I tried this med a long time ago and had severe side effects. I would get very dizzy and I finally quit taking it when I passed out outside in the middle of the winter while taking out the trash. I woke up in a snow bank after I don't know how long and it was a long time before I could get myself up and back into the house. Of course I then had a flare from getting so cold from laying in the snow. I do know that many doctors like this drug for RSD, it seems to be a standard of care prescription. Good luck to you and remember that I am just one person, many others take this with no side effects. Lisa