Cetirizine Vs Diphenhydramine For the Treatment of Acute Urticaria in the ED
REBEL EM
JANUARY 23, 2023
Background: Diphenhydramine, a first-generation antihistamine, is the most common pharmacologic agent used to treat acute allergic reactions. Patients were randomized in a 1:1 ratio. Diphenhydramine versus nonsedating antihistamines for acute allergic reactions: a literature review. 2005 Sep;116(3):643-9.
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