kX-100 Sildenafil Citrate Cimetidine
ModerateTaking Cimetidine (800 mg), a nonspecific CYP inhibitor, with Sildenafil (50 mg) raised Sildenafil blood levels by 56% in healthy volunteers.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.