Cancer drugs A to Z list
Bleomycin is a type of chemotherapy drug. You pronounce it as blee-oh-my-sin.
It is a treatment for a number of different cancer types.
You might have bleomycin on its own or in combination with other cancer drugs.
Find out more about your cancer type
Bleomycin is a type of antibiotic that is poisonous to cells. This drug destroys quickly dividing cells such as cancer cells.
You might have bleomycin in the following ways:
You have the injection into a muscle, usually into your buttock or upper thigh.
You might have treatment through a long plastic tube that goes into a large vein in your chest. The tube stays in place throughout the course of treatment. This can be a:
central line
PICC line
portacath
You might have treatment through a thin short tube (a cannula) that goes into a vein in your arm. You have a new cannula each time you have treatment.
Some people may have bleomycin as an injection directly into a tumour.
Sometimes, bleomycin is injected through a tube into a body cavity in the chest or abdomen. This is called an intracavity injection. You usually only have this once or twice.
Bleomycin is often given as . This means you have the drug and then a rest to allow your body to recover.
The treatment plan depends on which type of cancer you have. You usually have bleomycin alongside other chemotherapy drugs as part of combination chemotherapy treatments.
Each cycle varies depending on what type of cancer you have. Your doctor or nurse will tell you more about this.
You have blood tests before and during your treatment. They check your levels of blood cells and other substances in the blood. They also check how well your liver and kidneys are working.
Side effects can vary from person to person. They also depend on what other treatments you're having.
Your doctor, nurse or pharmacist will go through the possible side effects. They will monitor you during treatment and check how you are at your appointments. Contact your advice line as soon as possible if:
you have severe side effects
your side effects aren’t getting any better
your side effects are getting worse
Early treatment can help manage side effects better.
We haven't listed all the side effects here. Talk to your healthcare team if you have any new symptoms that you think might be a side effect of your treatment.
Remember it is very unlikely that you will have all of these side effects. But you might have some of them at the same time.
We haven't listed all the side effects here. Remember it is very unlikely that you will have all of these side effects, but you might have some of them at the same time.
These side effects happen in more than 10 in 100 people (more than 10%). You might have one or more of them. They include:
You might develop a cough or breathing problems. This could be due to infection, such as pneumonia or inflammation of the lungs (pneumonitis). It might also be because of scarring on the lung (called fibrosis).
Less commonly you might develop a life-threatening breathing problem this is called acute respiratory distress syndrome (ARDS) or lung failure.
Let your team know straight away if you suddenly become breathless, have changes in your breathing, feel faint due to not being able to breath properly, feel drowsy or confused or are getting very tired.
Skin problems include reddening of the skin, stretch marks, blistering, itching and darker skin. Your skin might have areas of thickening and your fingertips might be tender or swell.
Less commonly you might have hardening of the skin or develop a raised itchy rash known as hives.
These symptoms usually goes back to normal when you finish treatment. Tell your nurse or doctor if these symptoms develop and they can give you medicine to help.
You could lose all your hair. This includes your eyelashes, eyebrows, underarms, legs and sometimes pubic hair. Your hair will usually grow back once treatment has finished but it is likely to be softer. It may grow back a different colour or be curlier than before.
You might lose your appetite for various reasons when you are having cancer treatment. Sickness, taste changes or tiredness can put you off food and drinks.
You might also lose weight
Feeling or being sick is usually well controlled with anti sickness medicines. It might help to avoid fatty or fried foods, eat small meals and snacks and take regular sips of water. Relaxation techniques might also help.
It is important to take anti sickness medicines as prescribed even if you don’t feel sick. It is easier to prevent sickness rather than treat it once it has started.
Mouth sores and ulcers can be painful. It helps to keep your mouth and teeth clean, drink plenty of fluids and avoid acidic foods such as lemons. Chewing gum can help to keep your mouth moist. Tell your doctor or nurse if you have ulcers.
