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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

June Release - 06/03/2013

This release of RxNorm is consistent with the 2013AA 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 05/09/2013
Medi-Span Master Drug Data Base MDDB 05/08/2013
Multum MediSource Lexicon MMSL 05/01/2013
Micromedex RED BOOK MMX 05/07/2013
FDA Structured Product Labels MTHSPL 05/24/2013
FDB MedKnowledge (formerly NDDF Plus) NDDF 05/08/2013
Veterans Health Administration National Drug File - Reference Terminology NDFRT 06/03/2013
Veterans Health Administration National Drug File VANDF 04/22/2013


The following sources have not been updated in this release:

Source NameSABDate Updated
Medical Subject Headings (MeSH) MSH 01/21/2013
FDA National Drug Code Directory MTHFDA 06/01/2011
SNOMED Clinical Terms (drug information) SNOMEDCT 01/31/2013

Data Changes

There are no significant data changes in this release.

Data Counts

Term Type or AttributeNumber
Active GPCK forms 329
Active BPCK forms 402
Active SCD forms 19,989
Active SBD forms 10,952
Active RXNORM MIN atoms 3,831
Active RXNORM IN atoms 8,579
Active RXNORM PIN atoms 2,061
Active RXNORM BN atoms 6,879
Active RXNORM DF atoms 104
Obsolete GPCK forms 115
Obsolete BPCK forms 92
Obsolete SCD forms 13,765
Obsolete SBD forms 9,547
Obsolete RXNORM MIN atoms 0
Obsolete RXNORM IN atoms 0
Obsolete RXNORM PIN atoms 0
Obsolete RXNORM BN atoms 8,715
Obsolete RXNORM DF atoms 51
Editor-suppressed SCD forms 1,083
Editor-suppressed SBD forms 899
OCD atoms 310,232
Source-asserted NDC codes 1,234,628
Distinct Source-asserted NDC codes 553,301
SAB=RXNORM NDC codes 195,107
Distinct SAB=RXNORM NDC codes 195,107

Last Reviewed: June 3, 2013