Increased inhibition of ADP-induced
ex vivo platelet aggregation w/ aspirin. Clopidogrel & other antiplatelet agents; warfarin & other anticoagulant agents. Increased C
max & AUC w/ strong (eg, ketoconazole, itraconazole, fluconazole, miconazole, fluvoxamine, fluoxetine, nefazodone, sertraline) & moderate (eg, erythromycin & other macrolides, diltiazem, grapefruit juice) CYP3A4 inhibitors. Decreased C
ss, C
max & AUC w/ lovastatin. May alter antiplatelet effect w/ CYP3A4 & CYP2C19 inducers (eg, carbamazepine, phenytoin, rifampicin, St. John's wort).