Martha, Thank goodness for people like your friend who was one of the original levidopa patients! At least her doctors learned from her and now others benefit from what she went through. As for the natural vs drugs, I've always been convinced that there is a reason why the drugs were developed in the first place: because the vitamins do not have the same effect the drugs do. The drugs were developed specifically to help with the illness, while vitamins must be given in just the right combination and then there's no guarantee that they'll work. In the case of levidopa, it's a chemical that replaces a chemical that is missing in the brain (which helps the brain to function). Vitamins just aren't that specific! Trish