ADHD
"My 9 yr old son who has ADHD and ODD has been on Focalin XR for roughly 5 months now after going through 3 other different medicines for his ADHD that produced a lot of side effects. He dropped down to 42 lbs. VERY SCARY, and he would refuse to eat, period. He also takes 1 mg of Risperdal at night.
He has a very high tolerance and is given 40 mg of Focalin XR daily. This is the only drug I have found that does not affect his appetite. He eats non stop when he gets home from school until he goes to bed at night. It has calmed him down  but it seems to wear off after 6 hours. Other than that, this medication is GREAT and I will continue to give it to my son."