Calcium 500 mg Generic for Tums Assorted Fruit Flavored Chewable Tablets Regular Strength Antacid for Acid Indigestion, Heartburn, Sour Stomach 150 Chewable Tablets per Bottle Pack of 4 used to relieve acid indigestion, heartburn, and sour stomach. DIRECTIONS: Adults and children 12 years and over: Chew 2-4 tablets as symptoms occur. Do not take more than 8 tablets in 24 hours. Do not use the maximum dosage for more than 2 weeks. For children under 12 years: ask a doctor. NDC: 69618-020-15