R
RxNorm
Data by U.S. National Library of Medicine
Access U.S. National Library of Medicine RxNorm data for standardized drug names, identifiers, cross-vocabulary codes, and drug classifications.
healthcare, drugs, pharmacy, rxnorm, nlm
WebsiteTry a search
Tools (7)
- findDrugByNameResolve a drug name to its RxNorm Concept Unique Identifier (RxCUI). Tries exact match first, then a diacritic-normalized lookup, then an approximate-match fallback so French/non-English INNs still resolve. Use the returned rxcuis with getAllRelatedConcepts, getConceptProperties, or getRelatedByType.1 credit
- getConceptPropertiesRetrieve cross-reference codes and properties for one or more RxCUIs — ATC, DrugBank, SNOMED CT, NDC codes, and more. Use this to map RxNorm concepts to identifiers in other drug databases.1 credit
- getDrugProductsGet all drug products (branded and generic formulations) for a drug name, grouped by term type (SCD, SBD, GPCK, BPCK). Use this to discover formulations, strengths, and brands.1 credit
- getRelatedByTypeGet related RxNorm concepts filtered by specific term types for one or more RxCUIs. More targeted than getAllRelatedConcepts — use this when you only need specific types (e.g., branded_drug, clinical_drug, ingredient).1 credit
- getDrugClassesGet drug classification information for one or more drug names. Returns classifications from ATC, VA, MeSH, and MedRT (mechanism of action, physiologic effect, pharmacologic class). Results are attributed to the input drug name via the `query` field.1 credit
- getAllRelatedConceptsRetrieve all related RxNorm concepts for one or more RxCUIs, grouped by term type (ingredients, brands, clinical drugs, dose forms, packs). Use this to explore the full RxNorm graph for drug concepts.1 credit
- getDrugClassesByRxcuiGet drug classifications (ATC, VA, MeSH, MedRT) for one or more RxNorm RxCUIs. Resolves RxCUIs (e.g. the rxcuis from openfda-mcp) to ATC codes for cross-MCP drug joins.Free