What device is used for severe allergic reactions?

The use of an EpiPen is specifically designed for severe allergic reactions, particularly anaphylaxis. An EpiPen contains a pre-measured dose of epinephrine, which is a hormone that quickly narrows blood vessels and opens airways in the lungs. This rapid response is crucial in treating life-threatening allergic reactions by reducing swelling, increasing blood flow, and improving breathing.

While an auto-injector is a generalized term that can refer to devices like the EpiPen, it does not specify the critical nature of the medication being dispensed. An inhaler is primarily used for respiratory conditions such as asthma, delivering bronchodilators or steroids rather than treating anaphylaxis. A syringe is a versatile medical instrument used for various purposes, including injections, but it does not provide the automatic delivery system that an EpiPen offers, which is necessary during an emergency when timing is critical. Therefore, the EpiPen is the most appropriate and recognized tool for managing severe allergic reactions effectively.