<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THE QUARTERLY FINANCIAL STATEMENTS OF INHALE THERAPEUTIC SYSTEMS, INC.
AS FILED ON FORM 10-Q FOR THE PERIOD ENDED JUNE 30, 2000.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 88,775
<SECURITIES> 220,672
<RECEIVABLES> 2,321
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 317,145
<PP&E> 109,278
<DEPRECIATION> (18,213)
<TOTAL-ASSETS> 434,361
<CURRENT-LIABILITIES> 30,498
<BONDS> 237,760
0
0
<COMMON> 291,436
<OTHER-SE> (132,140)
<TOTAL-LIABILITY-AND-EQUITY> 434,361
<SALES> 0
<TOTAL-REVENUES> 24,422
<CGS> 0
<TOTAL-COSTS> 0
<OTHER-EXPENSES> 56,786
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 20,805
<INCOME-PRETAX> (44,579)
<INCOME-TAX> 0
<INCOME-CONTINUING> (44,579)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (44,579)
<EPS-BASIC> (2.40)
<EPS-DILUTED> (2.40)
</TABLE>