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    Did you mean Cetirizine?
    GlossaryCetirizine

    antihistamine used to relieve allergy symptoms

    Cetirizine, commonly known by the brand name Zyrtec, is an antihistamine used to relieve allergy symptoms such as runny nose, sneezing, and itchy eyes. It works by blocking histamine, a substance in the body that causes allergic reactions.

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