Gwern has a great write-up on this: http://www.gwern.net/Nootropics#adderall http://www.gwern.net/Nootropics#adderall Of course it's only one data point, but a

Gwern has a great write-up on this: http://www.gwern.net/Nootropics#adderall http://www.gwern.net/Nootropics#adderall Of course it's only one data point, but a high quality one imo. edit: Just saw him linked below, should've read first -_-