Remove Allergic Reactions Remove Urgent Care Remove Wellness
article thumbnail

Cetirizine Vs Diphenhydramine For the Treatment of Acute Urticaria in the ED

RebelEM

Background: Diphenhydramine, a first-generation antihistamine, is the most common pharmacologic agent used to treat acute allergic reactions. Diphenhydramine versus nonsedating antihistamines for acute allergic reactions: a literature review. Patients were randomized in a 1:1 ratio. Allergy Asthma Proc. PMID: 17883909.