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    Did you mean Diphenhydramine?
    GlossaryDiphenhydramine

    antihistamine used to treat allergies and induce sleep

    Diphenhydramine, commonly known as Benadryl, is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold, such as rash, itching, watery eyes, and sneezing. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms. Additionally, it has sedative properties and is sometimes used as a sleep aid.

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