[Neutropenia from oxacillin. 3 pediatric cases]

Neutropenia developed in 3 pediatrics patients during treatment with oxacillin. The time of onset ranged from 18 to 24 days after beginning treatment with dose of 150 mg/kg/24 h. Concomitant symptoms were fever and rashes. During treatment with oxacillin it is necessary to monitor blood cell count every week.