ADHD
"I am a 20 year old man, going to university and had or still have troubles concentrating with my ADHD, mostly staying on one subject. Started taking Dexedrine, first it made me restless and gave lots of anxiety. Could not hold up a normal conversation or sit still, it made me feel uncomfortable. Then tried Concerta it was effective somewhat but did not help as much as I had hoped, could not notice much of a effect. Ritalin gives me the concentration when I need it most. "