Fludarabine (Fludara ®)
This information should ideally be read with our general information about chemotherapy and the type of cancer you have.
How fludarabine is given
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You will be given fludarabine in the chemotherapy day unit or during a stay in hospital. A chemotherapy nurse will give it to you. Fludarabine can be given in combination with other chemotherapy drugs. During treatment you usually see a cancer doctor, a chemotherapy nurse or a specialist nurse. This is who we mean when we mention doctor or nurse in this information.
Before or on the day of treatment, a nurse or person trained to take blood (phlebotomist) will take a blood sample from you. This is to check that it is okay for you to have chemotherapy.
You will also see a doctor or nurse before you have chemotherapy. They will ask you how you have been. If your blood results are all right on the day of your treatment, the pharmacist will prepare your chemotherapy. Your nurse will tell you when your treatment is likely to be ready.
Your nurse gives you anti-sickness drugs before you start. Fludarabine is then given in one of the following ways:
through a short thin tube (cannula), which the nurse puts into a vein in your arm or hand
through a fine tube that goes under the skin of your chest and into a vein close by (central line)
through a fine tube that is put into a vein in your arm and goes up into a vein in your chest (PICC line)
as tablets, which are swallowed.
Your nurse can give you fludarabine as a slow injection or drip (infusion) into your cannula or line. They usually run the drip through a pump, which usually gives you the treatment over 30 minutes.
When fludarabine is being given
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Some people might have side effects while they are having the chemotherapy.
Pain along the vein
If you have this tell your nurse straight away. They will check your drip site and slow the drip to ease the pain.
Taking your fludarabine tablets
If you are having fludarabine tablets, you will be able to take them at home. Always take your tablets exactly as instructed by your nurse or pharmacist. This is important to make sure they work as well as possible for you.
Swallow them whole with a glass of water either with food or on an empty stomach.
Other things to remember about your tablets:
Keep them in the original package at room temperature, away from heat and direct sunlight.
Keep them safe and out of the reach of children.
Return any remaining tablets to the pharmacist if your treatment is stopped.
Before you go home, the nurse or pharmacist will give you anti-sickness drugs to take. They may also give you other tablets, which they will talk to you about. Take all your tablets exactly as they have explained to you.
Your course of fludarabine
You have chemotherapy as a course of several sessions (or cycles) of treatment over a few months. Your doctor or nurse will tell you the number of cycles you are likely to have.
Possible side effects of fludarabine
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We explain the most common side effects of fludarabine here. But we don’t include all the rare ones that are unlikely to affect you.
You may get some of the side effects we mention, but you are very unlikely to get all of them. Always tell your doctor or nurse about the side effects you have. Your doctor can prescribe drugs to help control some of these.
It is very important to take the drugs exactly as your nurse or pharmacist has explained. This means they will be more likely to work better for you.
Your nurse will give you advice about managing your side effects. After your treatment is over, the side effects will start to improve.
Serious and life-threatening side effects
Sometimes cancer drugs can result in very severe allergic reactions, which rarely may be life-threatening. Your cancer doctor and nurse can explain the risk of these side effects to you.
Contact the hospital
Your nurse will give you telephone numbers for the hospital. You can call them if you feel unwell or need advice any time of day or night. Save these numbers in your phone or keep them somewhere safe.
We’re not able to list every side effect for this treatment here, particularly the rarer ones. For more detailed information you can visit the electronic Medicines Compendium.
Risk of infection
Fludarabine can reduce the number of white blood cells in your blood. This will make you more likely to get an infection. When the number of white blood cells is low, it’s called neutropenia. Your nurse can tell you when your white blood cells are likely to be at their lowest.
Contact the hospital straight away on the contact number you’ve been given if:
your temperature goes over 37.5°C (99.5°F) or over 38°C (100.4°F), depending on the advice given by your chemotherapy team
you suddenly feel unwell, even with a normal temperature
you have symptoms of an infection – this can include feeling shaky, a sore throat, a cough or needing to pass urine often.
