Cancer drugs A to Z list
R-CVP is the name of a combination of cancer drugs. You have:
R – rituximab (ri-tuk-si-mab)
C – cyclophosphamide (sike-low-foss-fa-mide)
V – vincristine (vin-kris-teen)
P – (pred-nis-oh-lone)
It is a treatment for non-Hodgkin lymphoma (NHL).
Rituximab is a type of targeted cancer drug called a monoclonal antibody. It targets a protein called CD20 on the surface of the lymphoma cells. Rituximab sticks to all the CD20 proteins it finds. Then the cells of the immune system pick out the marked cells and kill them.
Cyclophosphamide and vincristine are chemotherapy drugs. These chemotherapy drugs destroy quickly dividing cells, such as cancer cells.
Prednisolone is a type of steroid. It treats lymphoma by stopping the cancer cells growing and killing them. It may also help you feel less sick during treatment. And help reduce your body’s immune response, to try and prevent an allergic reaction to rituximab.
You take prednisolone as tablets. You swallow the tablets whole after a meal, or with milk, as they can irritate your stomach. It is best to take them with or after breakfast.
You usually have all the other drugs as a drip into your bloodstream (intravenously).
Speak to your pharmacist if you have problems swallowing the tablets.
Whether you have a full or an empty stomach can affect how much of a drug gets into your bloodstream.
You should take the right dose, no more or less.
Talk to your healthcare team before you stop taking a cancer drug or if you miss a dose.
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.
You usually have R-CVP as cycles of treatment. This means that you have the drugs and then a rest to allow your body to recover.
You have between 4 to 8 cycles. Each cycle lasts 21 days (3 weeks).
Rituximab can cause an allergic reaction. So before each dose you have paracetamol, a steroid and an antihistamine drug such as chlorphenamine (Piriton).
For the first cycle of rituximab, you have it as a drip into your bloodstream slowly over a few hours. This is to prevent an allergic reaction. Your nurse will increase how fast it goes in (rate) approximately every 30 minutes if you have no allergic reaction.
Your next rituximab drip will usually go in quicker, but this will depend on how you got on with the first cycle.
You have R-CVP in the following way:
You have rituximab as a drip into your bloodstream over a few hours.
You have vincristine as a drip into your bloodstream over about 10 minutes.
You have cyclophosphamide as an injection into your vein or as a drip over about 20-30 minutes.
You take prednisolone in the morning with or just after breakfast.
You take prednisolone in the morning with or just after breakfast.
You have no treatment.
You then start a new cycle of treatment.
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.
Before treatment starts you may have a blood test to check for viruses such as hepatitis B, hepatitis C, and HIV. This is called a viral screen.
It’s important for your doctor to know if you have had any of these viruses. This is because this treatment can weaken your and can cause the virus to become active again (reactivation).
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.
These side effects happen in more than 10 in 100 people (more than 10%). You might have one or more of them. They include:
Increased risk of getting an infection is due to a drop in white blood cells. Symptoms include a change in temperature, aching muscles, cough, headaches, feeling cold and shivery, pain or a burning feeling when peeing, or generally feeling unwell. You might have other symptoms depending on where the infection is.
Infections can sometimes be life threatening. You should contact your advice line urgently if you think you have an infection.
This is due to a drop in the number of platelets in your blood. These blood cells help the blood to clot when we cut ourselves. You may have nosebleeds or bleeding gums after brushing your teeth. Or you may have lots of tiny red spots or bruises on your arms or legs. This is known as petechiae.
You might be breathless and look pale due to a drop in red blood cells. This is called anaemia.
is easier to sort out if you treat it early. Drink plenty and eat as much fresh fruit and vegetables as you can. Try to take gentle exercise, such as walking. Tell your healthcare team if you think you are constipated. They can give you a laxative if needed.
You might feel very tired and as though you lack energy.
Various things can help you to reduce tiredness and cope with it, for example exercise. Some research has shown that taking gentle exercise can give you more energy. It is important to balance exercise with resting.
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.
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.
Inflammation of the bladder (cystitis) can cause pain such as a burning feeling when you go. You might feel that you have to pass urine more often than usual or find it difficult to pass urine. Occasionally you might notice blood when passing urine. Tell your doctor if this happens.
It helps to drink plenty of fluids. Don't take any over the counter medicines for cystitis as they could be harmful.
A reaction may happen during the infusion. Symptoms can include a skin rash, itching, swelling of the lips, face or throat, breathing difficulties, fever and chills. Your nurse will give you medicines beforehand to try to prevent a reaction.
A build up of fluid may cause swelling in your arms, hands, ankles, legs, face and other parts of the body. Contact your doctor if this happens to you.
Numbness or tingling in fingers or toes is often temporary and can improve after you finish treatment. Tell your healthcare team if you're finding it difficult to walk or complete fiddly tasks such as doing up buttons.
Tell your healthcare team if you keep getting headaches. They can give you painkillers to help.
Skin problems include a skin rash, dry skin and itching. This usually goes back to normal when your treatment finishes. Your healthcare team can tell you what products you can use on your skin to help.
