You cannot take any of the interferons or any opioids or narcotic type pain relievers. It is said to have good pain relieving effect. Some say it helps with fatigue. I very seriously considered this but I changed my mind when I saw the studies on MS progression. So far those are inconclusive at best. It might be a wonderful symptom management drug and that is good too, but only if it really does the job as it does limit what you can take while on it. I just am not convinced that it does anything for progression.
It has been out for a long long time and used off label in MS for at least 20 years. If it was really effective at progression, I think it would have been proven by now.
The anecdotals are either......"I feel great!!!" or " I have not noticed any change." There doesn't seem to be any bad side effects and certainly none that last if you stop taking it. Considering it is used at much higher doeses to keep narcotic drug abuser clean, it make sense that is helps you feel good (lots of energy, no pain etc). If you give this a try, please tell us what you think. I do know there are members on "Chronic Pain" here at HW that take it and love it. You might post there and see what they say.