I have done my own research on people I know with pd and it seems that anyone with a type a personality and the background of anything in a compulsive personality, and this includes people who would never have gambled a penny before pd have a lot of urges that dont make any sense to otheres who have know these people for years, gambling, hypersexuality. obsseiffe eating of one particle thing or something that seems to make sense as a different version of the compulsive food item. Having a set routine that doesnt like to be messed with are all things I've noticed and taken note of from my own pd friends requip was not one of the drugs that was supposed to do this but is now be tooted as the drug for restless leg syndrome and many of these are in the side effects are a so you really have to balance the good and the bad of some of these meds and I think the big compaines could do a lot better than they are doing knowing these side effects are something most pd people could live without