Radiation therapy is another way to treat prostate cancer. Radiation can come from a machine outside the body or from putting radioactive materials through thin plastic tubes into the area where the cancer cells are found. Radiation can be the first therapy for prostate cancer, or it can be given following surgery. Hormone therapy - uses various hormones to stop cancer cells from growing. It is used for prostate cancer that has spread to distant parts of the body.
Chemotherapy is the use of drugs to kill cancer cells.
The drugs can be given by pill, or may be put into the body by inserting a needle into a vein or muscle. Most commonly, chemotherapy is advised if the cancer does not respond to hormone therapy. Biological therapy tries to get the body to fight the cancer. It uses materials made by the body or made in a laboratory to help the body's natural defenses. Although some trials of this kind of treatment are showing promise, it isn't yet clear if this therapy is effective or not.