Norethindrone Acetate Ethinyl Estradiol And Ferrous Fumarate + Rifampin Interaction
Majorinteraction on record
Description
Rifampin increases metabolism of norethindrone and ethinyl estradiol, reducing contraceptive effectiveness and increasing breakthrough bleeding and menstrual irregularities.
Mechanism
Increased metabolism of norethindrone and ethinyl estradiol
Source: NLP:norethindrone acetate and ethinyl estradiol and ferrous fumarate