adhd
"I am 23 years old and have been on Concerta for over 2 years. I can tell you, as all of you have mentioned, that the first initial response my brain had to this medicine is efficiency. I went from not knowing if I could make it through school, to getting myself back into school after a year or so off. I went to college, and started taking Concerta. I had straight As for quite a while. I went from 18 mg, to 27 mg. I have noticed, within the past two years, that my brain has become very used to the drug. I have tried not taking it for a few days, because I don't want to depend on the medicine. However, I do notice after a couple days off of it, that my mind doesn't work at all. I feel like my brain is non-functioning; like I can't do anything."