I have been on ampyra for the last 3 Mths. I have noticed both Gait and balance problems worsen on?Med. when I workout without med I seem to see marked Improvment.But now the Medseem to under mine all that I work so hard to atain. This has me very worried as far as staying on Med. I would some feed back. Just to advise you I do tread mill 25min bench press 15min bike 30 min crunches 100X and streaches to rid my self of back pain. This seem to be Very helpful not on the med. Thank you Mark