Calcitriol is the active form of vitamin D. Your body naturally produces it after sun exposure, but sometimes you need supplemental calcitriol to maintain healthy calcium levels.
Doctors prescribe calcitriol primarily to treat hypoparathyroidism, a condition where your parathyroid glands don’t produce enough parathyroid hormone (PTH). PTH helps regulate calcium and phosphorus in your blood. Insufficient PTH leads to low blood calcium levels.
Calcitriol also plays a crucial role in treating vitamin D deficiency. This deficiency can manifest in various ways, including bone weakness (osteomalacia in adults, rickets in children) and muscle weakness. Calcitriol helps your body absorb calcium from your diet, strengthening bones.
Another common use of calcitriol is in the treatment of secondary hyperparathyroidism, a complication often associated with kidney disease. Kidney disease can disrupt calcium and phosphorus balance, leading to overactive parathyroid glands. Calcitriol helps control PTH production and improve mineral balance.
Remember, calcitriol is a prescription medication. Dosage depends on your specific condition and needs. Always follow your doctor’s instructions carefully. Potential side effects include nausea, vomiting, and high blood calcium levels. Discuss any concerns with your physician.


