Chemotherapy (also referred to as "chemo") is a mode of cancer treatment, which uses certain drugs to treat cancer. The drugs used for chemotherapy are referred to as "anti-cancer" drugs or "antineoplastics." This treatment was used by the ancient Greeks, but modern chemotherapy for treatment of cancer started and developed from 1940s with the use of nitrogen mustard. Since then, many new drugs have been added to the armamentarium for treatment of cancer.
Currently, there are about 100 drugs to treat cancer. Many newer kinds of chemo drugs such as biologic response modifiers, hormone therapy and monoclonal antibodies are also used for the treatment of many types of cancer. Research is being carried out to develop newer and more effective chemo drugs.
First line and second line chemotherapy
The goal of the treatment of cancer is to cure the disease. Chemotherapy drugs used for the treatment can be categorised as first line and second line chemotherapy.
Difference between chemotherapy and other treatments for cancer
The two main modes of treatment of cancer i.e. radiation and surgery are considered as local treatments. These treatments act in one area of the body such as the breast, lung or prostate and target the cancer directly. Chemotherapy is different from surgery or radiation as it mostly acts as a systemic treatment (whether given orally or in the vein). The drugs after administration get distributed throughout the body and reach the cancer cells.
What is Chemotherapy used for?
Chemotherapy is used to treat many different types of cancer and for a variety of purposes such as to:
The doctor decides on the chemotherapy drug/s needed based on many factors such as the stage of disease, type of tumour, overall health etc.
How is chemotherapy administered – Administration of chemotherapy depends on the precise testing referred as clinical trials (sessions).read more
How is chemotherapy given: Chemotherapy is given by intravenous administration of certain drugs, but oral tablets and other methods of giving the chemotherapy drugs is also used.read more