<P> H antagonists , sometimes referred to as H2RA and also called H blockers , are a class of medications that block the action of histamine at the histamine H receptors of the parietal cells in the stomach . This decreases the production of stomach acid . H antagonists can be used in the treatment of dyspepsia , peptic ulcers and gastroesophageal reflux disease . They have been surpassed by proton pump inhibitors ( PPIs ) ; the PPI omeprazole was found to be more effective at both healing and alleviating symptoms of ulcers and reflux oesophagitis than the H blockers ranitidine and cimetidine . </P>
<P> H antagonists , sometimes referred to as H2RA and also called H blockers , are a class of medications that block the action of histamine at the histamine H receptors of the parietal cells in the stomach . This decreases the production of stomach acid . H antagonists can be used in the treatment of dyspepsia , peptic ulcers and gastroesophageal reflux disease . They have been surpassed by proton pump inhibitors ( PPIs ) ; the PPI omeprazole was found to be more effective at both healing and alleviating symptoms of ulcers and reflux oesophagitis than the H blockers ranitidine and cimetidine . </P>
what does a histamine 2 receptor antagonist do
what does a histamine 2 receptor antagonist do
block the action of histamine at the histamine H receptors of the parietal cells in the stomach decreases the production of stomach acid
block the action of histamine at the histamine H receptors of the parietal cells in the stomach decreases the production of stomach acid