葛根经鼻给药喷雾剂在兔体内药代动力学研究

目的:研究葛根喷雾剂中葛根素在兔体内的药代动力学规律,绘制药-时曲线,据此计算其在兔体内的药代动力学参数。方法:用高效液相色谱法(HPLC)测定葛根素在兔血浆中的浓度,以甲醇沉淀血浆蛋白质,用3P87程序软件计算药代动力学的各参数和生物利用度。结果:葛根经鼻给药喷雾剂在兔体内的过程为二室模型,主要药代动力学参数是t1/2(β)=0.93 h,CL=44.23 mg.L-1,AUC=16.28 mg.h.L-1,Cm ax=5.9 mg.L-1和tm ax=0.975 h。结论:本研究可以为葛根经鼻给药质量评价和剂型改革提供一些科学依据。

Pharmacokinetics of Pueraria for Intranasal on Spray in Rabbits

OBJECTIVE: To explore pharmacokinetic features of puerarin in pueraria spray and calculate pharmacokinetic parameters according to puerarin of drug-time curve in rabbits. METHODS: The concentration of puerarin in plamsa was determined by HPLC. The methanol was used to sediment protine. The 3P87 program was used to calculate the pharmacokinetic parameters. RESULTS: The vivo course of pueraria in spray could be described by the two compartment model. The main pharmacokinetic parameters of Pueraria spray were: t(l/2(beta)) =0.93 h, CL =44.23 mg x L(-1), AUC = 16.28 mg x h x L(-1), Cmax =5.9 mg x L(-1) and tmax = 0.975 h. CONCLUSION: The study will provide some scientific basises for the quality evaluation and pharmaceutics reformation of pueraria for intranasal.