Stalevo seems to work for him o.k..What kind of symptoms do you get? I could ask him. He is 84 and he has other problems as well,which inhibits him along with the Parkinson's. He's had blood clotts in the past and his leg is always swollen. I was going to get him a lymphatic leg pump but his Ins. turned him down. Recently, I was going to get him a used pump but the doctor said its not a good idea now. Also a month ago I found out that his corroted arteries are blocked. 90% one side & 80% the other. Doctors said he's not a surgery candidate. Anyway I'm going to give him the generic stalevo from walmart(its Caraco I checked). $368 if he had to pay cash. If I didn't answer your questions feel free to ask.