have you tried the extended release flavor of adderall? I found that one to work really well.

currently i'm on dexedrine sp 45 mg, and i don't like it. doesn't wake me up like the adderall did. does help me concentrate though. but how can one concentrate when one is tired all the time.....ugh.

you might just need a higher dosage of adderall. my husband takes 90 mg/day. I usually do best around the 60 mg range of adderall, but it wears off waaaaaay too fast.