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License status and Mdexa hosting, recorded separatelyAll datasets

RxNorm

Verified by Mdexa · Checked against the source text under public rules.How we check

Commercial use
Conditional
Derivatives
UnclearUnstated
Redistribution
Conditional
File on Mdexa
NoLink only

a restricted part cannot be separated or the boundary is unstated: strictest part applies

RestrictedLink onlyLicenseRef-National-Library-of-Medicine-termsSave

Badge

Mdexa verified · Restricted · 2026-11Mdexa verifiedRestricted · 2026-11

[![Mdexa verified · Restricted · 2026-11](https://mcp.mdexa.com/v1/badge/datasets/rxnorm.svg)](https://mdexa.com/datasets/rxnorm/)

Place it on a repository or dataset page; the status and date follow the verification. About badges

Cite this pageMdexa, RxNorm, https://mdexa.com/datasets/rxnorm/, verified 2026-11-13.

Source riskDerived

Key facts

Domain
Pharmacy and drugs · Standards and terminology Modern medicine · Cross-cutting
Content
Terminologies and coding systemsRxNorm provides normalized names for clinical drugs and links its names to many of the drug vocabularies commonly used in pharmacy management and drug interaction software.
Size
—
Language / modality
English / Text
Publisher
National Library of Medicine
Year
—
Expert review
—
Verification
Verified: license text seen

Commercial use of RxNorm

Commercial use: Conditional. The overall verdict takes the strictest part; the parts carry different licenses, listed below. License status: Restricted.

Conditions
Keep current
License part
main data — Restricted (LicenseRef-PublicDomain)
License part
RxNorm terminology normalized names and codes (e.g. RXCUI) — Permissive (LicenseRef-PublicDomain)
License part
proprietary data from various terminology providers — Restricted (NOASSERTION)

Quoted statements and their sources are in RxNorm license evidence.

Verdicts record what sources state and are not legal advice.

Tags

Task format
Term normalization
Intended use
Retrieval knowledge base
Specialty
Pharmacy
Source type
Built from a knowledge baseOfficial publication

Author-statedInferredHuman-confirmed

RxNorm license evidence 9

  1. Terms of use pagePage opened
    Third-party text · Terms of use pageThe full RxNorm dataset includes government-created and proprietary names and codes for clinical drugs. A free UMLS license is required to download the full RxNorm monthly and weekly releases.

    Statement found in snapshot s02 (page)

    nlm.nih.gov2026-11-12 · s02
  2. Site policy pagePage opened
    Third-party text · Site policy pageThe RxNorm terminology normalized names and codes (e.g. RXCUI) within the RxNorm dataset is created by the National Library of Medicine (NLM) and is in the public domain as it is created by the U.S. government.

    Statement found in snapshot s02 (page)

    nlm.nih.gov2026-11-12 · s02
  3. Site policy pagePage opened
    Third-party text · Site policy pagePublic domain information may be freely distributed and copied within and outside the U.S., but it is requested that in any subsequent use, NLM be given appropriate acknowledgement.

    Statement found in snapshot s02 (page)

    nlm.nih.gov2026-11-12 · s02
  1. Terms of use pagePage opened
    Third-party text · Terms of use pageThe full RxNorm dataset includes proprietary data from various terminology providers , each with a specific Source Restriction Level (SRL) category.

    Statement found in snapshot s02 (page)

    nlm.nih.gov2026-11-12 · s02
  2. Terms of use pagePage opened
    Third-party text · Terms of use pagemake known in a clear and conspicuous manner that the products/services/applications do not reflect the most current/accurate data available from NLM.

    Statement found in snapshot s02 (page)

    nlm.nih.gov2026-11-12 · s02
  3. Site policy pagePage opened
    Third-party text · Site policy pageWorks produced by the U.S. government are not subject to copyright protection in the United States. Any such works found on National Library of Medicine (NLM) Web sites may be freely used or reproduced without permission in the U.S.

    Statement found in snapshot s03 (terms-page)

    nlm.nih.gov2026-11-13 · s03
  4. Site policy pagePage opened
    Third-party text · Site policy pageTransmission or reproduction of copyrighted items (beyond that allowed by fair use as defined in the U.S. copyright laws) requires the written permission of the copyright holders.

    Statement found in snapshot s03 (terms-page)

    nlm.nih.gov2026-11-13 · s03
  5. Terms of use pagePage opened
    Third-party text · Terms of use pageSection 12 of the Unified Medical Language System (UMLS) license agreement describes the categories and specific restrictions on how a terminology can be used.

    Statement found in snapshot s02 (page)

    nlm.nih.gov2026-11-12 · s02
  6. Upstream termsPage opened
    Third-party text · Upstream termsLICENSEE is prohibited from distributing the UMLS Metathesaurus or subsets of it, including individual vocabulary sources within the Metathesaurus, except (a) as an integral part of computer applications developed by LICENSEE for a purpose other than redistribution of vocabulary sources contained in

    Upstream UMLS Metathesaurus: terms cited from the snapshot of card umls

    nlm.nih.gov2026-11-13 · s01

Source and lineage

  • Derived fromUMLS Metathesaurusnot in the database

Known issues with RxNorm

  • Downloading the full RxNorm monthly and weekly releases requires a free UMLS license.
  • The full dataset mixes public-domain NLM names and codes with proprietary terminology data that carries source-specific restrictions.

Preflight

Not run Runs only on ingested data; says nothing about quality.

Downloading RxNorm and API access

No file on Mdexa (see the verdict). Get it from the source and confirm the terms there:

Citing RxNorm

Mdexa, RxNorm, https://mdexa.com/datasets/rxnorm/, verified 2026-11-13.
More citation details

The source gives no citation text; the line above cites this card.

  • 10.1136/amiajnl-2011-000116

Machine-readable

rxnorm.jsonrxnorm.mdcatalog.json

Change log 1
2026-11-13Listed on 2026-11-13. Judged by public rules and checked a second time before listing.

Listed in

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