My neuro ordered Ampyra for me too. He also ordered it for only once a day instead of the normal 2 x/day. I haven't gone through the process of getting the Ampyra filled because I'm not sure I want to try it due to the possible side effects. I'm already having quite a bit of pain in my thoracic spine area and my left hip and I'm scared of doing anything that could possibly make it worse. Hope your MRI goes well and your body starts adjusting to the Ampyra and it helps improve your walking without increasing your pain.