Definition: Derivatives of ERGOSTEROL formed by ULTRAVIOLET RAYS breaking of the C9-C10 bond. They differ from CHOLECALCIFEROL in having a double bond between C22 and C23 and a methyl group at C24.
deficiency: coordinate ERGOCALCIFEROLS /defic (IM) with VITAMIN D DEFICIENCY (IM)
Other names Vitamin D 2; Calciferols; Ergocalciferol; D2, Vitamin; D 2, Vitamin; Vitamin D2
paricalcitol [ 19-nor-1,25-(OH)2D2,19-nor-1alpha,25-dihydroxyvitamin D2,Abbott brand of paricalcitol,Zemplar ] suppressed immunoglobulin production & thymic lymphocyte proliferation in vivo