummation  of the Merger,  the Allegiance  Common Stock will be delisted from
the NYSE. In connection with the execution of the Merger  Agreement,  Allegiance
amended its Rights Agreement, dated as of September 30, 1996, between Allegiance
and First  Chicago Trust  Company of New York,  to make it  inapplicable  to the
Merger,  the Stock Option  Agreement  or the  transactions  contemplated  by the
Merger Agreement or the Stock Option Agreement.

                  The  Merger  Agreement  further  provides  that  the  Board of
Directors of Cardinal will take all action necessary  immediately  following the
Effective Time to elect Mr. Lester B. Knight,  the Chairman and Chief  Executive
Officer of Allegiance,  and two other individuals who were independent directors
of  Allegiance  at the date of the  Merger  Agreement  (such  individuals  to be
selected by the chairman of Cardinal  from among three  proposed by the Board of
Directors of Allegiance) as directors of Cardinal.

                                  Page 5 of 11
<PAGE>

                  The  Merger   Agreement  may  be   terminated   under  certain
circumstances described in Article VII of the Merger Agreement, including if the
Merger is not completed  prior to May 15, 1999 (provided that the party desiring
to terminate the Merger Agreement is not at fault for the Merger failing to have
occurred on or before such date).

                  A copy of the Merger Agreement is filed as Exhibit 2.1 to this
Schedule  13D and is  incorporated  herein  by  this  reference.  The  foregoing
description of the Merger Agreement is qualified in its entirety by reference to
such exhibit.

                  Except as set forth herein, Cardinal does not have any current
plans or proposals that relate to or would result in (i) the  acquisition by any
person of additional  shares of Allegiance  Common Stock or the  disposition  of
shares of Allegiance Common Stock; (ii) an extraordinary  corporate transaction,
such as a merger, reorganization or liquidation,  involving Allegiance or any of
its  subsidiaries;  (iii) a sale or transfer of any material amount of assets of
Allegiance or any of its  subsidiaries;  (iv) any change in the present board of
directors  or  management  of  Allegiance,  including  any plans or proposals to
change the number or term of  directors  or to fill any  vacancies on the board;
(v) any  material  change in the present  capitalization  or dividend  policy of
Allegiance; (vi) any other material change in Allegiance's business or corporate
structure;  (vii) any change in  Allegiance's  Certificate of  Incorporation  or
Bylaws, or instruments  corresponding  thereto, or other actions that may impede
the  acquisition of control of Allegiance by any person;  (viii) causing a class
of securities of Allegiance to be delisted from a national  securities  exchange
or to cease to be authorized to be quoted in an inter-dealer quotation system of
a registered national securities association;  (ix) a class of equity securities
of Allegiance  becoming  eligible for  termination of  registration  pursuant to
Section 12(g)(4) of the Securities  Exchange Act of 1934, as amended; or (x) any
action similar to any of those enumerated above.

ITEM 5. INTEREST IN SECURITIES OF ISSUER.

                  Although  the Option does not allow  Cardinal to purchase  any
shares  of  Allegiance  Common  Stock  pursuant  thereto  unless  and  until the
conditions to exercise the Option specified in the Stock Option Agreement occur,
assuming  for purposes of this Item 5 that such  conditions  are  satisfied  and
Cardinal is entitled to purchase  shares of Allegiance  Common Stock pursuant to
the Option,  Cardinal would currently be entitled to purchase  22,284,538 shares
of Allegiance Common Stock, or approximately 19.9% of the currently  outstanding
Allegiance  Common Stock before  giving effect to the exercise of the Option and
16.6% of the currently  outstanding  Allegiance Common Stock after giving effect
to the  exercise of the Option  (based  upon  111,982,604  shares of  Allegiance
Common Stock  outstanding as of September 30, 1998, as represented by Allegiance
in the Merger Agreement).

                  Cardinal  does not have the  right to  acquire  any  shares of
Allegiance  Common Stock under the Option unless certain events specified in the
Stock Option Agreement occur. Accordingly, Cardinal does not have sole or shared
voting or  dispositive  power with  respect to any shares of  Allegiance  Common
Stock purchasable under the Option, and Cardinal disclaims  beneficial ownership
of  Allegiance  Common  Stock  subject to the Option  until such  events  occur.
Assuming  for  purposes of this Item 5 that events  occurred  that would  enable
Cardinal to exercise  the Option and  Cardinal  exercised  the Option,  Cardinal
would have sole  voting  power and sole  dispositive  power with  respect to the
shares of Allegiance Common Stock acquired pursuant to the Option.

