<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CARDINAL
HEALTH INC.'S FORM 10-Q FOR THE PERIOD ENDED MARCH 31, 2000 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          JUN-30-2000
<PERIOD-START>                             JUL-01-1999
<PERIOD-END>                               MAR-31-2000
<EXCHANGE-RATE>                                      1
<CASH>                                             346
<SECURITIES>                                         0
<RECEIVABLES>                                    1,904
<ALLOWANCES>                                      (78)
<INVENTORY>                                      4,303
<CURRENT-ASSETS>                                 7,243
<PP&E>                                           2,949
<DEPRECIATION>                                 (1,338)
<TOTAL-ASSETS>                                  10,599
<CURRENT-LIABILITIES>                            4,195
<BONDS>                                          2,018
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,168
<OTHER-SE>                                       2,595
<TOTAL-LIABILITY-AND-EQUITY>                    10,599
<SALES>                                         21,656
<TOTAL-REVENUES>                                21,656
<CGS>                                           19,540
<TOTAL-COSTS>                                   19,540
<OTHER-EXPENSES>                                 1,201
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                (85)
<INCOME-PRETAX>                                    777
<INCOME-TAX>                                       292
<INCOME-CONTINUING>                                485
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       485
<EPS-BASIC>                                       1.73
<EPS-DILUTED>                                     1.70