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Donepezil: uses, side effects & brands
Donepezil eases symptoms of Alzheimer’s dementia. It belongs to the Parkinson’s & dementia medicine group. These help movement in Parkinson’s disease or memory/function in dementia.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Parkinson’s & dementia medicine |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Treats symptoms of Alzheimer's dementia
- Can help memory and thinking for a time
- Used in mild, moderate and severe Alzheimer's
Common brand names
- India: Donep, Aricep, Dopezil
- Worldwide: Aricept
Common side effects
- Nausea or diarrhoea
- Trouble sleeping or vivid dreams
- Muscle cramps
- Slow heartbeat
Before taking it — precautions
- Tell your doctor about heart rhythm problems, asthma, stomach ulcers or seizures
- Tell your doctor about other medicines, especially those affecting heart rate
- Report fainting or dizziness
When to see a doctor urgently
- Fainting or very slow heartbeat (urgent)
- Black stools or vomiting blood (urgent)
- Fits or seizures
Not a prescription — no dose shown. The right dose of donepezil depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Will donepezil cure dementia?
No. It may ease symptoms for a while but does not stop the disease.
Why might it cause vivid dreams?
It can affect sleep; taking it in the morning may help.
How long until it works?
Benefits may take several weeks to appear.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.