PREVIOUS QUESTION:

 

NEXT QUESTION:

 

What happens during a challenge test for penicillin allergy?

ANSWER

Your doctor will start you with a small dose. If you don’t have a reaction after 30 to 60 minutes, you’ll take a higher dose. You will work your way higher every 30 to 60 minutes until you take a full dose. It usually takes four to five doses.

If you don’t have symptoms after the full dose, you don’t have the allergy.

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 9, 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 9, 2018

NEXT QUESTION:

How is penicillin allergy treated?

WAS THIS ANSWER HELPFUL

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.

    This tool does not provide medical advice. See additional information.

    Other Answers On: