Etonogestrel is a progestogen, which is a female sex hormone similar to the progesterone hormone made naturally by your ovaries. An implant containing etonogestrel is a long-acting, effective and convenient form of contraception. The implant is a small flexible tube which is put under the surface of your skin on your upper arm. It releases etonogestrel slowly into your bloodstream. Each implant will provide contraception for up to three years. Nexplanon® is the brand name of the etonogestrel implant prescribed in the UK at present.
This is a companion discussion topic for the original article at https://patient.info/medicine/etonogestrel-contraceptive-implant-nexplanon