Hi HeatherAnne,I have had RSD for about 8 years now and tried all kinds of medication,about 2 years ago i came across a new consultant dealing in RSD and he put me on a course of Phenytoin infushions (750mm) every 3 weeks .I find that i do get reduced pain lvls for about 8 to 10 days and i was wondering if you or any other RSDs have tried this and if so what results did you get.Thanks TonyG