"i&#039;ve tried several of the common add medications, and concerta works the best for me. i was on it for two years a few years ago. when i am on this, i produce better work in school and in my job. when i am not on it, my mind has significant difficulty compartmentalizing information, storing it and accessing it when i need it. often i wouldn&#039;t even hear what was being said. this creates major anxiety when i can&#039;t think clear enough to get more challenging tasks done. what concerta also does is makes me hyper- focus on small things like constructing a simple email to send to one person - it&#039;ll take me 15 minutes to write the 30 second email because i&#039;m overly focused on my every word."