代谢
Vilanterol 主要通过细胞色素P450 3A4(CYP3A4)代谢为一系列代谢物,这些代谢物的β1-和β2-激动剂活性显著降低。主要的代谢途径是通过O-脱烷基化,多达78%的回收剂量以O-脱烷基化代谢物的形式消除,而N-脱烷基化和C-脱烷基化是次要途径,分别占回收剂量的5%。
Vilanterol is principally metabolized by cytochrome p450 3A4 (CYP3A4) to a range of metabolites with significantly reduced beta1- and beta2-agonist activity. The major route of metabolism was via O-dealkylation, with up to 78% of the recovered dose eliminated as O-dealkylated metabolites while N-Dealkylation and C-dealkylation were minor pathways, representing 5% of the recovered dose.
来源:DrugBank