Ethinylestradiol/norethisterone (EE/NET), or ethinylestradiol/norethindrone, is a combination birth control pill which contains ethinylestradiol (EE), an estrogen and norethisterone (NET), a progestin.

[1] Some preparations of EE/NET additionally contain an iron supplement in the form of ferrous fumarate.

[3] Side effects can include nausea, headache, blood clots, breast pain, depression, and liver problems.

[2] Use is not recommended during pregnancy, the initial three weeks after childbirth, and in those at high risk of blood clots.

[4] Smoking while using combined birth control pills is not recommended.