A successful history of heartburn relief. Antacid, Calcium Supplement Glaxosmthkln Active IngredientsAntacid: Per Tablet: Calcium Carbonate USP 1000 mg. Calcium Supplement: Per 2 Tablets: Calories 10; Sugars 3 g; Calcium 800 mg; Sodium 10 mg Antacid: Chew 2-3 tablets as symptoms occur or as directed by a doctor. Calcium Supplement: Chew 2 tablets once or twice daily. Inactive IngredientsSucrose; Calcium Carbonate; Corn Starch; Talc; Mineral Oil; Natural Flavor; Sodium Polyphosphate UsesAntacid: Relieves: heartburn, sour stomach, acid indigestion, upset stomach associated with these symptoms. Calcium Supplement: As a daily source of extra calcium. Ask a doctor or pharmacist before use if you are taking a prescription drug. Antacids may interact with certain prescription drugs. When using this product: do not take more than 7 tablets in 24 hours; do not use the maximum dosage for more than 2 weeks. Keep out of reach of children.