I took Concerta most of undergrad and 3/4 of grad school til I had to stop from the extreme stomach pain the concerta gave me. A doctor recommended the supplement phosphatidylserine + a ginko supplement. While it was no Concerta the supplement combined with a healthy diet and lots of yoga got me thru the remainder of grad school and I even graduated with honors and was nominated by my professors for several honor societies. Now that I am working full time I wish I could take concerta again but the side effects are too much- I just started on lomotrigine(lamictyl) for my bi-polar II and it really helps.