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EpiPen
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EpiPen Auto-Injector

Generic name:epinephrine injectionEP-i-NEF-rin ]
Brand names: EpiPen 2-Pak, EpiPen JR 2-Pak
Drug classes:Adrenergic bronchodilators, Catecholamines, Vasopressors

Medically reviewed by Philip Thornton, DipPharm. Last updated on Oct 10, 2021.

What is EpiPen?

EpiPen is an injection containing epinephrine, a chemical that narrows blood vessels and opens airways in the lungs. These effects can reverse severe low blood pressure, wheezing, severe skin itching, hives, and other symptoms of an allergic reaction.

EpiPen Auto-Injectors are used to treat severe allergic reactions (anaphylaxis) to insect stings or bites, foods, drugs, and other allergens.

EpiPen is also used to treat exercise-induced anaphylaxis.

EpiPen Auto-Injectors may be kept on hand for self-injection by a person with a history of severe allergic reaction.

An Auto-Injector is a hand-held device that automatically injects a measured dose of medicine.

Warnings

EpiPen Auto-Injectors are used to treat severe allergic reactions (anaphylaxis).

Seek emergency medical attention even after you use EpiPen to treat a severe allergic reaction. The effects may wear off after 10 or 20 minutes. You will need to receive further treatment and observation.

Before using EpiPen a second time, tell your doctor if your first injection caused a serious side effect such as increased breathing difficulty, or dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, confusion, chest pain, shortness of breath, uneven heartbeats, seizure).

The EpiPen Auto-Injector (0.3 mg) is for patients who weigh 66 pounds or more (30 kilograms or more).

The EpiPen Jr Auto-Injector (0.15 m...