Ropivacaine is a new long-acting amide local anesthetic which is possibly less cardiotoxic than bupivacaine. The absorption and disposition of ropivacaine were characterized in six rhesus monkeys in an open two-way crossover study following intravenous and epidural administration. For these studies,
A comparison of intravenous and subarachnoid lidocaine pharmacokinetics in the rhesus monkey
β Scribed by Donald D. Denson; Wolfgang A. Ritschel; Patricia A. Turner; David F. Ohlweiler; Phillip O. Bridenbaugh
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 501 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0142-2782
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β¦ Synopsis
Abstract
A comparative study between intravenous and subarachnoid lidocaine in the rhesus monkey was conducted in an effort to compare the kinetics of lidocaine in the monkey with reported intravenous human data, and to determine the rate and extent of systemic absorption of lidocaine following subarachnoid injection. Each animal received an intravenous and subarachnoid treatment in an effort to determine the fraction of drug absorbed. Pharmacokinetic parameters were calculated for each animal based on arterial blood concentrations of lidocaine. In the case of the intravenous data, a standard twoβ compartment model was used. Subarachnoid injections were evaluated by fitting data to an extravascular oneβcompartment model and by analog computer fitting of the blood level data to an extravascular twoβcompartment model. Data for both intravenous and subarachnoid injection were also analysed independent of compartment model.
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