Pharmacokinetics of ropivacaine mesylate and ropivacaine hydrochloride in dogs
- VernacularTitle:甲磺酸罗哌卡因与盐酸罗哌卡因的生物等效性分析
- Author:
Xiaohua XIAO
- Publication Type:Journal Article
- Keywords:
ropivacaine;
pharmacokinetics;
bioavailability
- From:Journal of Third Military Medical University
2003;0(19):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the bioequivalence of domestic ropivacaine mesylate in compared with imported ropivacaine hydrochloride in Beagle dogs.Methods Ropivacaine mesylate and ropivacaine hydrochloride at a dose of 10 ?mol/kg was administered intravenously in a randomized cross-over test.The plasma level of ropivacaine was measured by high performance liquid chromatography(HPLC).The pharmacokinetic parameters of ropivacaine were determined by the soft pack of Practical Pharmacokinetic Program Version 97(3P97).Results The pharmacokinetic parameters of ropivacaine mesylate were T_(1/2?)(3.83?1.89) min,T_(1/2?)(41.08?4.47) min,AUC_(0-200)(148.67?87.51) ?g?ml~(-1)?min~(-1),C_(max)(3.96?1.50) ?g/ml,CL(s)(0.030?0.014) L?kg~(-1)?min~(-1),and these parameters of ropivacaine hydrochloride were(3.09?1.19) min,(38.43?4.41)min,(125.80?81.06) ?g?ml~(-1)?min~(-1),(3.72?1.31) ?g/ml,(0.030?0.013) L?kg~(-1)?min~(-1) respectively.Conclusion The bioavailability of ropivacaine mesylate is equal to that of ropivacaine hydrochloride.
