Dear David-- yes, unfortunately dementia CAN be a part of the PD package. It is said that about 1/3 of PWPs get this condition. While in part it may be caused by the PD itself it is also due to the side effects of the meds--Sinemet and the agonists especially. Like everything else, this is a very individual matter. We hear a lot about it on CARE, and not on PIEN, because the PWPS most affected by dementia are not likely to be posting to this list. My husband who is 82 and was Dxd 11 years ago has increasing episodes of dementia, and they can be controlled to a degree by adjusting meds. He has stopped Requip, and takes Seroquel for the hallucinations, but that doesn't completely eliminate them always. We are considering trying Comtan with probable reduction again of Sinemet so as not to get an overload. It becomes a balancing act to get enough Sinemet for mobility but not too much for mental clarity. You might look in the PIEN archives under dementia and also Lewy Body Disease for further info. But again, remember that NOT ALL PWPs get dementia---MOST do NOT. >Hi again! > >I'm still trying to learn all I can about PD. I have studied almost every >link I have found on the subject. I have noticed that dementia is NOT >somthing often listed as a major symptom of PD. Is this true? > >I have this "Mental fog" that seems to vary in severity at times. Memories >are also very vague and confusing sometimes. > >Thanks > >David meigs Camilla Flintermann, CG for Peter 82/70/55 Oxford, Ohio <[log in to unmask]> on PDWebring at http://members.tripod.lycos.nl/genugten/flinterm.htm "Ask me about the CARE list for Caregivers of Parkinsonians ! " And visit the CARE webring at http://www.crosswinds.net/~caregivers/index.html