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

RebelEM

2007 Jul-Aug;28(4):418-26. Multicenter study of emergency department visits for insect sting allergies. Multicenter study of emergency department visits for food allergies. Patients were randomized in a 1:1 ratio. The effectiveness of IV cetirizine was determined to be statistically non-inferior. PMID: 17883909.