Implanon® is a single-rod contraceptive implant that is inserted under the skin of the upper arm and provides highly reliable protection against pregnancy for up to 3 years. It consists of a non-biodegradable rod measuring 40 mm in length and 2 mm in diameter.

After insertion - a simple procedure performed by medical professionals with a specially developed applicator - Implanon slowly releases a progestogenic hormone, etonogestrel. This is the active metabolite of desogestrel, one of the components of many modern oral contraceptive pills. Most doctors will want to see you every 6 months for a check-up while using the rod.