Video Tutorials


  Using RxMix to Retrieve NDCs for an Ingredient: Interactive Mode
  Using RxMix to Retrieve NDCs for an Ingredient: Batch Mode
  Pre-Built Workflows in RxMix. Finding Drugs that May Treat a Disease


  Searching for Drug Classes using RxClass

RxNav Brand Names

Recent brand names added:

Capaction Combi-Pen-48
Exkivity Livmarli
Opzelura Photocil
Tivdak Tyrvaya

RxNav News

The APIs and tools are updated monthly following the RxNorm release. The RxNorm release schedule can be found at RxNorm Overview.

November 29, 2021

RxNav (2.9.55):

November 22, 2021

APIs (3.1.131):

  • API changes announced during 2021 are now available in a "Technology Preview" edition of RxNav-in-a-Box, a locally-installable version of RxNav, RxClass, RxMix, and RESTful companion APIs.

October 4, 2021

APIs (2.9.159):

  • Added BoSS_name, Active_ingredient_name, Active_moiety_name, and corresponding RxCUI properties to Semantic Clinical Drugs (SCD), projecting a summary of RxNorm's reorganized Basis of Strength Substance (BoSS) attributes. The properties are available from getAllProperties and getRxProperty. Meanwhile, getRxcuiHistoryStatus remains the API's primary function for RxNorm's BoSS details, and has not changed.

August 2, 2021

RxClass (3.1.51):

  • Expanded Disease tree in RxClass to include all MeSH 'Infections' and 'Behavior and Behavior Mechanisms' classes.

July 6, 2021


  • On or after October 4, 2021, 'NDFRT' will no longer be accepted as a synonym for 'MEDRT' by the RxClass API. (Medication Reference Terminology (MED-RT) supplanted the discontinued NDF-RT in RxClass in 2018.)
  • On or after October 4, 2021, the obsolete function getAllNDCs will be removed from the RxNorm API. Please use getAllHistoricalNDCs instead. getAllNDCs was deprecated in 2016.

June 7, 2021


  • On or after August 2, 2021: Query parameters will no longer be echoed in the APIs' responses. Details

April 5, 2021


  • Added RxMix to RxNav-in-a-Box.

March 25, 2021


  • On or after July 5, 2021: Some 'comment' fields will be removed from the APIs and approximate-match scores will be computed differently, among other changes. Details

November 2, 2020

RxNav (2.9.25), RxMix (2.0.40), APIs (2.9.133):

  • Searching by UMLS CUI is no longer available in RxNav or in the RxNorm or Prescribable API (/rxcui?idtype) as the UMLS CUI will not be contained in future RxNorm monthly releases.

October 5, 2020

APIs (2.9.132):

  • Added RxNorm API resource /allNDCstatus

July 6, 2020

RxNav (2.9.21), RxMix (2.0.37), APIs (2.9.121):

  • Added NHRIC codes to RxNav and the RxNorm API.
  • Added RxNorm API resources /historystatus and /allconceptsbystatus, supplanting the /status resource and the RxcuiHistory API. Those will be removed in January 2021. Details

April 10, 2020

APIs (2.9.121):

  • Clarified XML schemas for the RxNorm, RxTerms, Interaction, RxCUIHistory, and Prescribe APIs.

March 25, 2020

RxClass (3.1.22), RxMix (2.0.31), APIs (2.9.114):

  • Added CSA Drug Schedule classes to RxClass. RxNorm generic and branded drug products (term types SCD, SBD, GPCK, BPCK) that contain substances that are regulated under federal law are mapped into the five schedule classes.

March 5, 2020

RxMix (2.0.29):

  • Enabled access to SNOMED CT classes in RxMix via the RxClass functions.

January 23, 2020

RxNav, RxClass, RxMix, APIs:

  • Increased minimum HTTPS security level to TLS 1.2.

January 6, 2020

APIs (2.9.77):

  • Terminated SOAP access to the APIs. Please use the REST APIs. Details

For Older news, see RxNorm API - News

For the full news archive, see RxNav News Archive