متاکولین

Also known as methacholine bromide, Provocholine®, Acetyl-beta-methylcholine, Acetylmethylcholine, MCh, Methacholine

Methacholine (INN, USAN) (trade name Provocholine), also known as acetyl-β-methylcholine, is a synthetic choline ester that acts as a non-selective muscarinic receptor agonist in the parasympathetic nervous system.