title: Pharmacokinetics of fazadinium in patients with renal failure.
abstract: The serum concentrations of fazadinium and its metabolites were measured in 14 surgical patients with end-stage renal failure and in 11 patients free from kidney disease undergoing abdominal surgery. A two-compartment open model was used in the pharmacokinetic analysis of the data. The elimination half-life (T 1/2 beta) was prolonged by 60% in patients with renal failure (from 85 to 140 min) and corresponded to a 30% decrease of the plasma clearance. The plasma concentration of the metabolites never exceeded 7% of the unchanged fazadinium. These results suggest that the duration of action will be less prolonged for fazadinium than for other non-depolarizing neuromuscular blocking drugs in patients with renal failure. A supplementary biliary pathway appears to be a possible explanation for the rapid elimination of fazadinium, even in patients with renal failure.
mesh_terms: D000328:Adult; D005260:Female; D006207:Half-Life; D006801:Humans; D007676:Kidney Failure, Chronic / Q000378:metabolism* / Q000601:surgery; D007700:Kinetics; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D011726:Pyridinium Compounds / Q000097:blood / Q000378:metabolism*; D013514:Surgical Procedures, Operative
chemical_list: D011726:Pyridinium Compounds