Cimetidine: Uses, Dosage, and Side Effects – KnowYourOTCs
Safety guide for cimetidine. Cimetidine is approved by the U.S. Food and Drug Administration (FDA) and is safe and effective when used according to the Drug Facts label. Ask a healthcare provider before use if: You are taking the asthma medicine theophylline. You are taking the blood-thinning drug warfarin.