<prompt> Paricalcitol is FDA-approved for which of the following conditions:RicketsOsteomalaciaPrimary hyperparathyroidismSecondary hyperparathyroidism  <response>: Paricalcitol: It is a synthetic calcitriol derivative Reduces serum PTH levels without producing hypercalcemia or altering serum phosphorus Administered orally or intravenously FDA-approved for treating secondary hyperparathyroidism in patients with CKD 