<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
This Schedule contains summary financial information extracted from the Watson
Pharmaceuticals, Inc. Form 10-Q for the period ended September 30, 2000 and is
qualified in its entirety by reference to such report.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 103,334
<SECURITIES> 23,504
<RECEIVABLES> 87,282
<ALLOWANCES> 1,500
<INVENTORY> 257,552
<CURRENT-ASSETS> 712,970
<PP&E> 277,764
<DEPRECIATION> 93,619
<TOTAL-ASSETS> 2,691,657
<CURRENT-LIABILITIES> 217,350
<BONDS> 499,213
0
0
<COMMON> 339
<OTHER-SE> 1,618,148
<TOTAL-LIABILITY-AND-EQUITY> 2,691,657
<SALES> 552,953
<TOTAL-REVENUES> 552,953
<CGS> 229,245
<TOTAL-COSTS> 229,245
<OTHER-EXPENSES> (336,034)
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 15,898
<INCOME-PRETAX> 363,110
<INCOME-TAX> 177,098
<INCOME-CONTINUING> 186,012
<DISCONTINUED> 0
<EXTRAORDINARY> (1,216)
<CHANGES> 0
<NET-INCOME> 184,796
<EPS-BASIC> 1.90
<EPS-DILUTED> 1.86
</TABLE>