Tolerability of meropenem in patients with IgE-mediated hypersensitivity to penicillins

Antonino Romano

Risultato della ricerca: Contributo in rivistaArticolo in rivista

104 Citazioni (Scopus)


Background: Although clinicians avoid giving meropenem to patients with penicillin allergy because of potential cross-reactivity, the rate of cross-reactivity between penicillins and meropenem has not been prospectively determined. Objective: To assess the tolerability of meropenem in patients with documented penicillin allergy. Design: Prospective skin testing and antibiotic challenge. Setting: Allergy units of 2 Italian medical centers. Patients: 104 consecutive participants with immediate hypersensitivity reactions to penicillins and positive skin test results to at least 1 penicillin reagent. Measurements: Skin tests to meropenem and, if results were negative, challenges with escalating dosages of meropenem. Results: One participant (0.9% [95% CI, 0.02% to 5.2%]) had a positive intradermal test result to meropenem. The remaining 103 participants with negative skin test results to meropenem tolerated escalating dosage challenges. Limitation: Challenges were not followed by therapeutic courses. Conclusions: These data indicate a low rate of cross-reactivity between penicillins and meropenem. Therefore, the practice of avoiding meropenem therapy in penicillin-allergic patients should be reconsidered. In patients who especially require meropenem treatment, the authors recommend pretreatment skin tests because negative results indicate tolerability.
Lingua originaleEnglish
pagine (da-a)266-269
Numero di pagine4
RivistaAnnals of Internal Medicine
Stato di pubblicazionePubblicato - 2007


  • IgE-mediated hypersensitivity
  • meropenem
  • penicillins
  • tolerability


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