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12名男性健康受试者采用随机交叉给药方法。单剂量口服试验药阿莫西林-克拉维酸钾干混悬剂(4∶1)和对照药阿莫西林-克拉维酸钾(4∶1)干混悬剂,阿莫西林500mg,克拉维酸钾125mg,进行人体生物利用度和药代动力学比较。用HPLC荧光检测同时测定阿莫西林和克拉维酸钾血浓度。结果试验药和对照药中阿莫西林的T_(max) 1.58 ± 0.36和1.56 ± 0.34h; C13.94± 220和13.38±2.67 mg·L_(-1); T_(1/2); 1.57 ± 0.19和1.53 ± 0.23h; AUC 52.28 ± 8.22和50.24 ±9.44 mg·h·L~(-1),相对生物利用度104.89% ± 7.73%。克拉维酸钾的T_(max) 0.96±0.37和106±0.50h;C_(max) 2.13±0.44和269±0.99mg· L~(-1) T_(1/2) 1.27±0.19和 1.28 ± 032h; AUC 5.38 ± 0.83和 5.66 ±1.04mg· h· L~(-1),相对生物利用度95.91%±11.21%。两种制剂的AUC和C_(max)经方差分析和双单侧t检验,T_(max)用非参数法统计,两种制剂中阿莫
Twelve male healthy subjects were randomized to crossover therapy. A single dose oral test drug amoxicillin - clavulanic acid potassium dry suspension (4: 1) and the control drug amoxicillin - clavulanate potassium (4: 1) dry suspension, amoxicillin 500mg, Potassium 125mg, for human bioavailability and pharmacokinetic comparison. Simultaneous determination of amoxicillin and clavulanate potassium concentration by HPLC fluorescence detection. Results T max of 1.58 ± 0.36 and 1.56 ± 0.34h for amoxicillin and 13.38 ± 2.67 mg · L -1 for amoxicillin in test and reference drugs, respectively ); T_ (1/2); 1.57 ± 0.19 and 1.53 ± 0.23h; AUC 52.28 ± 8.22 and 50.24 ± 9.44 mg · h · L -1 ), Relative bioavailability 104.89% ± 7.73%. The K_ (max) of clavulanate 0.96 ± 0.37 and 106 ± 0.50h; C_ (max) 2.13 ± 0.44 and 269 ± 0.99mg · L -1 T_ (1) / 2) 1.27 ± 0.19 and 1.28 ± 032h; AUC 5.38 ± 0.83 and 5.66 ± 1.04mg · h · L -1, relative bioavailability 95.91 % ± 11.21%. AUC and C_ (max) of the two preparations were analyzed by ANOVA and double unilateral t test, T_ (max) by nonparametric method, Amo