Dipyridamole pour prévenir les caillots sanguins
Attia
Revu par Sid DajaniDernière mise à jour par Michael Stewart, MRPharmSDernière mise à jour 13 janv. 2023
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Dipyridamole helps prevent blood clots forming in arteries. This reduces the risk of heart attack and stroke.
Do not take indigestion remedies at the same time of day as your dose of dipyridamole.
If you buy any medicines for cold or pain relief, check with a pharmacist first to make sure they do not contain aspirin.
Side-effects tend to be mild and occur more frequently at the beginning of treatment. The most common are headache, feeling sick (nausea), flushing, and feeling dizzy.
En un coup d'œil
Dipyridamole is an antiplatelet medicine that helps prevent blood clots.
It is used after heart valve replacement or a previous stroke.
It is available as tablets, modified-release capsules, and oral liquid.
Take tablets 30-60 minutes before a meal and capsules with or shortly after a meal.
Common side effects include nausea, dizziness, headache, and a flushed face.
Tell your doctor if you are pregnant, have heart conditions, or low blood pressure.
Check with a pharmacist before taking other medicines, even those without a prescription.
About dipyridamole
Type de médicament | Antiplatelet medicine |
Utilisé pour | To prevent clots forming in blood vessels after heart valve replacement, or a previous stroke |
Aussi appelé | Attia® |
Disponible sous forme de | Tablets, modified-release capsules and oral liquid medicine |
In your blood there are 'sticky' cells called platelets. When you cut yourself, the platelets stick to each other (clot) to seal the wound. Sometimes platelets stick to each other inside a blood vessel - this is called a thrombus. A thrombus can block a blood vessel, and this is often the cause of a AVC ou crise cardiaque. This is more likely to happen if you have had surgery to replace a heart valve, or if you have blood vessel disease (for example, if you have had a stroke or a accident ischémique transitoire).
Dipyridamole reduces the 'stickiness' of platelets. It will help to prevent a thrombus forming in an artery, which will reduce the risk of you having a heart attack or a stroke. It is often prescribed alongside other medicines to prevent blood clots. One such medicine is aspirine, which is another antiplatelet medicine.
Before taking dipyridamole
Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking dipyridamole it is important that your doctor knows:
Si vous êtes enceinte ou si vous allaitez.
If you have angina, or any other heart condition or circulation problem.
If you have low blood pressure.
If you have any bleeding problems.
If you have migraines, or if you have a muscle-weakening disease called myasthenia gravis. Dipyridamole can make these conditions worse.
Si vous avez déjà eu une réaction allergique à un médicament.
Si vous prenez d'autres médicaments. Cela inclut tous les médicaments que vous prenez et qui sont disponibles à l'achat sans ordonnance, ainsi que les médicaments à base de plantes et les médecines complémentaires.
How to take dipyridamole
Before you start this treatment, read the manufacturer's printed information leaflet from inside your pack. The leaflet will give you more information about dipyridamole and a full list of side-effects which you may experience from taking it.
Take dipyridamole exactly as your doctor tells you to. Your doctor or pharmacist will tell you how much to take and when to take it, and this information will also be printed on the label of the pack to remind you. As a guide, if you have been prescribed dipyridamole tablets, you will need to take three or four doses daily. If you have been prescribed dipyridamole capsules, you will need to take two doses daily, usually in the morning and the evening.
There is an important difference in the way dipyridamole tablets and dipyridamole capsules are taken. If you have been supplied with tablets, take your doses 30-60 minutes before a meal. If you have been supplied with capsules, take your doses at the same time as a meal, or shortly afterwards.
It can help to take your doses with a drink of water. Swallow the tablets/capsules whole - this means do not crush or chew the tablets, or open the capsules.
Try to take your doses at the same times of day, each day. This will help you to remember to take them.
If you do forget to take a dose, take it as soon as you remember, unless it is nearly time for your next dose, in which case leave out the forgotten dose. Do not take two doses together to make up for a missed dose.
Tirer le meilleur parti de votre traitement
Essayez de respecter vos rendez-vous réguliers avec votre médecin. Cela permet à votre médecin de suivre vos progrès.
If you buy any medicines, check with a pharmacist that they are suitable for you to take. For example, some indigestion remedies can interfere with the way your body absorbs dipyridamole, so they should not be taken at the same time of day. Also, it is recommended that you do not take any preparations containing aspirin without checking this first with your doctor. Several medicines for pain relief and cold relief that can be bought at retail outlets contain aspirin, so check the label carefully before you buy.
If you are having an operation or any medical treatment, tell the person carrying out the treatment that you are taking dipyridamole.
Can dipyridamole 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 most common ones associated with dipyridamole. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.
Commun dipyridamole side-effects - these affect fewer than 1 in 10 people who take this medicine | Que puis-je faire si je ressens cela ? |
Se sentir malade (nausée), diarrhée | Stick to simple foods - avoid rich or spicy meals. Drink plenty of water to replace any lost fluids |
Feeling dizzy or faint, particularly when standing up | Try getting up and moving more slowly. If you begin to feel dizzy, sit down until you feel better |
Headache, muscle pains | Drink plenty of water and ask your pharmacist to recommend a suitable painkiller. If either of these continue, speak with your doctor |
Flushed face | This should soon settle. If it becomes troublesome, speak with your doctor |
Si vous ressentez d'autres symptômes que vous pensez être dus à ce médicament, parlez-en à votre médecin ou à votre pharmacien.
How to store dipyridamole
Gardez 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.
Capsules should be kept in the original container and any remaining capsules discarded six weeks after opening the container.
The oral liquid medicine lasts for one to two months after first opening, depending on which brand you have been given. Check the manufacturer's leaflet that comes with your medicine.
Informations importantes sur tous les médicaments
Informations importantes sur tous les médicaments
Ne prenez jamais plus que la dose prescrite. Si vous soupçonnez que vous ou quelqu'un d'autre avez pris une surdose de ce médicament, rendez-vous au service des urgences de votre hôpital local. Emportez le contenant avec vous, même s'il 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 de médicaments périmés ou indésirables. Apportez-les à votre pharmacie locale qui s'en débarrassera pour vous.
Si vous avez des questions concernant 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 via le Site web de Yellow Card.

