Another 6 open-label or retrospective case studies showed a trend toward decreased sundowning and improved sleep quality. 90 Several recent studies which reflect use of melatonin specifically in patients with dementia, demonstrated that melatonin reduces sundowning behavior, nocturnal activity, decreases sleep latency, and improves quality of sleep. 89 - 91 De Jonghe et al. 47 performed a systematic search of the literature related to melatonin treatment in dementia which was published between 1985 and 2009.
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