FOLFIRINOX (or FOLFOXIRI)

FOLFIRINOX (or FOLFOXIRI) is a combination treatment used to treat pancreatic cancer and bowel cancer. It may also be used to treat other cancers.

It is best to read this information as well as our general information about chemotherapy and the type of cancer you have. 

FOLFIRINOX is given into a vein. You usually have it as an outpatient. Your cancer doctor or nurse will tell you how often you will have it.

Chemotherapy can cause side effects. Some of the side effects can be serious, so it is important to read the detailed information below.

Your healthcare team can give you advice on how to manage any side effects. Tell your doctor or nurse straight away if you:

  • have a temperature
  • feel unwell
  • have severe side effects, including any we do not mention here.

Rarely, side effects may be life-threatening. Your cancer doctor or nurse can explain the risk of these side effects to you.

If you need medical attention for any reason other than cancer, always tell the healthcare staff that you are having this treatment.

What is FOLFIRINOX (FOLFOXIRI)?

FOLFIRINOX (or FOLFOXIRI) is a combination treatment used to treat pancreatic cancer and bowel cancer. It may also be used to treat other cancers.

It is best to read this information as well as our general information about chemotherapy and the type of cancer you have. 

FOLFIRINOX and FOLFOXIRI are different names for the same combination of chemotherapy drugs. They are named after the initials of the drugs used for treatment. The drugs are:

When these drugs are used to treat pancreatic cancer, they are called FOLFIRINOX. When they are used to treat bowel cancer, they are usually called FOLFOXIRI.

In this information, we call fluorouracil by its more common name, 5FU. Folinic acid is sometimes called calcium folinate or leucovorin.

Folinic acid is not a chemotherapy drug, but is often given with 5FU to make it work better.


How FOLFIRINOX (FOLFOXIRI) is given

You will be given FOLFIRINOX (or FOLFOXIRI) in the chemotherapy day unit or during a stay in hospital. A chemotherapy nurse will give it to you. It can be given in combination with other cancer 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 your blood cells are at a safe level to have chemotherapy.

You will see a doctor or nurse before you have chemotherapy. They will ask you how you have been feeling. If your blood results are okay, the pharmacist will prepare your chemotherapy. Your nurse will tell you when your treatment is likely to be ready.

Your nurse usually gives you anti-sickness (anti-emetic) drugs before the chemotherapy. The chemotherapy drugs can be given through:

  • a short, thin tube the nurse puts into a vein in your arm or hand (cannula)
  • a fine tube that goes under the skin of your chest and into a vein close by (central line)
  • a fine tube that is put into a vein in your arm and goes up into a vein in your chest (PICC line).

Your nurse will give you oxaliplatin first as a drip (infusion) over two hours. They usually run this through a pump, which gives it over a set time. After this, you will have folinic acid as a drip over two hours. Some people are given folinic acid at the same time as oxaliplatin.

Irinotecan is usually given as a drip that begins 30 minutes after the folinic acid is started. Sometimes the irinotecan is not given until the folinic acid has finished. The first time you have irinotecan it will be given over 90 minutes. After this, it may be given over a shorter time of about 30 minutes.

5FU is given after the irinotecan. Your nurse will give some 5FU as an injection into your line. Then the rest of the 5FU is given to you over about 46 hours. This is usually given through a small pump that you carry on a belt or in a holder. You will be able to go home once the pump is connected to your line and has been started.

You may come back to the hospital to have the pump disconnected. Sometimes a district nurse will do this for you at home. Your chemotherapy nurse will explain how to look after the pump. They can also tell you what to do if there is a problem.

If you have a cannula, you will need to stay in hospital to have the 5FU.

Your course of chemotherapy

You usually have a course of several cycles of treatment over a few months. Your nurse or doctor will discuss your treatment plan with you.

Going home

Before you go home, the nurse or pharmacist will give you anti-sickness (anti-emetic) drugs to take. They may also give you anti-diarrhoea tablets if you need them. Take all your tablets exactly as they have been explained to you.

