Staying in Balance with RAYALDEE®
RAYALDEE® is an extended-release (ER) oral formulation of calcifediol, a prohormone of calcitriol, the active form of vitamin D3. The product is the first and only medicine approved by the U.S. Food and Drug Administration for raising serum total 25D and lowering blood levels of intact parathyroid hormone (iPTH). RAYALDEE is approved to treat secondary hyperparathyroidism (SHPT) in adults with stage 3 or 4 CKD and vitamin D insufficiency in the U.S. and in 11 European countries.