摘要
目的研究阿奇霉素颗粒剂和片剂在健康人体内的药物动力学及相对生物利用度,为临床合理用药提供依据。方法采用三周期三交叉试验设计,利用建立的液相色谱-串联质谱法测定24名健康男性受试者口服含阿奇霉素0.5 g的阿奇霉素颗粒(受试制剂Ⅰ)、阿奇霉素片A(受试制剂Ⅱ)及阿奇霉素片B(参比制剂)后不同时刻血浆中阿奇霉素的质量浓度,同时绘制血药质量浓度-时间曲线并计算主要药物动力学参数。结果阿奇霉素颗粒、阿奇霉素片A、B血浆中阿奇霉素的tmax分别为(1.9±0.6)、(1.9±0.7)、(1.8±0.6)h,ρmax分别为(441.0±129.5)、(421.7±142.8)、(426.2±128.1)μg.L-1,t1/2分别为(48.0±10.7)、(44.8±8.0)、(45.6±9.8)h,AUC0-t分别为(4 564.6±1 312.0)、(4 743.1±1 616.1)、(4 654.6±1 489.4)μg.h.L-1,AUC0-∞分别为(5 224.6±1 529.7)、(5 373.4±1 854.7)、(5 278.7±1 675.9)μg.h.L-1。以AUC0-t计算,阿奇霉素颗粒剂及片剂的相对生物利用度分别为(99.7±14.0)%和(101.8±13.8)%。结论双单侧检验结果证明,阿奇霉素颗粒及阿奇霉素片A与阿奇霉素片B具有生物等效性。
Objective To study the pharmacokinetics and relative bioavailability of azithromycin granules and tablets. Methods A liquid chromatography-tandem mass spectrometry (LC-MS-MS) method was developed to determine plasma concentrations of azithromycin in 24 healthy Chinese male volunteers following a 0. 5 g dose of azithromycin granules( test formulation Ⅰ ), azithromycin tablets A( test formulation Ⅱ ) and azithromycin tablets B ( reference formulation) with three cross-over design, the blood concentration-time curves were ploted and the main pharmacokinetic parameters were calculated. Results The main pharmacokinetic parameters of test Ⅰ , test Ⅱ and reference formulation were: tmax ( 1.9 ± 0. 6), ( 1.9 ±0. 7 ), ( 1.8 ±0. 6) h; pmax(441.0 ± 129.5), (421.7 ±142. 8), (426.2 ±128. 1) μg·L^-1 ;t1/2 (48.0 ±10.7), (44. 8 ±8.0), (45.6 ±9. 8) h;AUC0-t(4 564.6 ± 1 312.0), (4 743. 1 ±1 616. 1), (4 654.6 ±1 489.4) μg·h·L^-1; AUC0-∞(5 224.6 ± 1 529. 7), (5 373. 4 ± 1 854. 7), (5 278. 7 ± 1 675. 9) μg·h·L^-1 ,respectively. According to AUC0-t, the relative bioavailability of azithromycin granules and tablets were (99. 7 ± 14. 0)% and ( 101.8 ± 13.8 )%. Conclusions According to the two one-side tests,azithromycin of tests and reference formulations are bioequivalent.
出处
《沈阳药科大学学报》
CAS
CSCD
北大核心
2009年第9期745-749,共5页
Journal of Shenyang Pharmaceutical University
关键词
阿奇霉素
相对生物利用度
生物等效性
液相色谱-串联质谱法
azithromycin
relative bioavailability
bioequivalence
liquid chromatography-tandem mass spectrometry(LC-MS-MS)