Dr. Green
Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Dr. Patel, what else can you tell us about chemotherapy?

Dr. Patel
Well, Dr. Green, chemotherapy can be given in two ways, and the way it's given depends on the type and stage of the cancer being treated.

One way is called systemic chemotherapy. In systemic chemotherapy, the drugs are taken by mouth or injected into a vein or muscle. The drugs enter the bloodstream and can reach cancer cells throughout the body.

The second way chemotherapy is given is called regional chemotherapy. The drugs are placed directly into the cerebrospinal fluid, an organ, or a body cavity so that they mainly affect cancer cells in those specific areas.