Medical Definition of H2 antagonist

1. A class of anti-ulcer medication which work through the inhibition of basal and nocturnal gastric acid secretion by competitive inhibition of the action of histamine at histamine H2 receptor sites on the parietal cells. Drugs of this type block gastric acid secretion and are therefore clinically useful in treating duodenal ulcers. Examples include cimetidine (Tagamet), famotidine (Pepcid), nizatidine (Axid) and ranitidine (Zantac). (27 Sep 1997)

Lexicographical Neighbors of H2 Antagonist

H.E.
H.M.S. Bounty
H.P.
H. G. Wells
H. H. Munro
H. J. Eysenck
H. L. Mencken
H. pylori
H1-related protein-tyrosine phosphatase
H1N1
H2H
H2O
H2Q
H2 antagonist (current term)
H2 blocker
H2 histocompatibility
H5N1
HA
HA-MRSA
HA-tag
HA1 virus
HA2 virus
HAARP
HAART
HAAT
HAC
HACCP
HACE

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