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  1. Drug Classes
  2. H2 Antagonists

H2 Antagonists

H2 antagonists, or histamine-2 antagonists, are used to treat heartburn, gastroesophageal reflux disease (GERD), gastrointestinal hypersecretory conditions and gastrointestinal ulcers. They work by blocking histamine-induced gastric acid secretion in the stomach lining. Commonly used H2 antagonists include Zantac (ranitidine) and Pepcid (famotidine).

Drugs classified as H2 Antagonists are frequently used to treat the following conditions:

Click on a drug below in order to find information and discounted prices at pharmacies near you.


Photo of the drug Acid Reducer (famotidine). Acid Reducer (famotidine)
H2 Antagonists
Commonly used to treat esophagitis.
Photo of the drug Acid Reducer (ranitidine). Acid Reducer (ranitidine)
H2 Antagonists
Commonly used to treat Heartburn, Duodenal Ulcer, Gastric Ulcer, systemic mastocytosis, dyspepsia, gastroesophageal reflux.
Photo of the drug Zantac. Zantac
H2 Antagonists
Commonly used to treat Heartburn, Duodenal Ulcer, Gastric Ulcer, systemic mastocytosis, dyspepsia, gastroesophageal reflux.
Photo of the drug Pepcid. Pepcid
H2 Antagonists
Commonly used to treat esophagitis.
Photo of the drug Nizatidine. Nizatidine
H2 Antagonists
Commonly used to treat Duodenal Ulcer, Gastric Ulcer, dyspepsia, gastroesophageal reflux, Helicobacter pylori (H. pylori) eradication.
Photo of the drug Pepcid Ac. Pepcid Ac
H2 Antagonists
Commonly used to treat dyspepsia.
Photo of the drug Tagamet Hb. Tagamet Hb
H2 Antagonists
Commonly used to treat dyspepsia.
Photo of the drug Cimetidine. Cimetidine
H2 Antagonists
Commonly used to treat Duodenal Ulcer.
Photo of the drug Melatin. Melatin
H2 Antagonists
Photo of the drug Ranitidine. Ranitidine
H2 Antagonists
Commonly used to treat Duodenal Ulcer, Gastric Ulcer, systemic mastocytosis, dyspepsia, gastroesophageal reflux, hiatal hernia.
Photo of the drug Theraflu Flu-sore Throat. Theraflu Flu-sore Throat
H2 Antagonists
Photo of the drug Famotidine. Famotidine
H2 Antagonists
Commonly used to treat Duodenal Ulcer, Gastric Ulcer, systemic mastocytosis, dyspepsia, gastroesophageal reflux, Helicobacter pylori (H. pylori) eradication.
Photo of the drug Axid. Axid
H2 Antagonists
Commonly used to treat Duodenal Ulcer, Gastric Ulcer.
Photo of the drug Ranitidine Hydrochloride. Ranitidine Hydrochloride
H2 Antagonists
Commonly used to treat dyspepsia.
Photo of the drug Zantac 75. Zantac 75
H2 Antagonists
Commonly used to treat dyspepsia.
Photo of the drug Zantac 150. Zantac 150
H2 Antagonists
Commonly used to treat Heartburn, Duodenal Ulcer, Gastric Ulcer, systemic mastocytosis, dyspepsia, gastroesophageal reflux.
Photo of the drug Pepcid Ac Maximum Strength. Pepcid Ac Maximum Strength
H2 Antagonists
Commonly used to treat esophagitis.
Photo of the drug Heartburn Relief. Heartburn Relief
H2 Antagonists
Commonly used to treat dyspepsia.

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