Definition of ranitidine
: a histamine blocker C13H22N4O3S that is administered in the form of its hydrochloride to inhibit gastric acid secretion
Origin and Etymology of ranitidine
probably from ranit- (blend of furan and nitr-) + -idine (as in cimetidine)
First Known Use: 1979
Seen and Heard
What made you want to look up ranitidine? Please tell us where you read or heard it (including the quote, if possible).