I started out on dextroamphetamine, then switched to adderall when the dextro quit working. As happens with me, the adderall also eventually quit. I was on too high a dosage, and had a terrible time with dermatotillomania (skin picking) for a 2 year period. I'm now taking vyvanse, which helps so far. I worry about the long-term effects of stimulants, but I'm a zombie without them.