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Drug-induced urticaria.

Eunice K H Tan1, Clive E H Grattan

  • 1Department of Dermatology, Norfolk and Norwich University Hospital, Colney Lane, Norwich, Norfolk, NR4 7UY, UK. eunicetan@doctors.org.uk

Expert Opinion on Drug Safety
|September 1, 2004
PubMed
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Drug-induced urticaria and angio-oedema are linked to various medications, including NSAIDs and antibiotics. Further research is needed to establish the safety of certain drug classes in susceptible patients.

Area of Science:

  • Dermatology
  • Pharmacology
  • Allergy and Immunology

Background:

  • Urticaria presents as transient skin swelling, while angio-oedema involves deeper tissues.
  • Drug-induced urticaria is a known adverse reaction to numerous medications and vaccines.
  • Non-steroidal anti-inflammatory drugs (NSAIDs) and antibiotics are frequently implicated, though robust data is limited.

Purpose of the Study:

  • To review the range of drugs associated with drug-induced urticaria and angio-oedema.
  • To highlight emerging evidence regarding medication safety in specific patient populations.
  • To identify gaps in current knowledge regarding drug-induced hypersensitivity reactions.

Main Methods:

  • Analysis of spontaneous adverse event reports to the UK Committee on Safety of Medicines over 40 years.

Related Experiment Videos

  • Review of existing literature on drug-induced urticaria and angio-oedema.
  • Examination of new evidence concerning selective COX-2 inhibitors and angiotensin II receptor antagonists.
  • Main Results:

    • Commonly implicated drugs include NSAIDs, antibiotics, bupropion, SSRIs, ACE inhibitors, antihistamines, and antifungals.
    • Selective COX-2 inhibitors may be a safer alternative for patients with aspirin-sensitive urticaria.
    • The safety profile of angiotensin II receptor antagonists in ACE inhibitor-induced angio-oedema remains undetermined.

    Conclusions:

    • A broad spectrum of medications can trigger urticaria and angio-oedema.
    • Careful consideration of drug history is crucial in managing these conditions.
    • Further controlled studies are necessary to clarify the safety of specific drug classes, particularly in patients with pre-existing hypersensitivity.