国产甲磺酸帕珠沙星注射液健康志愿者多剂连续给药药动学研究

目的:研究国产甲磺酸帕珠沙星注射液多次连续给药在健康人体内的药动学特点.方法:12例健康志愿者静滴甲磺酸帕珠沙星注射液500 mg,bid,连续5 d,并采用反相高效液相色谱法测定血药浓度数据,用DAS软件计算主要药动学参数.结果:静滴甲磺酸帕珠沙星药动学特点符合开放二室模型,第1次单次给药和最后1次给药的主要药动学参数如下:平均峰浓度分别为(10.86±2.04)和(11.72±1.82)mg·L-1,平均稳态药一时曲线下面积AUC0～∞分别为(18.29±2.36)和(19.22±2.80)mg·h·L-1,t1/2β分别为(1.64±0.27)和(1.82±0.34)h.结论:连续给药帕珠沙星5 d,受试者耐受良好,药动学过程符合二室模型,多次给药体内无蓄积.

Pharmacokinetics of multiple-dose of pazufloxacin mesilate injection in Chinese healthy volunteers

Objective: To study the pharmacokinetics of single-and multiple-dose of pazufloxacin mesilate injection in Chinese healthy volunteers.Methods: Twelve healthy volunteers were enrolled to receive single-and multiple-dose of pazufloxacin mesilate injection twice daily for 5 days in an open randomized study.The plasma concentrations of pazufloxacin were determined by reverse phase high-pressure liquid chromatograph(RP-HPLC) method.Results: Pharmacokinetic profile conformed to an open two-compartment model as an...