Efavirenz Ethinyl estradiol / Norethindrone acetate 461

Interaction Color Code
Clinical Bottom Line
Do not coadminister: Reduced levels of progestin
Drug 1
Drug 1 dose
400 mg x 10 days
Drug 1 effect

No significant change

Drug 2 dose
Ethinyl estradiol 50 mcg x 1 dose
Drug 2 effect

No significant change

Management

Use alternative contraceptive method

Import ID
461