Compare to the active ingredient in Tagamet HB 200. Heartburn relief with a one-tablet dose? It's in your hands with Equate Cimetidine Tablets 200 mg, an acid reducer that can prevent and relieve heartburn and acid indigestion with one coated tablet. Take with one glass of water up to 30 minutes prior to eating for prevention of heartburn and acid indigestion. Take any time for heartburn relief. Don't let heartburn, acid indigestion or sour stomach stop you from eating or drinking favorite foods or beverages, when prevention and relief are just one tablet away. For adults and children 12 years and over. This product is gluten free.