Increased intensity of bleeding w/ oral anticoagulants. Pharmacodynamic interaction w/ glycoprotein IIb/IIIa inhibitors & heparin. Thrombolytics. Increased occult GI blood loss w/ naproxen. Increased risk of bleeding w/ SSRIs. Reduced drug levels of active metabolite w/ CYP2C19 inhibitors. Inhibit effect of uricosurics (eg, benzbromarone, probenecid, sulfinpyrazone). Inhibit renal clearance of MTX. ACE inhibitors, acetazolamide, anticonvulsants (phenytoin & valproic acid), β-blockers, diuretics & oral hypoglycemic agents; Ca antagonists, cholesterol-lowering agents, coronary vasodilators, antidiabetic agents (insulin), antiepileptic agents & GPIIb/IIIa antagonist.