Bosentan Norgestrel + Ethinyl Estradiol + Ferrous Fumarate
ModerateBosentan can make Norgestrel + Ethinyl Estradiol + Ferrous Fumarate work less well as a contraceptive. Bosentan can speed up how quickly your body clears the hormones in this pill, so less of them stays in your blood to prevent pregnancy. If you take both, you may not be fully protected from pregnancy. Ask your doctor or pharmacist about an extra or different method of contraception.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.