Used primarily in the treatment of conditions related to calcium metabolism, it is effective in managing hypocalcemia in patients with chronic kidney disease, particularly those undergoing dialysis. It helps in the regulation of calcium and phosphate levels in the body, promoting bone health and preventing renal osteodystrophy. Additionally, it is prescribed for osteoporosis to enhance calcium absorption and reduce bone loss. In some cases, it is also utilized in the treatment of psoriasis, where it helps to regulate skin cell growth and differentiation. Its role in supporting immune function has been explored in various autoimmune conditions.