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Dictionary » Muscarinic antagonist

Muscarinic antagonist

Introduction: Muscarinic antagonist

Description of Muscarinic antagonist

Muscarinic antagonist: Natural or synthetic Antimuscarinic Agents inhibit acetylcholine neurotransmitter action at muscarinic receptors. Antimuscarinic drugs are used as antiarrhythmic, antiparkinson, antiasthmatic, and antispasmodic agents, as well as antidote of the natural mushroom alkaloid muscarine (Amanita muscaria) or to prevent parasympathetic stimulation at neuroeffector junctions. (NCI04)
Source: Diseases Database

Muscarinic antagonist: Drugs that bind to but do not activate muscarinic cholinergic receptors (RECEPTORS, MUSCARINIC), thereby blocking the actions of endogenous acetylcholine or exogenous agonists. Muscarinic antagonists have widespread effects including actions on the iris and ciliary muscle of the eye, the heart and blood vessels, secretions of the respiratory tract, GI system, and salivary glands, GI motility, urinary bladder tone, and the central nervous system. Antagonists that discriminate among the various muscarinic receptor subtypes and might allow better control of peripheral and central actions are under development.
Source: MeSH 2007

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