代谢
阿卡波糖在胃肠道内被广泛代谢,主要由肠道细菌代谢,其次是由消化酶代谢,至少转化为13种已知的代谢物。大约三分之一的这些代谢物被吸收进入血液循环,随后通过肾脏排出体外。主要的代谢物似乎是4-甲基pyrogallol的甲基、硫酸盐和葡萄糖苷酸结合物。只有一种代谢物——由阿卡波糖分解出一个葡萄糖分子产生——被确定具有α-葡萄糖苷酶抑制活性。
Acarbose is extensively metabolized within the gastrointestinal tract, primarily by intestinal bacteria and to a lesser extent by digestive enzymes, into at least 13 identified metabolites. Approximately 1/3 of these metabolites are absorbed into the circulation where they are subsequently renally excreted. The major metabolites appear to be methyl, sulfate, and glucuronide conjugates of 4-methylpyrogallol. Only one metabolite - resulting from the cleavage of a glucose molecule from acarbose - has been identified as having alpha-glucosidase inhibitory activity.
来源:DrugBank