Medical Dictionary

cetirizine

noun ce·tir·i·zine \se-ˈtir-ə-ˌzēn\

Medical Definition of CETIRIZINE

:  an H1 antagonist administered orally in the form of its dihydrochloride C21H25ClN2O3·2HCl to treat allergic rhinitis and chronic hives—see zyrtec

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