Alfuzosina para el agrandamiento de la glándula prostática
Xatral
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 11 May 2024
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Your first dose of alfuzosin may make you feel dizzy or faint, or start sweating.
Take your first tablet at bedtime and remain lying down until these symptoms have completely passed.
Alfuzosin can cause dizziness which may affect your ability to drive. Make sure your reactions are normal before you drive and before you use tools or machines.
De un vistazo
Alfuzosin is a medicine that helps men with an enlarged prostate gland to pass urine more easily.
It comes in immediate-release and prolonged-release tablets.
Take your first dose just before bed as it can make you dizzy.
Take prolonged-release tablets with food and at the same time each day.
Do not drink alcohol or drive if you feel dizzy while taking alfuzosin.
Tell your doctor if you are having cataract surgery while taking this medicine.
Common side-effects include tiredness, dizziness, and feeling light-headed.
About alfuzosin
Tipo de medicamento | Un bloqueador alfa |
Usado para | Enlargement of the prostate gland in men |
También llamado | Tablets: Xatral® |
Disponible como | Tablets and prolonged-release tablets |
La glándula prostática comúnmente se agranda en los hombres mayores. El agrandamiento de la glándula prostática también se llama hiperplasia prostática benigna (HPB). 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.
Alfuzosin works by relaxing the muscles around your bladder and prostate gland so that you can pass urine more easily. There are two types of alfuzosin tablets available - immediate-release tablets and prolonged-release tablets. Immediate-release tablets need to be taken several times a day (typically, three times daily). Prolonged-release tablets are taken once a day as they release alfuzosin slowly throughout the day.
Before taking alfuzosin
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 alfuzosin it is important that your doctor knows:
Si alguna vez te sientes mareado o débil al levantarte, o si alguna vez te has desmayado después de orinar.
If you need to have cataract eye surgery.
If you have any liver, kidney, or heart problems.
Si alguna vez has tenido una reacción alérgica a un medicamento.
Si está tomando o usando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que esté disponible para comprar sin receta, así como medicamentos herbales y complementarios.
How to take alfuzosin
Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about alfuzosin and will provide you with a full list of the side-effects which you may experience from taking it.
Take alfuzosin exactly as your doctor tells you to. Swallow the tablet whole with a drink of water - do not break or chew the tablet.
Your first dose of alfuzosin may make you feel dizzy or faint, so it is important that you take it just before you go to bed. If you feel dizzy or weary, or if you start sweating, remain lying down until these symptoms have completely gone.
If you have been given immediate-release tablets (2.5 mg strength), the usual dose is one tablet three times each day, although this can vary. Your doctor will tell you what dose is right for you, and the directions will also be printed on the label of the pack of tablets to remind you about what the doctor said to you.
If you have been given prolonged-release tablets (these have 'XL' after the brand name), take one tablet every day. Take the tablet with a snack or just after eating a meal. After the first dose, you can take your dose at a time of day that best suits you, but try to take your doses at the same time of day each day. This will help you to remember to take the tablets regularly.
If you forget to take a dose, do not worry, just take the next dose when it is due and then carry on as before. Do not take two doses together to make up for a forgotten dose.
Obteniendo el máximo de tu tratamiento
Alfuzosin can cause dizziness particularly when you first start taking it. This may affect your ability to drive. Make sure your reactions are normal before you drive or do things which would be dangerous if you were not fully alert.
Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. Your doctor may want to take your blood pressure from time to time, particularly when you first start the treatment.
You are advised not to drink alcohol while you are on alfuzosin. Alcohol increases the risk of side-effects from alfuzosin, such as feeling faint or dizzy.
Consider reducing or stopping the amount of caffeine you drink (commonly found in tea, coffee and cola). Caffeine 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. You can ask your doctor for advice on quitting.
If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking alfuzosin. This is because your blood pressure may drop suddenly if you have an anaesthetic. If you are having cataract surgery, it is particularly important that you tell your surgeon you are on alfuzosin. This is because an eye problem known as 'floppy iris syndrome' has developed in some people and your doctor may advise you to stop taking alfuzosin for a short while.
Can alfuzosin 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 alfuzosin. 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 alfuzosin side-effects (these affect fewer than 1 in 10 men) | ¿Qué puedo hacer si experimento esto? |
