The progestin implant, also known as Nexplanon, is a form of long acting, reversible contraception. This progestin implant fact sheet describes how the implant is inserted, its efficacy, common side effects and average cost.
Source: Ali A, Akin A, Bahamondes L, Brache V, Habib N, Landoulsi S, Hubacher D. Extended use up to 5 years of the etongestrel-releasing subdermal contraceptive implant: comparison to levonorgestrel-releasing subdermal implant. Human Reproduction. 2016; 31(11): 2491-2498. doi: 10.1093/humrep/dew222.