I have the ADHHHHD
child. My DS has been on meds for a little over a year. The difference is amazing. The funny thing is with him is that he can play computer games all day unmedicated but can't focus on schoolwork. In K he would spin in his chair crawl under the table get on top of the table. He has been on Concerta for about 6 mths and has almost straight a's(did not do well at all before meds).
Jamie