Flutamida - un antiandrógeno para hombres
Revisado por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 14 Abr 2025
Cumple con las directrices editoriales
- DescargarDescargar
- Compartir
- Language
- Discusión
- Ask Patient
- Versión en audio
- Agregar a fuentes preferidas en Google
Treatment with flutamide will be started by a specialist doctor.
La dosis habitual es un comprimido tres veces al día.
Recuerda mantener tus citas regulares con tu médico y clínica para que se pueda monitorear tu progreso.
Selecciones de videos para Tratamiento del cáncer y medicamentosBiblioteca de videos
About flutamide
Tipo de medicamento | Un antiandrógeno |
Usado para | Cáncer de próstata |
Disponible como | Tabletas |
Flutamide belongs to a group of medicines known as anti-androgens. This means that it blocks the actions of male sex hormones called androgens. It also reduces the amount of male hormones (such as testosterone) that your body produces.
En cáncer de próstata, the cancer cells need the male hormone testosterone to grow and multiply well. Hormone treatments like flutamide block the effect of testosterone on prostate cancer cells. This slows down the growth of the cancer. Flutamide also helps to reduce symptom 'flares' and side-effects from other treatments which may be used for the cancer, or following surgery.
Before taking flutamide
Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking flutamide it is important that your doctor knows:
Si tienes algún problema con el funcionamiento de tu hígado.
Si tienes una afección cardíaca.
Si tienes un trastorno sanguíneo hereditario raro llamado porfiria.
Si está tomando otros medicamentos. Esto incluye cualquier medicamento que se pueda comprar sin receta, así como medicamentos herbales y complementarios.
Si alguna vez has tenido una reacción alérgica a un medicamento.
How to take flutamide
Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about flutamide and will provide you with a full list of the side-effects which you may experience from taking it.
Take the tablets exactly as your doctor tells you to. Your dose will be printed on the label of the pack of tablets to remind you about what the doctor said to you. It is usual to take one tablet three times a day.
You can take flutamide tablets either with or without food. Taking the tablet with a drink of water will help you to swallow it.
Try to take the tablets at the same times of day each day. This will help you to remember to take your doses regularly.
Si olvida tomar una dosis, tómela tan pronto como lo recuerde (a menos que esté cerca la hora de su próxima dosis, en cuyo caso omita la dosis olvidada). No tome dos dosis juntas para compensar una dosis olvidada.
Obteniendo el máximo de tu tratamiento
Please keep your regular appointments with your doctor so that your progress can be monitored. Your doctor will want you to have some blood tests from time to time to check that your liver is staying healthy.
Your doctor will recommend that you do not drink much alcohol while you are on flutamide.
Treatment with flutamide is often long-term. You should continue to take the tablets regularly unless you are told otherwise by your doctor.
Can flutamide 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 flutamide. 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.
Very common flutamide side-effects (these affect more than 1 in 10 men) | ¿Qué puedo hacer si experimento esto? |
Breast swelling or tenderness (possibly with a discharge) | Si esto se vuelve problemático, hable con su médico |
Common flutamide side-effects (these affect fewer than 1 in 10 men) | ¿Qué puedo hacer si experimento esto? |
Sentirse mal (náuseas) o estar enfermo (vómitos), diarrea | Eat simple meals - avoid fatty or spicy foods |
Tiredness, difficulty sleeping, increased appetite | Si alguno de estos se vuelve problemático, hable con su médico |
Liver problems (for the symptoms please see below) | Contact your doctor straightaway |
Importante: if you notice any of the following you should contact your doctor straightaway as it could be a sign of a problem with your liver:
Dark urine or light-coloured stools.
Estar enfermo (vómitos)
Pain in your tummy (abdomen).
Any yellowing of your skin or the whites of your eyes (jaundice).
Itchy skin or unexplained bruising.
Pérdida de apetito.
Any unexplained flu-like symptoms.
Sintiéndose inusualmente cansado o generalmente mal.
Si experimenta cualquier otro síntoma que crea que puede deberse a las tabletas, por favor hable con su médico o farmacéutico para obtener más consejos.
How to store flutamide
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
If you buy any medicines, check with a pharmacist that they are safe to take with your prescribed medicines.
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.
Si vas a someterte a una operación o tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás tomando.
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, donde se encargarán 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.
Preguntas frecuentes
How does flutamide work to slow down prostate cancer?
Flutamide works in two main ways. Firstly, it blocks the actions of male sex hormones, specifically androgens, on prostate cancer cells. Secondly, it reduces the overall amount of male hormones, such as testosterone, that your body produces. Since prostate cancer cells need testosterone to grow and multiply, blocking and reducing these hormones slows the cancer's growth.
Can flutamide help with side-effects from other prostate cancer treatments?
Yes, flutamide can help to reduce symptom 'flares' and side-effects that might arise from other treatments used for prostate cancer, or following surgery.
Why do I need blood tests while taking flutamide?
Regular blood tests are important while you are taking flutamide. Your doctor will use these tests to monitor your progress and specifically to check that your liver is remaining healthy, as liver problems can be a side-effect of this medication.
What should I do if I notice my urine is dark or stools are light-coloured?
If you notice dark urine or light-coloured stools, you should contact your doctor straightaway. These could be signs of a problem with your liver, which needs immediate medical attention.
Is it okay to take other medicines, including over-the-counter ones, with flutamide?
Before you start taking flutamide, it is important to inform your doctor about all other medicines you are taking. This includes any medicines bought without a prescription, as well as herbal and complementary medicines, to ensure they are safe to take together.
Lecturas adicionales y referencias
- Manufacturer's PIL, Flutamide 250 mg tablets; Generics [UK] Ltd t/a Mylan, The electronic Medicines Compendium. Dated August 2020.
- Medicamentos Completo BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
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.
Suscríbete al boletín de Patient
Tu dosis semanal de consejos de salud claros y confiables, escritos para ayudarte a sentirte informado, seguro y en control.
Al suscribirte aceptas nuestros Política de Privacidad. Puedes darte de baja en cualquier momento. Nunca vendemos tus datos.
Más sobre el tratamiento del cáncer y medicamentos
- Abiraterona para el cáncer de próstata
- Bicalutamida - un antiandrógeno para hombres
- Tabletas de Busulfan
- Tabletas de Capecitabina
- Ciclofosfamida
- Ciproterona - un antiandrógeno para hombres
- Tabletas de Erlotinib
- Estramustina para el cáncer de próstata
- Fluorouracilo para piel dañada por el sol
- Implante de Goserelina
- Tabletas de imatinib
- Tabletas de Lapatinib
- Letrozol para el cáncer de mama
- Tabletas de Melphalan
- Mercaptopurina
- Cápsulas de Sunitinib
- Temozolomida para el cáncer cerebral
- Tioguanina
- Treosulfano
- Tabletas de vandetanib


