Active Ingredient

Donepezil

Donepezil is a medication used to help improve mental function. It is commonly prescribed for individuals experiencing memory problems.

By supporting brain function, Donepezil can assist in daily activities and overall quality of life.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Donepezil Brands

Aricept

Strengths 5mg, 10mg

Donepezil is typically used to manage symptoms related to memory and cognition.

Donepezil works by increasing the levels of a chemical in the brain called acetylcholine. This chemical is important for memory and thinking.

It achieves this by inhibiting the enzyme that breaks down acetylcholine, thereby enhancing communication between nerve cells.

This mechanism helps improve symptoms related to memory and cognition.

Not everyone experiences side effects with Donepezil, and many are mild and temporary.

If you experience serious or persistent side effects, contact your doctor.

What is Donepezil used for?

Donepezil is used to manage symptoms of Alzheimer’s disease and other forms of dementia.

How long does it take for Donepezil to work?

It may take several weeks to notice an improvement in symptoms. Discuss with your doctor for more details.

Can Donepezil be taken with other medications?

Donepezil may interact with other medications. It’s important to inform your doctor about all the medicines you are taking.

Are there any dietary restrictions while taking Donepezil?

There are no specific dietary restrictions, but it’s advisable to avoid excessive alcohol consumption.

What should I do if I miss a dose of Donepezil?

If you miss a dose, take it as soon as you remember unless it’s close to the time for your next dose. Do not double up doses.