I know this med was mentioned in a thread on fatigue somewhere recently, but can't find it. I'd tried it in the past and found it helped with concentration, but not so much with physical energy. I'm trying it again now with 100mg dose, but it didn't seem to do anything other than keep me awake for a little while at night, which was not what I wanted. Has anyone found it helpful? I only feel like I have any energy at all when I take a lot of codeine, so I'm trying to find alternatives.