Paclitaxel 300 mg Injection is a prescription chemotherapy medication used in the treatment of various solid tumors, including breast cancer, ovarian cancer, and non‑small cell lung cancer (NSCLC). Paclitaxel belongs to the taxane class of anticancer drugs and works by stabilizing microtubules in cancer cells, interfering with cell division and slowing tumor growth. It is administered by trained healthcare professionals as an intravenous infusion in a clinical setting. Paclitaxel requires ongoing monitoring of blood counts and organ function during treatment. Available in Pakistan from specialist oncology pharmacies under several brands such as Paclitaxel Ahp, Paclitaxel Ebewe, and Paclitaxel Medac. A valid prescription is mandatory to obtain and use this medicine safely.