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Unified Medical Language System® (UMLS®)

RxNorm Files

The license agreement required for the RxNorm releases is available from: https://www.nlm.nih.gov/databases/umls.html.

The terms and conditions for using RxNorm data is available on the RxNorm Terms of Service page: https://www.nlm.nih.gov/research/umls/rxnorm/docs/termsofservice.html.

RxNorm Full Monthly Release
April 1, 2024
RxNorm Weekly Updates
April 2024
RxNorm_full_04012024.zip
MD5 checksum: def16b5c78c3e055913797405ba1b15a

Release Notes 04/01/2024

RxNorm Technical Documentation
Current: RxNorm_weekly_04172024.zip
Source Update: MTHSPL - 04/13/2024
MD5 checksum: 9c99fb07df03aebd493802ef1a931b32

RxNorm_weekly_04102024.zip
Source Update: MTHSPL - 04/06/2024
MD5 checksum: 2212e16057fde8b1c69e42e5da857fe1

RxNorm_weekly_04032024.zip
Source Update: MTHSPL - 03/30/2024
MD5 checksum: ec85dc234616a9657be90042043f3ff8

Current Prescribable Content Monthly Release
April 1, 2024
Current Prescribable Content Weekly Updates
April 2024
RxNorm_full_prescribe_04012024.zip (no license required)
MD5 checksum: 8ff7d91a21d5e8f79e1c4a4a5459cf54

Release Notes 04/01/2024

Current Prescribable Content Documentation
Current: RxNorm_weekly_prescribe_04172024.zip
Source Update: MTHSPL - 04/13/2024
MD5 checksum: 57edbabe364e1ae46ebd4d4eff0fe68e

RxNorm_weekly_prescribe_04102024.zip
Source Update: MTHSPL - 04/06/2024
MD5 checksum: 0514f210bc5eeaba129d1107ed914be1

RxNorm_weekly_prescribe_04032024.zip
Source Update: MTHSPL - 03/30/2024
MD5 checksum: 2c260dddf4168110cc3c7f17e863b66c

 

RxNorm files are pipe-delimited text files in Rich Release Format (RRF) with the extension ".RRF". They do not require the use of the MetamorphoSys program provided with the UMLS Knowledge Sources Files. The character set of RxNorm release files is Unicode UTF-8. If you need assistance with these files, please e-mail the RxNorm team at: rxnorminfo@nlm.nih.gov. Please read the README file for the release, which is contained in the release zip package. For additional information about RxNorm releases, including scripts for loading the RxNorm data into Oracle and MySQL databases, read the RxNorm Technical Documentation.

For users who wish to automate the download of the RxNorm releases, steps are available here: https://documentation.uts.nlm.nih.gov/automating-downloads.html. The RxNorm files are also available through generic URLs with the word "current" instead of specific dates. See below for examples.

https://download.nlm.nih.gov/umls/kss/rxnorm/RxNorm_full_current.zip
https://download.nlm.nih.gov/umls/kss/rxnorm/RxNorm_weekly_current.zip



RxNorm Previous Releases

RxNorm files from May 2020 to the present contain data consistent with the 2020AA UMLS Metathesaurus

RxNorm_full_03042024.zip , Release Notes 03/04/2024
       RxNorm_full_prescribe_03042024.zip , Release Notes 03/04/2024

RxNorm_full_02052024.zip , Release Notes 02/05/2024
       RxNorm_full_prescribe_02052024.zip , Release Notes 02/05/2024

RxNorm_full_01022024.zip , Release Notes 01/02/2024
       RxNorm_full_prescribe_01022024.zip , Release Notes 01/02/2024

RxNorm_full_12042023.zip , Release Notes 12/04/2023
       RxNorm_full_prescribe_12042023.zip , Release Notes 12/04/2023

RxNorm_full_11062023.zip , Release Notes 11/06/2023
       RxNorm_full_prescribe_11062023.zip , Release Notes 11/06/2023

RxNorm_full_10022023.zip , Release Notes 10/02/2023
       RxNorm_full_prescribe_10022023.zip , Release Notes 10/02/2023

RxNorm_full_09052023.zip , Release Notes 09/05/2023
       RxNorm_full_prescribe_09052023.zip , Release Notes 09/05/2023

RxNorm_full_08072023.zip , Release Notes 08/07/2023
       RxNorm_full_prescribe_08072023.zip , Release Notes 08/07/2023

RxNorm_full_07032023.zip , Release Notes 07/03/2023
       RxNorm_full_prescribe_07032023.zip , Release Notes 07/03/2023

RxNorm_full_06052023.zip , Release Notes 06/05/2023
       RxNorm_full_prescribe_06052023.zip , Release Notes 06/05/2023

RxNorm_full_05012023.zip , Release Notes 05/01/2023
       RxNorm_full_prescribe_05012023.zip , Release Notes 05/01/2023

RxNorm_full_04032023.zip , Release Notes 04/03/2023
       RxNorm_full_prescribe_04032023.zip , Release Notes 04/03/2023

RxNorm_full_03062023.zip , Release Notes 03/06/2023
       RxNorm_full_prescribe_03062023.zip , Release Notes 03/06/2023

RxNorm_full_02062023.zip , Release Notes 02/06/2023
       RxNorm_full_prescribe_02062023.zip , Release Notes 02/06/2023

RxNorm_full_01032023.zip , Release Notes 01/03/2023
       RxNorm_full_prescribe_01032023.zip , Release Notes 01/03/2023

RxNorm Release Archives for 2005-2022

Last Reviewed: April 17, 2024