You will have a blood test before having more chemotherapy. If your white blood cells are still low, your doctor may delay your treatment for a short time.
While taking fludarabine, you are at risk of developing a chest infection called pneumocystis. To help prevent this, your doctor will give you an antibiotic called co-trimoxazole (Septrin ®). You take it during treatment and for a few months after the treatment has finished. You may also be given other drugs to try to prevent infection.
Bruising and bleeding
This treatment can reduce the number of platelets in your blood. Platelets are cells that help the blood to clot. Tell your doctor if you have any bruising or bleeding you can’t explain. This includes nosebleeds, bleeding gums, blood spots or rashes on the skin. Some people may need a drip to give them extra platelets.
Anaemia (low number of red blood cells)
Fludarabine can reduce the number of red blood cells in your blood. These cells carry oxygen around the body. If the number of red blood cells is low, you may be tired and breathless. Tell your doctor or nurse if you feel like this. If you are very anaemic, you may need a drip to give you extra red blood cells (blood transfusion).
This may happen in the first few days after chemotherapy. Your doctor will prescribe anti-sickness (anti-emetic) drugs to help prevent or control sickness. Take the drugs exactly as your nurse or pharmacist explains to you. It’s easier to prevent sickness than to treat it after it has started.
If you still feel sick or are vomiting, contact the hospital as soon as possible. They can give you advice and change the anti-sickness drug to one that works better for you.
Loss of appetite
You may lose your appetite during your treatment. Try to eat small meals regularly. Don’t worry if you don’t eat much for a day or two. If your appetite doesn’t improve after a few days, let your nurse or dietitian know. They can give you advice on getting more calories and protein in your diet. They may give you food supplements or meal replacement drinks to try. Your doctor can prescribe some of these and you can buy them from chemists.
Your mouth may become sore and you may get ulcers. This can make you more likely to get an infection in your mouth. Gently clean your teeth and/or dentures morning and night and after meals. Use a soft-bristled or children’s toothbrush. Your nurse might ask you to rinse your mouth regularly or use mouthwashes. It’s important to follow any advice you are given and to drink plenty of fluids.
Tell your nurse or doctor if you have any problems with your mouth. They can prescribe medicines to prevent or treat mouth infections and reduce any soreness.
Feeling very tired is a common side effect. It’s often worse towards the end of treatment and for some weeks after it’s finished. Try to pace yourself and get as much rest as you need. It helps to balance this with some gentle exercise, such as short walks. If you feel sleepy, don’t drive or operate machinery.
Chemotherapy may affect your skin. Your doctor or nurse can tell you what to expect. If your skin feels dry, try using an unperfumed moisturising cream every day. Fludarabine can cause a rash, which may be itchy. Always tell your doctor or nurse about any skin changes. They can give you advice and may prescribe creams or medicines to help. Any changes to your skin are usually temporary and improve when treatment finishes.
Tell your doctor or nurse if you have headaches. They can give you painkillers to help.
Changes in the way the kidneys and liver work
Fludarabine can affect how your kidneys and liver work. This is usually mild and goes back to normal after treatment. You will have blood tests before chemotherapy to check how well your kidneys and liver are working.
Build-up of fluid
You may put on weight or your ankles and legs may swell because of fluid building up. Tell your doctor or nurse if fluid builds up. If your ankles and legs swell it can help to put your legs up on a foot stool or cushion. The swelling gets better after your treatment ends.
Numb or tingling hands or feet
These symptoms are caused by the effect of fludarabine on nerves. It’s called peripheral neuropathy. You may also find it hard to fasten buttons or do other fiddly tasks.
Tell your doctor if you have these symptoms. They sometimes need to lower the dose of the drug. The symptoms usually improve slowly after treatment finishes but in some people they may never go away. Talk to your doctor if you are worried about this.
Muscle and/or joint pain
You may get pain in your joints or muscles for a few days after chemotherapy. Tell your doctor if this happens so they can prescribe painkillers. Let them know if the pain does not get better. Try to get plenty of rest. Taking regular warm baths may help.
