[Drug interactions with oral contraceptive steroids].

  title={[Drug interactions with oral contraceptive steroids].},
  author={Todor A Chernev},
  journal={Akusherstvo i ginekologiia},
  volume={23 5},
Various drugs are capable of enhancing or inhibiting the effect of oral contraceptives (OCs). Drugs of the rifampicin group are active enzyme inductive agents which affect both the estrogenic and progestagenic components of OCs. This was demonstrated by the following pharmacokinetic study. 8 women received a single dose of Minovlar (50 mg of ethinyl estradiol and 1 mg of norethindrone acetate) during a rifampicin course, and another dose of the same OC was administered after the completion of… CONTINUE READING