Take four capsules together, once a day.
Swallow the capsules whole with a drink of water.
|Type of medicine||An anti-androgen medicine|
|Used for||Advanced prostate cancer|
In some men with prostate cancer, the cancer cells spread to parts of the body other than the prostate. When this happens, it is referred to as late, advanced or metastatic prostate cancer. Treatment options for this type of cancer typically include hormone treatment, surgery, radiotherapy and chemotherapy.
Enzalutamide is a hormone treatment - it belongs to a group of medicines known as anti-androgens. It works by blocking the action of male hormones called androgens. Testosterone is an androgen. Prostate cancer cells need the male hormone testosterone to grow and multiply well. By blocking the action of androgens such as testosterone, enzalutamide slows the growth of the cancer cells.
Before taking enzalutamide
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 enzalutamide it is important that your doctor knows:
- If you have ever had a fit (seizure) or if you have been told you may be at risk of having a seizure.
- If you have heart or blood vessel problems.
- If you have any problems with the way your kidneys work or any problems with the way your liver works.
- 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.
- If you have ever had an allergic reaction to a medicine.
How to take enzalutamide
- Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about enzalutamide and will provide you with a full list of the side-effects which you may experience from taking it.
- Take enzalutamide exactly as your doctor tells you to. The usual dose is four 40 mg capsules taken together, once a day. Your dose will be printed on the label of the pack to remind you about what the doctor said to you.
- Take the capsules with a drink of water. Swallow the capsules whole - do not chew or open the capsules in order to swallow them.
- You can take your doses either before or after food, but try to take enzalutamide at the same time of day each day. This will help you to remember to take your doses regularly.
- If you do forget to take a dose, take it as soon as you remember. If you do not remember until the following day, skip the forgotten dose. Do not take two doses together to make up for a missed dose.
Getting the most from your treatment
- Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress.
- If you buy any medicines 'over the counter', always check with a pharmacist that they are suitable for you to take with your other medicines.
- If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking enzalutamide.
- Enzalutamide may harm an unborn child. This means that if you are having sex with a woman who could become pregnant, you must use a condom along with another effective birth control method. If you are having sex with a woman who is already pregnant, you must use a condom to protect the unborn child.
Can enzalutamide 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 enzalutamide. You will find a full list in the manufacturer's information leaflet supplied with your medicine. Speak with your doctor or pharmacist if you experience any symptoms which you think may be due to enzalutamide.
|Very common enzalutamide side-effects (these affect more than 1 in 10 men)||What can I do if I experience this?|
|Feeling tired or weak||Take a rest when needed. Do not use tools or machines while affected|
|Headache||Drink plenty of water and ask your pharmacist to recommend a suitable painkiller. If the headaches continue, let your doctor know|
|Feeling hot and flushed||Try to keep as cool as possible by wearing light and airy clothes|
|High blood pressure||Your doctor will be monitoring your progress and will check for this|
|Common enzalutamide side-effects (these affect less than 1 in 10 men)||What can I do if I experience this?|
|Feeling anxious, memory problems, itching, dry skin, falls, breast enlargement, an urge to move your legs||Speak with your doctor for advice|
If you experience any other symptoms which you think may be due to this medicine, speak with your doctor or pharmacist for further advice.
How to store enzalutamide
- Keep all medicines out of the reach and sight of children.
- Store in a cool, dry place, away from direct heat and light.
Important information about all medicines
Never take more than the prescribed dose. If you suspect that you or someone else might have taken an overdose of this medicine, go to the accident and emergency department of your local hospital. Take the container with you, even if it is empty.
This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.
Do not keep out-of-date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.
If you have any questions about this medicine ask your pharmacist.
Further reading and references
; Astellas Pharma Ltd, The electronic Medicines Compendium. Dated February 2018.
British National Formulary, 75th Edition (Mar 2018); British Medical Association and Royal Pharmaceutical Society of Great Britain, London.
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