• synonyms


[ ra-nit-i-deen ]
/ ræˈnɪt ɪˌdin /

noun Pharmacology.

an antihistamine, C13H22N4O3S·HCl, that inhibits the formation of gastric acid, used in the treatment of peptic ulcers and gastroesophageal reflux disease.

Nearby words

rani, ranid, ranikhet disease, ranine, ranine artery, ranitidine, ranjit singh, rank, rank and file, rank scale, rank, otto Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for ranitidine


[ rə-nĭtĭ-dēn′ ]


An antagonist for one of two types of histamine receptors occurring on the surfaces of cells, especially gastric cells, that acts by inhibiting gastric acid secretion and is used in the treatment of duodenal ulcers.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.