[Clinical experience with cefuzonam in bacterial infection of children].

Clinical studies were performed on cefuzonam (L-105, CZON), a new cephem antibiotic, as follows. Cerebrospinal fluid (CSF) and serum concentrations. CSF and serum concentrations of CZON were measured in 1 case of septic arthritis without meningitis. One hour after 50 mg/kg intravenous bolus injection, the CSF and serum concentrations were 0.10 and 18.1 micrograms/ml, respectively, and CSF to serum concentration ratio was 0.55%. Clinical efficacy CZON was administered to 15 patients in doses ranging 54.5 approximately 212.4 mg/kg/day (94.1 mg/kg/day on average) t.i.d. or q.i.d. for 4 approximately 12 days (6.5 days on average). Of those patients, 9 were with pneumonia, one each was with bronchitis, with tonsillitis, with septic arthritis, with septicemia, with purulent meningitis and with urinary tract infection. The overall efficacy rate was 100%, i.e., efficacy was excellent in 12, good in 3. Bacteriological efficacy was excellent, i.e., 8 of 8 strains were eradicated. Side effects were observed in 2 cases, i.e., one case with loose stool and another with eruption. Laboratory abnormalities to the drug were not observed during the treatment. The above results suggested that CZON would be a useful antibiotic for treating pediatric bacterial infections.