What
is chemotherapy?
Chemotherapy is the use of anticancer
drugs to treat cancerous cells. Chemotherapy
has been used for many years and is one of the
most common treatments for cancer. In most cases,
chemotherapy works by interfering with the cancer
cell's ability to grow or reproduce.
Different groups of drugs work
in different ways to fight cancer cells. Chemotherapy
may be used alone for some types of cancer or
in combination with other treatments such as
radiation or surgery. Often, a combination of
chemotherapy drugs is used to fight a specific
cancer. Certain chemotherapy drugs may be given
in a specific order depending on the type of
cancer it is being used to treat. There are more
than 50 chemotherapy drugs that are commonly
used. |
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How is chemotherapy administered?
Chemotherapy is usually given
in cycles: a treatment period followed by a recovery
period, then another treatment, and so on. Most
patients have chemotherapy in a hospital outpatient
section or in a doctor’s office. In some
cases, patients stay in the hospital during drug
treatment. Chemotherapy can be given:
- as a pill to swallow.
- as an injection into the muscle or fat tissue.
- intravenously (directly to the bloodstream;
also called IV).
- topically (applied to the skin)
- directly into a body cavity
Side effects of chemotherapy
While chemotherapy can be quite
effective in treating certain cancers, chemotherapy
drugs reach all parts of the body, not just the
cancer cells. Because of this, there may be many
side effects during treatment. As each person's
individual medical profile and diagnosis is different,
so is his/her reaction to treatment. Side effects
may be severe, mild, or absent and may include
hair loss, low blood counts, loss of appetite,
nausea, vomiting, diarrhea, mouth sores, and
fatigue. Many of these side effects can be controlled
with medicine, and they generally are short-term
problems. Be sure to discuss with your cancer
care team any/all possible side effects of treatment
before the treatment begins. Being able to anticipate
these side effects can help you and your caregivers
prepare, and, in some cases prevent these symptoms
from occurring.
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