Background: Penicillin is the most commonly documented drug “allergy” on hospital admission. Patients with listed penicillin allergies have higher rates of treatment failures, antibiotic resistance, and average length of stay. This has downstream implications impacting healthcare utilization, infection prevalence, and cost. However, the majority of these reported allergies are inaccurate, and over 90% of these [...]

Case Presentation: 68-year-old male with a history of recurrent angioedema, complicated by intubation, presented to the emergency room (ER) for progressive tongue swelling and dyspnea prior to arrival. He was on aspirin 81 mg for years with a recent addition of cilostazol for peripheral artery disease. Physical exam was significant for tongue and lip swelling. [...]