Methacholine

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

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.

Excerpt from the Wikipedia article “Methacholine”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Fvasconcellos, Public domain, via Wikimedia Commons.