how does antacid relieve the pain of indigestion
Antacids neutralize excess stomach acid to relieve heartburn, sour stomach, acid indigestion, and stomach upset. They can also be used to relieve the pain of stomach and duodenal ulcers.f OTC antacids and acid blockers do not relieve your heartburn, your doctor may give you a prescription for other medicines, such as: 1  Prescription acid blockers. 2  Proton pump inhibitors. 3  Promotility agents.