Intensity of bleedings may be increased w/ oral anticoagulants. Increased risk of bleeding w/ warfarin; glycoprotein IIb/IIIa inhibitors; ASA; heparin; thrombolytic agents; SSRIs. Potentiated effect of ASA on collagen-induced platelet aggregation. Increased occult GI blood loss w/ naproxen. Increased risk of GI bleeding w/ NSAIDs including COX-2 inhibitors.
Reduced drug levels of clopidogrel active metabolite w/ strong or moderate CYP2C19 inhibitors eg, omeprazole & esomeprazole, fluvoxamine, fluoxetine, moclobemide, voriconazole, fluconazole, ticlopidine, carbamazepine & efavirenz. Decreased exposure of clopidogrel active metabolite w/ omeprazole & esomeprazole. Risk of increased plasma conc of drugs primarily cleared by CYP2C8 metabolism (eg, repaglinide, paclitaxel).