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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

October Release - 10/06/2014

This release of RxNorm is consistent with the 2014AA 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 09/11/2014
Medi-Span Master Drug Data Base MDDB 09/03/2014
Multum MediSource Lexicon MMSL 09/01/2014
Micromedex RED BOOK MMX 09/08/2014
FDA Structured Product Labels MTHSPL 09/25/2014
FDB MedKnowledge (formerly NDDF Plus) NDDF 09/17/2014
Veterans Health Administration National Drug File - Reference Terminology NDFRT 10/06/2014
NDFRT FDASPL relationships NDFRT_FDASPL 10/06/2014
NDFRT FMTSME relationships NDFRT_FMTSME 10/06/2014
Veterans Health Administration National Drug File VANDF 08/29/2014


The following sources have not been updated in this release:

Source NameSABDate Updated
Anatomical Therapeutic Chemical Classification System ATC 2014
Medical Subject Headings (MeSH) MSH 02/10/2014
FDA National Drug Code Directory MTHFDA 06/01/2011
US Edition of SNOMED CT (drug information) SNOMEDCT_US 07/31/2014


Data Changes

There are no significant data changes in this release.

Data Counts

Term Type or AttributeNumber
Active GPCKs 367
Active BPCKs 455
Active SCDs 19795
Active SBDs 10855
Active RXNORM MINs 3898
Active RXNORM INs 10183
Active RXNORM PINs 2356
Active RXNORM BNs 6743
Active RXNORM DFs 103
Obsolete GPCKs 120
Obsolete BPCKs 108
Obsolete SCDs 14637
Obsolete SBDs 10434
Obsolete RXNORM MINs 0
Obsolete RXNORM INs 0
Obsolete RXNORM PINs 0
Obsolete RXNORM BNs 9510
Obsolete RXNORM DFs 57
Editor-suppressed SCDs 1080
Editor-suppressed SBDs 945
OCD atoms 331028
Source-asserted NDCs 1317298
Distinct source-asserted NDCs 594882
Distinct SAB=RXNORM NDCs 196624

Last Reviewed: October 6, 2014