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Unified Medical Language System® (UMLS®)

RxNorm Full Monthly Content Release Notes

October Release - 10/01/2018

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_09_12
DrugBank DRUGBANK DRUGBANK5.0_2018_08_31
Gold Standard Drug Database GS GS_2018_09_04
Multum MediSource Lexicon MMSL MMSL_2018_09_01
Micromedex RED BOOK MMX MMX_2018_09_04
FDA Structured Product Labels MTHSPL MTHSPL_2018_09_21
FDB MedKnowledge (formerly NDDF Plus) NDDF NDDF_2018_09_05
RxNorm normalized names and codes RXNORM RXNORM_18AA_181001F
USP Compendial Nomenclature USP USP_2018_09_19
Veterans Health Administration National Drug File VANDF VANDF_2018_08_31

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_07_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 GPCKs393
Active BPCKs481
Active SCDs18150
Active SBDs10388
Active RXNORM MINs3988
Active RXNORM INs12011
Active RXNORM PINs2792
Active RXNORM BNs5975
Active RXNORM DFs117
Obsolete GPCKs179
Obsolete BPCKs152
Obsolete SCDs17518
Obsolete SBDs10946
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs6154
Obsolete RXNORM DFs59
Editor-suppressed SCDs1687
Editor-suppressed SBDs1430
Distinct SAB=RXNORM NDCs247840

Last Reviewed: October 1, 2018