Prevalence of cross-sensitivity with acetaminophen in aspirin-sensitive asthmatic subjects
- PMID: 7560658
- DOI: 10.1016/s0091-6749(95)70290-3
Prevalence of cross-sensitivity with acetaminophen in aspirin-sensitive asthmatic subjects
Abstract
Objective: Cross-sensitivity between aspirin and acetaminophen in aspirin-sensitive asthmatic patients has been reported with frequencies ranging from 0% to 29%. The relationship is dose-dependent for acetaminophen challenges, ranging between 300 and 100 mg.
Methods: To determine the prevalence of cross-sensitivity to high-dose acetaminophen, we performed single-blind acetaminophen oral challenges with 1000 mg and 1500 mg in 50 aspirin-sensitive asthmatic patients and in 20 non-aspirin-sensitive asthmatic control subjects.
Results: Overall, 17 of 50 (34%) of aspirin-sensitive asthmatic patients reacted to acetaminophen in doses of 1000 to 1500 mg (95% confidence interval: 20% to 49%). By contrast, none of the 20 non-aspirin-sensitive asthmatic patients reacted to acetaminophen (95% confidence interval: 0% to 14%). This difference was highly significant (p = 0.0013), supporting the hypothesis that cross-sensitivity between aspirin and acetaminophen is unique in aspirin-sensitive asthmatic patients.
Conclusion: Although high-dose ( > 1000 mg) acetaminophen cross-reactions with aspirin were significant with respect to frequency (34%), such reactions included easily reversed bronchospasm in only 22%, and were generally mild. We recommended that high doses of acetaminophen (1000 mg or greater) should be avoided in aspirin-sensitive asthmatic patients.
Comment in
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Prevalence of cross-sensitivity with acetaminophen and other nonsteroidal antiinflammatory drugs in asthmatic patients.J Allergy Clin Immunol. 1996 Sep;98(3):713-4. doi: 10.1016/s0091-6749(96)70109-4. J Allergy Clin Immunol. 1996. PMID: 8828553 No abstract available.
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