<ARTICLE> 5 <CIK> 0001010915 <NAME> MICROCIDE PHARMACEUTICALS, INC. <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> APR-1-2000 <PERIOD-END> JUN-30-2000 <EXCHANGE-RATE> 1 <CASH> 4,209 <SECURITIES> 14,914 <RECEIVABLES> 590 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 20,194 <PP&E> 20,197 <DEPRECIATION> (13,486) <TOTAL-ASSETS> 27,826 <CURRENT-LIABILITIES> 4,737 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 68,010 <OTHER-SE> (46,274) <TOTAL-LIABILITY-AND-EQUITY> 27,826 <SALES> 0 <TOTAL-REVENUES> 1,521 <CGS> 0 <TOTAL-COSTS> 5,195 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 66 <INCOME-PRETAX> (3,451) <INCOME-TAX> 0 <INCOME-CONTINUING> (3,451) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,451) <EPS-BASIC> (0.31) <EPS-DILUTED> (0.31)