ra·​nit·​i·​dine | \ ra-ˈni-tə-ˌdēn How to pronounce ranitidine (audio) \

Definition of ranitidine

: a histamine blocker C13H22N4O3S that is administered in the form of its hydrochloride to inhibit gastric acid secretion

Examples of ranitidine in a Sentence

Recent Examples on the Web The active ingredient in Zantac, ranitidine, was found to form NDMA over time or when stored at high temperatures. BostonGlobe.com, 14 Oct. 2021 The moves come despite the fact that the FDA has not recalled Zantac or any brands that include ranitidine, nor has the agency recommended patients stop taking drugs with that ingredient. Chris Morris, Fortune, 30 Sep. 2019 For patients taking prescription ranitidine, the FDA said to talk to your doctor about other treatment options before stopping the medicine. Jacqueline Howard, CNN, 1 Apr. 2020 Luckily, there are lots of drugs that can help you out with heartburn struggles that don’t contain ranitidine. Sara Kiley Watson, Popular Science, 6 Apr. 2020 The move from the Food and Drug Administration Wednesday applies to all prescription and over-the-counter versions of ranitidine, best known by the brand name Zantac. CBS News, 1 Apr. 2020 The move comes after months of investigation into certain lots of ranitidine that were found to contain trace amounts of a contaminant called N-Nitrosodimethylamine (NDMA). Erika Edwards, NBC News, 1 Apr. 2020 Even so, the warning has led some pharmacies and manufacturers to stop selling drugs containing Zantac's active ingredient, ranitidine. Linda A. Johnson, chicagotribune.com, 30 Sep. 2019 Some European regulators have initiated recalls of ranitidine made with active ingredient from Saraca as well. Anna Edneybloomberg, Los Angeles Times, 26 Sep. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ranitidine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ranitidine

1979, in the meaning defined above

History and Etymology for ranitidine

probably from ranit- (blend of furan and nitr-) + -idine (as in cimetidine)

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The first known use of ranitidine was in 1979

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Ranjit Singh

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Cite this Entry

“Ranitidine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ranitidine. Accessed 13 Aug. 2022.

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More Definitions for ranitidine


ra·​nit·​i·​dine | \ ra-ˈnit-ə-ˌdēn How to pronounce ranitidine (audio) \

Medical Definition of ranitidine

: an antihistamine that is administered in the form of its hydrochloride C13H22N4O3S·HCl to inhibit gastric acid secretion (as in the treatment of duodenal ulcers or Zollinger-Ellison syndrome) — see zantac

More from Merriam-Webster on ranitidine

Britannica.com: Encyclopedia article about ranitidine


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