|Trade names||Alyacen, Aranelle, Balziva, Brevicon, Brevinor, Briellyn, Cyclafem, Dasetta, Femcon, Gencept, Gildagia, Jenest, Kaitlib, Modicon, N.E.E., Norcept, Norethin, Norinyl, Norquest, Nortrel, Ortho-Novum, Ovcon, Philith, Pirmella, Tri-Norinyl, Vyfemla, Wera, others|
Ethinylestradiol/norethisterone, also known as ethinyl estradiol/norethindrone, is a combination birth control pill made up of ethinylestradiol, an estrogen and norethisterone a progestin. It is used for birth control, symptoms of menstruation, endometriosis, and menopausal symptoms. Other uses include acne. It is taken by mouth.
Side effects can include nausea, headache, blood clots, breast pain, depression, and liver problems. Use is not recommended during pregnancy, the initial three weeks after childbirth, and in those at high risk of blood clots. It; however, may be started immediately after a miscarriage or abortion. Smoking while using combined birth control pills is not recommended. It works by stopping ovulation, making the uterus not suitable for implantation, and making the mucus at the opening to the cervix thick.
This combination pill was approved for medical use in the United States in 1964. It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system. It is available as a generic medication. In the United Kingdom three months of medication costs the NHS about 2.70 pounds. In the United States it costs about $25–50 per month. It is marketed under a large number of brand names. In 2016 it was the 55th most prescribed medication in the United States with more than 14 million prescriptions.
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