My SON is on Concerta
and he is ADHD for sure. He can't stand the
thought of sitting still in the
class, he feels the urge to get up and walk or run around. He also yells answers outloud in class....very impulsive.
He will spend HOURS doing legos or playing his guitar (another sign of ADHD). He can focus when he wants, but he is very scattered in the day to day routine.