
← PEM Currents: The Pediatric Emergency Medicine Podcast24 sep 2025 · 10 min
Penicillin Allergy?
Is that penicillin or amoxicillin allergy real? Probably not. In this episode, we explore how to assess risk, talk to parents, and refer for delabeling. You’ll also learn what happens in the allergy clinic, why the label matters, and how to be a better antimicrobial steward.
Learning Objectives
Describe the mechanisms and clinical manifestations of immediate and delayed hypersensitivity reactions to penicillin, including diagnostic criteria and risk stratification tools such as the PEN-FAST score.
Differentiate between low-, moderate-, and high-risk penicillin allergy histories in pediatric patients and identify appropriate candidates for direct oral challenge or allergy referral based on current evidence and guidelines.
Formulate an evidence-based approach for evaluating and counseling families in the Emergency Department about reported penicillin allergies, including when to recommend outpatient referral for formal delabeling.
Connect with Brad Sobolewski
PEMBlog: PEMBlog.com
Blue Sky: @bradsobo
X (Twitter): @PEMTweets
Instagram: Brad Sobolewski
References
Khan DA, Banerji A, Blumenthal KG, et al. Drug Allergy: A 2022 Practice Parameter Update. J Allergy Clin Immunol. 2022;150(6):1333-1393. doi:10.1016/j.jaci.2022.08.028