You might lose your appetite for various reasons while having cancer treatment. Sickness, taste changes or tiredness can put you off food and drinks.
You might feel some pain from your muscles and bones. Speak to your doctor or nurse about what painkillers you can take to help with this.
Tell your treatment team if you have this. They can check the cause and give you medicine to help.
Immunoglobulin G is an antibody made by the immune system to fight bacteria and viruses. You have regular blood tests during and after treatment to check for this.
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:
sepsis - a serious reaction to an infection. Signs can include feeling very unwell, not passing urine, a very high or very low temperature, shivering, slurred speech or confusion, breathlessness, mottled or discoloured skin, extreme shivering or muscle pain. Call 999 or go to accident and emergency (A&E) immediately if you have any of these symptoms
chest infection and inflammation in your airways
sore mouth, throat and ulcers - keep your mouth and teeth clean and drink plenty of fluids
changes to the way your liver works that are usually mild and not likely to cause symptoms. You will have regular blood tests to check your liver
high sugar levels in your blood
weight gain
a high level of a substance (enzyme) called LDH in your blood
a low level of calcium in your blood
feeling agitated and anxious or depressed
difficulty staying or getting to sleep
widening of the blood vessels causing low blood pressure and flushing of the skin
dizziness
eye problems such a dry, watery or itchy eyes
ringing in the ear (tinnitus) and ear pain. Very rarely deafness
changes to your heart rhythm, it can also cause a heart attack. Contact your healthcare team straight away if you feel tightness or pain in your chest, lightheaded, dizzy, sweating or anxious
low blood pressure that can cause you to feel lightheaded or dizzy, sometimes this can happen when you stand up from sitting or lying down (orthostatic hypotension)
high blood pressure that might cause headaches, confusion, vision problems or chest pain
tightening of the muscles that line the airways (bronchospasm), cough and shortness of breath
runny nose
diarrhoea
difficulty swallowing or sore throat
indigestion and heart burn
increase in sweating or night sweats
tight muscles
pain in different parts of the body such as in your muscles, joints, jaw, chest, back, neck and pain where the cancer is
mood and mental health changes such as suicidal thoughts, irritability, moodiness, losing touch with reality (delusions), seeing, hearing, smelling, feeling things that nobody else can (hallucinations). Tell your healthcare team if this happens
a virus called Hepatitis B to become active again if you've had it in the past
high cholesterol
low red blood cells (anaemia)
organ failure
shivering
feeling weak and generally unwell (malaise)
changes to your face and appearance such as swollen or puffy face, acne, growth of facial hair, weight gain around your tummy and stretch marks (Cushing’s syndrome)
low levels of adrenal hormones causing weight loss, loss of appetite, nausea, vomiting and low blood pressure
changes to the levels of sodium and potassium in the blood. You have regular blood tests to check for this
loss of fat and muscle in the body
weak, brittle or fractured bones
thinning of the skin
wounds take longer to heal
your bowel stops working properly
These side effects happen in fewer than 1 in 100 people (fewer than 1%). You might have one or more of them. They include:
nerve damage causing pain
problems with the way your blood clots
swollen lymph nodes
taste changes
large tummy (abdomen)
pain around the drip site
a condition where the red blood cells are destroyed faster than they can be made (haemolytic anaemia)
a condition where the bone marrow is unable to make all types of blood cells (aplastic anaemia)
raised C-reactive protein levels
low levels of certain hormones in the body (female sex hormones)
cataracts and glaucoma
an excessive uncontrolled release of a hormone called antidiuretic hormone (ADH) causing sickness, loss of appetite, sore muscles and weakness
changes to the levels of chemicals in your blood due to the breakdown of tumour cells (tumour lysis syndrome) - you have regular blood tests to check for this
For more information about the side effects of individual drugs:
We have more information about side effects and tips on how to cope with them.
Read more about how to cope with side effects
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.
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.
This treatment may harm a baby developing in the womb. It is important not to become pregnant or get someone pregnant while you are having treatment.
Women must not become pregnant for at least a year after the end of treatment. Men should not get someone pregnant for at least 6 months after treatment.
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.
Don’t breastfeed during this treatment and for 6 months afterwards. The drug may come through in the breast milk.
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 each drug and the possible side effects go to the electronic Medicines Compendium (eMC) website. You can find patient information leaflets for each drug on this website.
You can report any side effect you have to the Medicines and Healthcare Regulatory Agency (MHRA) as part of their Yellow Card Scheme.
Last reviewed: 18 Jul 2025
Next review due: 18 Jul 2028
Non-Hodgkin lymphoma (NHL) is a cancer of the lymphatic system. There are more than 60 different types of non-Hodgkin lymphoma. They can behave in very different ways and need different treatments.
Practical and emotional support is available to help you cope with non-Hodgkin lymphoma.
Chemotherapy is a standard treatment for some types of cancer. It uses anti cancer drugs to destroy cancer cells.
Targeted cancer drugs work by ‘targeting’ those differences that help a cancer cell to survive and grow. Immunotherapy uses our immune system to fight cancer. Find out more about the different types of treatment.

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