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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

November Release - 11/02/2015

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
Medi-Span Master Drug Data Base MDDB 09/30/2015
Multum MediSource Lexicon MMSL 10/01/2015
Micromedex RED BOOK MMX 09/28/2015
Medical Subject Headings (MeSH) MSH 08/18/2015
FDA Structured Product Labels MTHSPL 10/27/2015
FDB MedKnowledge (formerly NDDF Plus) NDDF 10/07/2015
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
Veterans Health Administration National Drug File VANDF 09/25/2015


The following sources have not been updated in this release:

Source NameSABDate Updated
Anatomical Therapeutic Chemical Classification System ATC 2015
Gold Standard Drug Database GS 09/14/2015
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 GPCKs 348
Active BPCKs 399
Active SCDs 19751
Active SBDs 10583
Active RXNORM MINs 3982
Active RXNORM INs 10623
Active RXNORM PINs 2461
Active RXNORM BNs 6364
Active RXNORM DFs 113
Obsolete GPCKs 145
Obsolete BPCKs 128
Obsolete SCDs 15192
Obsolete SBDs 10078
Obsolete RXNORM MINs 0
Obsolete RXNORM INs 0
Obsolete RXNORM PINs 0
Obsolete RXNORM BNs 9368
Obsolete RXNORM DFs 53
Editor-suppressed SCDs 1273
Editor-suppressed SBDs 1141
Source-asserted NDCs 1160673
Distinct source-asserted NDCs 543004
Distinct SAB=RXNORM NDCs 210032

Last Reviewed: November 2, 2015