Acetylcholine Receptor - Receptor Types

Receptor Types

Molecular biology has shown that the nicotinic and muscarinic receptors belong to distinct protein superfamilies.

ACh and its receptors
Drug Nm Nn M1 M2 M3
ACh, Charbacol, AChEi (Psysostigmine, Galantamine, Neostigmine, Pyridostigmine) + + + + +
Nicotine, Varenicline + +
Succinylcholine +/-
Atracurium, Vecuronium, Tubocurarine, Pancuronium -
Epibatidine, DMPP +
Trimethaphan, Mecamylamine, Bupropion, Dextromethophan, Hexamethonium -
Muscarine, Methacholine, Oxotremorine, Bethanechol, Pilocarpine + + +
Atropine, Tolterodine, Oxybutynin - - -
Vedaclidine, Talsaclidine, Xanomeline, Ipatropium +
Pirenzepine, Telenzepine -
Methoctramin -
Darifenacin, 4-DAMP, Darifenacin, Solifenacin -

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