SPL Set ID: cd937aab-6ed2-44ef-b91e-82738997ed10

Paricalcitol, USP, the active ingredient in paricalcitol capsules, is a synthetically manufactured, metabolically active vitamin D analog of calcitriol with modifications to the side chain (D 2 ) and the A (19-nor) ring. Paricalcitol, USP is available as soft gelatin capsules for oral administration containing 1 microgram, 2 micrograms or 4 micrograms of paricalcitol, USP. Each capsule also contains butylated hydroxytoluene, ethanol, and medium chain triglycerides. The medium chain triglycerides are fractionated from coconut oil or palm kernel oil. The capsule shell is composed of gelatin, glycerin, purified water, and titanium dioxide. The 1 microgram capsule shell also contains black iron oxide and yellow iron oxide. The 2 microgram capsule shell also contains black iron oxide, red iron oxide and yellow iron oxide. The 4 microgram capsule shell also contains yellow iron oxide. Paricalcitol, USP is a white, crystalline powder with the empirical formula of C 27 H 44 O 3 , which corresponds to a molecular weight of 416.64. Paricalcitol, USP is chemically designated as 19-nor-1α,3β,25-trihydroxy-9,10-secoergosta-5(Z),7(E),22(E)-triene and has the following structural formula: d057ff76-figure-01