These side effects happen in between 1 and 10 out of every 100 people (between 1 and 10%). You might have one or more of them. They include:
headaches
allergic reaction that can cause a rash, shortness of breath, redness or swelling of the face and dizziness - some allergic reactions can be life threatening, alert your nurse or doctor if notice any of these symptoms (whilst having treatment or soon afterwards)
blood clots that can be life threatening; signs are pain, redness and swelling where the clot is. Feeling breathless can be a sign of a blood clot in the lung. Contact your advice line or doctor straight away if you have any of these symptoms
high temperature (fever) and chills
feeling generally unwell (malaise)
fluid build in different parts of the body (oedema)
These side effects happen in fewer than 1 in 100 people (less than 1%). You might have one or more of them. They include:
low blood pressure symptoms might include feeling dizzy, sick, confused, feeling weak and tired
changes to passing urine such as passing to much or too little, retaining urine in your bladder or you might find it painful to pass urine
diarrhoea
changes to the way the liver works
pain in area of cancer
an autoimmune condition called scleroderma – you might have areas of hardened skin or damage to other connective tissues
increased risk of getting an infection
bruising, bleeding gums or nosebleeds. You might have bleeding from other parts of your body
dizziness
confusion
muscle or joint pain
painful cracking at the corners of your mouth
fluid filled blister at pressure points
inflammation of the vein (phlebitis)
thickening of the walls of the veins
changes to the colour or appearance of your nails
We have more information about side effects and tips on how to cope with them.
Cancer drugs can interact with medicines, herbal products, and some food and drinks. We are unable to list all the possible interactions that may happen. An example is grapefruit or grapefruit juice which can increase the side effects of certain drugs.
Tell your healthcare team about any medicines you are taking. This includes vitamins, herbal supplements and over the counter remedies. Also let them know about any other medical conditions or allergies you may have.
This treatment may harm a baby developing in the womb. It is important not to become pregnant or get someone pregnant while you're having treatment and for at least 6 months afterwards.
Talk to your doctor or nurse about effective contraception before starting treatment. Let them know straight away if you or your partner become pregnant while having treatment.
You may not be able to become pregnant or get someone pregnant after treatment with this drug. Talk to your doctor before starting treatment if you think you may want to have a baby in the future.
Men might be able to store sperm before starting treatment. And women might be able to store eggs or ovarian tissue. But these services are not available in every hospital, so you would need to ask your doctor about this.
It is not known whether this drug comes through into the breast milk. Doctors usually advise that you don’t breastfeed during this treatment.
If you are having tests or treatment for anything else, always mention your cancer treatment. For example, if you are visiting your dentist.
Don’t have immunisations with live vaccines while you’re having treatment and for up to 12 months afterwards. The length of time depends on the treatment you are having.
Ask your doctor or pharmacist how long you should avoid live vaccinations.
In the UK, live vaccines include rubella, mumps, measles, BCG, and yellow fever.
You can usually have:
other vaccines, but they might not give you as much protection as usual
the flu vaccine (as an injection)
the coronavirus (COVID-19) vaccine
Talk to your doctor or pharmacist about the best time to have a vaccine in relation to your cancer treatment.
You can be in contact with other people who have had live vaccines as injections. If someone has had a live vaccine by mouth or nasal spray there may be a small risk the vaccine virus can be passed onto you if your is weakened.
Your healthcare team will let you know if you need to take any precautions if you are in close contact with someone who has had a live vaccine.
Read more about immunisations and cancer treatment
For further information about this treatment and possible side effects go to the electronic Medicines Compendium (eMC) website. You can find the patient information leaflet on this website.
You can report any side effect you have to the Medicines and Healthcare products Regulatory Agency (MHRA) as part of their Yellow Card Scheme.
Last reviewed: 28 Feb 2025
Next review due: 28 Feb 2028
Chemotherapy is a standard treatment for some types of cancer. It uses anti cancer drugs to destroy cancer cells.
Coping with cancer can be difficult. There is help and support available. Find out about the emotional, physical and practical effects of cancer and how to manage them.
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Cancer drugs have side effects and these can vary from person to person. But there are things that you can do to help you cope.

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