Calcium Carbonate

**Semantic type:** Pharmacologic Substance

**Definition:** The carbonic salt of calcium (CaCO3). Calcium carbonate is used therapeutically as a phosphate buffer in hemodialysis, as an antacid in gastric hyperacidity for temporary relief of indigestion and heartburn, and as a calcium supplement for preventing and treating osteoporosis. (NCI04)

**Synonyms:** - CALCIUM CARBONATE - calcium carbonate