Paclitaxel is widely used in the treatment of various cancers, particularly breast, ovarian, and lung cancers. It works by inhibiting cell division, preventing cancer cells from multiplying and spreading. In breast cancer, it is often administered in combination with other chemotherapy drugs to enhance effectiveness. For ovarian cancer, it is a key component of first-line therapy, especially in advanced stages. In non-small cell lung cancer, it is used to slow tumor growth and improve patient outcomes. Additionally, Paclitaxel is utilized in the treatment of Kaposi's sarcoma, a cancer often associated with HIV/AIDS. Its application extends to coating medical devices like stents to prevent restenosis in cardiovascular procedures. Due to its potent anti-cancer properties, it remains a cornerstone in oncology.