Levonorgestrel And Ethinyl Estradiol And Ethinyl Estradiol T + Phenytoin Interaction
Moderateinteraction on record
Description
Phenytoin induces CYP3A4 and may decrease plasma concentrations of COCs, potentially diminishing contraceptive effectiveness or increasing breakthrough bleeding.
Mechanism
CYP3A4 enzyme induction
Source: NLP:levonorgestrel and ethinyl estradiol and ferrous bisglycinate