ATTENTION: new policy on API usage effective December 15, 2014 - please check Terms of Service
  • 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.

    Launch RxNav
    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 six APIs available - RxNorm, Prescribable RxNorm, RxClass, NDF-RT RxTerms and Drug Interaction

    NDF-RT graph Dec 2013 rxnormapi call function Dec 2013
  • RxMix

    RxMix is a web application that allows users to combine functions from the RxNorm, NDF-RT and RxTerms 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 imagerxclass selection image

RxNav brand names

Notice to API Users

We are pleased to report that API usage has dramatically increased in 2014. To accomodate the increased usage and our many new users, we have changed our Terms of Service

Java 7 required for RxNav

Users who are currently running RxNav with Java version 6 will need to upgrade to Java 7 or greater sometime in the first quarter of 2015 when the next update to RxNav is expected.

The RxClass API is here!

The RxClass API is a web service for accessing drug classes and associated drug members. The RxClass Browser uses the API for exploring and navigating through the class hierarchies to find the RxNorm drug members associated with each class. The RxClass API is available as both a SOAP interface and as RESTful resources.
More details...

API Usage RxNorm (November 2014) NDF-RT (November 2014)
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By Year: 2014 | 2013 | 2012 | 2011