Increased clearance & reduced t
½ w/ phenytoin, phenobarb, carbamazepine, rifampicin, antithyroid drugs. Weakened effects of anticoagulants, antidiabetics. Muscle weakness w/ anticholinesterase. Increased risk of hypokalemia w/ diuretics, amphotericin B. Increased risk of anti-inflammatory analgesic-induced peptic ulcer. Increased risk of systemic side effects w/ CYP3A inhibitors eg, cobicistat-containing products.