Is the effectiveness of Drovelis in combination with Tecfidera and Betacerc not reduced?

In vitro liver enzyme induction studies showed no interaction between Tecfidera and oral contraceptives. No interaction studies with oral contraceptives have been conducted in vivo. Although such interactions are not expected, the use of non-hormonal contraceptive methods, such as condoms, should be considered in consultation with a gynecologist during treatment with Tecfidera. Betaserc does not affect the effectiveness of contraceptive drugs and no time interval is required between them.