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盐酸氟桂利嗪片人体生物等效性研究

李扬 王威 刘蕾 史爱欣 赫广威 李可欣 孙春华 宋友华

摘要:目的:12名健康受试者随机自身交叉口服20mg盐酸氟桂利嗪片和孚瑞尔进行药代动力学和生物等效性研究。方法:采用高效液相色谱荧光检测法,测定血浆中盐酸氟桂利嗪的浓度。结果:经3p97生物利用度计算程序处理拟合,得盐酸氟桂利嗪片和孚瑞尔AUC0~∞分别为(328.15±24.52)μg/(h.L)和(351.93±35.86)μg/(h.·L),Cmax分别为(39.41±5.67)μg/L和(39.89±3.39)μg/L,Tmax分别为(2.56±0.57)h和(2.64±0.52)h,经配对t检验,两者的主要药动学参数均无显著性差异(P>0.05)。采用梯形法计算的盐酸氟桂利嗪片和孚瑞尔的AUC0~t分别为(360.40±23.50)μg/(h.L)和(377.81±28.59)μg/(h.L)。结论:经方差分析和双单侧检验,结果表明,两者具有生物等效性,盐酸氟桂利嗪片剂的相对生物利用度为(95.7±6.6)%。
关键词:盐酸氟桂利嗪;高效液相色谱法;生物等效性
中图分类号:R97   文献标识码:B   文章编号:1001-0408(2000)03-0120-03

Study on Bioequivalence of Flunarizine Hydrocloride Tablets

LI Yang,WANG Wei,LIU Lei,SHI Aixin,HE Guangwei,LI Kexin,SUN Cunhua,SONG Youhua
(Clinical Pharmacy Base, Beijing Hospital,Beijing 100730)

ABSTRACT:OBJECTIVE:The bioequivalence and pharmacokinetics of two kinds of flunarizine hydrocloride tablets were studied in 12 healthy male volunteers. METHODS:An oral dose of 20mg of test or reference flunarizine hydrocloride was given according to a randomized 2-way cross-over design,blood samples were withdrawn up to 24 hours post administration,and plasma concentrations of flunarizine hydrocloride were determined by high performance liquid chromatography(HPLC)fluorescence detection. RESULTS:Concentration-time curves of two preparations fitted to a one-compartment model.The peak plasma levels(Cmax)of flunarizine hydrocloride test drug and reference drug were(48.71±5.40)μg/L and (48.83±4.51)μg/L respectively, the peak time(Tmax)were(3.17±0.39)h and (3.13±0.38)h respectively,and AUC0~t were(360.40±23.50)μg/(h·L)and(377.81±28.59)μg/(h·L) respectively.CONCLUSION:The pharmacokinetics and relative bioavailability data obtained in the study furnished definete proof of bioequivalence of both test and reference flunarizi

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