摘要
摘要:目的研究盐酸关普他酚注射液在健康志愿者体内的药动学。方法采用随机开放、二重3X3拉丁方试验设计,12名健康志愿者(男女各半),分别单剂量肌内注射50、100或150mg三种剂量的盐酸美普他酚注射液后,采用HPLC—MS/MS法测定血浆中美普他酚浓度,计算药动学参数。结果盐酸美普他酚注射剂5(1、100或150mg三个剂量组的AUC0-t分别为(416.1±76.43),(934.9±180.8)和(1515±343.37)μg/(h·L);AuC0-∞分别为(431±79.76),(960.1±192.8)和(1552±351.1)μg/(h·L);Cmax分别为(163.3±53.96),353.9±83.28)和(519.4±117.4)LLg/L;tmax分别为(0.59±058),(0.36±0.12)和(0.56±0.39)h;t1/2分别为(2.41±0.54),(2.17±0.35)和(2.12±0.24)h。结论单次肌内注射50-150mg剂量范围内的盐酸美普他酚注射液后,关普他酚的体内过程符合1级速率线性动力学过程。,
[ Objective ] To evaluate the pharmacokinetics of meptazinol hydrochloride injection in Chinese healthy volunteers. [Methods] 12 healthy volunteers were received a single dose of 50, 100 or 150 mg meptazinol hy- drochloride intramuscularly. Concentrations of meptazinol in plasma were determined by HPLC-MS/MS. [ Results ] The main pharmacokinetic parameters of three groups were as follows: AUC0-t were (416.1_±76.43), (934.9±180.8) and (1 515±343.37) μg/(h'L); AUCO-∞ were (431±79.76), (960.1±192.8) and (1 552±351.1)pog/(h'L); Cmax were (163.3±53.96), (353.9±83.28) and (519.4±117.4)μg/L; tmax were (0.59±0.58), (0.36±0.12) and (0.56±0.39)h; tl/2 were (2.41±0.54), (2.17±0.35) and (2.12±0.24)h, respectively. [Conclusion] The plasma concentrations of meptazi- nol in Chinese healthy volunteers were proceeded in an apparently mono-exponential fashion after a single dose of 50, 100 or 150 mg meptazinol hydrochloride intramuscularly.
出处
《中国现代医学杂志》
CAS
CSCD
北大核心
2013年第28期38-41,共4页
China Journal of Modern Medicine