TUMS® Antacid Assorted Berries. Calcium carbonate. Ultra strength 1000. Chewable tablets. Uses: Relieves: Heartburn. Acid indigestion. Sour stomach. Upset stomach associated with these symptoms. Other information: Each tablet contains: Elemental calcium 400mg, sodium 2mg. Gluten-free. Questions Call: 1-800-897-7535 weekdays. Visit: www.tums.com. ©2014 GSK.