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What are symptoms of drug allergy?

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You may have some or all of these symptoms:

Rash

Most drug allergy symptoms start right after you take the drug, but some may take hours, days or weeks to appear.

  • Hives -- itchy, bumpy, irregular patches on the skin
  • Itchy skin
  • Swollen face, lips, or tongue
  • Wheezing

From: Symptoms of a Drug Allergy WebMD Medical Reference

SOURCES:

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

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

UpToDate: "An approach to the patient with drug allergy," "Drug Allergy: Classification and Clinical Features."

Reviewed by Jennifer Robinson on October 17, 2017

SOURCES:

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

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

UpToDate: "An approach to the patient with drug allergy," "Drug Allergy: Classification and Clinical Features."

Reviewed by Jennifer Robinson on October 17, 2017

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What are symptoms of anaphylaxis?

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