healthcare.dev docs
API referenceDrugs

Search drugs across RxNorm and NDC

GET /v1/drugs/search

GET https://api.healthcare.dev/v1/drugs/search

Searches RxNorm concepts and FDA NDC products together, ranked by match_score across both (RxNorm first on ties); limit applies to each source.

Requires an API key: Authorization: Bearer hdev_live_.... See Authentication.

Query parameters

NameTypeRequiredDescriptionExample
qstringyesSearch text (fuzzy)diabetes
limitintegernoPage size (max 100)25
view"compact" | "full"nocompact returns only the fields an agent usually needs (fewer tokens); full (default) returns every fieldcompact
fieldsstringnoComma-separated record fields to return, e.g. code,display,billablecode,display,billable

Examples

curl

curl "https://api.healthcare.dev/v1/drugs/search?q=diabetes&limit=25" \
  -H "Authorization: Bearer $HDEV_API_KEY"

TypeScript

const res = await fetch("https://api.healthcare.dev/v1/drugs/search?q=diabetes&limit=25", {
  headers: { Authorization: `Bearer ${process.env.HDEV_API_KEY}` },
});
const { data, meta } = await res.json();

Python

import os
import requests

res = requests.get("https://api.healthcare.dev/v1/drugs/search?q=diabetes&limit=25", headers={"Authorization": f"Bearer {os.environ['HDEV_API_KEY']}"})
body = res.json()

Try it

GEThttps://api.healthcare.dev/v1/drugs/search?q=diabetes&limit=25&view=compact&fields=code%2Cdisplay%2Cbillable
Get a free key
Copy as curl
curl "https://api.healthcare.dev/v1/drugs/search?q=diabetes&limit=25&view=compact&fields=code%2Cdisplay%2Cbillable" \
  -H "Authorization: Bearer $HDEV_API_KEY"

Response

Hits

{
  "data": [
    {
      "type": "rxnorm",
      "id": "861007",
      "name": "metformin hydrochloride 500 MG Oral Tablet",
      "tty": "SCD",
      "labeler": null
    }
  ],
  "meta": {
    "source": "cms-icd10",
    "data_version": "2026.1",
    "retrieved_at": "2026-10-24T12:00:00Z",
    "license": "Public domain (CMS). Reference data, not medical advice."
  },
  "links": {
    "self": "/v1/drugs/search?q=diabetes&limit=25",
    "next": "/v1/drugs/search?q=diabetes&limit=25&cursor=eyJrIjoiRTExLjkifQ"
  }
}

Fields

FieldTypeAlways presentDescription
type"rxnorm" | "ndc"yes
idstringyesRxCUI or product NDC
namestringyes
ttystring | nullyesRxNorm term type (rxnorm hits)
labelerstring | nullyesLabeler (ndc hits)
match_scorenumberyesHow well this result matches the query: 1 exact code or id, 0.9 code prefix, 0.5 to 0.9 every query word in the text (higher is closer), under 0.5 a fuzzy (typo-tolerant) match. Below 0.5, check the result before relying on it.

Errors

Errors are application/problem+json (RFC 9457). Branch on type, not on title. See Errors.

StatustypeWhen
400invalid-requestA parameter or the body failed validation; errors lists each field.
401unauthorizedMissing, malformed or revoked API key.
404not-foundNo record with that id (retired records are still returned).
429rate-limited / quota-exceededToo many requests per second (retry after Retry-After), or the monthly quota is used up.
503dataset-unavailable / unavailableThe dataset has no published version yet, or the service is degraded.

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