Muscarinic Antagonists

**Definition:** Drugs that bind to but do not activate MUSCARINIC RECEPTORS, 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.

**Tree numbers:** - D27.505.519.625.120.200.500 - D27.505.696.577.120.200.500

**Synonyms:** - Antimuscarinics - Cholinergic Muscarinic Antagonist - Cholinergic Muscarinic Antagonists - Antimuscarinic - Muscarinic Antagonist - Antimuscarinic Agents - Antimuscarinic Agent