Anaphylactic reaction due to paracetamol

Area of Science:

• Clinical Medicine
• Pharmacology
• Immunology

Background:

• Anaphylaxis is a severe, potentially life-threatening allergic reaction.
• Paracetamol (acetaminophen) is a widely used over-the-counter analgesic and antipyretic.
• Drug-induced anaphylaxis is a recognized clinical entity, though rare for paracetamol.

Observation:

• A 58-year-old woman experienced anaphylaxis two hours post-oral paracetamol administration.
• The patient received conservative management for the reaction.
• Favorable clinical response was observed following treatment.

Findings:

• This case report documents a rare instance of anaphylaxis attributed to paracetamol.
• The delayed onset of symptoms (2 hours) is noted.
• The patient had a history suggestive of sensitivity to non-narcotic analgesic drugs.

Implications:

• Healthcare providers should consider paracetamol-induced anaphylaxis in patients with compatible histories.
• Testing for paracetamol sensitivity under medical supervision is recommended for individuals with known allergies to other non-narcotic analgesics.
• Raising awareness of this rare adverse drug reaction is crucial for patient safety and clinical management.