I'm sure this has been posted before but I thought I'd post again after having some positive experiences that excited me. Consistent use lead to a crash. I save them (Dexedrine, Adderall, Vyvanse are the main amphetamine-based ADHD drugs) for occasions when I could really use the energy, like a social outing. Methylphenidate-based stimulants like Ritalin don't seem to work as well for me. I'm careful of the crash though, and only take it on the advice of my doctor, I can't repeat that enough, these are serious drugs! EDIT: Various edits, and replacing "you" with "I". These are my personal experiences. Also, please ignore the "instant cure" portion of my thread title. It is certainly not proven in any way to be an "instant cure" for CFS/ME.