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Related Experiment Videos

Anaphylactic shock induced by paracetamol.

L Van Diem1, J P Grilliat

  • 1Department D of Internal Medicine and Allergy, University Hospital of Brabois, Vandoeuvre-les-Nancy, France.

European Journal of Clinical Pharmacology
|January 1, 1990
PubMed
Summary
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Adverse reactions to paracetamol in a 46-year-old woman were dose-dependent, causing severe symptoms. Histamine levels increased, indicating an allergic response to the common pain reliever.

Area of Science:

  • Pharmacology
  • Clinical Medicine
  • Allergy and Immunology

Background:

  • Paracetamol (acetaminophen) is a widely used analgesic and antipyretic.
  • Adverse drug reactions can range from mild to severe, impacting patient safety.
  • Understanding the mechanisms of drug-induced hypersensitivity is crucial for clinical practice.

Observation:

  • A 46-year-old female patient experienced adverse reactions following paracetamol administration.
  • Oral challenge tests confirmed a dose-dependent relationship between paracetamol intake and symptom manifestation.
  • Symptoms included vomiting, diarrhea, pruritus, skin rashes, facial edema, dyspnea, and hypotension.

Findings:

  • The patient exhibited a marked increase in blood histamine levels.

Related Experiment Videos

  • Complement components C3 and C4 remained within normal ranges during the reaction.
  • These findings suggest a histamine-mediated hypersensitivity reaction to paracetamol.
  • Implications:

    • This case highlights the potential for severe, dose-dependent hypersensitivity reactions to paracetamol.
    • Prompt recognition and management with epinephrine and corticosteroids are effective.
    • Further investigation into the immunological mechanisms of paracetamol hypersensitivity may be warranted.