promethazine

noun
pro·​meth·​a·​zine | \ (ˈ)prō-ˈmeth-ə-ˌzēn How to pronounce promethazine (audio) \

Medical Definition of promethazine

: a crystalline antihistamine drug derived from phenothiazine and used chiefly in the form of its hydrochloride C17H20N2S·HCl — see phenergan

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Cite this Entry

“Promethazine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/promethazine. Accessed 9 Aug. 2020.

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