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Unified Medical Language System® (UMLS®)

RxNorm Current Prescribable Content Release Notes

November Release - 11/07/2011

This RxNorm Current Prescribable Content release is consistent with the 2011AA 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.

Data Changes

TTY=BN Human/Vet Attributes:
TTY=BN atoms will no longer carry the RXN_HUMAN_DRUG or RXN_VET_DRUG attributes, which denote drugs that are intended for human and/or veterinary use. These attributes will remain attached to the TTY=SBD atoms that are related to the TTY=BN atoms via the 'ingredient_of/has_ingredient' RELA.

Dose Form Group Relationships:
A few of the relationship attributes (RELA) for the recently-released dose form group term types (TTY) have changed to better reflect the relationships between these types of concepts. The following table includes the updated RELAs:

DF isa DFG
DFG inverse_isa DF
SBDG inverse_isa SBDF
SCDG inverse_isa SCDF

Data Counts

Term Type or AttributeNumber
Active GPCK forms 285
Active BPCK forms 358
Active SCD forms 15,602
Active SBD forms 10,172
Active RXNORM MIN atoms 1,498
Active RXNORM IN atoms 2,978
Active RXNORM PIN atoms 424
Active RXNORM BN atoms 6,302
Active RXNORM DF atoms 98
SAB=RXNORM NDC codes 235,496
Distinct SAB=RXNORM NDC codes 235,496

Last Reviewed: November 7, 2011