GET /rxcui/{rxcui}/related
Summary: Get related concepts
Operation ID: getRelatedConcepts
Auth: none
Operation ID: getRelatedConcepts
Auth: none
Description
Get concepts related to a specified concept by relationship type or term type
Parameters (3)
rela
(string, query, optional)
Relationship type (e.g., isa, has_ingredient, etc.)
rxcui
(string, path, required)
RxNorm Concept Unique Identifier
tty
(string, query, optional)
Term type filter
Examples (1)
| Title | Type | URL | Action |
|---|---|---|---|
| Get related concepts | openapi-spec |
https://rxnav.nlm.nih.gov/REST/rxcui/1191/related?rela=isa&tty=BN |
Probe History
Status Codes
| Time | Status | Latency | Size |
|---|---|---|---|
| 2026-03-23 10:49:51.444368 | 200 | 561ms |