Some aspects of the action of histamine antagonists.
1948
W A BAIN, and
F F HELLIER, and
R P WARIN
UI
MeSH Term
Description
Entries
D006632
Histamine
An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.
Drugs that bind to but do not activate histamine receptors, thereby blocking the actions of histamine or histamine agonists. Classical antihistaminics block the histamine H1 receptors only.