Mrs. Jane, a 68-year-old postmenopausal woman, presents to your office for follow-up regarding her osteoporosis management. She has been postmenopausal for 18 years and was diagnosed with osteoporosis two years ago. A vertebral compression fracture occurred one year ago, underscoring her high fracture risk. A recent DXA (dual-energy X-ray absorptiometry) scan revealed a T-score of -2.8 at the lumbar spine and -2.5 at the hip, indicating further decline in bone mineral density despite adequate calcium and vitamin D supplementation. On clinical evaluation, Mrs. Doe reports no new fractures or severe back pain. Laboratory tests show a low calcium level of 7.9 mg/dL. She does not remember the names of her current medications. As you analyze her clinical presentation, you wondered about different medications that can cause hypocalcemia. Which of the following medications can cause hypocalcemia?
