<unk> s are classified according to the receptors that are affected: * Antimuscarinic agents operate on the muscarinic acetylcholine receptors. The majority of<unk>  drugs are antimuscarinics. * Antinicotinic agents operate on the nicotinic acetylcholine receptors. The majority of these are non-depolarising skeletal muscle relaxants for surgical use that are structurally related to curare. Several are depolarizing agents.
Anticholinergic
Muscle relaxant
Narcotic
Antidote
Abirritant
Anticoagulant
Anxiolytic
Anticonvulsant