Avanafil pour la dysfonction érectile
Spedra
Revu par Sid DajaniDernière mise à jour par Michael Stewart, MRPharmSDernière mise à jour 20 Apr 2024
Respecte les directives éditoriales
- TéléchargerTélécharger
- Partager
- Language
- Discussion
- Version audio
Avanafil is for the treatment of adult men with erectile dysfunction.
Take a tablet around 15 to 30 minutes before you plan to have sex. Do NOT take more than one dose in 24 hours.
When you collect your prescriptions, check the strength of the tablets. If they are a different strength to what you are expecting, speak with your doctor or pharmacist for further advice.
Dans cet article:
Sélections de vidéos pour Médecine génito-urinaire
Continuez à lire ci-dessous
About avanafil
Type de médicament | Phosphodiesterase type-5 inhibitor |
Utilisé pour | Erectile dysfunction in adult men |
Aussi appelé | Spedra® |
Disponible sous forme de | Comprimés |
Erectile dysfunction (sometimes called impotence) means that you cannot get or maintain a proper erection. There are several causes, the most common being due to a narrowing of the arteries that take blood to the penis.
Avanafil works by preventing the action of a chemical in your body, called phosphodiesterase type-5. This helps to widen (relax) blood vessels and improves the flow of blood to the penis following sexual stimulation. This helps to maintain an erection.
Avanafil is available on prescription, but it is only prescribed on the NHS for men with erectile dysfunction resulting from certain medical conditions. If you are given a private (non-NHS) prescription, you will be asked to pay for the full cost of the tablets.
Before taking avanafil
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 avanafil it is important that your doctor knows:
If you have any disease, injury or deformity of your penis.
If you have an irregular heartbeat, a heart condition, or blood vessel disease.
If you have had an eye condition causing loss of vision.
If you have high or low blood pressure, or angina.
Si vous avez des problèmes avec le fonctionnement de votre foie ou de vos reins.
If you have had a stroke or a heart attack.
If you have a condition which causes bleeding, such as a stomach ulcer.
If you have sickle cell disease.
If you have ever had bone marrow cancer or leukaemia.
If you are taking or using any other medicines. This includes any medicines you are taking which are available to buy without a prescription, as well as herbal and complementary medicines, and recreational drugs.
Si vous avez déjà eu une réaction allergique à un médicament.
Continuez à lire ci-dessous
How to take avanafil tablets
Retour au sommaireBefore you take avanafil, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about the tablets and will provide you with a full list of the side-effects which you may experience from taking them.
Take avanafil exactly as your doctor tells you to. It is intended to be taken before sexual activity - it is NOT for continuous daily use. You should take one tablet about 15-30 minutes before you plan to have sex. You can take the tablet either before or after food but, if you have just eaten a meal, it may take longer for it to work.
There are three strengths of avanafil tablets: 50 mg, 100 mg and 200 mg. It is likely that you will be given the 100 mg strength tablet to begin with, but this may be changed subsequently depending upon how you react. Each time you collect a prescription, check to make sure it contains the strength of tablet you are expecting.
Do not take more than one dose of avanafil in any 24-hour period.
Tirer le meilleur parti de votre traitement
Retour au sommaireYou and your partner will still need to engage in foreplay, just as you would if you were not taking a medicine for erectile dysfunction. Avanafil will not cause an erection unless you are sexually aroused.
Do not drink large amounts of alcohol before you plan to take avanafil. Drinking too much alcohol can reduce your ability to get an erection and this may prevent you from getting the maximum benefit from the tablets. The combination of avanafil and alcohol will also increase your risk of side-effects such as dizziness.
It is recommended that you do not drink grapefruit juice during the 24 hours before you take avanafil. This is because there is a chemical in grapefruit juice which can increase the amount of avanafil in your bloodstream and this makes side-effects more likely.
Keep your regular appointments with your doctor so your progress can be monitored. If you feel the tablets are too strong for you, discuss this with your doctor as your dose may need to be reduced. Alternatively, if you do not get an erection after taking avanafil, or if it does not last long enough for you to have sex, you should discuss this with your doctor - do not take more tablets than you have been told to.
You should not take avanafil if you are using any other products or taking any other medicines to treat erectile dysfunction.
Continuez à lire ci-dessous
Can avanafil 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 avanafil. 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 avanafil side-effects (these affect fewer than 1 in 10 men) | Que puis-je faire si je ressens cela ? |
Maux de tête | Drink plenty of water. If the headaches continue, let your doctor know |
Flushing, blocked nose | These should soon pass |
Important: if your erection lasts for longer than four hours, or if you get chest pains or a sudden loss of vision or hearing, contact a doctor for medical attention straightaway.
Si vous ressentez d'autres symptômes que vous pensez être dus aux comprimés, parlez-en à votre médecin ou à votre pharmacien pour obtenir des conseils supplémentaires.
How to store avanafil
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
Si vous achetez des médicaments, vérifiez avec un pharmacien qu'ils sont sûrs à prendre avec vos autres 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.
Si vous subissez une opération ou un traitement dentaire, informez la personne qui effectue le traitement des médicaments que vous prenez.
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 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.
Lectures complémentaires et références
- Manufacturer's PIL, Spedra® 50 mg, 100 mg and 200 mg tablets; A. Menarini Farmaceutica Internazionale SRL, The electronic Medicines Compendium. Dated January 2021.
- Médicaments Complets BNF 89e Édition; Association Médicale Britannique et Société Royale Pharmaceutique de Grande-Bretagne, Londres.
Continuez à lire ci-dessous
Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
Next review due: 10 Feb 2027
20 Apr 2024 | Dernière version

Demandez, partagez, connectez-vous.
Parcourez les discussions, posez des questions et partagez vos expériences sur des centaines de sujets de santé.
Inscrivez-vous à la newsletter Patient
Votre dose hebdomadaire de conseils de santé clairs et fiables - rédigés pour vous aider à vous sentir informé, confiant et maître de la situation.
En vous abonnant, vous acceptez notre Politique de confidentialité. Vous pouvez vous désabonner à tout moment. Nous ne vendons jamais vos données.