Waking up to the evidence of pharmacological treatments used to manage sleep disorders in people with dementia and mild cognitive impairment-A scoping review.

Sleep disturbance is increasingly recognized as a viable prevention target that could lower dementia risk. While a wide range of pharmacological options exist to manage sleep disturbance in people living with dementia, their use often does not adherent to the quality use of medicine. The complex nature of dementia as a syndrome often requires drugs that target multiple complaints (eg, sleep, cognition, and mood) and thus could produce psychological and physiological side effects that have the potential to do more harm than confer benefits. Therefore, this review first provides an expert narration of the pharmacology of sleep and the mechanisms of agents used to treat sleep disturbance. Then, a systematic scoping review was conducted to analyze evidence from studies over the past 10 years, which examined various pharmacological agents used for sleep disturbance in people living with dementia. SIGNIFICANCE STATEMENT: Sleep disturbances are a common consequence of the neurodegenerative changes occurring in dementia syndromes. They may also be etiologically linked to its development and progression. This review summarizes the pharmacological basis of sleep and collates the impact of medications used for dementia or sedatives on sleep and cognition outcomes. The review highlights gaps in research and will provide clinicians with key information required to make decisions about the quality use of medications to improve sleep health in those with dementia.