May Release - 05/03/2010

This release of RxNorm is consistent with the 2010AA UMLS Metathesaurus release. For additional information about RxNorm releases, including scripts for loading the RxNorm data into Oracle and MySQL databases, read the RxNorm Documentation.

Sources

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

Source Name	SAB	Date Updated
Gold Standard Alchemy	GS	04/01/2010
Medi-Span Master Drug Data Base	MDDB	03/31/2010
Multum MediSource Lexicon	MMSL	04/01/2010
Micromedex DRUGDEX	MMX	03/29/2010
FDA Structured Product Labels	MTHSPL	04/26/2010
First DataBank NDDF Plus Source Vocabulary	NDDF	04/02/2010
Veterans Health Administration National Drug File	VANDF	03/29/2010

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

Source Name	SAB	Date Updated
FDA National Drug Code Directory	MTHFDA	03/01/2010
Medical Subject Headings (MeSH)	MSH	08/17/2009
SNOMED Clinical Terms (drug information)	SNOMED CT	01/31/2009

Data Changes

There are no significant data changes for this release.

Data Counts

Term Type or Attribute	Number
Active GPCK forms	277
Active BPCK forms	351
Active SCD forms	18,808
Active SBD forms	15,573
Active RXNORM IN atoms	4,848
Active RXNORM PIN atoms	1,520
Active RXNORM BN atoms	13,671
Active RXNORM DF atoms	100
Obsolete GPCK forms	37
Obsolete BPCK forms	12
Obsolete SCD forms	12,796
Obsolete SBD forms	3,958
Obsolete RXNORM IN atoms	0
Obsolete RXNORM PIN atoms	0
Obsolete RXNORM BN atoms	0
Obsolete RXNORM DF atoms	55
OCD atoms	259,713
Source-asserted NDC codes	550,659
Distinct Source-asserted NDC codes	339,290
SAB=RXNORM NDC codes	285,835
Distinct SAB=RXNORM NDC codes	285,835

Last Reviewed: May 3, 2010