It is prescribed for me to help with the fatigue, although it does not eliminate it completely. I still have to sleep during some days(like naps). I notice that it seems to help my recall a lot. (Gee, maybe they should give this to Alzheimer's patients.) I haven't had any problem with it so far...

A friend here was able to obtain samples from her doctor; maybe yours would do the same if he thinks you are a candidate for trying this...

Cathie