RxNorm Query Skill

Look up clinical drug information via the RxNorm REST API (no API key required).

Capabilities

Function	Input	Returns
find_rxcui(name)	drug name string	RxCUI string or None
get_drug_info(rxcui)	RxCUI string	full info dict
get_drug_interactions(rxcui)	RxCUI string	list of interaction dicts
get_related_drugs(rxcui, tty)	RxCUI + term type	list of related drug dicts
normalize_drug_name(name)	approximate drug string	normalized name string
query(entity)	str or list[str]	dict keyed by drug name
summarize(results)	output of query()	compact text summary

Quick Start

from 08_RxNorm import query, summarize

# Single drug
results = query("aspirin")
print(summarize(results))

# Batch drugs
results = query(["tylenol", "metformin", "ibuprofen"])
print(summarize(results))

query() Output Schema

{
  "<drug_name>": {
    "rxcui": "1191" | None,
    "normalized_name": "aspirin",
    "interactions": [
      {"description": "...", "severity": "...", "drugs": ["...", "..."]}
    ],
    "related": [
      {"rxcui": "...", "name": "...", "tty": "..."}
    ]
  }
}

Notes

• API: RxNorm REST — https://rxnav.nlm.nih.gov/REST
• Auth: None required
• Rate limits: NLM asks for reasonable use; no hard key-based limit
• Related drug types (tty): BN (brand name), SBD (branded dose), SCD (clinical dose), etc.