Famotidine, sold under the brand name Pepcid among others, is a histamine H2 receptor antagonist medication that decreases stomach acid production. It is used to treat peptic ulcer disease, gastroesophageal reflux disease, and Zollinger–Ellison syndrome. It is taken by mouth or by injection into a vein. It begins working within an hour.
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| pronounce = | tradename = Pepcid, Zantac 360, others | Drugs.com = | MedlinePlus = a687011 | DailyMedID = Famotidine | pregnancy_AU = B1 | pregnancy_AU_comment = | pregnancy_category = | routes_of_administration = Oral, intravenous | class = Histamine H2 receptor antagonist | ATC_prefix = A02 | ATC_suffix = BA03 | ATC_supplemental =
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