My husband was on donepezil for a while. I think the neurologist said it would help Alzheimer's, but not other forms of dementia. I just read that there's a blood test for Alzheimer's that can measure beta amyloid proteins. If that's true, it could be useful and less of an ordeal than all the neuropsychological testing. I try to keep my husband stimulated by giving him easy chores to do around the house. He doesn't have much interest in reading, listening to music or watching tv. He still likes to eat.