Dutastéride pour l'élargissement de la glande prostatique
Avodart
Revu par Sid DajaniDernière mise à jour par Michael Stewart, MRPharmSLast updated 11 May 2024
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Dutasteride is for men only. It must not be taken by women, children or adolescents.
Take one capsule each day.
Your symptoms may start to improve within a few weeks, although it can take up to six months for you to notice the full benefit.
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About dutasteride
Type de médicament | 5-alpha reductase inhibitor |
Utilisé pour | Enlargement of the prostate gland in men |
Aussi appelé | Avodart®; |
Disponible sous forme de | Capsules |
The prostate gland commonly becomes larger in older men. L'élargissement de la glande prostatique est également appelé hyperplasie bénigne de la prostate (HBP). The prostate is situated close to the bladder, so its enlargement can cause problems with passing urine. Common symptoms that are experienced are having to wait before your urine starts to flow, taking longer at the toilet, dribbling urine, and a feeling that your bladder is not quite empty.
Dutasteride works by blocking the conversion of the hormone testosterone to the more potent hormone dihydrotestosterone. It does this by blocking an enzyme called 5-alpha reductase. Dihydrotestosterone is partly responsible for making the prostate enlarge. Therefore, a reduced amount of dihydrotestosterone in the prostate causes it to shrink. This helps you to pass urine more easily.
Sometimes, more than one type of medicine is needed to control the symptoms of prostate enlargement. Dutasteride is available in combination with another medicine for prostate enlargement, called tamsulosine. The combination brand is called Combodart® and it may give quicker and better relief of symptoms than either medicine alone.
Before taking dutasteride
Retour au sommaireSome 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 dutasteride it is important that your doctor knows:
Si vous avez déjà eu une réaction allergique à un médicament.
Si vous avez des problèmes avec le fonctionnement de votre foie.
Si vous prenez ou utilisez 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 complémentaires.
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How to take dutasteride
Retour au sommaireBefore you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about dutasteride and will provide you with a full list of the side-effects which you may experience from taking it.
Take dutasteride exactly as your doctor tells you to. Take one capsule each day. Swallow the capsule whole - do not chew or open the capsule as this could irritate your mouth.
You can take the capsule either before or after a meal, but try to take the capsule at the same time of day each day. This will help you to remember to take your doses regularly.
If you forget to take a dose on time, take it when you remember. If you do not remember until the following day, skip the missed dose. Do not take two doses together to make up for a forgotten dose.
Tirer le meilleur parti de votre traitement
Retour au sommaireYour symptoms may start to improve within a few weeks although it can take up to six months for you to notice the full benefit. This is because it takes time for the prostate gland to gradually shrink. Because of this, it is important that you continue to take the capsules regularly, even if you don't feel a benefit straightaway.
Remember to keep your regular appointments with your doctor. This is so your doctor can check on your progress.
Consider reducing or stopping the amount of caffeine you drink (commonly found in tea, coffee and cola) and alcohol. These can make your symptoms worse, so drinking less of these things may benefit you.
If you are a smoker, stopping smoking may significantly improve your symptoms. This is because nicotine irritates the bladder. Ask your doctor for advice on quitting.
Dutasteride may cause harm to an unborn baby. Because of this, women who are pregnant should not handle these capsules if they are damaged or leaking. Also, small amounts of dutasteride will be in your semen while you are taking this medicine, and it is therefore recommended that you use a barrier method of contraception (such as a condom) if your partner could become pregnant. If you need further advice about this, speak with your pharmacist or doctor.
If you are having an operation or any medical treatment, tell the person carrying out the treatment that you are taking dutasteride. This is because dutasteride can interfere with a blood test used to detect prostate cancer, so you must tell your doctor about taking dutasteride if you need this test.
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Can dutasteride cause problems?
Retour au sommaireAlong 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 dutasteride. 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.
Common dutasteride side-effects (these affect fewer than 1 in 10 men) | Que puis-je faire si je ressens cela ? |
Reduced desire to have sex, inability to get an erection, breast tenderness | Si l'un de ces éléments devient problématique, parlez-en à votre médecin |
Dizziness when taken with tamsulosin | Ne conduisez pas et n'utilisez pas d'outils ou de machines lorsque vous êtes affecté |
Important: if you develop any pain or lumps in your breast area, or any discharge from your nipples, you should tell your doctor. This is because there have been a few rare reports of breast cancer in men taking 5-alpha reductase inhibitors like finasteride and dutasteride.
Si vous ressentez d'autres symptômes que vous pensez être dus au médicament, parlez-en à votre médecin ou à votre pharmacien pour obtenir des conseils supplémentaires.
How to store dutasteride
Retour au sommaireGardez 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.
Informations importantes sur tous les médicaments
Retour au sommaireInformations 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.
If you buy any medicines, always check with a pharmacist that they are safe to take alongside your prescribed medicines.
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 Yellow Card website.

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.
Lectures complémentaires et références
- Manufacturer's PIL, Avodart® 0.5 mg soft capsules; GlaxoSmithKline UK, The electronic Medicines Compendium. Dated August 2023.
- Médicaments Complets BNF 89e Édition; Association Médicale Britannique et Société Royale Pharmaceutique de Grande-Bretagne, Londres.
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Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
Prochaine révision prévue : 31 mars 2027
11 May 2024 | Dernière version

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