<ARTICLE>                     5

<LEGEND>

                             Financial Data Schedule

                    Mylan Laboratories Inc. and Subsidiaries

                           Article 5 of Regulation S-X

The  schedule  contains  summary  financial   information   extracted  from  the
Consolidated  Balance Sheet at December 31, 2000 and the Consolidated  Statement
of Earnings for the three months ended December 31, 2000 and is qualified in its
entirety by reference to such financial statements.



<CIK>                         0000069499
<NAME>                        none



                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>               MAR-31-2001

<PERIOD-END>                    Dec-31-2000

<CASH>                                 212,397
<SECURITIES>                            33,953
<RECEIVABLES>                          307,090
<ALLOWANCES>                           102,731
<INVENTORY>                            178,067
<CURRENT-ASSETS>                       783,519
<PP&E>                                 292,377
<DEPRECIATION>                         118,742
<TOTAL-ASSETS>                       1,397,273
<CURRENT-LIABILITIES>                  266,677
<BONDS>                                 25,340
<PREFERRED-MANDATORY>                        0
<PREFERRED>                                  0
<COMMON>                                65,291
<OTHER-SE>                           1,030,263
<TOTAL-LIABILITY-AND-EQUITY>         1,397,273
<SALES>                                598,048
<TOTAL-REVENUES>                       598,048
<CGS>                                  321,673
<TOTAL-COSTS>                          321,673
<OTHER-EXPENSES>                       167,470
<LOSS-PROVISION>                         1,275
<INTEREST-EXPENSE>                          13
<INCOME-PRETAX>                         (7,710)
<INCOME-TAX>                            (2,775)
<INCOME-CONTINUING>                     (4,935)
<DISCONTINUED>                              0
<EXTRAORDINARY>                             0
<CHANGES>                                   0
<NET-INCOME>                            (4,935)
<EPS-BASIC>                              (0.04)
<EPS-DILUTED>                            (0.04)