                                  Page 6 of 11
<PAGE>

                  A copy of the Stock  Option  Agreement is filed as Exhibit 2.2
to this Schedule 13D and is incorporated herein by this reference. The foregoing
description  of the Stock  Option  Agreement  is  qualified  in its  entirety by
reference to such exhibit.

                  As of the date hereof,  Mr.  Robert J.  Zollars,  an executive
officer of Cardinal, beneficially owns 34,456 shares of Allegiance Common Stock,
which shares represent less than 0.1% of the outstanding Allegiance Common Stock
(based upon  111,982,604  shares of Allegiance  Common Stock  outstanding  as of
September 30, 1998, as represented by Allegiance in the Merger  Agreement).  Mr.
Zollars  has the sole power to vote and  dispose of such  shares.  Except as set
forth in this paragraph with respect to Mr.  Zollars,  to the best of Cardinal's
knowledge,  as of the date hereof,  no executive officer or director of Cardinal
beneficially  owns any shares of Allegiance  Common  Stock,  nor (except for the
issuance of the Option) have any  transactions  in Allegiance  Common Stock been
effected  during the past sixty days by Cardinal  or, to the best  knowledge  of
Cardinal,  by any  executive  officer or director of Cardinal.  In addition,  no
other  person is known by  Cardinal to have the right to receive or the power to
direct the receipt of  dividends  from,  or the  proceeds  from the sale of, the
securities covered by this Schedule 13D.

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

                  Mr. Knight and Mr.  Joseph F. Damico,  the President and Chief
Operating  Officer of  Allegiance,  have each entered into an agreement  (each a
"Voting/Support  Agreement")  with  Cardinal  pursuant  to  which,  among  other
matters,  each of them has agreed  (i) to vote all of the  shares of  Allegiance
Common  Stock  beneficially  owned by him or over which he has  voting  power or
control to approve  the  Merger and the Merger  Agreement,  and (ii) not to vote
such shares in favor of any other  recapitalization,  merger,  consolidation  or
other  business  combination  involving  Allegiance  or any  acquisition  of any
capital stock from  Allegiance  (other than upon exercise of stock options which
are outstanding as of the date of the agreement) or 30% or more of the assets of
Allegiance and its subsidiaries,  taken as a whole, in a single transaction or a
series of related transactions, or any acquisition by Allegiance of any material
assets  or  capital  stock  of  any  other  person,  or any  combination  of the
foregoing. Mr. Knight is estimated to have voting power over approximately 1.5%,
and Mr. Damico is estimated to have voting power over approximately 1.0%, of the
outstanding  shares of Allegiance Common Stock, based upon 111,982,604 shares of
Allegiance  Common Stock outstanding as of September 30, 1998, as represented by
Allegiance in the Merger Agreement.

                   Copies of the Support/Voting  Agreements,  each dated October
8, 1998,  executed  by Messrs.  Knight and  Damico,  respectively,  are filed as
Exhibits 3.1 and 3.2,  respectively,  to this Schedule 13D and are  incorporated
herein  by this  reference.  The  foregoing  description  of the  Support/Voting
Agreements is qualified in its entirety by reference to such exhibits. A copy of
the  Merger  Agreement  is  filed as  Exhibit  2.1 to this  Schedule  13D and is
incorporated  herein by this  reference.  See Item 4. A copy of the Stock Option
Agreement  is filed as  Exhibit  2.2 to this  Schedule  13D and is  incorporated
herein by this reference. See Items 3 and 5.

ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

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

Exhibit 2.1   --   Agreement and Plan of Merger, dated as of October 8, 1998, by
                   and among Cardinal Health, Inc., Boxes Merger Corp. and
                   Allegiance Corporation.

                                  Page 7 of 11
<PAGE>

Exhibit 2.2   --   Stock Option Agreement, dated as of October 8, 1998, by and 
                   between Cardinal Health, Inc. and Allegiance Corporation.

