Avanafil para la disfunción eréctil
Spedra
Peer reviewed by Sid DajaniLast updated by Michael Stewart, MRPharmSLast updated 20 Apr 2024
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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.
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About avanafil
Tipo de medicamento | Phosphodiesterase type-5 inhibitor |
Utilizado para | Erectile dysfunction in adult men |
También llamado | Spedra® |
Disponible como | Tabletas |
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
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 avanafil it is important that your doctor knows:
Si padece alguna enfermedad, lesión o deformidad del pene.
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 tiene algún problema con el funcionamiento del hígado o de los riñones.
If you have had a stroke or a heart attack.
If you have a condition which causes bleeding, such as a stomach ulcer.
Si tienes anemia falciforme.
Si ha padecido cáncer de médula ósea o leucemia.
Si toma o utiliza otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que pueda adquirirse sin receta, así como hierbas medicinales, medicamentos complementarios y drogas recreativas.
Si alguna vez ha tenido una reacción alérgica a un medicamento.
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How to take avanafil tablets
Before 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.
Aproveche al máximo su tratamiento
You 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.
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Can avanafil 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 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) | ¿Qué puedo hacer si me ocurre esto? |
Dolor de cabeza | Drink plenty of water. If the headaches continue, let your doctor know |
Flushing, blocked nose | Estos deben pasar pronto |
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 experimenta cualquier otro síntoma que crea que puede deberse a los comprimidos, hable con su médico o farmacéutico para que le aconsejen.
How to store avanafil
Mantenga todos los medicamentos fuera del alcance y de la vista de los niños.
Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.
Información importante sobre todos los medicamentos
Información importante sobre todos los medicamentos
Si compra algún medicamento, compruebe con un farmacéutico que es seguro tomarlo con sus otros medicamentos.
No tome nunca más de la dosis prescrita. Si sospecha que usted u otra persona ha tomado una sobredosis de este medicamento, acuda al servicio de urgencias de su hospital. Llévese el envase, aunque esté vacío.
Si va a someterse a una operación o a un tratamiento dental, comunique a la persona que lleve a cabo el tratamiento qué medicamentos está tomando.
Este medicamento es para usted. Nunca se lo dé a otras personas aunque su enfermedad parezca ser la misma que la suya.
No guarde medicamentos caducados o que no desee. Llévelos a su farmacia local, que se encargará de eliminarlos por usted.
Si tiene cualquier duda sobre este medicamento pregunte a su farmacéutico.
Informar de los efectos secundarios de un medicamento o vacuna
Si experimenta efectos secundarios, puede notificarlos en línea a través del sitio web de la Tarjeta Amarilla.
Lecturas complementarias y referencias
- Manufacturer's PIL, Spedra® 50 mg, 100 mg and 200 mg tablets; A. Menarini Farmaceutica Internazionale SRL, The electronic Medicines Compendium. Dated January 2021.
- Medicamentos BNF completa 89ª edición; Asociación Médica Británica y Real Sociedad Farmacéutica de Gran Bretaña, Londres.
Historia del artículo
La información de esta página ha sido redactada y revisada por médicos cualificados.
Fecha prevista para la próxima revisión: 10 feb 2027
20 Apr 2024 | Latest version

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