PREVIOUS QUESTION:

 

NEXT QUESTION:

 

When do symptoms start when you have a drug allergy?

ANSWER

Symptoms can start right away or weeks later. You may start to feel things within minutes -- or even seconds -- of taking a drug. Others times, it may take days or weeks. That can make it harder for you and your doctor to figure out what caused the problem. Symptoms can be mild or severe. Drug allergies are most likely to affect your skin, causing rash or hives. They can also affect your nose, airways, ears, or lining of your stomach. For some people, they may be life-threatening.

From: Facts About Drug Allergies WebMD Medical Reference

SOURCES:

American Academy of Allergy, Asthma, and Immunology: "Medications and Drug Allergic Reactions: Tips to Remember."

American College of Allergy, Asthma & Immunology: "Drug Reactions and Drug Allergies."

Levy, JH. , American Society of Anesthesiologists,  2005. Anaphylaxis and Adverse Drug Reactions

UpToDate: "An approach to the patient with drug allergy," "Rapid drug desensitization for immediate hypersensitivity reactions," "Drug Allergy: Classification and Clinical Features."

American Academy of Allergy Asthma and Immunology: “Drug Allergy Overview.”

Reviewed by Nayana Ambardekar on April 14, 2018

SOURCES:

American Academy of Allergy, Asthma, and Immunology: "Medications and Drug Allergic Reactions: Tips to Remember."

American College of Allergy, Asthma & Immunology: "Drug Reactions and Drug Allergies."

Levy, JH. , American Society of Anesthesiologists,  2005. Anaphylaxis and Adverse Drug Reactions

UpToDate: "An approach to the patient with drug allergy," "Rapid drug desensitization for immediate hypersensitivity reactions," "Drug Allergy: Classification and Clinical Features."

American Academy of Allergy Asthma and Immunology: “Drug Allergy Overview.”

Reviewed by Nayana Ambardekar on April 14, 2018

NEXT QUESTION:

What's the difference between a drug allergy and a drug side effect?

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: