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What (who) is H3 receptor antagonist - definition
H3 receptor antagonist
An H3 receptor antagonist is a classification of drugs used to block the action of histamine at the H3 receptor.
Receptor antagonist
![receptor]] molecule, inhibiting the signal produced by a receptor–agonist coupling.](https://commons.wikimedia.org/wiki/Special:FilePath/Antagonist 2.png?width=200 "receptor]] molecule, inhibiting the signal produced by a receptor–agonist coupling.")
CLASS OF PHARMACOLOGICAL AGENTS, WHICH REDUCES OR DIMINISHES THE EFFECT OF AN AGONIST ON A RECEPTOR
Competitive antagonist; Neutral antagonist; Receptor antagonists; Receptor Antagonist; Receptor Antagonists; Antagonist (pharmacology); Receptor antagonism; Antagonist (medical); Antagonist drug; Antagonist (drug); Silent antagonist; Uncompetitive antagonist; Noncompetitive antagonist; Reversible competitive antagonist; Irreversible competitive antagonist; Non-competitive antagonist; Reversible antagonist; Insurmountable antagonist; Full antagonist; Silent antagonism; Noncompetitive antagonism; Non-competitive antagonism; Blocking agent; Functional inhibition; Functional antagonism
A receptor antagonist is a type of receptor ligand or drug that blocks or dampens a biological response by binding to and blocking a receptor rather than activating it like an agonist. Antagonist drugs interfere in the natural operation of receptor proteins.
Histamine H3 receptor
MAMMALIAN PROTEIN FOUND IN HOMO SAPIENS
H3 receptor; Receptors, histamine h3; H₃ receptor; HRH3; HRH3 (gene)
Histamine H3 receptors are expressed in the central nervous system and to a lesser extent the peripheral nervous system, where they act as autoreceptors in presynaptic histaminergic neurons and control histamine turnover by feedback inhibition of histamine synthesis and release. The H3 receptor has also been shown to presynaptically inhibit the release of a number of other neurotransmitters (i.
