Pronounced: ANNA-fill-AX-isEn Español (Spanish Version)
Anaphylaxis is a severe, sometimes life-threatening, allergic reaction. It affects multiple organs, including the heart and lungs.
It is important to seek emergency medical care right away if you have symptoms of anaphylaxis.
Substances that cause anaphylaxis are often called allergens or triggers. Common triggers include:
- Foods and food additives, especially eggs, peanuts, seafood, cow's milk, soy, fish, shellfish, seeds, and tree nuts
- Insect stings or bites from bees, wasps, hornets, yellow jackets, and fire ants
- Medications such as antibiotics, seizure medications, and muscle relaxants
- Latex products such as gloves, medical tubing, and condoms
- Blood transfusions
- Some pain medications, especially narcotics
Allergic Reaction to Medication (Hives)
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Some triggers, like dyes used in x-ray procedures, can cause a reaction similar to anaphylaxis.
Last reviewedSeptember 2014by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.