代谢
布地奈德在首次通过肝脏时,有80-90%被代谢。布地奈德通过CYP3A酶代谢为其两个主要代谢物,6beta-羟基布地奈德和16alpha-羟基泼尼松龙。这些代谢物的糖皮质激素活性与母化合物相比可以忽略不计(<1/100)。CYP3A4是布地奈德最强的代谢酶,其次是CYP3A5和CYP3A7。
Budesonide is 80-90% metabolized at first pass. Budesonide is metabolized by CYP3A to its 2 major metabolites, 6beta-hydroxybudesonide and 16alpha-hydroxyprednisolone. The glucocorticoid activity of these metabolites is negligible (<1/100) in relation to that of the parent compound. CYP3A4 is the strongest metabolizer of budesonide, followed by CYP3A5, and CYP3A7.
来源:DrugBank