Fludarabine may cause blurry vision or eye pain. Always tell your doctor or nurse if you have eye pain or notice any change in your vision. Your eyes may also become more sensitive to light.
Less common side effects of fludarabine
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Changes in the way the heart works
Rarely fludarabine can affect the way the heart works.
If you notice changes to your heartbeat, feel breathless, or have pain or tightness in your chest at any time during or after treatment, tell a doctor straight away. These symptoms can be caused by other conditions but it’s important to get them checked by a doctor.
Effects on the lungs
Treatment can cause changes to the lungs. Always tell your doctor if you develop wheezing, a cough, or a fever or if you feel breathless. You should also let them know if any existing breathing problems get worse. If necessary, they can arrange for you to have tests to check your lungs.
Effects on the nervous system
Fludarabine can affect the nervous system. You may feel anxious or restless, have problems sleeping or experience mood changes. Some people feel drowsy or confused. Tell your doctor or nurse straight away if you notice any of these symptoms. It’s important not to drive or operate machinery if you notice these effects. Rarely, this drug can cause seizures (fits).
Raised levels of uric acid in the blood
Fludarabine may cause the leukaemia/cancer cells to break down quickly. This releases uric acid (a waste product) into the blood. Too much uric acid can cause swelling and pain in the joints, which is called gout.
Your doctor may give you tablets called allopurinol (Zyloric ®) to help prevent this. Drinking at least two litres of fluid a day will also help. You will have regular blood tests to check the uric acid levels.
Fludarabine can increase the risk of developing a second cancer years later. But the benefits of treatment usually far outweigh this risk. Your doctor can talk to you about this.
It is important to tell your doctor or nurse straight away if you feel ill or have severe side effects. This includes any we don’t mention here.
Other information about fludarabine
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After treatment with fludaribine any blood and platelets you are given should first be treated with radiation. This lowers the risk of the donated blood cells reacting against your own. It won’t damage the blood or make you radioactive.
Your doctor will record in your medical notes that you should only be given irradiated blood products. They’ll also give you a card to carry in case you’re treated at another hospital. Keep this card with you at all times and remind your hospital team that you need irradiated blood or platelets.
Blood clot risk
Cancer increases the chance of a blood clot (thrombosis) and chemotherapy can add to this. A clot can cause symptoms such as pain, redness and swelling in a leg, breathlessness and chest pain. Contact your doctor straight away if you have any of these symptoms. A blood clot is serious but your doctor can treat it with drugs that thin the blood. Your doctor or nurse can give you more information.
Some medicines can interact with chemotherapy or be harmful when you are having chemotherapy. This includes medicines you can buy in a shop or chemist. Tell your doctor about any medicines you are taking, including over-the-counter drugs, complementary therapies and herbal drugs.
Fludarabine may affect your fertility (being able to get pregnant or father a child). If you are worried about this, you can talk to your doctor or nurse before treatment starts.
Your doctor will advise you not to become pregnant or father a child during treatment. This is because the drugs may harm a developing baby. It’s important to use effective contraception during and for a few months after chemotherapy. You can talk to your doctor or nurse about this.
If you have sex within the first couple of days of having chemotherapy you need to use a condom. This is to protect your partner in case there is any chemotherapy in semen or vaginal fluid.
Women are advised not to breastfeed during treatment and for a few months after. This is in case there is chemotherapy in their breast milk.
Medical and dental treatment
If you need to go into hospital for any reason other than cancer, always tell the doctors and nurses that you are having chemotherapy. Explain you are taking chemotherapy tablets that no one should stop or restart without advice from your cancer doctor. Give them contact details for your cancer doctor.
Talk to your cancer doctor or nurse if you think you need dental treatment. Always tell your dentist you are having chemotherapy.
This page has been compiled using information from a number of reliable sources, including the electronic Medicines Compendium (eMC; medicines.org.uk). If you’d like further information on the sources we use, please feel free to contact us.
This information was reviewed by a medical professional.
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