Etonogestrel
"I've had the Implanon for almost 3 years now and I plan on putting another one in as this one is removed. They inserted the Implanon when I was on my period and I haven't had a period since (yes!) I'm on a lot of acne medicine already so if it did increase acne I didn't notice. I have also gained weight (8lbs) but that could be due to the whole "freshman fifteen" it's hard to tell. I've recently lost some weight and it has been really, really hard. But again I have no idea if it is from the Implanon. All around though I really like the Implanon. I don't have to worry about taking a pill or getting a shot. It's put in (which is not very painful, only feel the numbing shot) and that's it for 3 years. I love it!"