Rocaltrol (generic name Calcitriol) is an artificially active form of vitamin D. Calcitriol is used for patients with kidney disease that cannot make enough of the active form of Vitamin D. This medicine is also used to prevent and treat certain types of possible parathyroid/calcium/phosphorus problems. long-term hypoparathyroidism or dialysis occurs.

Rofcal is on the World Health Organization's List of Essential Medicines, used as a medicine to treat low blood calcium due to hypoparathyroidism, osteomalacia and hyperparathyroidism due to kidney disease, osteoporosis, and hypophosphatemia.