目的:测定奈替米星(netilmicin,NET)在10名烧伤患者体内药代动力学参数、渗出液药物浓度和尿药浓度。方法:采用荧光偏振免疫法测定一次静滴6mg·kg^-1奈替米星注射剂后不同时间的血、尿、烧伤渗出液中药物浓度,用3P97计算药代动力学参数。结果:烧伤患者静滴6mg·kg^-1NET后t_1/2为(240±109.98)min;Cls为(0.0973±0.0198)mg·min^-1·μg^-1·ml^-1;用药8h后血浓度为(1.56±0.66)μg·ml^-1;12h尿排出率(73.36±10.04)%;24h尿排出率(83.39±9.46)%。结论:奈替米星(6mg·kg^-1)用于烧伤患者可有效控制烧伤后感染,但体内药代动力学差异较大,应进行药物浓度监测。

OBJECTIVE:To determine the pharmacokinetic parameters and concentrations of netilmicin in the blood,exudate and urine in 10patients with burns.METHOD:The pharmacokinetic parameters and concentrations of Netilmicin in the blood,urine and exudate were determined by FPIA.Netilmicin was given at a single-dose of 6mg·kg^-1 by intravenous infusion.RESULTS:The main pharmacokinetic parameters weret_1/2=(240.28±109.98) mins,Cls=(0.0973±0.0198)mg·min^-1·μg^-1·ml^-1.The mean blood concentration was (1.56±0.66)μg·ml^-1 at 8h after administration.The elimination rates of netilmicin in urine were (73.36±10.04)% and (83.39±9.46)% after 12 h and 24 h respectively. CONCLUSION:Netilmicin(6mg·kg^-1)can contre the burn infetion,but the pharmacokinetic parameters are varied in different individuals,the blood concentration must be monitored.