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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. 2007 Jul-Aug;28(4):418-26. Resources: Banerji A, Long AA, Camargo CA Jr.

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Subcutaneous Rehydration

Pediatric Emergency Playbook

It’s not an allergic reaction: even with the old preparations of hyaluronidase, allergic reactions were rare, and now they are very rare with the recombinant preparation. in 2007 compared subcutaneous administration of lactated ringer’s solution by gravity with and without hyalurondase. J Am Geriatr Soc.