Having your PICC line put in

This is a short animation about having a PICC line (Peripherally inserted central catheter) put in.

About our cancer information videos

Having your PICC line put in

This is a short animation about having a PICC line (Peripherally inserted central catheter) put in.

About our cancer information videos

Having your central line put in

This is a short animation about how you can have a central line (or skin-tunnelled venous catheter) put in.

About our cancer information videos

Having your central line put in

This is a short animation about how you can have a central line (or skin-tunnelled venous catheter) put in.

About our cancer information videos


About side effects

We explain the most common side effects of this treatment here. We also include some less common side effects.

You may get some of the side effects we mention, but you are unlikely to get all of them. If you are also having treatment with other cancer drugs, you may have some side effects that we haven’t listed here. Always tell your doctor, nurse or pharmacist about any side effects you have.

Your doctor can give you drugs to help control some side effects. It is important to take them exactly as your nurse or pharmacist explains. This means they will be more likely to work for you. Your nurse will give you advice about managing your side effects. After your treatment is over, most side effects start to improve.

Serious and life-threatening side effects

Some cancer treatments can cause severe side effects. Rarely, these may be life-threatening. Your cancer doctor or nurse can explain the risk of these side effects to you.

Rarely, fluorouracil can cause severe side effects in people who have low levels of an enzyme called DPD. This is called having a DPD deficiency. You will not know before you start treatment whether you have a DPD deficiency as there are no symptoms. There is a test available but it only tests for the more common types of DPD deficiency. This means that the test will detect most cases of DPD deficiency but not all cases. The test is not widely available on the NHS. Talk to your doctor if you are worried about having a DPD deficiency.

Contact the hospital

Your nurse will give you telephone numbers for the hospital. If you feel unwell or need advice, you can call them at any time of the day or night. Save these numbers in your phone or keep them somewhere safe.

More information

We cannot list every side effect for this treatment. There are some rare side effects that are not listed. You can visit the electronic Medicines Compendium (eMC) for more detailed information.


Side effects during treatment

Some people may have side effects while they are being given the chemotherapy or shortly after they have it:

Allergic reaction

Some people have an allergic reaction while having this treatment. Signs of a reaction can include:

  • feeling hot or flushed 
  • a skin rash
  • itching
  • shivering
  • feeling dizzy
  • a headache
  • feeling breathless 
  • swelling of your face or mouth
  • pain in your back, tummy or chest.

Your nurse will check you for signs of a reaction during your treatment. If you feel unwell or have any of these signs, tell them straight away. If you do have a reaction, it can be treated quickly.

Sometimes a reaction can happen a few hours after treatment. If you get any signs or feel unwell after you get home, contact the hospital straight away.

Pain along the vein

Oxaliplatin can cause pain at the place where the injection is given or along the vein. If you feel pain, tell your nurse or doctor straight away so that they can check the site. They may give the drug more slowly or flush it through with more fluid to reduce pain.

Irinotecan reaction (acute cholinergic syndrome)

Some people may have side effects within 24 hours of having irinotecan. These include:

  • diarrhoea
  • tummy cramps
  • sweating more than usual
  • producing a lot of saliva.

This is called acute cholinergic syndrome.

It can usually be prevented or controlled by a drug called atropine. Your nurse gives you atropine as an injection under the skin (subcutaneously). Contact your doctor or nurse if you have any of these symptoms.

Laryngeal spasm

Rarely, oxaliplatin can affect the area around the voicebox (larynx). This can cause difficulties with swallowing and breathing. This might happen during treatment or in the first few days after treatment. This side effect can be very frightening, but it should only be temporary. If you have breathing difficulties, take long, deep breaths through your nose. This will have a calming effect and help your breathing return to normal.

This symptom may be worse in cold temperatures, so it’s advisable to avoid cold drinks and ice cubes during treatment and for a few days afterwards. It might also help to wrap up warm and cover your nose and mouth in cold weather.

It’s important to let your doctor know if you have this side effect. Your doctor may increase the time of your infusion to 4 to 6 hours in future cycles, which will reduce the chance of it happening again.


