Anticancer agents refer to drugs or compounds that are used in the treatment of cancer. These agents work by targeting and killing cancer cells, inhibiting their growth, or preventing their spread to other parts of the body. There are various types of anticancer agents, including chemotherapy drugs, targeted therapy drugs, immunotherapy drugs, and hormone therapy drugs. These agents are typically used in combination with other treatments, such as surgery or radiation therapy, to effectively treat cancer and improve patient outcomes. Research in this area focuses on developing new anticancer agents with improved efficacy and fewer side effects, as well as understanding the mechanisms by which these agents work to better tailor treatment strategies for different types of cancer.