History
Research leading to the development of donepezil began in 1983, at Eisai, and in 1996, Eisai received approval from the United States Food and Drug Administration (FDA) for donepezil under the brand Aricept, which it co-marketed with Pfizer. The team at Eisai was led by Hachiro Sugimoto.As of 2011, Aricept was the worlds best-selling Alzheimers disease treatment. The first generic donepezil became available in November 2010, with the US FDA approval of a formulation prepared by Ranbaxy Labs. Research
Donepezil has been tested in other cognitive disorders, including Lewy body dementia, and vascular dementia, but it is not currently approved for these indications. Donepezil has also been found to improve sleep apnea in people with Alzheimers. It also improves gait in people with mild Alzheimers.Donepezil has also been studied in people with mild cognitive impairment, schizophrenia, attention deficit disorder, post-coronary artery bypass surgery cognitive impairment, cognitive impairment associated with multiple sclerosis, CADASIL syndrome, and Down syndrome. A three-year National Institutes of Health trial in people with mild cognitive impairment reported donepezil was superior to placebo in delaying rate of progression to dementia during the initial 18 months of the study, but this was not sustained at 36 months. In a secondary analysis, a subgroup of individuals with the apolipoprotein E4 genotype showed sustained benefits with donepezil throughout the study. At this time, though, donepezil is not indicated for prevention of dementia. ADHD
The addition of donepezil with existing ADHD medications has shown mixed results.
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