Chemotherapy may be used for prostate cancer that has spread and no longer responds to hormone therapy.

Chemotherapy uses drugs to kill cancer cells. The drugs for prostate cancer are usually given through a vein (intravenous). You may receive chemotherapy in a clinic, at the doctor's office, or at home. Some men need to stay in the hospital during treatment.

The side effects depend mainly on which drugs are given and how much. Chemotherapy kills fast-growing cancer cells, but the drugs can also harm normal cells that divide rapidly:

• Blood cells: When chemotherapy lowers the levels of healthy blood cells, you're more likely to get infections, bruise or bleed easily, and feel very weak and tired. Your health care team will check for low levels of blood cells. If your levels are low, your health care team may stop the chemotherapy for a while or reduce the dose of drug. There are also medicines that can help your body make new blood cells.
• Cells in hair roots: Chemotherapy may cause hair loss. If you lose your hair, it will grow back, but it may change in color and texture.
• Cells that line the digestive tract: Chemotherapy can cause a poor appetite, nausea and vomiting, or diarrhea. Your health care team can give you medicines and suggest other ways to help with these problems.

Other side effects include shortness of breath and a problem with your body holding extra water. Your health care team can give you medicine to protect against too much water building up in the body.

Also, chemotherapy may cause a skin rash, tingling or numbness in your hands and feet, and watery eyes. Your health care team can suggest ways to control many of these problems. Most go away when treatment ends.