This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Which of the following drugs is useful for treatment of advanced prostrate cancer \nSelect and explain. \nA. Hydroxyurea, B. Cisplatin, C. Paclitaxel, D. Carboplatin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer Harrinson 17th 638 The most significant advance in the therapy of sickle cell anemia has been the introduction of hydroxyurea as a mainstay of therapy for patients with severe symptoms Hydroxyurea (10-30 mg/kg per day) increases fetal hemoglobin and may also exe beneficial affects on RBC hydration, vascular wall adherence and suppression of the granulocyte and reticulocyte counts', 'role': 'assistant'}]