Anticancer drugs are medications designed to treat cancer by targeting and killing cancer cells or inhibiting their growth. These drugs can work in various ways, such as interfering with cell division, blocking the formation of blood vessels that supply tumors, or enhancing the immune system's ability to fight cancer. Common types of anticancer drugs include chemotherapy, targeted therapy, and immunotherapy. The use of anticancer drugs is often part of a broader treatment plan that may include surgery and radiation therapy. While these drugs can be effective, they may also cause side effects due to their impact on healthy cells. Ongoing research aims to improve the effectiveness and reduce the side effects of these treatments.