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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

March Release - 03/07/2016

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
Gold Standard Drug Database GS 02/01/2016
Medi-Span Master Drug Data Base MDDB 01/27/2016
Multum MediSource Lexicon MMSL 02/01/2016
Micromedex RED BOOK MMX 02/01/2016
FDA Structured Product Labels MTHSPL 02/26/2016
FDB MedKnowledge (formerly NDDF Plus) NDDF 02/03/2016
Veterans Health Administration National Drug File - Reference Terminology NDFRT 03/07/2016
NDFRT FDASPL relationships NDFRT_FDASPL 03/07/2016
NDFRT FMTSME relationships NDFRT_FMTSME 03/07/2016
US Edition of SNOMED CT (drug information) SNOMEDCT_US 01/31/2016
Veterans Health Administration National Drug File VANDF 01/21/2016


The following sources have not been updated in this release:

Source NameSABDate Updated
Anatomical Therapeutic Chemical Classification System ATC 2016
Medical Subject Headings (MeSH) MSH 08/18/2015
CMS Formulary Reference File MTHCMSFRF 2014

Data Changes

New Dose Form and Dose Form Group
RxNorm includes one new dose form: Nasal Powder. This dose form occurs in a handful of new drugs. Along with the new dose form comes a new dose form group: Nasal Product.

This release also 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 GPCKs361
Active BPCKs408
Active SCDs18740
Active SBDs10724
Active RXNORM MINs3990
Active RXNORM INs10865
Active RXNORM PINs2503
Active RXNORM BNs6425
Active RXNORM DFs114
Obsolete GPCKs145
Obsolete BPCKs129
Obsolete SCDs16264
Obsolete SBDs10012
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs9400
Obsolete RXNORM DFs54
Editor-suppressed SCDs1437
Editor-suppressed SBDs1276
Source-asserted NDCs1183133
Distinct source-asserted NDCs556496
Distinct SAB=RXNORM NDCs213141

Last Reviewed: March 7, 2016