cetirizine

noun ce·tir·i·zine \ se-ˈtir-ə-ˌzēn \
variants: or less commonly cetirizine hydrochloride

Definition of cetirizine

: a long-acting, nonsedating, antihistamine drug taken orally in the form of its hydrochloride C21H25ClN2O3·2HCl especially to treat allergic rhinitis and chronic hives
Note: Cetirizine is marketed under the trademark Zyrtec .

First Known Use of cetirizine

1987


Medical Dictionary

cetirizine

noun ce·tir·i·zine \ se-ˈtir-ə-ˌzēn \

medical Definition of cetirizine

: a long-acting, nonsedating, antihistamine drug taken orally in the form of its dihydrochloride C21H25ClN2O3·2HCl to treat allergic rhinitis and chronic hives
Note: Cetirizine is a derivative of piperazine and an H1 antagonist that binds competitively with histamine to H1 receptors on cell membranes. It is marketed under the trademark Zyrtec.

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