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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

December Release - 12/07/2015

This release of RxNorm is consistent with the 2015AB UMLS Metathesaurus release. For additional information about RxNorm releases, including scripts for loading the RxNorm data into Oracle and MySQL databases, read the RxNorm technical documentation.


The following sources have been updated since the previous RxNorm release:

Source NameSABDate Updated
Gold Standard Drug Database GS 10/28/2015
Medi-Span Master Drug Data Base MDDB 11/04/2015
Multum MediSource Lexicon MMSL 11/01/2015
Micromedex RED BOOK MMX 11/02/2015
FDA Structured Product Labels MTHSPL 11/27/2015
FDB MedKnowledge (formerly NDDF Plus) NDDF 11/04/2015
Veterans Health Administration National Drug File VANDF 10/21/2015


The following sources have not been updated in this release:

Source NameSABDate Updated
Anatomical Therapeutic Chemical Classification System ATC 2015
Medical Subject Headings (MeSH) MSH 08/18/2015
CMS Formulary Reference File MTHCMSFRF 2014
Veterans Health Administration National Drug File - Reference Terminology NDFRT 11/02/2015
NDFRT FDASPL relationships NDFRT_FDASPL 11/02/2015
NDFRT FMTSME relationships NDFRT_FMTSME 11/02/2015
US Edition of SNOMED CT (drug information) SNOMEDCT_US 07/31/2015

Data Changes

This release includes many changes to dose forms for injectable products as part of the ongoing prescribable names (TTY=PSN) work.

Data Counts

Term Type or AttributeNumber
Active GPCKs353
Active BPCKs407
Active SCDs19856
Active SBDs10675
Active RXNORM MINs3989
Active RXNORM INs10687
Active RXNORM PINs2480
Active RXNORM BNs6445
Active RXNORM DFs113
Obsolete GPCKs140
Obsolete BPCKs124
Obsolete SCDs15125
Obsolete SBDs9982
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs9324
Obsolete RXNORM DFs53
Editor-suppressed SCDs1307
Editor-suppressed SBDs1168
Source-asserted NDCs1167418
Distinct source-asserted NDCs547116
Distinct SAB=RXNORM NDCs217070

Last Reviewed: December 7, 2015