So happy that you are getting relief, that is awesome news!!
I took Topamax (Topiramate is the generic) for years for migraine prevention and it did a great job in drastically reducing them. Unfortunately it did not help my RSD at all. Everyone is different though! I did not sleep well so my doctor had me take the entire dose before bedtime, it helped with sleeping and I wasn't so tired in the morning. Another tip, in case you have the tingling hands/feet from it, is to eat a kiwi a day (or something high in potassium). The dr gave me that advice and boy did it help. It eventually stops, but that helped!!
Hope you continue to get relief!
Nanc