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Who's more likely to get a penicillin allergy?

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Anyone could be allergic to this type of antibiotic, but you might be more likely to if you have:

If you’ve had to take penicillin often, for a long time or in high doses, you may also be more likely to have a bad reaction.

  • Allergies to other drugs
  • HIV
  • Epstein-Barr, a type of herpes virus
  • Family members who can’t take penicillin
  • Other allergies, such as hay fever

From: What Is Penicillin Allergy? WebMD Medical Reference

SOURCES:

UpToDate: “Patient information: Allergy to penicillin and related antibiotics (Beyond the Basics).”

American College of Allergy, Asthma & Immunology: “Drug Allergy.”

Mayo Clinic: “Penicillin Allergy.”

American Academy of Allergy, Asthma & Immunology: “Penicillin Allergy FAQ.”

CDC: “Management of Persons Who Have a History of Penicillin Allergy.”

U.S. Department of Veteran Affairs: “Penicillin Skin Testing: Frequently Asked Questions.”

Reviewed by Laura J. Martin on July 09, 2018

SOURCES:

UpToDate: “Patient information: Allergy to penicillin and related antibiotics (Beyond the Basics).”

American College of Allergy, Asthma & Immunology: “Drug Allergy.”

Mayo Clinic: “Penicillin Allergy.”

American Academy of Allergy, Asthma & Immunology: “Penicillin Allergy FAQ.”

CDC: “Management of Persons Who Have a History of Penicillin Allergy.”

U.S. Department of Veteran Affairs: “Penicillin Skin Testing: Frequently Asked Questions.”

Reviewed by Laura J. Martin on July 09, 2018

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What are the immediate symptoms of penicillin allergy?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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