Allergy and Asthma: Anaphylaxis.

Anaphylaxis is an allergic reaction that occurs rapidly after exposure and is life-threatening. After symptoms of anaphylaxis occur, there is no way to reliably predict whether the patient's condition could progress quickly and become life-threatening. Immediate injection of intramuscular epinephrine is the first-line emergency treatment for anaphylaxis. Other drugs such as corticosteroids or antihistamines are secondary options and should not delay epinephrine administration. The most commonly prescribed form of epinephrine is the costly brand name autoinjector, but less expensive alternatives exist, including generic autoinjectors and prefilled epinephrine syringes. Epinephrine prescriptions should be combined with action plans that guide parents and caregivers on appropriate use. Access to epinephrine at schools, even for students who do not have a prescription, is an important component of preparedness for anaphylaxis.