• M Bai, V Govindaraj, R Kottaisamy, and N Vijayarangam.
• Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India.
• J Postgrad Med. 2022 Apr 1; 68 (2): 102-105.

AbstractDrug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a severe, idiosyncratic reaction to a drug which presents after a prolonged latency period. Although it most commonly occurs with aromatic anticonvulsants, antibiotics are also occasionally implicated. A 50-year-old male was admitted for left pyopneumothorax. He was started on intravenous piperacillin-tazobactam (Pip/Taz) and clindamycin. After 10 days of treatment, he developed high grade fever with maculopapular rashes with areas of scaling. He had elevated WBC counts with eosinophils of 21% and raised serum transaminases. After excluding other possible etiologies for febrile illness, a possibility of DRESS was considered. Naranjo scale, used for causality assessment, yielded a total score of 6, pointing toward probable adverse drug reaction. Also, the patient had 6 out of the 7 inclusion criteria for DRESS as per European Registry of Severe Cutaneous Adverse Reaction (RegiScar) scoring. Pip/Taz was found to be causative drug and was discontinued. He was conservatively managed with antipyretics and topical steroids. Fever subsided the day after stopping Pip/Taz and his rashes resolved gradually. In conclusion the possibility of antibiotics-induced DRESS should be considered and high index of vigilance is advised.

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