RxNorm Get Related Drugs

Overview

List all related drug products (branded names, generic products, ingredient names) for a drug RXCUI or name using the NLM RxNorm API. Returns grouped results by term type: Ingredient, Brand Name, Semantic Clinical Drug (generic product with dose/form), and Semantic Branded Drug (brand product). Useful for finding all brand names for a generic drug, or vice versa. No API key required. Example: metformin (RXCUI 6809) returns Glucophage, Glumetza, Fortamet as brand names plus dozens of generic products.

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed

1d ago

Last success

1d ago

Last latency

88ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "drug_name": {
      "description": "Drug name to look up if RXCUI is not known.",
      "type": "string"
    },
    "rxcui": {
      "description": "RxNorm Concept Unique Identifier. Use RxNorm_find_rxcui to resolve a drug name.",
      "type": "string"
    },
    "tty": {
      "default": "IN+BN+SBD+SCD",
      "description": "Space/plus-separated term types to include. Options: IN (ingredient), BN (brand name), SBD (branded drug), SCD (generic clinical drug), PIN (precise ingredient). Default: 'IN+BN+SBD+SCD'.",
      "type": "string"
    }
  },
  "type": "object"
}

Examples (1)

{}

Identifiers

Catalog ID

tu_RxNorm_get_related_drugs

Tool name

RxNorm_get_related_drugs

Added

2026-04-30 22:47Z

Tags

tooluniverse