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Provider
RxNorm (NIH / NLM)
RxNorm drug concepts keyed by RxCUI, with term type, ingredients, brand names, related clinical drugs, package NDCs and the FDA UNII of ingredient concepts. No key; paced under NLM's 20 requests per second.
- Kind
- Data source
- Supplies
- rxnorm_concept
- Status
- active
- Endpoints
- 6
- Provider id
- rxnorm
- Kind
- Data source
- Supplies
- rxnorm_concept
- Pull mode
- live
- Caller-supplied records
- Accepted
- Default source
- live
- Sync sources
- payload, live
- Most records per sync
- 100
- Registry status
- active
- Registry updated
- Sun 4 Oct 2026 22:30:19 UTC
Endpoints
| Endpoint | Method | Address | What it returns |
|---|---|---|---|
| resolve | GET | https://rxnav.nlm.nih.gov/REST/rxcui.json?name={name}&search=2 | RxCUIs for a name; an empty idGroup when none |
| approximate | GET | https://rxnav.nlm.nih.gov/REST/approximateTerm.json?term={name}&maxEntries={n} | Ranked candidates for a name the exact lookup does not know |
| properties | GET | https://rxnav.nlm.nih.gov/REST/rxcui/{rxcui}/properties.json | Name, synonym and term type of a concept |
| allrelated | GET | https://rxnav.nlm.nih.gov/REST/rxcui/{rxcui}/allrelated.json | Related concepts grouped by term type |
| ndcs | GET | https://rxnav.nlm.nih.gov/REST/rxcui/{rxcui}/ndcs.json | 11-digit NDCs of a clinical or branded drug or pack |
| unii | GET | https://rxnav.nlm.nih.gov/REST/rxcui/{rxcui}/property.json?propName=UNII_CODE | The FDA UNII of an ingredient concept |
Recent runs
No run of this provider is among the 200 most recent runs on this node.