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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

October Release - 10/05/2015

This release of RxNorm is consistent with the 2015AA 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 09/14/2015
Medi-Span Master Drug Data Base MDDB 09/09/2015
Multum MediSource Lexicon MMSL 09/01/2015
Micromedex RED BOOK MMX 09/07/2015
FDA Structured Product Labels MTHSPL 09/24/2015
FDB MedKnowledge (formerly NDDF Plus) NDDF 09/09/2015
Veterans Health Administration National Drug File - Reference Terminology NDFRT 10/05/2015
NDFRT FDASPL relationships NDFRT_FDASPL 10/05/2015
NDFRT FMTSME relationships NDFRT_FMTSME 10/05/2015
Veterans Health Administration National Drug File VANDF 08/20/2015


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 01/26/2015
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 349
Active BPCKs 399
Active SCDs 19717
Active SBDs 10550
Active RXNORM MINs 3980
Active RXNORM INs 10741
Active RXNORM PINs 2448
Active RXNORM BNs 6354
Active RXNORM DFs 113
Obsolete GPCKs 143
Obsolete BPCKs 127
Obsolete SCDs 15190
Obsolete SBDs 10068
Obsolete RXNORM MINs 0
Obsolete RXNORM INs 0
Obsolete RXNORM PINs 0
Obsolete RXNORM BNs 9354
Obsolete RXNORM DFs 53
Editor-suppressed SCDs 1253
Editor-suppressed SBDs 1130
Source-asserted NDCs 1156106
Distinct source-asserted NDCs 540202
Distinct SAB=RXNORM NDCs 208748

Last Reviewed: October 5, 2015