- any of a group of drugs that reduce the production of gastric acid, thereby alleviating acid reflux; promoting the healing of ulcers in the stomach, duodenum, and esophagus; and preventing new ulcers from forming.Abbreviation: PPI
- any of a group of drugs used to treat excessive secretion of acid in the stomach and any resulting ulcers. They block the enzyme (proton pump) in the cells of the gastric glands that secrete hydrochloric acid
