title: Pharmacokinetics of pipecurium bromide, a new non-depolarizing neuromuscular blocking agent, in humans.
abstract: The pharmacokinetics of 2 beta, 16 beta-bis-(4'-dimethyl-1'-piperazino)-3 alpha, 17 beta-diacetoxy-5 alpha-androstane dibromide (pipecurium bromide, Arduan), a new non-depolarizing neuromuscular blocking agent, was studied in surgical patients. Plasma concentration-time curves of pipecurium bromide were evaluated by fitting the data to a bi-exponential equation. The average half-lives were T 1/2 alpha = 4.1 +/- 1.4 (n = 8) and T 1/2 beta = 44 +/- 7 (n = 8) min. The pharmacokinetic parameters of pipecurium bromide were found as follows: apparent distribution volume V beta = 261 +/- 28 (n = 8) ml/kg, plasma clearance Cl = 320 +/- 55 (n = 8) ml/min. The microconstants of two-compartment open models were also calculated.
mesh_terms: D000328:Adult; D000368:Aged; D015113:Androstane-3,17-diol / Q000031:analogs & derivatives / Q000378:metabolism*; D000732:Androstanols / Q000378:metabolism*; D005260:Female; D006801:Humans; D007700:Kinetics; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D003473:Neuromuscular Nondepolarizing Agents / Q000378:metabolism*; D017300:Pipecuronium; D010879:Piperazines / Q000378:metabolism*
chemical_list: D000732:Androstanols; D003473:Neuromuscular Nondepolarizing Agents; D010879:Piperazines; D017300:Pipecuronium; D015113:Androstane-3,17-diol