I use Adderall on an as needed basis. My neuro prescribed it back in the summer to help with fatigue. It really helped with fatigue and some of the cognitive fog I have.

I take one now only if I have a full day and need to be thinking clearly. It really works for me, but the down side.... I take it at 8am and at midnight, my mind is still going strong. I only take half the prescribed dose!

One other good for me side effect... it suppresses my appetite. I realized about 9pm that I had not eaten anything since breakfast.