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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

August Release - 8/05/2019

This release of RxNorm is consistent with the 2019AA 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 with version names in bold have been updated since the previous RxNorm release:

Source NameSABVersion
Vaccines Administered CVX CVX_2019_06_25
DrugBank DRUGBANK DRUGBANK5.0_2019_06_27
Gold Standard Drug Database GS GS_2019_07_12
Multum MediSource Lexicon MMSL MMSL_2019_07_01
Micromedex RED BOOK MMX MMX_2019_07_08
FDA Structured Product Labels MTHSPL MTHSPL_2019_07_26
FDB MedKnowledge (formerly NDDF Plus) NDDF NDDF_2019_07_17
RxNorm normalized names and codes RXNORM RXNORM_19AA_190805F
Veterans Health Administration National Drug File VANDF VANDF_2019_06_28

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

Source NameSABVersion
Anatomical Therapeutic Chemical Classification System ATC ATC_2019
Medical Subject Headings (MeSH) MSH MSH2019_2019_01_07
CMS Formulary Reference File MTHCMSFRF MTHCMSFRF_2014
US Edition of SNOMED CT (drug information) SNOMEDCT_US SNOMEDCT_US_2019_01_31
USP Compendial Nomenclature USP USP_2018_12_10

*Reminder: As of October 2017, Medi-Span data will not be included in the RxNorm or UMLS releases. If you have questions about Medi-Span, please contact:

Data Counts

Term Type or AttributeNumber
Active GPCKs419
Active BPCKs515
Active SCDs18478
Active SBDs10355
Active RXNORM MINs3815
Active RXNORM INs12319
Active RXNORM PINs2867
Active RXNORM BNs5880
Active RXNORM DFs118
Obsolete GPCKs196
Obsolete BPCKs168
Obsolete SCDs16561
Obsolete SBDs10949
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs6236
Obsolete RXNORM DFs61
Editor-suppressed SCDs1771
Editor-suppressed SBDs1466
Distinct SAB=RXNORM NDCs249004

Last Reviewed: August 5, 2019