Welcome to Neruo talk. Hope you get the infomation you need here. You have found the right forum, and there are alot of folks that have MS that can respond to you. My cousin has MS, so I know just a little bit about it. I know of the medicine you speak of. Alot of people feel "drugged and dragging" while taking it. Sometimes it goes away, and others are unable to function well on it at all. Many are started at a lower dose, and gradually increased. In my case, I hated the medication, and I took it for neruological problems associated with my cervical spine issue. I felt just horrible, so I asked my doctor to allow me to stop the Med. Keep close touch with your doctor and do tell him all you are experiencing. I do hope some resolution and pain control can be found for you. There are pain specialists that deal with MS. I wish you all the best as you go forward with your care. ginnie