The single-rod, etonogestrel-releasing, subdermal implant (ENG implant) is the most effective, long-acting reversible method of contraception available. The failure rate of the ENG implant is 0.05 ...
There are three progestin-containing subdermal implants. The first implant to be developed was Norplant, which is no longer being manufactured. Norplant had six levonorgestrel-containing capsules ...