Angioedema associated with droperidol administration.

Angioedema, also known as angioneurotic edema or Quincke's disease, is a well-demarcated, localized edema involving the subcutaneous tissues that may cause upper-airway obstruction. We report the case of a previously healthy 19-year-old man with no known drug allergies in whom angioedema with significant tongue swelling and protrusion developed within 10 minutes of the administration of a single IV dose of droperidol.