I am going to explain something that perhaps I have not explained clearly up until now. The reason I keep recommending people look into non-drug methods of dealing with their RLS, (yet also mention that this does not work for everyone) is this;
Drugs are known to be a burden to the body systems (the liver especially), and many people do not tolerate the side effects. (evidenced on this site.) So, if someone uses non-drug methods and finds relief that is good. If they find that the non-drug methods help a lot, but they still need something in addition, they can perhaps take a much smaller dosage of an appropriate drug. This lessens the body burden and lessens the side effects.
So, it does not need to be an Either/Or situation. It can be a Work Together system. Just so people understand what I have been trying to say.