Hi! Be very, very careful with Topamax. Research it first and find out what other people's experiences have been while on it. I was given Topamax as a trial for my migraines, and it was an awful experience. At first it increased my RLS significantly, then it turned to numbness and tingling which was actually very painful. I was also a walking zombie, staring into space, forgetting thiings...plus a whole string of other side effects. I know all medication works differently on different people, but this one is nothing to play around with. Also, if you do try it (although I have never heard of prescribing it for RLS), you cannot just stop taking it, as it could cause seizures. You have to slowly wean yourself off.
Hope that helps a little!