Etonogestrel implant contains a hormone that prevents ovulation (the release of an egg from an
ovary). This medication also causes changes in your cervical mucus and uterine lining, making it harder
for sperm to reach the uterus and harder for a fertilized egg to attach to the uterus.
Etonogestrel implant is used as contraception to prevent pregnancy. The medicine is contained
in a small plastic rod that is implanted into the skin of your upper arm. The medicine is released slowly
into the body. The rod can remain in place and provide continuous contraception for up to 3 years.
Etonogestrel implant may also be used for other purposes not listed in this medication guide.