Chemotherapy is the use of powerful, anti-cancer drugs to kill cancer cells.
Often, it is not the primary therapy for prostate cancer patients, but may be used when prostate cancer has spread outside of the prostate gland, or in combination with other therapies. According to the American Cancer Society, chemotherapy is not effective against early prostate cancer. Although it may slow tumor growth and reduce pain, it has had limited success for the treatment of advanced disease. The drugs kill or cause damage to cancer cells, but may also damage normal cells. Hospitalization may be needed to monitor treatment and to control chemotherapy's side effects.