cimetidine
noun
ci·met·i·dine
sī-ˈme-tə-ˌdēn 
: a histamine analog C10H16N6S that inhibits gastric acid secretion and is used especially in the treatment of duodenal ulcers
Examples of cimetidine in a Sentence
Recent Examples on the Web
The authors cite a study using 400 milligrams of cimetidine three times daily, which is much higher than the heartburn dose.
—
Joe and Teresa Graedon, oregonlive, 29 May 2023
Researchers offering case reports of success with cimetidine against shingles have called for robust clinical trials.
—Joe and Teresa Graedon, oregonlive, 29 May 2023
An article in the Journal of the American Podiatric Medical Association (November 1995) reported several anecdotal reports of success with cimetidine (Tagamet).
—Joe Graedon, M.s., and Teresa Graedon, oregonlive, 13 Mar. 2023
Are there any problems taking cimetidine occasionally?
—Dr. Keith Roach, oregonlive, 2 June 2022
For example, there is some benefit to the medicine cimetidine, normally used as an antacid treatment.
—Dr. Keith Roach, oregonlive, 8 June 2021
Alternative histamine blockers like famotidine (Pepcid) and cimetidine (Tagamet) have so far not been found to contain NDMA, Dr. Smith said, and neither has Prilosec nor other proton pump inhibitors.
—Christina Caron, New York Times, 18 Apr. 2020
To date, the FDA's testing has not found NDMA in famotidine (Pepcid), cimetidine (Tagamet), esomeprazole (Nexium), lansoprazole (Prevacid) or omeprazole (Prilosec).
—USA TODAY, 1 Apr. 2020
Other heartburn medications, such as famotidine (Pepcid), cimetidine (Tagamet), esomeprazole (Nexium), lansoprazole (Prevacid) and omeprazole (Prilosec) have not tested positive for signs of NDMA.
—NBC News, 20 Jan. 2020
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Joe and Teresa Graedon, oregonlive, 29 May 2023
Researchers offering case reports of success with cimetidine against shingles have called for robust clinical trials.
—Joe and Teresa Graedon, oregonlive, 29 May 2023
An article in the Journal of the American Podiatric Medical Association (November 1995) reported several anecdotal reports of success with cimetidine (Tagamet).
—Joe Graedon, M.s., and Teresa Graedon, oregonlive, 13 Mar. 2023
Are there any problems taking cimetidine occasionally?
—Dr. Keith Roach, oregonlive, 2 June 2022
For example, there is some benefit to the medicine cimetidine, normally used as an antacid treatment.
—Dr. Keith Roach, oregonlive, 8 June 2021
Alternative histamine blockers like famotidine (Pepcid) and cimetidine (Tagamet) have so far not been found to contain NDMA, Dr. Smith said, and neither has Prilosec nor other proton pump inhibitors.
—Christina Caron, New York Times, 18 Apr. 2020
To date, the FDA's testing has not found NDMA in famotidine (Pepcid), cimetidine (Tagamet), esomeprazole (Nexium), lansoprazole (Prevacid) or omeprazole (Prilosec).
—USA TODAY, 1 Apr. 2020
Other heartburn medications, such as famotidine (Pepcid), cimetidine (Tagamet), esomeprazole (Nexium), lansoprazole (Prevacid) and omeprazole (Prilosec) have not tested positive for signs of NDMA.
—NBC News, 20 Jan. 2020
Cite this Entry
“Cimetidine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cimetidine. Accessed 30 Apr. 2025.
Copy CitationMedical Definition
cimetidine
noun
ci·met·i·dine
sī-ˈmet-ə-ˌdēn
: an H2 antagonist C10H16N6S that like histamine contains the ring structure of imidazole and is used to inhibit gastric acid secretion in conditions in which such secretion produces duodenal or gastric ulcers or erosive lesions (as in serious cases of gastroesophageal reflux disease) see tagamet
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