ATTRIBUTESGENERAL_CARDINALITYSINGLEATTRIBUTESSCHEDULESCHEDULE IVATTRIBUTESTTYPINCODESRxCUI235404CODESVUID4007495CODESVUID4019030NAMESRXNAV_STRbarbital sodiumNAMESRxNorm Namebarbital sodiumSOURCESSourceNational Drug Data File Plus Source VocabularySOURCESSourceVeterans Health Administration National Drug File