Levonorgestrelethinyl Estradiol And Ethinyl Estradiol + Phenytoin Interaction
Majorinteraction on record
Description
Increases metabolism of contraceptive steroids, reducing contraceptive effectiveness and potentially resulting in unintended pregnancy or unscheduled bleeding.
Mechanism
Increases metabolism of contraceptive steroids
Source: NLP:levonorgestrel and ethinyl estradiol