This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
[{'content': 'All of the following agents decreases bone resorption in osteoporosis, Except - \nSelect and explain. \nA. Alendronate, B. Etidronate, C. Strontium, D. Teriparatide', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A drug used in osteoporosis\n\nInhibit resorption: - Bisphosphonates, denosumab, cinacalcet, calcitonin, estrogen, SERMS, gallium nitrate.\nStimulateformation : -Teriparatide, calcium, calcitrial, fluorides,.\nBoth actions : - Strontium, renelate.\n\n\nDrugs decreasing bone resorption initially increase bone mineral density (BMI), but it reaches a plateau in 2-3 yrs because bone formation also decreases.\nOn the other hand, drugs promoting bone formation can increase BMD through the period of treatment.', 'role': 'assistant'}]