Joyce, I'm glad to hear your success with Symmetrel!!. I was dx with about 9 months ago and my neuro started me on Eldepryl and Symmetrel. He told me that the Symmetrel may or may not help. My only real symptoms are hand and sometimes foot tremors. I've seen only small if any improvement in my symptoms. I am taking only two 100mg a day, your comment about possibly increasing it up to four is intriguing. I'm going to check with my neuro about that. Julian (57/9 mo)