Calcium Carbonate 500 mg Fast Relief of Upset Stomach, Heartburn, and Acid Indigestion Naturally and Artificially Flavored Compare to the active ingredient in Regular Strength TUMS (This product is not manufactured or distributed by GlaxoSmithKline LLC, owner of the registered trademark, Regular Strength TUMS). Regular Strength. Walgreens pharmacist recommended. Our pharmacists recommend the Walgreen brand. We invite you to compare to national brands. walgreens.com. Questions or comments? 1-866-467-2748. Safety sealed: Do not use if printed seal under cap is torn or missing. Adults and Children 12 Years of Age and Over: Chew 2-4 tablets completely as symptoms occur, or as directed by a doctor. Do no swallow tablets whole. Do not take for symptoms that persists for more than 2 weeks unless advised by a doctor. Relieves: heartburn, acid indigestion, sour stomach, upset stomach associated with these symptoms. ©2023 Walgreen Co.