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 For patients taking prescription ranitidine, the FDA said to talk to your doctor about other treatment options before stopping the medicine. Jacqueline Howard, CNN, "FDA calls for heartburn drug Zantac to be pulled from market immediately," 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, "The FDA just pulled popular heartburn drug Zantac due to cancer risk," 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, "Zantac and other heartburn drugs recalled over possible cancer link," 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, "FDA orders all Zantac heartburn products off store shelves," 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, "What should Zantac patients do? And more heartburn drug answers.," 30 Sep. 2019 Some European regulators have initiated recalls of ranitidine made with active ingredient from Saraca as well. Anna Edneybloomberg, Los Angeles Times, "Generic Zantac is recalled from major U.S. pharmacies after carcinogen is found in pills," 26 Sep. 2019 The experts determined that a contaminant and probable carcinogen called N-Nitrosodimethylamine (NDMA) found in ranitidine meds can increase over time when not properly stored. Benjamin Vanhoose, PEOPLE.com, "FDA Orders All Zantac Medication Products Taken Off Shelves Immediately," 2 Apr. 2020 Since then, the agency has confirmed that the issue is how ranitidine naturally breaks down in normal storage conditions, and has nothing to do with the way it is manufactured. TheWeek, "FDA says heartburn drug Zantac should be immediately pulled from shelves," 2 Apr. 2020

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.

See More

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)

Keep scrolling for more

Learn More about ranitidine

Time Traveler for ranitidine

Time Traveler

The first known use of ranitidine was in 1979

See more words from the same year

Statistics for ranitidine

Last Updated

3 Jun 2020

Cite this Entry

“Ranitidine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ranitidine. Accessed 4 Jul. 2020.

Keep scrolling for more

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

Comments on ranitidine

What made you want to look up ranitidine? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

A More Exception(al) Quiz

  • hot dog  hot dog  hot dog  hot dog cat
  • Which of the following words is not a synonym for ‘a young person’?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!