I havent, but definately do your research and if it is making your pain way worse I wouldnt stay on it. I would be terrified to stay on it especially if the rsd spread and your mind is racing. it might just be that med, but maybe another one in that class will work for you. I take topomax (I take brand name because generic gives me headaches) and it works great. Alot of people with RSD take it and it works out well for a drug in the seizure med class. Good luck!