famotidine

noun

fa·​mo·​ti·​dine fə-ˈmōt-ə-ˌdīn  -ˌdēn 

: an H₂ antagonist C₈H₁₅N₇O₂S₃ used to inhibit gastric acid secretion especially in the short-term treatment of gastric and duodenal ulcers and gastroesophageal reflux disease and in the treatment of disorders (as Zollinger-Ellison syndrome) involving gastric acid hypersecretion see pepcid