One Alpha 0.5mg Capsules (100) contains alfacalcidol, a form of active vitamin D. It is commonly prescribed to manage calcium and phosphate levels in the body, especially for individuals with conditions like osteoporosis, chronic kidney disease, or hypocalcemia. Alfacalcidol helps to enhance calcium absorption in the intestines and regulate calcium metabolism, supporting bone health and preventing bone loss. The product comes in a bottle of 100 capsules, providing a long-term supply for individuals requiring active vitamin D supplementation.