April Release - 04/02/2012

This release of RxNorm is consistent with the 2011AB 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	03/06/2012
Medi-Span Master Drug Data Base	MDDB	03/07/2012
Multum MediSource Lexicon	MMSL	03/01/2012
Micromedex RED BOOK	MMX	03/05/2012
FDA Structured Product Labels	MTHSPL	03/23/2012
FDB MedKnowledge (formerly NDDF Plus)	NDDF	03/07/2012
Veterans Health Administration National Drug File - Reference Terminology	NDFRT	04/02/2012
Veterans Health Administration National Drug File	VANDF	02/27/2012

 

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

Source Name	SAB	Date Updated
Medical Subject Headings (MeSH)	MSH	09/09/2011
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	321
Active BPCK forms	404
Active SCD forms	20,702
Active SBD forms	17,114
Active RXNORM MIN atoms	3,737
Active RXNORM IN atoms	5,018
Active RXNORM PIN atoms	1,570
Active RXNORM BN atoms	15,735
Active RXNORM DF atoms	102
Obsolete GPCK forms	72
Obsolete BPCK forms	41
Obsolete SCD forms	13,014
Obsolete SBD forms	3,828
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	296,600
Source-asserted NDC codes	1,058,495
Distinct Source-asserted NDC codes	497,989
SAB=RXNORM NDC codes	261,297
Distinct SAB=RXNORM NDC codes	261,297

Last Reviewed: April 23, 2012