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作 者:王雨萍[1] 鲁卓林[1] 尹永强[2] 任晋民[3]
机构地区:[1]天津市儿童医院,天津300014 [2]天津医科大学,天津300070 [3]河北医科大学第二医院,石家庄050017
出 处:《天津药学》2013年第2期1-3,78,共4页Tianjin Pharmacy
摘 要:目的:建立LC-MS/MS法测定人血浆中的头孢克肟,评价头孢克肟分散片剂的生物等效性。方法:采用随机、单剂量、两交叉试验设计,空腹口服头孢克肟分散片(A)和头孢克肟分散片(R)100 mg,分别于服药前及服药后各时间点采集血样,用LC-MS/MS法测定血浆中头孢克肟的浓度,并使用DAS软件拟合计算药代动力学参数及评价生物等效性。结果:20名男性健康志愿者单剂量口服头孢克肟分散片100 mg,受试制剂和参比制剂的主要药动学参数为Cmax分别为(2.12±0.79)和(2.16±0.68)μg/ml,Tmax分别为(4.30±0.80)和(4.71±1.05)h,AUC0-24 h分别为(18.69±7.41)和(18.13±6.33)μg.h/ml,AUC0-∞分别为(19.27±7.40)和(18.78±6.29)μg.h/ml。受试制剂的相对生物利用度分别为(103.2±18.0)%。结论:两种头孢克肟分散片剂具有生物等效性。Objective: To investigate the bioequivalence in humans of cefixime dispersible tablets from two manufacturers by an LC - MS/MS method. Methods: In a randomized two - way cross - over design, a single oral dose of 100 mg cefixime dispersible tablets ( A ) and cefixime dispersible tablets ( R) were given to 20 male healthy volunteers. The plasma cefixime concentrations with - in 24 h after administration were determined by LC - MS/MS and the pharmacokinetic parameters and bioavailability were calculated using DAS software. Results: The main pharmacokinetic para - meters of test cefixime tablets (A) and controlled tablet were as follows : Cmax (2.12 ±0.79)vs(2.16 ±0.68) μg/ml; Tmax (4.30 ±0.80)vs(4.71 ± 1.05)h;AUC0-24th( 18.69 ±7.41 )vs ( 18.13 ± 6.33 ) μg .h/ml ;AUC0 -∞ ( 19.27 ± 7.40 ) vs ( 18.78 ± 6.29 ) μg. h/ml. The relative bioavailability of test preparation were ( (103.2 ± 18.0)%. Conclusion: The test cefixime dispersible tablets (A and R ) are bioequivalent to the control.. KEY WORDS cefixime dispersible, LC - MS/MS, bioequivalenec
关 键 词:头孢克肟 液相色谱-串联质谱法 生物等效性
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