Chemotherapy is a type of cancer treatment that uses drugs to destroy cancer cells. It is often used to shrink tumors or to reduce the chances of cancer cells spreading to other parts of the body. Chemotherapy drugs can be given in several ways, including intravenously, orally, or by injection.

There are a variety of chemotherapy drugs available, and the choice of drug or combination of drugs depends on the type of cancer being treated. Some chemotherapy drugs target the DNA of the cancer cells, while others interfere with cell division or damage the cancer cell’s cell membrane.

Chemotherapy drugs can have side effects, which can vary depending on the specific drugs being used and the individual patient’s tolerance. Common side effects of chemotherapy include fatigue, nausea and vomiting, hair loss, and decreased appetite. Some chemotherapy drugs can also increase the risk of infection or cause nerve damage.

Despite its side effects, chemotherapy can be an effective treatment for many cancers. It is often used in combination with other cancer treatments such as surgery or radiation therapy. Chemotherapy may also be used to ease symptoms in patients with advanced cancer and to slow the growth of cancer cells.