[Cefuzonam, a new cephem antibiotic in the field of pediatrics. Concentrations in serum and clinical efficacy].

: A new cephem antibiotic, cefuzonam (L-105, CZON) was studied for its concentrations in serum and clinical efficacy in the field of pediatrics. To examine the concentration of CZON in serum, 20 mg/kg of CZON was administered by intravenous drip infusion to a male patient of 6 years and 7 months. The half-life of the drug in serum was 0.97 hour after administration. CZON was administered to 7 cases of pediatric infections, and clinical result were "excellent" in 4, "good" in 1, "poor" in 2: the efficacy rate was 71.4% or 5 cases out of 7. As an adverse reaction, eruption was observed in 1 patient.