Exhibit 3.1   --   Voting/Support Agreement, dated as of October 8, 1998, by and
                   between Cardinal Health, Inc. and Lester B. Knight

Exhibit 3.2   --   Voting/Support Agreement, dated as of October 8, 1998, by and
                   between Cardinal Health, Inc. and Joseph F. Damico











                                  Page 8 of 11
<PAGE>
                                     ANNEX I

            DIRECTORS AND EXECUTIVE OFFICERS OF CARDINAL HEALTH, INC.

                  Set forth below are the name and present principal  occupation
of each director and executive  officer of Cardinal  Health,  Inc. as of October
16, 1998.  The business  address of each such director and executive  officer is
c/o Cardinal Health, Inc., 5555 Glendon Court, Dublin, Ohio 43016.

DIRECTOR                                         PRINCIPAL OCCUPATION
--------                                         --------------------

Aleksander Erdeljan             Former Chairman, R.P. Scherer Corporation,  a 
                                subsidiary  of  Cardinal  Health,  Inc.  and a
                                developer  and  manufacturer  of drug delivery
                                systems.


John F. Finn                    Chairman and Chief Executive Officer of Gardner,
                                Inc., an outdoor power equipment distributor.


Robert L. Gerbig                Chairman and Chief Executive Officer of  Gerbig,
                                Snell/Weisheimer  &  Associates,  Inc.,  an
                                advertising agency.

John F. Havens                  Retired Chairman and  Director  Emeritus of Banc
                                One Corporation, a bank holding company.

Regina E. Herzlinger            Professor,  Harvard  University  Graduate School
                                of Business Administration.


John C. Kane                    President  and  Chief  Operating   Officer  of  
                                Cardinal Health, Inc.

J. Michael Losh                 Executive  Vice  President  and  Chief Financial
                                Officer  of  General   Motors   Corporation,   a
                                manufacturer of automobiles.

George R. Manser                Chairman  of Uniglobe  Travel (Capital  Cities) 
                                Inc.  and  Director  of  Corporate   Finance  of
                                Uniglobe  Travel  (U.S.A.) LLC,  travel planning
                                services companies.

John B.  McCoy                  Chairman and Chief Executive Officer of Banc One
                                Corporation, a bank holding company.

                                  Page 9 of 11
<PAGE>

Jerry E. Robertson              Retired  Executive  Vice  President of the  Life
                                Sciences   Sector  and  Corporate   Services  of
                                Minnesota  Mining  &  Manufacturing  Company,  a
                                manufacturer of industrial,  commercial,  health
                                care and consumer products.

L. Jack Van Fossen              Retired  President  and Chief  Executive Officer
                                of Red Roof Inns, Inc., a lodging company.

Robert D. Walter                Chairman  and  Chief   Executive   Officer  of  
                                Cardinal Health, Inc.

Melburn G. Whitmire             Vice Chairman of Cardinal Health, Inc.

EXECUTIVE OFFICERS (OTHER THAN EXECUTIVE                    PRINCIPAL OCCUPATION
OFFICERS WHO ARE ALSO DIRECTORS):                           --------------------
---------------------------------

David A. Abrahamson             Executive Vice President; President - Medicine 
                                Shoppe.

George H. Bennett, Jr.          Executive Vice President, General Counsel and 
                                Secretary.

George L. Fotiades              Executive Vice President; Group President - R.P.
                                Scherer Corporation.

James F. Millar                 Executive  Vice  President;  Group  President - 
                                Cardinal Distribution.

Richard J. Miller               Vice  President,  Controller  and  Principal  
                                Accounting   Officer;   Acting  Chief  Financial
                                Officer.

Carl A. Spalding                Executive Vice  President;  Group President - 
                                Healthcare Product Services.

Robert J. Zollars               Executive  Vice  President;  Group  President - 
                                Pharmacy Automation & Management.









                                 Page 10 of 11
<PAGE>


                                   SIGNATURE


                  After  reasonable  inquiry and to the best of my knowledge and
belief,  the  undersigned  certifies  that  the  information  set  forth in this
Statement is true, complete and correct.


Dated:  October 16, 1998



                                      CARDINAL HEALTH, INC.


                                      By:   /s/ George H. Bennett, Jr.
                                         ---------------------------------------
                                            George H. Bennett, Jr.
                                            Executive Vice President, General 
                                            Counsel and Secretary











                                 Page 11 of 11
