Risperidone
"My daughter has been on this for several years (started at 0.25mg, worked up to 0.5mg 2x a day) to help with mood/emotion, and to help her move past things when she gets emotionally "stuck" and there were times when I thought it wasn't really doing much. 

Then I couldn't get it refilled for a couple days, so she didn't have any before school. They noticed something was different. They called me to ask if there had been a medicine change. 

Sometimes, you think it isn't working, but at home, things are different than at school. No weight issues: 5', 98lbs."