Donepezil is used to help improve mental function in people with Alzheimer's disease.
Donepezil does not work the same in all people. Some people taking  donepezil have improved mental function, while others may have unchanged or even worsening mental function.
Donepezil is not a cure for Alzheimer's disease. This condition will progress over time, even in people who take donepezil.
Donepezil may also be used for other purposes not listed in this medication guide.
