Anaphylaxis

Anaphylaxis (pronounced an-uh-fil-LAX-is) is a severe and potentially life-threatening allergic reaction. Learn about its causes, symptoms and treatment.

About Anaphylaxis

Get information about the causes of anaphylaxis, plus tips for preventing and treating it.

Symptoms of Anaphylaxis

Learn about the several ways that anaphylactic symptoms can present, including biphasic anaphylaxis.

Treating Anaphylaxis

Patients and their families should know how to respond to a severe allergic reaction—starting with how to use an epinephrine auto-injector.

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