Which medication is used to treat osteoporosis in the described case?

• A. Teriparatide
• B. Alendronate
• C. Calcitonin
• D. Raloxifene

Answer: (A)

Teriparatide is an anabolic osteoporosis therapy that directly stimulates osteoblast activity when given intermittently, promoting new bone formation. This leads to increases in bone mineral density and a meaningful drop in fracture risk, especially in patients at very high fracture risk or who haven’t responded to or tolerated antiresorptive therapies. Other options like alendronate primarily slow bone loss by inhibiting resorption, which is effective but does not build new bone. Calcitonin tends to be weaker and used in narrower situations, while raloxifene reduces vertebral fracture risk but doesn’t address hip fractures as effectively and has thromboembolic considerations. Because the described case calls for rebuilding bone and substantially reducing fracture risk, teriparatide is the best fit.