RxNorm Clinical Drug Intelligence
NLM clinical drug nomenclature mapping all drug names, forms, strengths to canonical RxCUI identifiers. The Rosetta Stone connecting FDA, CMS, FAERS, and clinical drug identities.
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Overview
NLM clinical drug nomenclature mapping all drug names, forms, strengths to canonical RxCUI identifiers. The Rosetta Stone connecting FDA, CMS, FAERS, and clinical drug identities.
Use authoritative registries as the stable join layer across drugs, genes, organizations, providers, and chemicals.
Resolve synonyms, deprecated codes, alternate names, and source-specific identifiers into canonical entities.
Improve match rates for every downstream product by applying deterministic and reviewed mapping rules.
Maintain identity lineage, version history, and confidence scores for audit-ready joins.
Source authority
National Library of Medicine — RxNorm
Freshness
Last refreshed 2026-09-01
Monthly
Coverage
200K+ concepts
2 delivery tables