J.S.
I have a 11 yr old grandson who has Asperger's and when he hit a growth spurt he required a dose change in the drug he is on(conserta). my daughter is a nurse and she read your post, she suggested that the problem maybe that the dose your son is on is not enough to sustain your son through the day and maybe the reason for your son's behavior at school. It would be a good idea to take your son back to the doctor and have him re-adjust your son's dose. Good luck! J.