Dementia Answers: What Is Donepezil?
- Team Writer

- Dec 5, 2025
- 2 min read
Updated: 3 days ago
Video Transcript [Answer 1138]
Welcome and thank you for joining me.
What is donepezil, also known by the brand name Aricept?
It is a prescription medicine often used to treat people with Alzheimer's disease, one cause of Dementia that affects memory thinking and behavior. It is also used off-label with specific other causes of Dementia.
Donepezil does not cure the disease. Yet it may provide a slight improvement in symptoms for a while. It works by helping certain brain chemicals that support memory and thinking. Some people who take it may feel more alert or able to do daily tasks a little more easily.
Taken orally, donepezil is typically taken once daily with or without food, and it's essential to take it at the same time each day. A slightly different formula is available as a multi-day patch on the skin. Like all medicines, donepezil can have side effects. Some people may feel sick to their stomach, have trouble sleeping, have nightmares, or feel dizzy. These side effects are usually mild, but if they worsen, it's essential to inform the doctor.
Donepezil works best when taken as part of a complete care plan, including support from caregivers and healthy daily routines. Monitor its usefulness in collaboration with the medical team and discuss when or if the dose should be adjusted or discontinued.
On behalf of the Dementia Society of America®, thank you for joining me today. Stay informed, stay healthy, and take care of yourself.
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