I am responding to Jwarrwn's question to Rosemary as to how Aricept has improved her husband's life. My husband has been taking aricept for dementia for two months now with amazing results. He has had no side effects even though he takes sinemetCR, florinef, midodrine, cipro, and zoloft and NADH along with several nutritional supplements. Our neurologist decided to give Aricept a try since Ken has had many problems involving neuro transmitters, and this drug works by increasing acetylcholine which sinemet decreases(this is not a very scientific explanation, but that's the idea). Most people wih PD have too much acetylcholine so aricept would not be helpful, but Ken evidently is not most people, and his mental abilities have come back alot since starting the drug. His memory, both long and short term has improved tremendously. Everyone notices it. He feels more confident to talk to people, and he can be understood most of the time. He is not cured of dementia, but he is much better, and both his and my quality of life is better. Our neurologist decided to try Aricept because she said Ken's dementia was not typical of either PD or Alzeimers; I am surely glad she did. Barbara Smith, cg/Ken/69/16