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Bicalutamide - an anti-androgen for men

Casodex

Treatment with bicalutamide will be started by a specialist doctor.

The usual dose is one tablet daily (either 50 mg or 150 mg).

Remember to keep your regular appointments with your doctor and clinic so that your progress can be monitored.

At a glance

  • Bicalutamide is an anti-androgen medicine used to treat prostate cancer in adult men.

  • It works by blocking male hormones that cancer cells need to grow.

  • The usual dose is one tablet daily, taken at the same time each day.

  • Common side-effects include feeling weak, hot flushes, and breast swelling.

  • Speak to your doctor if you experience yellowing skin or blood in your urine.

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About bicalutamide

Typ av medicin

An anti-androgen

Används för

Treatment of prostate cancer in adult men

Även kallad

Casodex®

Tillgänglig som

Tabletter

Bicalutamide belongs to a group of medicines known as anti-androgens. This means that it blocks the actions of male sex hormones called androgens and it also reduces the amount of male hormones (such as testosterone) that your body produces.

In prostatacancer, the cancer cells need the male hormone testosterone to grow and multiply well. Hormone treatments like bicalutamide block the effect of testosterone on prostate cancer cells. This slows down the growth of the cancer. Bicalutamide also helps to reduce symptom 'flares' and side-effects from other treatments which may be used for the cancer, or following surgery.

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 bicalutamide it is important that your doctor knows:

  • If you have any problems with the way your liver works.

  • Om du tar eller använder några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.

  • Om du någonsin har haft en allergisk reaktion mot en medicin.

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  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about bicalutamide and will provide you with a full list of the side-effects which you may experience from taking it.

  • Take bicalutamide 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. The usual dose is one tablet each day. There are two strengths of tablet available: 50 mg and 150 mg. The strength of tablet that you are prescribed will depend on whether you are also having other treatments.

  • You can take bicalutamide tablets either before or after meals. Taking the tablet with a drink of water will help you to swallow it.

  • Try to take the tablet 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 at your usual time, take it when you remember. If you do not remember until the following day then leave out the forgotten dose and take your next dose when it is due. Do not take two doses on the same day to make up for a missed dose.

  • Please keep your regular appointments with your doctor. Your doctor may want you to have some blood tests from time to time to check that your liver is staying healthy.

  • Treatment with bicalutamide is often long-term. You should continue to take the tablets regularly unless you are told otherwise by your doctor.

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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 bicalutamide. 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 bicalutamide side-effects (these affect more than 1 in 10 men)

Vad kan jag göra om jag upplever detta?

Feeling weak, tired or dizzy

Kör inte och använd inte verktyg eller maskiner när du är påverkad

Rash, breast swelling or tenderness, hot flushes

Om det är besvärligt, prata med din läkare

Feeling sick (nausea), indigestion, tummy (abdominal) pain

Eat simple meals - avoid rich or spicy foods

Common bicalutamide side-effects (these affect fewer than 1 in 10 men)

Vad kan jag göra om jag upplever detta?

Förstoppning

Eat a well-balanced diet and drink several glasses of water each day

Feeling depressed, itchy dry skin, changes in hair thickness, reduced sex drive, erectile dysfunction,

loss of appetite, swollen ankles, increased weight, chest pain

Om något av dessa blir besvärligt, tala med din läkare

Yellowing of your skin or the whites of your eyes, stomach discomfort or pain that does not go away quickly

Speak with your doctor as soon as possible. These can be signs that your liver is being affected

Blood in your urine

Speak with your doctor as soon as possible so that this can be investigated

Viktigt: bicalutamide can sometimes cause other side-effects such as breathing problems and allergic reactions. Although these occur less commonly than the ones listed above, they are symptoms that you should tell your doctor about as soon as possible.

If you experience any other symptoms which you think may be due to the tablets, please speak with your doctor or pharmacist for further advice.

  • Förvara alla läkemedel utom räckhåll och synhåll för barn.

  • Förvara på en sval, torr plats, borta från direkt värme och ljus.

Viktig information om alla läkemedel

Ta aldrig mer än den föreskrivna dosen. Om du misstänker att du eller någon annan kan ha tagit en överdos av denna medicin, gå till akutmottagningen på ditt lokala sjukhus. Ta med behållaren, även om den är tom.

This medicine is for you. Do not give it to other people even if their condition appears to be the same as yours.

If you are due to have an operation or dental treatment, please tell the person carrying out the treatment which medicines you are taking.

Om du köper några läkemedel, kontrollera med en apotekare att de är lämpliga att ta tillsammans med dina andra läkemedel.

Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.

Om du har några frågor om denna medicin, fråga din apotekare.

Rapportera biverkningar av ett läkemedel eller vaccin

Om du upplever biverkningar kan du rapportera dem online via Yellow Card website.

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Vanliga frågor

What is the main purpose of bicalutamide in treating prostate cancer?

Bicalutamide is an anti-androgen medicine that works by blocking the actions of male sex hormones, such as testosterone. Since prostate cancer cells need testosterone to grow, blocking its effect helps to slow down the growth of the cancer. It also assists in reducing symptom flares and side-effects from other treatments or after surgery.

Are there different strengths of bicalutamide, and how does my doctor decide which one to prescribe?

Yes, bicalutamide is available in two strengths: 50 mg and 150 mg tablets. The strength your doctor prescribes will depend on whether you are also receiving other treatments for your prostate cancer.

How often will I need to see my doctor while taking bicalutamide?

You should keep your regular appointments with your doctor. They may ask you to have blood tests periodically to check that your liver remains healthy, as bicalutamide can sometimes affect liver function.

What should I do if I experience persistent stomach discomfort or yellowing of my skin?

You should speak with your doctor as soon as possible if you experience yellowing of your skin or the whites of your eyes, or stomach discomfort or pain that does not go away quickly. These symptoms could indicate that your liver is being affected by the medicine.

Can bicalutamide cause any serious side-effects that I should be aware of, even if they are rare?

While less common than other side-effects, bicalutamide can sometimes cause breathing problems and allergic reactions. If you experience either of these, you should tell your doctor about them as soon as possible.

If I need to have an operation or dental work, should I mention that I am taking bicalutamide?

Yes, it is important to inform the person carrying out the treatment, whether it's an operation or dental work, about all the medicines you are taking, including bicalutamide.

Is it safe to take herbal medicines or over-the-counter products with bicalutamide?

Before starting bicalutamide, it's important to tell your doctor about all other medicines you are taking, including those bought without a prescription, as well as herbal and complementary medicines. This is because some medicines are not suitable to be taken together.

Vidare läsning och referenser

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About the authorView full bio

Author image

Michael Stewart, MRPharmS

Medicine Leaflet Review Manager – Contractor, Pharmacist

BPharm (Hons), MRPharmS

Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.

About the reviewer

Author image

Sid Dajani

Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.

Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.

  • Nästa granskning: 12 sept 2027
  • 14 sept 2024 | Senaste versionen

    Senast uppdaterad av

    Michael Stewart, MRPharmS

    Granskad av

    Sid Dajani
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