Chemotherapy is a type of cancer treatment that uses drugs to kill cancer cells or stop them from growing and dividing. It can be administered in several forms, including oral tablets, injections, or intravenous (IV) infusions. The primary aim of chemotherapy is to target rapidly dividing cells, which makes it effective against cancer cells that multiply quickly. However, it can also affect healthy cells that grow rapidly, such as those in the hair, digestive tract, and bone marrow, leading to common side effects.