Feeling tired, dizzy, faint, or weak | No conduzca ni utilice herramientas o máquinas mientras esté afectado |
Feeling light-headed when getting up from a lying or sitting position | Getting up more slowly may help. If you begin to feel dizzy, lie down so that you do not faint, then sit for a few moments to prevent the dizziness returning |
Boca seca | Intenta masticar chicle sin azúcar o chupar caramelos sin azúcar |
Dolor de cabeza | Bebe mucha agua y pide a tu farmacéutico que te recomiende un analgésico adecuado. Si los dolores de cabeza continúan, informa a tu médico |
Feeling sick (nausea), diarrhoea, tummy (abdominal) pain | Opta por alimentos sencillos. Bebe mucha agua para reponer los líquidos perdidos |
Si experimenta cualquier otro síntoma que crea que puede deberse a las tabletas, hable con su médico o farmacéutico para obtener más consejos.
How to store alfuzosin
Mantenga todos los medicamentos fuera del alcance y 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
Nunca tome más de la dosis prescrita. Si sospecha que usted u otra persona podría haber tomado una sobredosis de este medicamento, acuda al departamento de accidentes y emergencias de su hospital local. Lleve el envase con usted, incluso si está vacío.
If you buy any medicines, always check with a pharmacist that they are safe to take alongside your prescribed medicines.
Este medicamento es para ti. Nunca lo des a otras personas, incluso si su condición parece ser la misma que la tuya.
No guardes medicamentos caducados o no deseados. Llévalos a tu farmacia local, que se encargará de desecharlos por ti.
Si tienes alguna pregunta sobre este medicamento, consulta a tu farmacéutico.
Informar efectos secundarios de un medicamento o vacuna
Si experimenta efectos secundarios, puede reportarlos en línea a través de Sitio web de Yellow Card.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Preguntas frecuentes
What is the primary use of alfuzosin?
Alfuzosin is typically prescribed for men who have an enlarged prostate gland, a condition also known as benign prostatic hyperplasia (BPH). Its purpose is to alleviate problems with passing urine caused by the enlarged prostate.
Are there different forms of alfuzosin tablets?
Yes, there are two types of alfuzosin tablets: immediate-release and prolonged-release. Immediate-release tablets usually need to be taken several times a day, while prolonged-release tablets (often marked with 'XL' after the brand name) are taken once daily because they release the medication slowly over time.
What should I do if I experience dizziness after taking alfuzosin?
Alfuzosin can cause dizziness, especially when you first start taking it. If you feel dizzy or weary, or if you start sweating, you should lie down until these symptoms completely pass. It's also advised not to drive or operate machinery if your reactions are affected.
Can I drink alcohol while taking alfuzosin?
It is recommended not to drink alcohol while using alfuzosin. Alcohol can increase the risk of side-effects such as feeling faint or dizzy.
Why is it important to tell my doctor I take alfuzosin before cataract eye surgery?
It is particularly important to inform your surgeon if you are taking alfuzosin if you are having cataract surgery. This is because an eye condition called 'floppy iris syndrome' has been observed in some patients, and your doctor might advise you to temporarily stop taking alfuzosin.
How should I store alfuzosin?
Alfuzosin, like all medicines, should be kept out of the reach and sight of children. Store it in a cool, dry place, away from direct heat and light.
What should I do if I think I've taken too much alfuzosin?
If you suspect that you or someone else has taken more than the prescribed dose of alfuzosin, you should go to the accident and emergency department of your local hospital immediately. Remember to take the medicine container with you, even if it's empty.
Lecturas adicionales y referencias
- Manufacturer's PIL, Alfuzosin 2.5 mg Tablets; Zentiva, The electronic Medicines Compendium. Dated March 2021.
- Manufacturer's PIL, Xatral® XL 10 mg prolonged-release tablets; Sanofi, The electronic Medicines Compendium. Dated September 2020.
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
Sobre el autorVer biografía completa

Michael Stewart, MRPharmS
Gerente de Revisión de Folletos de Medicamentos – Contratista, Farmacéutico
BPharm (Hons), MRPharmS
Michael es un farmacéutico comunitario que ejerce en Midlands y South Yorkshire con más de 20 años de experiencia asesorando sobre medicamentos y condiciones médicas. Tiene una sólida formación en capacitación en atención médica, habiendo producido e impartido cursos de formación para equipos de farmacia y personal de entornos de atención residencial, incluidas enfermeras. También ha contribuido a juntas asesoras de farmacia para la gestión de condiciones de baja gravedad en la comunidad.
Acerca del revisor

Sid Dajani
Sultan Dajani se graduó en la Escuela de Farmacia de Londres en 1994 y se convirtió en el miembro más joven elegido para el consejo de la Sociedad Real de Farmacia desde su fundación en 1842.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Artículo también disponible en Inglés, Alemán, Español, Francés, Italiano, Portugués, Hindi, Hebreo, Árabe, y Sueco.
Próxima revisión: 31 Mar 2027
11 May 2024 | Última versión

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