is norplant the same as nexplanon?
Are Implanon and Norplant the Same Thing? Implanon (etonogestrel) and Norplant System (levonorgestrel) are contraceptive implants used to prevent pregnancy. Implanon is used to prevent pregnancy for up to 3 years, and Norplant is used to prevent pregnancy for up to 5 years. The brand name Norplant is discontinued.