How
chemotherapy drugs work
Chemotherapy drugs work by stopping cancer cells
reproducing.
The drugs are carried in the blood so they can
reach cancer cells anywhere in the body. Different drugs damage cancer cells in different ways. When a combination of drugs is used each drug is chosen for its
different effects.
Chemotherapy drugs are also taken up by some
healthy cells. These healthy cells
can usually repair damage caused by chemotherapy but cancer cells can’t and eventually die.
can usually repair damage caused by chemotherapy but cancer cells can’t and eventually die.
Side effects
The effect that chemotherapy drugs have on some
of the healthy cells in your body can cause side effects. Most side effects
will go away when treatment is over.
Healthy cells in certain parts of the body, such
as the bone marrow (which makes blood cells) and the digestive system, are
especially sensitive to chemotherapy drugs. This is why certain side effects,
such as risk of infection or feeling sick, are more common. There’s information
on side effects and how they can be reduced and managed in our section on side effects .
An
overview of the side effects of chemotherapy
The side effects you get will depend on the chemotherapy drugs you’re
having. Different drugs cause different side effects. Some side effects are
mild and easily treated.
Others can be harder to manage but can often be reduced or helped in
some way.
Most side effects are short term and usually stop or gradually go away
when chemotherapy is over. Although the side effects can be unpleasant, the
benefits of chemotherapy usually outweigh this.
If you’re having a single drug you won’t usually have as many side effects as someone
having a combination of drugs . People having high doses of
chemotherapy and who need to stay in hospital may have more complex side
effects.
Your cancer doctor and nurse specialist will explain the side effects
that your chemotherapy is likely to cause.
Always tell your doctor or nurse about any side effects. They can
usually prescribe medicines to reduce them or change medicines you’re already
taking to more effective ones.
The main areas of your body that may be affected by chemotherapy are
where there’s a high turnover of normal cells, such as the:
- bone marrow (where blood cells are made)
- digestive system
- lining of your mouth
- hair follicles (where hair grows from).
Monitoring the effects on the
cancer
During treatment, your cancer doctor may want to
find out how the cancer is responding to the chemotherapy drugs.
If the cancer can be seen on a scan, you may
have another scan after a few treatments of chemotherapy to see if the cancer
is getting smaller. If you’re having chemotherapy to reduce the risk of cancer
coming back after surgery (adjuvant chemotherapy), you won’t usually need scans
to check if it’s working.
With some cancers, blood tests can be used to
check if treatment is working. These cancers release proteins in the blood
(called tumour markers) that can be measured with a blood test. If the tumour
markers are reducing it usually means the chemotherapy is working.
If results show the cancer hasn’t responded well
enough, your doctor may decide to give you different chemotherapy drugs.
Having
chemotherapy
Chemotherapy may be given in different ways,
depending on the type of cancer you have and the chemotherapy drugs used.
It’s standard for nurses to wear gloves and a
plastic apron when they give you chemotherapy. This is just a precaution to
protect themselves from any spillage of the drugs.
Chemotherapy can be given:
- by injection or a ‘drip’ directly into a vein (intravenous
chemotherapy)
- by mouth as tablets or capsules(oral
chemotherapy)
- by other ways, including: by
injection into the fluid around the spine and brain (intrathecal
chemotherapy); directly into a body cavity, for example the bladder; by
injection into muscle or under the skin; directly to the skin as a cream
for some skin cancers.
Chemotherapy at home
If you’re having chemotherapy at home as tablets
or through a pump, there are certain things to remember:
- Chemotherapy tablets, capsules or injections may need to be stored
in a particular way, such as in the fridge. Always follow the instructions
given by your nurse or pharmacist.
- Other people in your household should avoid direct contact with
your chemotherapy drugs and avoid picking them up with bare hands.
- All drugs must be stored out of the reach of children as they could
cause serious harm if taken by accident.
- If you’re having intravenous chemotherapy by pump and you notice
the drug leaking from the pump or tube, you should close the clamps on the
pump, wrap it in a plastic bag and wash your hands. Some hospitals provide
a ‘spill’ or ‘leakage’ kit, which includes instructions on what to do if
your pump leaks. You should then contact the nurse or doctor at the
hospital immediately.
- If you feel unwell at any time, contact the hospital straight away
on the contact number you’ve been given (day or night) for advice.
·
Individual chemotherapy drugs
·
This section contains information about individual chemotherapy drugs. It
includes information about how each drug is given and possible side effects
that may be experienced with each drug.
·
A chemotherapy drug can be either given on its own or in combination with
other drugs. When more than one drug is given it as known as a combination
chemotherapy regimen .
·
Drugs are listed in alphabetical order; select the one that you are
interested in for further information.
·
If you can't see the drug that you are looking for, it's possible that it
might be better known by a
brand name .
·
Combination chemotherapy regimen
·
A chemotherapy drug can be either given on its own or in combination with
other drugs. This information is about combinations of chemotherapy that might
be used to treat cancer.
·
We've
included information about how each regimen is given and possible side effects
that may be experienced with that regimen.
·
If you can't find information about a particular regimen there is more
information about chemotherapy in the individual chemotherapy drugs section.
·
The list of regimen is in alphabetical order, select the one you are
interested in for further information.
taken from http://www.macmillan.org.uk/Cancerinformation/Cancertreatment/Treatmenttypes/Chemotherapy/Individualdrugs/Individualdrugs.aspx
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