This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
[{'content': 'Which of the following drug is a SERM is useful for treatment of osteoporosis? \nSelect and explain. \nA. Raloxifene, B. Bisphosphonate, C. Strontium, D. Estradiol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Raloxifen has agonistic action on estrogen receptors on bone Raloxifene is a first line drug for prevention and treatment of osteoporosis in postmenopausal females. It prevent bone loss, increases bone mineral density by 0.9 percent. (REF.Essential of medical pharmacology K D TRIPATHI 6 Edition, Page No - 305)', 'role': 'assistant'}]