Cancer drugs A to Z list
GC is the name of a chemotherapy combination that includes:
gemcitabine. You pronounce gemcitabine as jem-site-uh-been.
cisplatin. You pronounce cisplatin as sis-pla-tin.
It is a treatment for a number of different types of cancer.
Find out about your cancer type
These chemotherapy drugs destroy quickly dividing cells, such as cancer cells.
You have these drugs into your bloodstream (intravenously).
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.
Risk of tissue damage
When you are having this treatment through a cannula it could damage the tissue if it leaks out of the vein. This is called extravasation. This can happen anywhere along the vein that the drug is going into. It doesn’t happen very often. Tell your nurse straight away if you notice any changes such as swelling, redness, pain, burning, or a stinging feeling.
Your nurse will stop the drug treatment. And they will treat the area to relieve symptoms and reduce tissue damage. Contact your healthcare team if you develop any of these symptoms when you are at home.
You usually have GC chemotherapy as . Each cycle takes 3 weeks.
You can have up to 8 cycles of treatment taking from 3 to 6 months.
Day 1
You have gemcitabine as a drip into your bloodstream over 30 minutes.
You have cisplatin as a drip into your bloodstream over 6 to 8 hours.
Day 2 to 7
You have no treatment.
Day 8
You have gemcitabine as a drip into your bloodstream over 30 minutes.
Day 8 - bladder and bile duct cancer only
You have cisplatin as a drip into your bloodstream over 60 minutes.
Day 9 to 21
You have no treatment.
You then start a new cycle of treatment.
For cancer of the biliary tract you can have up to 8 cycles of treatment. You have both gemcitabine and cisplatin once every 3 weeks on day 1 of each cycle.
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.
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.
Sodium is a salt, and having these drugs can lower its levels in your blood. The symptoms of low sodium include headache, feeling and being sick, confusion, and restlessness. The levels usually go back to normal when you finish treatment. You have regular blood tests to check this.
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 might have liver changes that are usually mild and unlikely to cause symptoms. They usually go back to normal when treatment finishes.
You have regular blood tests to check for any changes in the way your liver is working.
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 may have some hair loss or hair thinning. This can be upsetting. Your hair might grow back once treatment has finished.
Small amounts of blood and protein in your urine may be found when your nurse tests your urine. This usually goes away on its own. If there are large amounts of protein you may have tests to check how well your kidneys are working.
You may have headaches, muscle aches (myalgia), a high temperature and shivering. You should contact your advice line urgently if you have these symptoms.
You may have swelling of your face, hands and feet due to a build up of fluid (oedema).
Tell your healthcare team straightaway if you get a high temperature. Ask them if you can take paracetamol to help lower your temperature.
You might have some changes in the way your kidneys work. You have regular blood tests to check how well they are working.
You might have some hearing loss, especially with high pitched sounds. You might also have some ringing in your ears (tinnitus). Tell your doctor or nurse if you notice any changes.
This is usually mild and gets better without treatment. You might also have a cough, wheezing or both but this is much less common.
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:
blood clots that are life threatening; signs are pain, swelling and redness where the clot is. Feeling breathless can be a sign of a blood clot on the lung. Contact your advice line or doctor straight away if you have any of these symptoms
heart problems such as slow, fast or irregular heartbeat – rarely this can cause a heart attack
a loss of appetite (anorexia)
a sore mouth and ulcers
headaches
drowsiness or problems with sleeping (insomnia)
inflammation of the lining of the nose (rhinitis), symptoms might include a runny nose, cough and sneezing
diarrhoea or constipation
sweating
back or muscle pain
tiredness and weakness
shivering and shaking (chills)
numbness or tingling in the hands and feet
This side effects happens in fewer than 1 in 100 people (less than 1%). You might have one or more of them. They include:
weakening of the heart muscle (heart failure). Rarely this treatment can cause a heart attack.
an 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
a type of blood cancer called leukaemia - talk to your doctor if you are concerned about this
changes in the lungs such as scarring of the air sacs of the lung (interstitial pneumonitis) and wheeze
high levels of bilirubin and low levels of magnesium in your blood. You have regular tests to check this
stroke
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.
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 might stop you being able to father a child. Talk to your doctor before starting treatment if you think you may want to have a baby in the future. You may be able to store sperm before starting treatment.
Read more about fertility and chemotherapy
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.
Don’t breastfeed during this treatment. This is because the drugs may come through in your 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 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: 16 May 2024
Next review due: 17 May 2027
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Chemotherapy is a standard treatment for some types of cancer. It uses anti cancer drugs to destroy cancer cells.
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.
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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