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RxNorm Release Notes

November Release - 11/07/2022

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_2022_10_24
DrugBank DRUGBANK DRUGBANK5.0_2022_10_05
Gold Standard Drug Database GS GS_2022_10_07
Multum MediSource Lexicon MMSL MMSL_2022_10_01
Micromedex RED BOOK MMX MMX_2022_10_03
Medical Subject Headings (MeSH) MSH MSH2023_2022_07_27
FDA Structured Product Labels MTHSPL MTHSPL_2022_10_27
FDB MedKnowledge (formerly NDDF Plus) NDDF NDDF_2022_10_05
RxNorm normalized names and codes RXNORM RXNORM_20AA_221107F
Veterans Health Administration National Drug File VANDF VANDF_2022_09_30

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

Source NameSABVersion
Anatomical Therapeutic Chemical Classification System ATC ATC_2022
CMS Formulary Reference File MTHCMSFRF MTHCMSFRF_2020
US Edition of SNOMED CT (drug information) SNOMEDCT_US SNOMEDCT_US_2022_07_31
USP Compendial Nomenclature USP USP_2022_09_14

*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:

RxNorm Data Changes

No major changes to report for the November 2022 release.

Related News

Download any RxNorm, SNOMED CT, or UMLS Release using a Single Command

A new application programming interface (API) endpoint is available for automating downloads of RxNorm, SNOMED CT, and Unified Medical Language System (UMLS) release files. Simply provide the URL and your API key.

  • The base URI is

Here are examples to download RxNorm Weekly Updates:


curl example:

curl "" -o

For more information, see the UMLS API Technical Documentation page.

Data Counts

Term Type or AttributeNumber
Active GPCKs472
Active BPCKs542
Active SCDs17265
Active SBDs9422
Active RXNORM MINs3776
Active RXNORM INs13897
Active RXNORM PINs3315
Active RXNORM BNs5072
Active RXNORM DFs122
Obsolete GPCKs256
Obsolete BPCKs219
Obsolete SCDs18774
Obsolete SBDs11298
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs6228
Obsolete RXNORM DFs63
Editor-suppressed SCDs1910
Editor-suppressed SBDs1578
Distinct SAB=RXNORM NDCs245788

Last Reviewed: November 7, 2022