Rivastigmine in the treatment of parkinsonian psychosis and cognitive impairment: Preliminary findings from an open trial

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Abstract
This open study assessed the ability of rivastigmine to treat the neuropsychiatric complications of advanced Parkinson's disease. In a group of 12 patients, hallucinations, sleep disturbance, and carer distress were all improved and cognitive performance significantly enhanced by the drug. © 2001 Movement Disorder Society.