Other Information: Each tablet contains: calcium 330 mg; magnesium 70 mg. Phenylketonurics; contains phenylalanine 2.2 mg per tablet. Read the directions and warnings before use. Read the bottle label. It contains important information. Store at 68-77 degrees F (20-25 degrees C). Protect from moisture. Misc: Famotidine 10 mg/calcium carbonate 800 mg/magnesium hydroxide 165 mg tablets. Dual action. Just 1 tablet relieves heartburn due to acid indigestion. From the makers of Zantac. New! Tips for Managing Heartburn: Do not lie flat or bend over after eating. Do not wear tight-fitting clothing around the stomach. Do not eat before bedtime. Raise the head of your bed. Avoid heartburn-causing foods such as rich, spicy, fatty or fried foods, chocolate, caffeine, alcohol, and certain fruits and vegetables. Eat slowly and avoid big meals. If overweight, lose weight. Quit smoking. Questions: Call 1-888-285-9159 (English/Spanish), M-F, 8:30-5 EST.