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新工艺制备的葛根黄酮(PF)口服后5~15min血中即可检出,Tmax在0.6~1.6之间,其绝对生物利用度(小鼠)为15.91%。该药为一级动力学代谢,呈二室模型分布,体内药物吸收血药浓度随给药剂量的增加而增高。该药主要分布于肾、脾、心、肝等脏器,其在脑组织中虽分布较低,但其代谢较缓慢。其血浆蛋白结合率为45.22±1.28%,该药主要从肠道排泄。
The pueraria flavonoids (PF) prepared by the new process can be detected in blood from 5 to 15 minutes after oral administration, and the Tmax is between 0.6 and 1.6, and its absolute bioavailability (mouse) is 15.91%. The drug is a first-order kinetic metabolism and is distributed in a two-compartment model. The concentration of drug absorbed by the drug in vivo increases with the increase of the dose. The drug is mainly distributed in kidney, spleen, heart, liver and other organs, although its distribution in the brain tissue is low, but its metabolism is slow. The plasma protein binding rate was 45.22±1.28%, and the drug was mainly excreted from the intestine.