Etonogestrel is a medication which is used as a means of birth control for women.It is available as an implant placed under the skin of the upper arm under the brand names Nexplanon and Implanon, and in combination with ethinylestradiol, an estrogen, as a vaginal ring under the brand names NuvaRing and Circlet.Etonogestrel is effective as a means of birth control and lasts at least three or four years with some data showing effectiveness for five years.Following removal, fertility quickly returns.
Etonogestrel is used in hormonal contraception in form of the etonogestrel contraceptive implant and the contraceptive vaginal ring (brand names NuvaRing, Circlet), the latter in combination with ethinylestradiol.
Etonogestrel birth control implants are a type of long-acting reversible contraception, which has been shown to be one of the most effective form of birth control.The failure rate of the implants is 0.05% for both perfect use and typical use because the method requires no user action after placement.Studies of one type, which include over 2,467 women-years of exposure, found no pregnancies.
