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Please read the posts by Donzim, her husband suffered from hallucinations and he had Parkinson's. They stopped the hallucinations by using niacin. She's giving name of a doctor that you can look up his work on Google. If you have never taken niacin I will start slowly since its causes flushing of the face and the ears. Your body gets used to it after a while however it's a little bit disconcerting When you first start. Mary