Docetaxel is a chemotherapy medication used primarily to treat various types of cancer, including breast cancer, lung cancer, and prostate cancer. It works by inhibiting cell division, which helps to slow down or stop the growth of cancer cells. Administered through an intravenous infusion, Docetaxel is often given in cycles, allowing the body time to recover between treatments. Common side effects may include fatigue, nausea, and hair loss, but these can vary from person to person. Regular monitoring by healthcare professionals is essential during treatment.