Etonogestrel
"Before I start my review just know that I rarely ever review anything. I had the Nexplanon implant for a little over two months and I got it removed yesterday. I thought myself invincible and figured most of the side effects wouldn't affect me; well, I was wrong. Within those two  months I became severely depressed, my hair started falling out, had swelling in my throat (to the point where breathing was a problem), my energy was non existent and I bled everyday with no signs of it stopping. You don't have to take a pill every day or worry about replacing it every month or so but please consider and read all the side effects before putting this in. It takes it's toll. Read EVERYTHING about it first."