Barbiturates + Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate Interaction
Moderateinteraction on record
Description
Barbiturates induce CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough bleeding.
Mechanism
CYP3A4 enzyme induction
Source: NLP:norethindrone and ethinyl estradiol and ferrous fumarate