I saw a Frontline on the drug industry and how the disease RLS was created by marketers. Mirapex was originally for Parkinsons patients. It increases the amount of dopamine your brain can absorb. It calms the tremors down but one of the side effects is intense need to gamble. I have a friend who is on on one of those drugs for his Parkinsons and he'll kill for a racing form and ride his electric scooter 5 miles to get to the track.