Docetaxel trihydrate is primarily used in cancer treatment, particularly for breast, lung, prostate, gastric, and head and neck cancers. It works by inhibiting the division of cancer cells, effectively slowing tumor growth. The compound is administered intravenously and is often part of combination chemotherapy regimens. It is especially effective in cases where cancer has metastasized or is resistant to other treatments. Additionally, it is used in adjuvant therapy to reduce the risk of cancer recurrence after surgery. Due to its potent anti-cancer properties, it has become a key component in oncology, improving survival rates and quality of life for many patients.