Ethinyl estradiol / etonogestrel
"Used Nuva for two years from 18yrs old to 20 and it was a dream come true, only positive side effects if any, easy periods, and no pregnancies. 
HOWEVER - after the 2.5 year mark I started having pain & sensitivity in my left leg only, bleeding/sensitive gums, and worst of all chronic yeast infections. 
It all started happening out of nowhere so I went a while not thinking it could be Nuva. After many trials I took the thing out and now my gums, legs, and vagina are back in working condition.

I think NR has long term effects that aren't recognized yet. I had a great time with it for 2 years and suggested it to all my friends, but it really turned on me down the line.
 Luckily, you can just take the thing out and the hormones leave with it!"