text: RESULTS: << Ketorolac >> was six times more active against COX-1 (IC(50) = 0.02 microM) than COX-2 (IC(50) = 0.12 microM) while bromfenac was approximately 32 times more active against COX-2 (IC(50) = 0.0066 microM) than [[ COX-1 ]] (IC(50) = 0.210 microM).