Common side effects of FOLFIRINOX

Risk of infection

This treatment can reduce the number of white blood cells in your blood. These cells fight infection. If the number of white blood cells is low, you are more likely to get an infection. A low white blood cell count is called neutropenia.

If you have an infection, it is important to treat it as soon as possible. Contact the hospital straight away on the 24-hour contact number you have if:

  • your temperature goes over 37.5°C (99.5°F)
  • you suddenly feel unwell, even with a normal temperature
  • you have symptoms of an infection.

Symptoms of an infection include:

  • feeling shivery
  • a sore throat
  • a cough
  • diarrhoea
  • needing to pass urine often.

It is important to follow any specific advice your cancer treatment team gives you.

The number of white blood cells will usually return to normal before your next treatment. You will have a blood test before having more treatment. If your white blood cell count is low, your doctor may delay your treatment for a short time.

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 that you cannot explain. This includes:

  • nosebleeds
  • bleeding gums
  • tiny red or purple spots on the skin that may look like a rash.

Some people may need a drip to give them extra platelets. This is called a platelet transfusion.

Anaemia (low number of red blood cells)

This treatment 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. This is called a blood transfusion.

Diarrhoea

This treatment may cause severe diarrhoea. Your nurse or doctor may give you anti-diarrhoea drugs to take at home.

If you have diarrhoea:

  • follow any advice you have been given about taking anti-diarrhoea drugs
  • drink at least 2 litres (3½ pints) of fluids each day
  • avoid alcohol, caffeine, milk products, high-fat foods and high-fibre foods.

Contact the hospital straight away if:

  • you have diarrhoea at night
  • you have diarrhoea more than 6 times in a day
  • the anti-diarrhoea drugs do not work within 24 hours.

Some people may need to go to hospital to have fluids through a drip. You may need to take antibiotics.

Feeling sick

You may feel sick in the first few days after this treatment. Your doctor will give you anti-sickness drugs to help prevent or control sickness. Take the drugs exactly as your nurse or pharmacist tells you. It is easier to prevent sickness than to treat it after it has started.

If you feel sick, take small sips of fluids and eat small amounts often. If you continue to feel sick, or if you vomit more than once in 24 hours, contact the hospital as soon as possible. They will give you advice and may change the anti-sickness drug to one that works better for you.

Sore mouth

You may get a sore mouth or mouth ulcers. This can make you more likely to get a mouth infection. Use a soft toothbrush to clean your teeth or dentures in the morning, at night and after meals.

If your mouth is sore:

  • tell your nurse or doctor – they can give you a mouthwash or medicines to help
  • try to drink plenty of fluids
  • avoid alcohol, tobacco, and foods that irritate your mouth.

Changes to your taste

You may get a bitter or metal taste in your mouth. Sucking sugar-free sweets may help with this. Some foods may taste bad or have no taste. Try different foods to find out what tastes best to you. Taste changes usually get better after treatment finishes. Your nurse can give you more advice.

Feeling tired

Feeling tired is a common side effect. It is often worse towards the end of treatment and for some weeks after it has finished. Try to pace yourself and plan your day so you have time to rest. Gentle exercise, like short walks, can give you more energy. If you feel sleepy, do not drive or operate machinery.

Hair loss

Your hair will get thinner or you may lose all the hair from your head. You may also lose your eyelashes, eyebrows or other body hair. Hair loss usually starts after your first or second treatment.

Your nurse can talk to you about ways to cope with hair loss. There are ways to cover up hair loss if you want to. It is important to cover your head to protect your scalp when you are out in the sun.

Hair loss is almost always temporary and your hair will usually grow back after treatment ends.

Numb or tingling hands or feet (peripheral neuropathy)

This treatment affects the nerves, which can cause numb, tingling or painful hands or feet. You may find it hard to fasten buttons or do other fiddly tasks.

Cold temperatures can make symptoms worse. Wear gloves outside in cold weather or if you need to touch things that are cold.

