Treatment of bacterial meningitis with once daily ceftriaxone therapy

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Abstract
Ceftriaxone, a cephalosporin with an extended half-life and excellent antibacterial activity was used to treat bacterial meningitis, given as a single daily intravenous dose of 100 mg/kg on day one, followed by 80 mg/kg daily. A total of 22 patients were treated, of whom 14 had Haemophilia inftuenzae type b, five had Streptococcus pimanoniae and three Neisseria meningitidis isolated from their CSF. The CSF of all patients became sterile within 24–48 h. The CSF ceftriaxone concentrations 24 h after dosing were 10 to 100-fold higher than the MIC of the pathogenic bacteria early in therapy, and five to 50-fold higher at the end of therapy. Side effects encountered included mild diarrhoea (32%), thrombocytosis (77%) and neutropenia (9%), but none caused therapy to be stopped. Ceftriaxone is a safe and effective antibiotic for the treatment of bacterial meningitis when administered once daily.

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