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Unified Medical Language System® (UMLS®)

RxNorm Full Monthly Content Release Notes

August Release - 08/06/2018

This release of RxNorm is consistent with the 2018AA 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_2018_06_22
DrugBank DRUGBANK DRUGBANK5.0_2018_06_27
Gold Standard Drug Database GS GS_2018_06_28
Multum MediSource Lexicon MMSL MMSL_2018_07_01
Micromedex RED BOOK MMX MMX_2018_06_25
FDA Structured Product Labels MTHSPL MTHSPL_2018_07_27
FDB MedKnowledge (formerly NDDF Plus) NDDF NDDF_2018_07_04
RxNorm normalized names and codes RXNORM RXNORM_18AA_180806F
Veterans Health Administration National Drug File VANDF VANDF_2018_07_06

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

Source NameSABVersion
Anatomical Therapeutic Chemical Classification System ATC ATC_2018
Medical Subject Headings (MeSH) MSH MSH2018_2018_02_05
CMS Formulary Reference File MTHCMSFRF MTHCMSFRF_2014
Veterans Health Administration National Drug File - Reference Terminology NDFRT NDFRT_2018_02_05
US Edition of SNOMED CT (drug information) SNOMEDCT_US SNOMEDCT_US_2018_01_31

*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 GPCKs389
Active BPCKs474
Active SCDs18954
Active SBDs10402
Active RXNORM MINs3982
Active RXNORM INs11923
Active RXNORM PINs2770
Active RXNORM BNs6006
Active RXNORM DFs117
Obsolete GPCKs171
Obsolete BPCKs147
Obsolete SCDs16486
Obsolete SBDs10864
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs6099
Obsolete RXNORM DFs59
Editor-suppressed SCDs1806
Editor-suppressed SBDs1413
Distinct SAB=RXNORM NDCs244279

Last Reviewed: August 6, 2018