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作 者:刘孟斯[1] 尹运涵[1] 李薇[1] 彭真珍[1] 高芳[1] 刘丽[1] 赵春杰[1]
出 处:《中南药学》2009年第10期745-749,共5页Central South Pharmacy
摘 要:目的采用反相高效液相色谱法测定阿莫西林-克拉维酸钾(8∶1)干混悬剂在健康志愿者体内的血药浓度,并研究其相对生物利用度。方法20名男性健康受试者采用双周期自身对照交叉试验,分别服用阿莫西林-克拉维酸钾(8∶1)干混悬剂和阿莫西林-克拉维酸钾(8∶1)片剂。采用RP-HPLC法分别测定血浆中克拉维酸钾和阿莫西林的浓度,使用DAS软件计算克拉维酸钾和阿莫西林的药物动力学参数与干混悬剂的相对生物利用度。结果阿莫西林和克拉维酸的线性范围分别为0.5-40、0.05-5μg.mL-1,提取回收率均〉75%。单剂量口服参比制剂和受试制剂后,阿莫西林和克拉维酸钾的药动学参数如下:t1/2分别为(1.64±0.72)、(1.80±1.05)h和(1.90±0.84)、(2.12±1.35)h;Cmax分别为(13.19±4.61)、(14.95±6.02)μg.mL-1和(1.56±0.48)、(1.51±0.47)μg.mL-1;tmax分别为(1.78±0.26)、(1.80±0.68)h和(1.20±0.33)、(1.06±0.29)h;AUC0→7分别为(28.86±5.56)、(29.15±5.82)μg.h.mL-1和(2.88±0.95)、(2.70±0.95)μg.h.mL-1;AUC0→∞分别为(31.12±6.03)、(31.65±5.79)μg.h.mL-1和(3.08±0.92)、(2.94±0.94)μg.h.mL-1。以实测值AUC0→t计算,受试制剂中阿莫西林与克拉维酸钾的相对生物利用度分别为(101.8±14.2)%和(98.0±27.4)%。结论本法专一性好,操作简便快捷,成功应用于阿莫西林-克拉维酸钾(8∶1)干混悬剂的生物等效性研究,阿莫西林-克拉维酸钾(8∶1)干混悬剂试验制剂相对参比制剂生物等效。Objective To detect the pharmacokinetic parameters of amoxicillin-clavulanate(AMO-CLV)(8∶1) dry suspension in healthy male volunteers by RP-HPLC,and to evaluate the bioequivalence of the dosage form of this drug.Methods Twenty healthy male volunteers were given AMO-CLV(8∶1)dry suspension and AMO-CLV(8∶1)tablets in a randomized crossover order,and serum concentrations of AMO and CLV were determined by RP-HPLC.DAS was used to calculate the pharmacokinetic parameters of amoxicillin and clavulanate,and to assess the bioavailability of the dry suspension.Results The linear range of amoxicillin was 0.5~40 μg·mL-1,and that of clavulanate was 0.05~5 μg·mL-1.The recovery of both was more than 75%.After oral administration of a single dose of the reference reagents and test reagents,the pharmacokinetic parameters were obtained as follows:t1/2 was(1.64±0.72),(1.80±1.05) h and(1.90±0.84),(2.12±1.35) h;Cmax was(13.19±4.61),(14.95±6.02) μg·mL-1 and(1.56±0.48),(1.51±0.47) μg·mL-1;tmax was(1.78±0.26),(1.80±0.68) h and(1.20±0.33),(1.06±0.29)h;AUC0→7 was(28.86±5.56),(29.15±5.82) μg·h·mL-1 and(2.88±0.95),(2.70±0.95)μg·h·mL-1;AUC0→∞ was(31.12±6.03),(31.65±5.79) μg·h·mL-1 and(3.08±0.92),(2.94±0.94) μg·h·mL-1.Relative bioavailability of amoxicillin-clavulanate in the test formulation was(101.8±14.2)% and(98.0±27.4)%.Conclusion This method is simple,quick,and specific.The method has been successfully used for the bioequivalence study of amoxicillin and clavulanate(8∶1) dry suspension.The test and reference are bioequivalent.
关 键 词:阿莫西林-克拉维酸钾(8∶1)干混悬剂 生物等效性 高效液相色谱法
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