Term Name:	H1-receptor antagonist
Synonyms:	classical antihistamines, classical antihistaminics, H1 antihistaminics, H1 receptor antagonists, H1 receptor blockaders, H1-receptor antagonists, H1-receptor blocker, H1-receptor blockers
Definition:	H1-receptor antagonists are the drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine.
Ontology:	ChEBI [CHEBI:37955]  ( EBI )