Calcium carbonate chewable tablets help reduce your stomach's acidity level, providing relief from heartburn and acid indigestion. Packaged for individual use to replenish first aid stations and kits. Contains: Calcium Carbonate; Description: 50 Packets of 2 Tablets Box; For Use With: PhysiciansCare® by First Aid Only® 14302, 14303, 50000; Mounting: No.