<ARTICLE>                     5

<LEGEND>


                             Financial Data Schedule
                    Mylan Laboratories Inc. and Subsidiaries
                           Article 5 of Regulation S-X

he  schedule  contains  summary  financial   information   extracted  from  the
Consolidated  Balance Sheet at June 30, 2000, and the Consolidated  Statement of
Earnings  for the three  months  ended June 30,  2000,  and is  qualified in its
entirety by reference to such financial statements.



<CIK>                         0000069499
<NAME>                        none


                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>               MAR-31-2001

<PERIOD-END>                    JUN-30-2000

<CASH>                           181,304
<SECURITIES>                      58,472
<RECEIVABLES>                    244,378
<ALLOWANCES>                      70,992
<INVENTORY>                      208,326
<CURRENT-ASSETS>                 707,664
<PP&E>                           282,359
<DEPRECIATION>                   109,838
<TOTAL-ASSETS>                 1,364,818
<CURRENT-LIABILITIES>            283,464
<BONDS>                           32,829
<PREFERRED-MANDATORY>                  0
<PREFERRED>                            0
<COMMON>                          65,217
<OTHER-SE>                       965,910
<TOTAL-LIABILITY-AND-EQUITY>   1,364,818
<SALES>                          167,255
<TOTAL-REVENUES>                 167,255
<CGS>                             92,279
<TOTAL-COSTS>                     92,279
<OTHER-EXPENSES>                  55,618
<LOSS-PROVISION>                     305
<INTEREST-EXPENSE>                     9
<INCOME-PRETAX>                 (118,889)
<INCOME-TAX>                     (42,800)
<INCOME-CONTINUING>              (76,089)
<DISCONTINUED>                         0
<EXTRAORDINARY>                        0
<CHANGES>                              0
<NET-INCOME>                     (76,089)
<EPS-BASIC>                         (.59)
<EPS-DILUTED>                       (.59)