[Studies on panipenem/betamipron in the pediatric field].
Pharmacokinetic and clinical evaluations of panipenem/betamipron (PAPM/BP) were carried out in pediatric patients. The following results were obtained: 1. Upon 30-minute intravenous drip infusion at a dose of 20 mg/kg, plasma concentrations of PAPM/BP reached their peaks at the end of drip infusion with average values of 62.94/47.32 micrograms/ml, and their plasma half-lives were 1.00/0.51 hour in the beta-phase. Upon 30-minute intravenous drip infusion at a dose of 10 mg/kg, peak plasma concentrations were 32.10/23.76 micrograms/ml and plasma half-lives were 0.93/0.59 hour. 2. The urinary excretion rates of PAPM/BP after 30-minute intravenous infusion at doses of 20 and 10 mg/kg were 25.09/81.04% and 32.14/84.66%, respectively. 3. PAPM/BP was administered to 18 cases (upper and lower respiratory tract infections, pneumonia and urinary tract infections) at daily doses of 30-88.9 mg/kg/day divided into 3 dosages using 30-minute intravenous drip infusion. Clinical responses were "excellent" in 12 patients, "good" in 5, and "poor" in 1, hence an efficacy rate of 94.4% was obtained. 4. Bacteria identified from various diseases involved 11 strains of 6 species, and the eradication rate was 90.9%. 5. No side effect was recognized in any patient. Laboratory test results showed abnormalities in including 1 case with leukopenia, and in 2 cases with elevation of GOT and GPT.
Niinou
K
K
Department of Pediatrics, Oguchi Higashi General Hospital.
Sato
H
H
Nakazawa
S
S
D001424:Bacterial Infections / Q000188:drug therapy*; D002648:Child; D002675:Child, Preschool; D004359:Drug Therapy, Combination / Q000097:blood / Q000493:pharmacokinetics / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007262:Infusions, Intravenous; D008297:Male; D011014:Pneumonia / Q000188:drug therapy*; D012141:Respiratory Tract Infections / Q000188:drug therapy*; D013845:Thienamycins / Q000097:blood / Q000493:pharmacokinetics* / Q000627:therapeutic use*; D014552:Urinary Tract Infections / Q000188:drug therapy*; D015091:beta-Alanine / Q000031:analogs & derivatives* / Q000097:blood / Q000493:pharmacokinetics / Q000627:therapeutic use
D013845:Thienamycins; D015091:beta-Alanine; C075316:panipenem-betamipron