Vous n'êtes pas sûr de mélanger des médicaments ?
Vérifiez les interactions possibles entre les médicaments, les compléments et les aliments avant de les prendre ensemble.
Questions fréquemment posées
Can I take common painkillers or cold remedies while on dipyridamole?
You should check with a pharmacist before taking any over-the-counter painkillers or cold remedies. Many of these products contain aspirin, which is another antiplatelet medicine, and taking it without your doctor's knowledge could interfere with your treatment plan. Always check the label carefully.
What should I do if I forget a dose of dipyridamole?
Si vous oubliez une dose, prenez-la dès que vous vous en souvenez, sauf s'il est presque l'heure de votre prochaine dose prévue. Dans ce cas, vous devez sauter la dose oubliée et continuer avec votre programme de dosage habituel. Ne prenez pas une double dose pour compenser une dose oubliée.
Are there specific storage instructions for dipyridamole capsules versus the oral liquid?
Yes, there are different storage guidelines depending on the form of dipyridamole you are using. Capsules should be kept in their original container and any remaining capsules discarded six weeks after the container is opened. The oral liquid medicine has a shorter shelf life once opened, lasting one to two months; you should check the manufacturer's leaflet for the exact duration for your specific brand.
What is the key difference when taking dipyridamole tablets compared to capsules?
The main difference is related to meals. If you have been prescribed dipyridamole tablets, you should take them 30-60 minutes before a meal. If you are taking dipyridamole capsules, they should be taken at the same time as a meal or shortly afterwards.
What are the common side effects of dipyridamole and how can I manage them?
Common side effects include feeling sick (nausea), diarrhoea, dizziness, headache, muscle pains, and a flushed face. For nausea and diarrhoea, stick to simple foods and drink plenty of water. If you feel dizzy, stand up slowly or sit down until you feel better. For headaches and muscle pains, drink plenty of water and ask your pharmacist for a suitable painkiller. A flushed face should settle on its own.
Lectures complémentaires et références
- Manufacturer's PIL, Attia 200 mg Modified-Release Capsules; Dr. Reddy's Laboratories (UK) Ltd, The electronic Medicines Compendium. Dated February 2022.
- Médicaments Complets BNF 89e Édition; Association Médicale Britannique et Société Royale Pharmaceutique de Grande-Bretagne, Londres.
À propos de l'auteurVoir la biographie complète

Michael Stewart, MRPharmS
Responsable de l'examen des notices de médicaments – Contractuel, Pharmacien
BPharm (Hons), MRPharmS
Michael est un pharmacien communautaire exerçant dans les Midlands et le South Yorkshire avec plus de 20 ans d'expérience dans le conseil sur les médicaments et les conditions médicales. Il possède une solide expérience en formation dans le domaine de la santé, ayant produit et dispensé des cours de formation pour les équipes de pharmacie et le personnel des établissements de soins résidentiels, y compris les infirmières. Il a également contribué aux comités consultatifs de pharmacie pour la gestion des affections de faible gravité dans la communauté.
À propos du critique

Sid Dajani
Sultan Dajani a obtenu son diplôme à la London School of Pharmacy en 1994 et est devenu le plus jeune membre élu du conseil de la Royal Pharmaceutical Society depuis sa fondation en 1842.
Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
Article également disponible en Anglais, Allemand, Espagnol, Français, Italien, Portugais, Hindi, Hébreu, Arabe, and Suédois.
Prochaine révision prévue : 12 juil. 2027
13 janv. 2023 | Dernière version

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