title: Subcutaneous pharmacokinetics and dosage regimen of cefotaxime in buffalo calves (Bubalus bubalis).
abstract: The pharmacokinetics and dosage regimen of cefotaxime following its single subcutaneous administration (10 mg/kg) were investigated in buffalo calves. Plasma and urine samples were collected over 10 and 24 h post administration, respectively. Cefotaxime in plasma and urine was estimated by microbiological assay technique using E. coli as test organism. The pharmacokinetic profiles fitted one-compartment open model. The peak plasma levels of cefotaxime were 6.48 +/- 0.52 microgram/ml at 30 min and the drug was detected upto 10 h. The absorption half-life and elimination halflife were 0.173 +/- 0.033 h and 1.77 +/- 0.02 h, respectively. The apparent volume of distribution and total body clearance were 1.17 +/- 0.10 l/kg and 0.45 +/- 0.03 l/kg/h, respectively. The urinary excretion of cefotaxime in 24 h, was 5.36 +/- 1.19 percent of total administrated dose. A satisfactory subcutaneous dosage regimen for cefotaxime in buffalo calves would be 13 mg/kg repeated at 12 h intervals.
authors.affiliation: Department of Pharmacology and Toxicology, College of Veterinary Science, Punjab Agricultural University, Ludhiana-141 004, India. sureshpau2000@yahoo.com
authors.forename: Suresh Kumar
authors.initials: SK
authors.lastname: Sharma
authors.forename: Anil Kumar
authors.initials: AK
authors.lastname: Srivastava
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000008:administration & dosage* / Q000097:blood / Q000493:pharmacokinetics* / Q000652:urine; D019540:Area Under Curve; D002020:Buffaloes; D002439:Cefotaxime / Q000008:administration & dosage* / Q000097:blood / Q000493:pharmacokinetics* / Q000652:urine; D004334:Drug Administration Schedule; D006207:Half-Life; D008297:Male; D014018:Tissue Distribution
chemical_list: D000900:Anti-Bacterial Agents; D002439:Cefotaxime