MED-RT data will replace NDF-RT data in RxClass and RxNav on June 4, 2018
  • RxNav

    RxNav is a browser for several drug information sources, including RxNorm, RxTerms and NDF-RT. RxNav finds drugs in RxNorm from the names and codes in its constituent vocabularies.

    rxnav formview image ndfrt moa image rxnav simplified image mesh pa image mesh diazepam  image ndfrt drug image pill imageatc aspirin image atc ammonium image
  • APIs

    Application Program Interfaces (APIs) are available to users to retrieve data from several drug information sources, including RxNorm, NDF-RT and RxTerms.

    Currently there are seven APIs available - RxNorm, Prescribable RxNorm, RxClass, NDF-RT, RxTerms, RxCUI History and Drug Interaction

    NDF-RT graph Aug 2015 rxnormapi call function Sep 2015
  • RxMix

    RxMix is a web application that allows users to combine functions from eight different APIs to create custom applications that can be run interactively or in a batch mode.

    rxmix flow imagerxmix output image
  • RxClass

    The RxClass Browser is a web application for exploring and navigating through the class hierarchies to find the RxNorm drug members associated with each class.

    rxclass browser image rxclass selection image rxclass Venn diagram

RxNav brand names

Future RxNav, RxClass changes

MED-RT is replacing NDF-RT as the source of drug-class relations. This will impact the RxNav and RxClass applications. Learn more

New Fields in ndcstatus

Several new fields have been added to the RESTful resource ndcstatus in the RxNorm API to provide more information about the National Drug Codes (NDCs).

Video Tutorials



RxCUI History in RxMix

The RxCUI History API is now available in RxMix. This API allows users to get information about any RxNorm concept which has ever been part of the RxNorm data since 2005 when RxNorm was first publically available.

New Search Types in RxNav, RxNorm API

RxNav and the RxNorm API have added new search types:
  • ANADA - FDA Abbreviated New Animal Drug Application identifier
  • BLA - FDA Biological Licence Application identifier
  • HCPCS - Healthcare Common Procedure Coding System codes
  • NADA - FDA New Animal Drug Application identifier
RxNorm API (REST) examples
RxNorm API (SOAP) examples

API Usage RxNorm (March 2018) Other APIs (March 2018)
By Year: 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011