Tums contains the active ingredient calcium carbonate. It is an antacid that is approved for acid ingestion, upset stomach, and heartburn. It is available OTC in numerous chewable formulations and ...

The medicine contains the active ingredient calcium carbonate, which acts quickly to neutralize esophageal and stomach acid ...

If you already have heartburn, you can get immediate relief by taking Pepcid Complete, which contains famotidine and fast-acting antacids, such as calcium carbonate (Tums) and magnesium hydroxide ...

Calcium (as carbonate) 500mg; chew tabs; assorted flavors. Calcium blocks absorption of tetracyclines. May affect absorption of other drugs. Absorption blocked by corticosteroids, foods such as ...