Le donépézil pour la démence
Aricept
Peer reviewed by Sid DajaniLast updated by Michael Stewart, MRPharmSLast updated 29 Dec 2022
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Donepezil helps ease the symptoms of dementia in Alzheimer's disease.
Take one dose a day, at bedtime.
Your doctor will want to check on your progress regularly, so try to remember to keep your clinic appointments.
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About donepezil
Type de médicament | An anti-dementia medicine (an acetylcholinesterase inhibitor) |
Utilisé pour | Symptoms of dementia associated with Alzheimer's disease |
Également appelé | Aricept®; Aricept Evess® |
Disponible en | Tablets, melt-in-the-mouth tablets and oral liquid medicine |
Donepezil is prescribed for people who have dementia which is associated with Alzheimer's disease. Dementia is a condition of the brain which causes a gradual loss of mental ability. This includes problems with memory, understanding, judgement, thinking and language. Other problems also commonly develop, such as changes in personality and changes in the way a person interacts with others in social situations.
Donepezil is not a cure for dementia, but it can help with symptoms, particularly those which affect thinking and memory. It works by increasing the level of a natural chemical called acetylcholine. This is a chemical which allows nerve cells in the brain to communicate with each other, and it is known that people with dementia have low levels of it.
Donepezil will be prescribed by a doctor who is a specialist. If you are a caregiver, please read this leaflet on behalf of the person who is receiving donepezil.
Before taking donepezil
Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking donepezil it is important that your doctor knows:
If you have a heart condition, such as an irregular heartbeat.
If you have any problems with your breathing, such as asthma or chronic obstructive pulmonary disease (COPD).
Si vous avez des problèmes de fonctionnement du foie.
If you have ever had any of the following: a stomach ulcer, a fit (seizure), or any problems passing urine.
Si vous prenez ou utilisez d'autres médicaments. Cela comprend tous les médicaments que vous prenez et qui sont disponibles sans ordonnance, ainsi que les médicaments à base de plantes et les médicaments complémentaires.
Si vous avez déjà eu une réaction allergique à un médicament.
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How to take donepezil
Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about donepezil, and it will also provide you with a full list of the side-effects which you could experience from taking it.
Your caregiver will help you to take your tablets/medicine exactly as your doctor tells you to. Take one dose every day just before bedtime. It is usual to be prescribed 5 mg daily to take initially, although your dose could be increased to 10 mg daily after the first month. Donepezil can be taken either with or without food.
If you have been given the tablets that melt in the mouth, place the tablet on your tongue and allow it to disintegrate in your mouth before you swallow. You may find it helps to have a drink of water before and afterwards.
If you have been supplied with donepezil liquid medicine (1 mg/ml), you will also be given a dosing spoon with which to measure out your doses. If you are taking a 5 mg dose, fill the spoon to the 5 ml line; if you are taking a 10 mg dose, fill the spoon to the 10 ml line.
If you forget to take a dose, do not worry, just take your dose on the following day as normal. Do not take two doses together to make up for the forgotten dose. If you forget to take donepezil for more than a week, talk with your doctor before you start to take it again, as you may need to re-start your treatment on a lower dose.
Tirer le meilleur parti de votre traitement
It can take a few weeks before you feel the full benefit of donepezil. Continue to take your doses every day until you are told otherwise by your doctor. Medicines for dementia are usually continued for as long as they are thought to be having a worthwhile effect on symptoms.
Your doctor will want to check your progress every few weeks to make sure that you are getting benefit from the treatment. Always try to keep these regular doctor's appointments.
Your doctor is likely to advise you not to drink alcohol while you are on this medicine. Drinking alcohol with donepezil can reduce its effectiveness.
If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking donepezil. This is particularly important if you are going to need a general anaesthetic.
If you buy or take any 'over-the-counter' medicines, always check with a pharmacist that they are safe to take with your prescribed medicines. Some medicines can interfere with the way donepezil works.
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Can donepezil cause problems?
Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the more common ones associated with donepezil. The best place to find a full list of the side-effects which can be associated with your medicine, is from the manufacturer's printed information leaflet supplied with the medicine. Alternatively, you can find an example of a manufacturer's information leaflet in the reference section below. Speak with your doctor or pharmacist if any of the following continue or become troublesome.
Très fréquente donepezil side-effects (these affect more than 1 in 10 people) | Que puis-je faire si je suis confronté à cette situation ? |
Sensation de malaise (nausée) | S'en tenir à des aliments simples - éviter les repas gras ou épicés |
Diarrhée | Boire beaucoup d'eau pour remplacer les liquides perdus. |
Maux de tête | Buvez beaucoup d'eau et demandez à votre pharmacien de vous recommander un analgésique adapté. Si les maux de tête persistent, consultez votre médecin |
Communs donepezil side-effects (ces maladies touchent moins d'une personne sur dix) | Que puis-je faire si je suis confronté à cette situation ? |
Being sick (vomiting), loss of appetite, tummy (abdominal) discomfort | S'en tenir à des aliments simples - éviter les repas gras ou épicés |
Feeling dizzy, faint, or tired | Be especially carefully if you are using any tools or machines |
Sleeping problems, abnormal dreams or nightmares, common colds, feeling agitated or aggressive, muscle cramps, hallucinations (seeing or hearing things that are not really there), itchy rash, and urine incontinence | Si l'un d'entre eux devient gênant, parlez-en à votre médecin. |
Si vous ressentez d'autres symptômes qui pourraient être dus au médicament, demandez conseil à votre médecin ou à votre pharmacien.
How to store donepezil
Conservez tous les médicaments hors de la portée et de la vue des enfants.
Conserver dans un endroit frais et sec, à l'abri de la chaleur et de la lumière directes.
Once a bottle of donepezil oral solution has been opened, it will keep for two months - after this time, make sure you have a fresh supply.
Informations importantes sur tous les médicaments
Informations importantes sur tous les médicaments
Ne dépassez jamais la dose prescrite. Si vous pensez que vous ou quelqu'un d'autre avez pris une dose excessive de ce médicament, rendez-vous au service des accidents et des urgences de votre hôpital local. Emportez la boîte avec vous, même si elle est vide.
Ce médicament est pour vous. Ne le donnez jamais à d'autres personnes, même si leur état semble être le même que le vôtre.
Ne gardez pas les médicaments périmés ou dont vous ne voulez plus. Apportez-les à votre pharmacie locale qui les éliminera pour vous.
Si vous avez des questions sur ce médicament, demandez à votre pharmacien.
Signaler les effets secondaires d'un médicament ou d'un vaccin
Si vous ressentez des effets secondaires, vous pouvez les signaler en ligne sur le site web de la carte jaune.
Autres lectures et références
- Manufacturer's PIL, Aricept® tablets; Eisai Ltd, The electronic Medicines Compendium. Dated November 2021.
- Manufacturer's PIL, Aricept Evess®; Eisai Ltd, The electronic Medicines Compendium. Dated November 2021.
- Manufacturer's PIL, Donepezil Hydrochloride 1 mg/1 ml Oral Solution; Rosemont Pharmaceuticals Limited, The electronic Medicines Compendium. Dated October 2022.
- Médicaments Complet BNF 89ème éditionBritish Medical Association et Royal Pharmaceutical Society of Great Britain, Londres.
Historique de l'article
Les informations contenues dans cette page sont rédigées et évaluées par des cliniciens qualifiés.
Next review due: 28 Dec 2025
29 Dec 2022 | Dernière version

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