Etonogestrel
"I've had the Nexplanon in for 5 years. When it first got inserted it itched like crazy, but eventually it went away. I haven't had a period the whole time. No spotting or anything. I can't really comment on the mood swings as I've been on anxiety/depession medicine for 15 years. Now that I think about it, I'm pretty sure it caused all of my weight gain, but I'm not pregnant so there's that. Overall I've had a great experience."