My grandson is 7 yrs old and just started on 36mg of concerts. He has severe ADHD with behavior issues such as yelling, screaming, throwing things, fighting, and threaten others. He has been expelled for a total of 3 weeks this year alone. He has been on it for 5 days now and seems to be doing much, much better. After reading these reviews I'm really scared for him to take it, he's already skinny and has a problems going to sleep. Can anyone give me some sound advice on this? I'm so close to a bootcamp type school, this concerts maybe his last chance but not at the risk of his health. PLEASE!!!