May Release - 05/07/2012

This release of RxNorm is consistent with the 2012AA 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.

Sources

The following sources have been updated since the previous RxNorm release:

Source Name	SAB	Date Updated
Gold Standard Drug Database	GS	03/29/2012
Medi-Span Master Drug Data Base	MDDB	03/28/2012
Multum MediSource Lexicon	MMSL	04/01/2012
Micromedex RED BOOK	MMX	03/26/2012
Medical Subject Headings (MeSH)	MSH	02/01/2012
FDA Structured Product Labels	MTHSPL	04/26/2012
FDB MedKnowledge (formerly NDDF Plus)	NDDF	03/28/2012
Veterans Health Administration National Drug File - Reference Terminology	NDFRT	05/07/2012
Veterans Health Administration National Drug File	VANDF	03/22/2012

 

The following sources have not been updated since the previous RxNorm release:

Source Name	SAB	Date Updated
FDA National Drug Code Directory	MTHFDA	06/01/2011
SNOMED Clinical Terms (drug information)	SNOMEDCT	01/31/2012

 

Data Changes

There are no significant data changes for this release.

Data Counts

Term Type or Attribute	Number
Active GPCK forms	322
Active BPCK forms	406
Active SCD forms	20,726
Active SBD forms	17,100
Active RXNORM MIN atoms	3,739
Active RXNORM IN atoms	5,017
Active RXNORM PIN atoms	1,572
Active RXNORM BN atoms	15,777
Active RXNORM DF atoms	102
Obsolete GPCK forms	71
Obsolete BPCK forms	42
Obsolete SCD forms	12,961
Obsolete SBD forms	3,821
Obsolete RXNORM MIN atoms	0
Obsolete RXNORM IN atoms	0
Obsolete RXNORM PIN atoms	0
Obsolete RXNORM BN atoms	0
Obsolete RXNORM DF atoms	53
OCD atoms	297,349
Source-asserted NDC codes	1,063,612
Distinct Source-asserted NDC codes	500,879
SAB=RXNORM NDC codes	263,941
Distinct SAB=RXNORM NDC codes	263,941

Last Reviewed: May 7, 2012