Smooth Antacid, Extra Strength, 750 mg, Chewable Tablets, Assorted Fruit Calcium Carbonate 750 mg. Naturally & artificially flavored. Compare to Tums Extra Strength Smoothies active ingredients (This product is not manufactured or distributed by GlaxoSmithKline, the distributor of Extra Strength Tums Smoothies). Relief of: Upset stomach, heartburn, and acid indigestion. Quality guaranteed. www.betterlivingbrandsLLC.com. Scan here for more information. Questions or comments? 1-866-467-2748. Other information: Each Tablet Contains: Calcium 300 mg. Store at room temperature. Keep the container tightly closed.