title: Pharmacokinetics and dosage regimen of ceftriaxone in buffalo calves.
abstract: The pharmacokinetics and dosage regimen of ceftriaxone were investigated in buffalo calves (n = 6) following a single intravenous administration of ceftriaxone (10 mg/kg). The elimination rate constant was 0.18 +/- 0.01 h(-1) and the elimination half-life was 3.79 +/- 0.09 h. The apparent volume of distribution (Vd(area)) was 1.40 +/- 0.01 L/kg and the total plasma clearance was 0.26 +/- 0.01 L/(kg h). Approximately 43% of total administered dose of ceftriaxone was excreted in urine within 8 h. To maintain a minimum therapeutic concentration of 1 microg/ml, a satisfactory intravenous dosage regimen of ceftriaxone in buffalo calves is 13 mg/kg repeated at 12 h intervals.
authors.affiliation: Department of Pharmacology and Toxicology, College of Veterinary Sciences, Punjab Agricultural University, Ludhiana 141 004, India.
authors.forename: M S
authors.initials: MS
authors.lastname: Dardi
authors.forename: S K
authors.initials: SK
authors.lastname: Sharma
authors.forename: A K
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 / Q000378:metabolism*; D002443:Ceftriaxone / Q000008:administration & dosage / Q000097:blood / Q000493:pharmacokinetics* / Q000652:urine; D004334:Drug Administration Schedule; D006207:Half-Life; D008657:Metabolic Clearance Rate
chemical_list: D000900:Anti-Bacterial Agents; D002443:Ceftriaxone