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Fever from caffeine

P Daroca1, J Rodriguez, M Reaño

  • 1Allergology Service, Hospital 12 de Octubre, Madrid, Spain.

Allergy
|March 1, 1996
PubMed
Summary
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Caffeine and theophylline can trigger fever and flu-like symptoms in sensitive individuals. This case highlights potential cross-reactivity, emphasizing the need for careful diagnosis of drug-induced fever.

Area of Science:

  • Pharmacology
  • Clinical Medicine
  • Immunology

Background:

  • Adverse reactions to common substances like coffee and tea can manifest with flu-like symptoms.
  • Identifying the specific triggers for such reactions is crucial for patient management.

Observation:

  • A 53-year-old woman experienced recurrent fever, chills, myalgia, and cephalea after consuming caffeine-containing products.
  • Standard skin prick tests for suspected allergens were negative.

Findings:

  • Oral challenges confirmed caffeine as the trigger for her symptoms.
  • Cross-reactivity was demonstrated with theophylline, another methylxanthine.
  • Pentoxifylline, a related compound, did not elicit a reaction.

Implications:

Related Experiment Videos

  • This case suggests a specific sensitivity to caffeine and theophylline, leading to drug-induced fever.
  • Understanding methylxanthine cross-reactivity is important for diagnosing similar adverse drug reactions.
  • Further research into the mechanisms of caffeine-induced fever is warranted.