Paricalcitol, USP, the active ingredient in Paricalcitol Injection, is a synthetically manufactured active vitamin D2 analog. It is a white powder 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:
|Molecular formula is C27H44O3.|
Molecular weight is 416.64.
Paricalcitol Injection is available as a sterile, clear, colorless, aqueous solution for intravenous use. Each mL contains paricalcitol, 2 mcg or 5 mcg and the following inactive ingredients: alcohol 40% (v/v) and propylene glycol 10% (v/v) in water for injection.