Dexmethylphenidate
"I have been taking focalin since the 6th grade. My ADD has improved. Everyday, I feel jittery and I shiver uncontrollably. My stomach hurts a lot and when I don't take it consecutively, my appetite goes away. I either eat nothing or everything in sight. I'm naturally skinny but when I don't eat,I'm afraid people will think that's why I'm skinny. I am insanely tired everyday, and my medication used to pick me up but now it doesn't. I hate coffee and I've tried caffeine tablets (they make me 3x more jittery). I have abused focalin before. I tried to get high on 3 different occasions, but they all have been unsuccessful. I have terrible anxiety."