Clonazepam
"I have taken Clonazapam for about 5 years on an as-needed basis.  It seems my RLS flares when I am sitting doing more desk work, and these are the nights that are my worst.  Sometimes I wake my spouse with the terrible jumping and twitching and then get up to take the med.  Sometimes, in addition to the restlessness I feel as if my feet will combust from the inside out.  I seem to be taking more than before and may have to go on a regular dose.  No side effects noted, and no grogginess in the morning."