I've taken probably all the stimulants (not at the same time...) with varying degrees of success over the years for my ADHD. Adderall wasn't one I was on for very long, as good old "Vitamin R" seems to be the most effective for me. Problem is, I "burn through it" very fast. Enter Concerta. Problem Number Next: Concerta doesn't come in a high enough dose without taking two pills, and that's expensive. Finally we tried Daytrana, and found that 15mg was way more than enough. Eventually we settled on 10mg, and it is effective all day and in fact nearly puts me right to sleep when I first take it, so I have to take 5mg of methylphenidate at the same time. Don't ask me how that works, but it does.
So... consider Daytrana. It helped me get my overall milligram intake WAY down.