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Abstract
Multiple Drug Allergy Syndrome (MDAS) is a frequent clinical condition characterized by reactions to more than one different class of antibiotics. Even if some studies have previously reported an increased rate of allergic reactions to drugs in patients with a history of antimicrobials and NSAIDs allergy, risk factors and pathogenesis of MDAS are still object of investigation.
Moreover, in these subjects it is often difficult to prescribe a safe alternative antibiotic without a tolerance test. In this study we carried out 504 tests in 460 patients with a history of immediate adverse reactions to antibiotics. From the analysis of our results it emerges that risk factors for MDAS are female sex and intolerance to NSAIDs. Risk factors for positive tolerance test are male sex, intolerance to NSAIDs and a history of MDAS, respectively.
In conclusion, it seems that tolerance test may represent a valid approach to detect a safe antibiotic in these patients.