Chemotherapy is the use of anti-cancer drugs to destroy cancer cells. Many different kinds of chemotherapy medicines and treatment plans are available. The kind of medicines given, and how often they are needed, will depend on the type of cancer.
Chemotherapy is usually given in multiple courses (cycles) for a set amount of time, or for as long as the treatment is effective. Having the treatment in cycles allows time for the healthy cells in your body to recover between treatments.
Chemotherapy may be used on its own, or in combination with other types of treatment, such as before or after surgery or radiation therapy, or together with radiation therapy.