title: Pharmacokinetics and quantitative characterization of cefotiam excretion after intravenous administration to patients after cholecystectomy.
abstract: Six patients, aged 52 to 71 years, with T-tube drainage of the common bile duct and a urinary catheter after cholecystectomy, were studied in order to evaluate the urinary and biliary excretion and pharmacokinetics of cefotiam in the early postoperative period. Each patient received cefotiam 1 g i.v. as a bolus injection. Cefotiam in plasma, urine, and bile were determined by HPLC. A 2-compartment open model with elimination from the central compartment satisfactorily fitted the plasma levels of the drug. The renal clearance of cefotiam (CLR = 133 ml/min) was an order of magnitude greater than its biliary clearance (CLB = 11.8 ml/min). Glomerular filtration was the main mechanism for elimination of cefotiam. The values of CLR and CLB in relation to the total plasma clearance (CL = 138. ml/min) demonstrated the negligible role of metabolism in elimination of cefotiam in these patients.
authors.forename: D
authors.initials: D
authors.lastname: Terziivanov
authors.forename: Z
authors.initials: Z
authors.lastname: Gerova
authors.forename: V
authors.initials: V
authors.lastname: Vlahov
authors.forename: A
authors.initials: A
authors.lastname: Merdzhanov
authors.forename: D
authors.initials: D
authors.lastname: Damjanov
mesh_terms: D000368:Aged; D001646:Bile / Q000378:metabolism; D002439:Cefotaxime / Q000031:analogs & derivatives* / Q000097:blood / Q000378:metabolism / Q000652:urine; D015310:Cefotiam; D002763:Cholecystectomy; D005260:Female; D006801:Humans; D007700:Kinetics; D008297:Male; D008657:Metabolic Clearance Rate; D008875:Middle Aged; D008954:Models, Biological; D011182:Postoperative Care
chemical_list: D015310:Cefotiam; D002439:Cefotaxime