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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

August Release - 08/04/2014

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 07/09/2014
Medi-Span Master Drug Data Base MDDB 07/09/2014
Multum MediSource Lexicon MMSL 07/01/2014
Micromedex RED BOOK MMX 07/07/2014
FDA Structured Product Labels MTHSPL 07/24/2014
FDB MedKnowledge (formerly NDDF Plus) NDDF 07/16/2014
Veterans Health Administration National Drug File VANDF 06/19/2014


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
Veterans Health Administration National Drug File - Reference Terminology NDFRT 07/07/2014
NDFRT FDASPL relationships NDFRT_FDASPL 07/07/2014
NDFRT FMTSME relationships NDFRT_FMTSME 07/07/2014
US Edition of SNOMED CT (drug information) SNOMEDCT_US 01/31/2014

Data Changes

Prescribable Names:
Building upon last month's release of prescribable names (TTY=PSN), the August release includes prescribable names for many drugs with cream and lotion dose forms.

RXNREL Suppress Values:
The SUPPRESS field in RXNREL is no longer being populated. In previous RxNorm releases, while most rows included no SUPPRESS value, some rows mistakenly included a SUPPRESS='N' value. Because RxNorm editors do not suppress any relationships in RXNREL, the SUPPRESS field is no longer being populated. The SUPPRESS field for all rows is null.

Data Counts

Term Type or AttributeNumber
Active GPCKs 342
Active BPCKs 428
Active SCDs 19733
Active SBDs 10821
Active RXNORM MINs 3891
Active RXNORM INs 9937
Active RXNORM PINs 2281
Active RXNORM BNs 6735
Active RXNORM DFs 103
Obsolete GPCKs 119
Obsolete BPCKs 111
Obsolete SCDs 14571
Obsolete SBDs 10337
Obsolete RXNORM MINs 0
Obsolete RXNORM INs 0
Obsolete RXNORM PINs 0
Obsolete RXNORM BNs 9460
Obsolete RXNORM DFs 57
Editor-suppressed SCDs 1071
Editor-suppressed SBDs 939
OCD atoms 329875
Source-asserted NDCs 1305790
Distinct source-asserted NDCs 589869
Distinct SAB=RXNORM NDCs 202370

Last Reviewed: August 4, 2014