" i have been using concerta for many years. it has helped so much, but the only downside to it is it makes me lose weight. i went off of my meds for about three months and gained 50 pounds. this was because i had the habit of eating whatever i want whenever i want and not gain any weight. i was an a  student and as soon as i went off my meds i was getting fs in all of my classes. i then went back on my meds and within three weeks of me being back on concerta, i lost all of the weight i had gained(because i had to make the habit of not eating so much within those three months), i raised some of my grades to as and some to ds. i still passed 7th grade because of my circumstance.i have add, adhd, and cerebral paulsey."