A member asked:

What is the difference between tagamet (cimetidine) and pepcid (famotidine)?

7 doctors weighed in across 2 answers
Dr. Charles Cattano answered

Specializes in Gastroenterology

Very little: Tagamet (cimetidine), Zantac (ranitidine), Pepcid (famotidine) are h2-receptor blockers, introduced by prescription in late 70's/early 80's. All reduce acid production dose-dependently, & promote drug tolerance (requiring increasing doses of drug to block increasing # of receptors with chronic use). Otc dosing is a fraction of original prescription doses. Similar side effects, efficacy, duration.

Answered 4/17/2020

5.9k views

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Dr. Jason Hemming answered

Specializes in Gastroenterology

Same class: Same class of medication so very similar.

Answered 11/23/2019

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