title: Pharmacokinetics of intramuscular ceforanide in infants, children, and adolescents.
abstract: We studied the pharmacokinetics of intramuscular ceforanide in 46 infants, children, and adolescents, ranging in age from 1 month to 17 years. After the subjects were given 20-mg doses of ceforanide per kg, the mean peak plasma concentration was 56.3 microgram/ml (range, 27.0 to 95.0), the mean 8-h level was 5.9 microgram/ml (range, 1.5 to 13.5), and the mean 12-h level was 1.5 microgram/ml (range, 0.2 to 4.2). Ceforanide half-life varied with the ages of the patients: in 1- to 2-year-old children, in half-life was significantly shorter (1.5 h) than in younger or older children. Plasma concentrations at 8 and 12 h after a dose were lowest in 1- to 2-year-old children. There was no relationship between the area under the curve, the volume of distribution, or the body clearance of ceforanide to the ages of the patients. Within 6 h of administration of the drug, a mean of 77.5% of a dose was excreted in urine, and at the end of 12 h, virtually all (93.9%) of the administered dose was recovered in urine samples. The administration of ceforanide every 12 h did not result in drug accumulation. A dose of 20 mg of ceforanide per kg every 12 h is recommended for most pediatric patients. Dosage recommendations for 1- to 2 year-old children are presented.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000378:metabolism*; D001424:Bacterial Infections / Q000378:metabolism; D002435:Cefamandole / Q000008:administration & dosage / Q000031:analogs & derivatives / Q000378:metabolism*; D002511:Cephalosporins / Q000378:metabolism*; D002648:Child; D002675:Child, Preschool; D004334:Drug Administration Schedule; D005260:Female; D006207:Half-Life; D006801:Humans; D007223:Infant; D007273:Injections, Intramuscular; D007700:Kinetics; D008297:Male
chemical_list: D000900:Anti-Bacterial Agents; D002511:Cephalosporins; D002435:Cefamandole; C012653:ceforanide