Tell your doctor if your hands or feet are affected. They may need to lower the dose of oxaliplatin. The symptoms usually improve slowly after treatment finishes, but for some people they may never go away. Talk to your doctor if you are worried about this.

Soreness and redness of palms of hands and soles of feet

This is called palmar-plantar or hand-foot syndrome. It gets better when treatment ends. Your doctor or nurse can give you advice and prescribe creams to improve the symptoms. It can help to keep your hands and feet cool and to avoid heat, hot water and tight-fitting socks, shoes and gloves.

Skin changes

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.

During treatment and for several months afterwards, you will be more sensitive to the sun and your skin may burn more easily than usual. You can still go out in the sun, but use a sun cream with a sun protection factor (SPF) of at least 30, and cover up with clothing and a hat.

Your skin may darken. It will return to its normal colour after you finish treatment. 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.

Eye problems

This treatment may make your eyes feel sore, red and itchy (conjunctivitis). Your doctor will prescribe eye drops to help prevent this. It is important to use these as you are told to.

This treatment may also make your eyes more sensitive to light and cause blurry vision. If you have pain or notice any change in your vision, always tell your doctor or nurse.


Less common side effects of FOLFIRINOX

Effects on the liver

This treatment may cause changes in the way your liver works. You are very unlikely to notice any problems. Your doctor will take regular blood samples to check how your liver is working.

Rarely treatment can cause:

  • skin or the whites of eyes to turn yellow (jaundice)
  • a swollen tummy (abdomen)
  • vomiting with blood in it.

Tell your doctor straight away if you notice any of these symptoms.

Effects on the lungs

This treatment can cause changes to the lungs. Tell your doctor if you develop: 

  • a cough
  • wheezing
  • a fever (high temperature)
  • breathlessness.

You should also tell them if any existing breathing problems get worse. You may have tests to check your lungs.

Effects on the heart

This treatment can affect the way the heart works. You may have tests to see how well your heart is working. These may be done before, during, and sometimes after treatment. If the treatment is causing heart problems, your doctor can change the type of treatment you are having.

Contact a doctor straight away if you:

  • have pain or tightness in your chest
  • feel breathless or dizzy
  • feel your heart is beating too fast or too slowly.

Other conditions can cause these symptoms, but it is important to get them checked by a doctor.


Other information

Blood clot risk

Cancer and some cancer treatments can increase the risk of a blood clot. Symptoms of a blood clot include:

  • pain, redness or swelling in a leg or arm
  • breathlessness
  • chest pain. 

If you have any of these symptoms, contact a doctor straight away. 

A blood clot is serious, but can be treated with drugs that thin the blood. Your doctor or nurse can give you more information.

Other medicines

Some medicines can affect chemotherapy or be harmful when you are having it. This includes medicines you can buy in a shop or chemist. Tell your cancer doctor about any drugs you are taking, including vitamins, herbal drugs and complementary therapies.

Fertility

Some chemotherapy drugs can affect whether you can get pregnant or father a child.

If you are a woman, your periods may become irregular or stop. This may be temporary, but for some women it is permanent. Your menopause may start sooner than it would have done.

There may be ways to preserve fertility for men and women. If you are worried about fertility, it is important to talk with your doctor before you start chemotherapy treatment.

Contraception

Your doctor will advise you not to get pregnant or father a child while having this treatment. The drugs may harm the developing baby. It is important to use effective contraception.

Sex

If you have sex in the first few days after chemotherapy, you need to use a condom. This is to protect your partner in case there is any chemotherapy in semen or vaginal fluids.

Breastfeeding

Women are advised not to breastfeed while having this treatment and for some time afterwards. This is because the drugs could be passed to the baby through breast milk.

Medical and dental treatment

If you need medical treatment for any reason other than cancer, always tell the doctors and nurses that you are having cancer treatment. Give them the contact details for your cancer doctor so they can ask for advice.

If you think you need dental treatment, talk to your cancer doctor or nurse. Always tell your dentist you are having cancer treatment.