restless legs syndrome
"Have suffered with restless legs syndrome for years.  This medication allowed my legs to relax enough that I can get to sleep.  Negative effects are nausea and that it can take up to an hour to set in.  Nausea can be controlled by dosage.  Sometimes it has no effect and have to wait an hour to take another one.  My wife has also noticed after a few hours it wears off and I'm tossing and turning in my sleep again.  It works but I'm looking for something that works better."