were taken from this mixture at nine intervals for up to 128 min. Each sample was immediately acidified, stored at — 20 °C and subsequently transferred to Groningen for analysis. All samples revealed vecuronium without any of its breakdown products. Unlike the 3-hydroxy metabolite, neither of the two other metabolites of vecuronium (17-hydroxy and 3,17-dihydroxy vecuronium) have been detected p...

blocking agent chemically designated as the aminosteroid 2 ß, 16 ß dipiperidino-5α-androstane­ 3α, 17-ß diol diacetate dimethobromide. The structural formula is: PAVULON is supplied as a sterile, isotonic, nonpyrogenic solution for injection. Each mL contains 1 mg or 2 mg pancuronium bromide, 2 mg sodium acetate and 1% benzyl alcohol as preservative. The solution is adjusted to isotonicity with...

The potencies of atracurium, vecuronium and pancuronium were compared using bolus injections and continuous infusions. The sizes of the bolus injections were based on previously determined cumulative dose-response relationships. Dose requirements for 90% and 50% sustained blockade were estimated by use of continuous infusion, and the corresponding plasma concentrations were measured for vecuron...

The pharmacokinetics and time course of action of vecuronium in normal children and children receiving anticonvulsant drugs for prolonged periods were characterized. A bolus dose of vecuronium 0.15 mg kg(-1) was administered i.v. to 10 non-epileptic children and to 10 children on phenytoin and 10 children on carbamazepine, who were matched for age and weight. Plasma concentrations of vecuronium...

BACKGROUND Hypothermia prolongs the time course of action of nondepolarizing muscle relaxants. It is not known whether this prolongation is caused by a reduced rate of extrahepatic distribution or elimination, liver uptake, metabolic clearance, or biliary excretion. Therefore, the authors studied the effects of hypothermia on the net hepatic uptake, metabolism, and biliary excretion of vecuroni...

Rocuronium and vecuronium, two non-depolarizing neuromuscular blockers, have been widely used in surgery procedures. However, their electrophysiological properties need to be more widely explored. We examined the effects of rocuronium and vecuronium on initial rundown of endplate potential amplitudes in the non-uniform stretched muscle preparation of the rat isolated phrenic nerve diaphragm. Mo...

Dose-duration relationships for vecuronium were determined and the duration of action produced by vecuronium 0.3 mg kg-1 shown to equal that of pancuronium 0.1 mg kg-1. Using these doses, the neuromuscular blocking properties and cardiovascular effects of the two drugs were compared. With large dose administration of vecuronium (0.3 mg kg-1), both the onset time (mean 81 s) and the 25-75% recov...

Several studies report flow disturbance and microcirculation disorders upon anesthesia treatment. These alterations are often related to blood rheology changes. In this work, it was attempted make a detailed description of the in erythrocyte mechanical properties by action propofol, remifentanil, vecuronium. For this, an vitro study performed on red cell samples from healthy donors incubated wi...