GET /REST/allconcepts

nih.gov:rxnorm-api

Summary: Get concepts by term type
Operation ID: getConceptsByTermType
Auth: none
Description

Returns concepts having a specified term type.

Parameters (1)

tty (string, query, required)

The term type (e.g., IN, SCD, SBD, BN)

Examples (3)

TitleTypeURLAction
Get all Ingredient concepts curl https://rxnav.nlm.nih.gov/REST/allconcepts?tty=IN
Get all Brand Name concepts curl https://rxnav.nlm.nih.gov/REST/allconcepts?tty=BN
Get all Semantic Clinical Drug concepts curl https://rxnav.nlm.nih.gov/REST/allconcepts?tty=SCD

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-03-23 10:41:59.794798 200 746ms 1.7MB
2026-03-23 10:26:04.259572 200 825ms
2026-03-23 09:26:04.865740 200 741ms 1.0MB

Response Changes

WhenOldNew
2026-03-23 10:26:04.259572 2ec782cf7021 27cdbc9e9d96
2026-03-23 10:41:59.794798 27cdbc9e9d96 286fe9c6f2d9