Paricalcitol is a synthetic vitamin D analog used to treat and prevent secondary hyperparathyroidism, a common complication in patients with chronic kidney disease (CKD), particularly those on dialysis. Secondary hyperparathyroidism involves overactivity of the parathyroid glands, resulting in an imbalance of calcium, phosphorus, and parathyroid hormone (PTH) levels. This condition can cause bone disorders and cardiovascular issues among other complications.
