a moderate therapeutic oral dose of 25-hydroxycholecalciferol , by circumventing the hepatic conversion of cholecalciferol to 25-hydroxycholecalciferol , will replete vitamin d stores and maintain the serum concentration of 25-hydroxycalciferol required to prevent or heal rickets in these patients .
C0020337
hydroxycholecalciferol
C0008318
cholecalciferol