【摘要】 目的　以盐酸地尔硫 艹卓 普通片为参比制剂 ,研究盐酸地尔硫 艹卓 控释胶囊的药代动力学性质和相对生物利用度。方法　采用自身对照法 ,健康志愿受试者分别单剂量和多剂量口服盐酸地尔硫 艹卓 控释胶囊与普通片 ,采用反相高效液相色谱法测定地尔硫 艹卓 血药浓度变化情况 ,3P87药代动力学程序进行处理。结果　单剂量po 6 0mg盐酸地尔硫 艹卓 控释胶囊与普通片的AUC0→τ分别为 (6 37.5 6± 10 6 .18)h·μg·L- 1 和 (5 97.39± 117.6 0 )h·μg·L- 1 ,cmax 分别为 (5 9.5± 8.0 ) μg·L- 1 和 (99.7± 8.2 ) μg·L- 1 ,tmax分别为 (4 .5± 0 .5 )h和 (3.0± 0 .3)h ,t1 2 分别为 (5 .9± 1.1)h和 (5 .3± 0 .7)h ,相对生物利用度为 (10 6 .39± 12 .5 3) %。多剂量po盐酸地尔硫 艹卓 控释胶囊 (每次 6 0mg ,每日 2次 )与盐酸地尔硫 艹卓 普通片每次 30mg ,每日 3次达稳态后 ,AUC0→τ分别为 (6 2 0 .35± 73.75 )h·μg·L- 1 和 (30 3.90± 5 4.5 3)h·μg·L- 1 ,cssmax分别是 (79.0± 7.6 ) μg·L- 1 与 (73.3± 12 .6 ) μg·L- 1 ,cssmin分别是(33.1± 5 .5 ) μg·L- 1 与 (2 3.9± 5 .7) μg·L- 1 , css分别为 (5 1.7± 6 .2 ) μg·L- 1 和 (38.0± 6 .8) μg·L- 1 ,tmax分别为 (3.4±更多还原

【Abstract】 OBJECTIVE To study the pharmacokinetics and relative bioavailability of diltiazem hydrochloride controlled-release (DTZ-CR) capsule in healthy male volunteers.METHODS Diltiazem tablet was used as the refereace.A crossover self-control study of single and multiple dose was conducted on 12 healthy volunteers.Plasma concentrations were determined by HPLC.RESULTS The pharmacokinetic parameters after a single dose of 60 mg DTZ-CR capsule were: AUC 0→τ =(637.56±106.18) h·μg·L -1 , c max =(59.5±8.0) μg·L -1 , t max (4.5±0.5) h, t 1/2 =(5.9±1.1) h,respectively.The relative bioavailability was (106.39±12.53)%.The degree of fluctuation for steady state of multipledoses was (0.89±0.11) μg·L -1 ,which were significantly lower than that of the reference tablet.CONCLUSION The two formulations were of bioequivalence and DTZ-CR capsule had marked characteristics of controlled release.更多还原