Wikis > Pharmacology > Cytotoxic/antineoplastic drugs and Immunosuppressives/Antihistamines > Antihistamines > H2 Antagonists
H2 Antagonists
• selectively block H2 receptors prevent action of histamine at receptors (do not affect histamine release) – do not block H1 receptors
• used for gastric and duodenal ulcers
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