National Institutes of Health

The primary NIH organization for research on Anaphylaxis is theNational Institute of Allergy and Infectious Diseases

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Anaphylaxis

Also called: Anaphylactic shock

Summary

Anaphylaxis is a serious allergic reaction. It can begin very quickly, and symptoms may be life-threatening. The most common causes are reactions to foods (especially peanuts), medications, andstinging insects. Other causes include exercise and exposure to latex. Sometimes no cause can be found.

It can affect many organs:

Skin - itching, hives, redness, swelling
Nose - sneezing, stuffy nose, runny nose
Mouth - itching, swelling of the lips or tongue
Throat - itching, tightness, trouble swallowing, swelling of the back of the throat
Chest - shortness of breath, coughing, wheezing, chest pain or tightness
Heart - weak pulse, passing out, shock
Gastrointestinal tract - vomiting, diarrhea, cramps
Nervous system - dizziness or fainting

If someone is having a serious allergic reaction, call 9-1-1. If an auto-injector is available, give the person the injection right away.

NIH: National Institute of Allergy and Infectious Diseases

Resources

Anaphylaxis Available in Spanish
Anaphylaxis (American Academy of Allergy, Asthma, and Immunology)
Anaphylaxis (National Institute of Allergy and Infectious Diseases)
Anaphylaxis (Severe Allergic Reaction): First Aid (Mayo Foundation for Medical Education and Research)
Anaphylaxis Quiz (American Academy of Allergy, Asthma, and Immunology)
Anaphylaxis-Like Reactions (National Jewish Health)
Serious Allergic Reactions (Anaphylaxis) (Nemours Foundation)Available in Spanish