title: The disposition kinetics, urinary excretion and dosage regimen of ciprofloxacin in buffalo calves (Bubalus bubalis).
abstract: The disposition kinetics, urinary excretion and a dosage regimen for ciprofloxacin after a single intravenous administration of 5 mg/kg was investigated in 5 healthy buffalo calves. The disposition kinetics were best fitted to a three-compartment open model. After 1 min, the concentration of ciprofloxacin in plasma was 8.50 +/- 0.39 microg/ml and the minimum therapeutic concentration was maintained for 10 h. The elimination half-life and volume of distribution were 3.88 and 0.08 h and 3.97 +/- 0.22 L/kg, respectively. The total body clearance and T/P ratio were 0.709 +/- 0.025 L/kg per h and 6.13 +/- 0.54, respectively. Approximately 28.3% of the total administered dose of ciprofloxacin was recovered in urine within 24 h of administration. To maintain a minimum therapeutic plasma concentration of 0.10 microg/ml, a satisfactory intravenous dosage regimen of ciprofloxacin, computed on the basis of disposition kinetic data obtained in healthy buffalo calves, would be 3 mg/kg repeated at 12 h intervals.
authors.affiliation: Department of Veterinary Pharmacology and Toxicology, Punjab Agricultural University, Ludhiana, India. sainisps@hotmail.com
authors.forename: S P
authors.initials: SP
authors.lastname: Saini
authors.forename: A K
authors.initials: AK
authors.lastname: Srivastava
mesh_terms: D000818:Animals; D000890:Anti-Infective Agents / Q000097:blood / Q000493:pharmacokinetics* / Q000652:urine; D019540:Area Under Curve; D002020:Buffaloes / Q000097:blood / Q000378:metabolism* / Q000652:urine; D002939:Ciprofloxacin / Q000097:blood / Q000493:pharmacokinetics* / Q000652:urine; D006207:Half-Life; D007275:Injections, Intravenous / Q000662:veterinary; D008297:Male
chemical_list: D000890:Anti-Infective Agents; D002939:Ciprofloxacin