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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

January Release - 01/04/2016

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
Anatomical Therapeutic Chemical Classification System ATC 2016
Gold Standard Drug Database GS 12/11/2015
Medi-Span Master Drug Data Base MDDB 12/02/2015
Multum MediSource Lexicon MMSL 12/01/2015
Micromedex RED BOOK MMX 11/30/2015
FDA Structured Product Labels MTHSPL 12/24/2015
FDB MedKnowledge (formerly NDDF Plus) NDDF 12/09/2015
Veterans Health Administration National Drug File - Reference Terminology NDFRT 01/04/2016
NDFRT FDASPL relationships NDFRT_FDASPL 01/04/2016
NDFRT FMTSME relationships NDFRT_FMTSME 01/04/2016
Veterans Health Administration National Drug File VANDF 11/19/2015


The following sources have not been updated in this release:

Source NameSABDate Updated
Medical Subject Headings (MeSH) MSH 08/18/2015
CMS Formulary Reference File MTHCMSFRF 2014
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 GPCKs352
Active BPCKs407
Active SCDs18734
Active SBDs10678
Active RXNORM MINs3989
Active RXNORM INs10736
Active RXNORM PINs2489
Active RXNORM BNs6435
Active RXNORM DFs112
Obsolete GPCKs142
Obsolete BPCKs126
Obsolete SCDs16271
Obsolete SBDs10007
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs9356
Obsolete RXNORM DFs54
Editor-suppressed SCDs1341
Editor-suppressed SBDs1203
Source-asserted NDCs1172563
Distinct source-asserted NDCs550074
Distinct SAB=RXNORM NDCs217984

Last Reviewed: January 4, 2016