C. Chemotherapy is the use of medications or chemicals with cancer-fighting abilities. Chemotherapy drugs interfere with the cancer cells' ability to grow or multiply. Different groups of drugs act on cells in different ways. Identification of the type of disease is important because certain chemotherapies work best for certain diseases. Even patients diagnosed with the same disease may be treated with different agents, depending on what is known to be most effective for the particular circumstances.
Chemotherapy can damage normal cells as well as cancer cells.
Those normal cells most effected are ones which divide rapidly. The intravenous route, or IV, is a very common way of giving medication directly into a vein. A small plastic needle is inserted into one of the veins in the lower arm. There is some discomfort during insertion because a needle stick is required to get into the vein. After that, the administration of the medication is usually painless.