In 2006, the FDA approved a single-rod, etonogestrel-releasing subdermal implant (ENG implant) or Implanon ... most effective reversible method of contraception; with a failure rate of 0. ...

[File, Standard] One in every five married women in Kenya uses implants as a method of contraception ... and Merck (maker of the 1-rod implant, Implanon, and its successor, Implanon NXT).