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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

October Release - 10/07/2019

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_09_13
DrugBank DRUGBANK DRUGBANK5.0_2019_09_03
Gold Standard Drug Database GS GS_2019_09_16
Multum MediSource Lexicon MMSL MMSL_2019_09_01
Micromedex RED BOOK MMX MMX_2019_09_03
FDA Structured Product Labels MTHSPL MTHSPL_2019_09_27
FDB MedKnowledge (formerly NDDF Plus) NDDF NDDF_2019_09_18
RxNorm normalized names and codes RXNORM RXNORM_19AA_191007F
Veterans Health Administration National Drug File VANDF VANDF_2019_08_30

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_07_31
USP Compendial Nomenclature USP USP_2019_08_19

*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 GPCKs417
Active BPCKs508
Active SCDs18443
Active SBDs10291
Active RXNORM MINs3814
Active RXNORM INs12367
Active RXNORM PINs2910
Active RXNORM BNs5838
Active RXNORM DFs118
Obsolete GPCKs202
Obsolete BPCKs175
Obsolete SCDs16625
Obsolete SBDs10982
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs6255
Obsolete RXNORM DFs61
Editor-suppressed SCDs1761
Editor-suppressed SBDs1471
Distinct SAB=RXNORM NDCs248688

Last Reviewed: October 7, 2019