Other Information: Each Tablet Contains: elemental calcium 300 mg. Do not use if printed seal under cap is torn or missing. Store at room temperature. Keep the container tightly closed. Misc: Calcium carbonate 750 mg. Rich in calcium. Relief of: acid indigestion/heartburn. Quality guaranteed. Compare to Tums E-X active ingredient (This product is not manufactured or distributed by GlaxoSmithKline, the distributor of Tums EX). www.betterlivingbrandsLLC.com. Product of USA.