Thanks for your replies. I have left a message for the MDS asking how to wean the Sinemet. He also pushed exercise as a very important part of fighting PD progression. I forgot to mention that my father also had PD. However, he wasn't diagnosed until his early 80s. The MDS says that increases my chance of having PD by over 50%. Frankly, I was suprised the Sinemet did't help either.