<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CHATTEM,
INC.'S UNAUDITED FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-2000
<PERIOD-START> DEC-01-1999
<PERIOD-END> MAY-31-2000
<CASH> 2,325
<SECURITIES> 0
<RECEIVABLES> 62,312
<ALLOWANCES> 850
<INVENTORY> 25,129
<CURRENT-ASSETS> 97,085
<PP&E> 49,923
<DEPRECIATION> 21,017
<TOTAL-ASSETS> 491,712
<CURRENT-LIABILITIES> 59,466
<BONDS> 360,864
0
0
<COMMON> 1,977
<OTHER-SE> 52,030
<TOTAL-LIABILITY-AND-EQUITY> 491,712
<SALES> 142,007
<TOTAL-REVENUES> 142,007
<CGS> 38,137
<TOTAL-COSTS> 108,134
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 18,190
<INCOME-PRETAX> 15,810
<INCOME-TAX> 5,983
<INCOME-CONTINUING> 9,827
<DISCONTINUED> 0
<EXTRAORDINARY> (110)
<CHANGES> (542)
<NET-INCOME> 9,175
<EPS-BASIC> .95
<EPS-DILUTED> .94
</TABLE>