metha·​cho·​line ˌmeth-ə-ˈkō-ˌlēn How to pronounce methacholine (audio)
: a parasympathomimetic drug administered in the form of its crystalline chloride C8H18ClNO2 especially to diagnose hypersensitivity of the bronchial air passages (as in asthma) see mecholyl, provocholine

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Cite this Entry

“Methacholine.” Medical Dictionary, Merriam-Webster, Accessed 21 Jul. 2024.

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