Rolaids® Antacid/Calcium & Magnesium Supplement Regular Strength Chewable Tablets Mint. Naturally & artificially flavored. Goes to work instantly. Uses: Relieves: Heartburn. Sour stomach. Acid indigestion. Other Information: Each tablet contains: Calcium 220 mg, Magnesium 45 mg. © 2014 Chattem, Inc.