openfda.drug_labels

stable Advanced

Search FDA drug labels (brand, purpose, indications).

GET /v1/openfda/drug_labels

What you get#

A list of Openfda results in Onekey's unified shape, in data (an array). An empty array is a normal, successful answer and is charged like any other; a source that reports "nothing found" as an error returns a free 404 not_found instead.

What it costs#

Advanced · 5 credits for a fresh fetch, charged only when it succeeds.
Free when served from cache (0.2 credit for a cached response over 100 KB).
Free if the request is invalid (never charged) or the source fails or reports not found (refunded).

Parameters#

Name	Type	Required	Default	What it is	Constraints
`q`	string	yes	(required)	openFDA search, e.g. aspirin	max 100 chars; must match `[^\x00-\x1f\x7f]{1,100}`; trimmed, repeated spaces collapsed

Request#

curl "https://api.onekey.dev/v1/openfda/drug_labels?q=aspirin" \
  -H "x-api-key: YOUR_API_KEY"

Try it

Add your key to run this call right here. No key? Get one free. The key stays in this tab.

Recorded response#

A real Openfda response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": [
    {
      "entity": {
        "id": "8c45ef1f-f708-485b-bc20-60aa87ce6289",
        "name": "Naproxen"
      },
      "ext": {
        "generic": "NAPROXEN",
        "manufacturer": "A-S Medication Solutions",
        "purpose": null,
        "indications": "1 INDICATIONS AND USAGE Naproxen tablets and naproxen sodium tablets are indicated for: the relief of the signs and symptoms of: • rheumatoid arthritis • osteoarthritis • ankylosing spondylitis • Polyarticular Juvenile Idiopathic Arthritis Naproxen tablets and naproxen sodium tablets are also indicated for: the relief of signs and symptoms of: • tendonitis • bursitis • acute gout the management of: • pain • primary dysmenorrhea Naproxen tablets and naproxen sodium tablets are non-steroidal anti-"
      }
    },
    {
      "entity": {
        "id": "26cca05b-82f8-e191-e063-6394a90a56bd",
        "name": "Glimepiride"
      },
      "ext": {
        "generic": "GLIMEPIRIDE",
        "manufacturer": "American Health Packaging",
        "purpose": null,
        "indications": "1 INDICATIONS AND USAGE Glimepiride tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus [see Clinical Studies (14.1) ]. Limitations of Use Glimepiride tablets should not be used for the treatment of type 1 diabetes mellitus or diabetic ketoacidosis, as it would not be effective in these settings. Glimepiride tablets are a sulfonylurea indicated as an adjunct to diet and exercise to improve glycemic control in adults with ty"
      }
    }
  ],
  "metadata": {
    "platform": "openfda",
    "endpoint": "drug_labels",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 5,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}

Field mapping#

How this endpoint's source fields become Onekey's unified schema. Fields the source lacks come back as null.

Source path	Onekey field	Transform
`id`	`entity.id`	-
`openfda.brand_name.0`	`entity.name`	-
`openfda.generic_name.0`	`ext.generic`	-
`openfda.manufacturer_name.0`	`ext.manufacturer`	-
`purpose.0`	`ext.purpose`	-
`indications_and_usage.0`	`ext.indications`	-

Caching and freshness#

Fresh for about 2 minutes. Repeat calls in that window are served from cache and are free.
Between 2 minutes and 15 minutes the cached copy is still served instantly and marked stale: true while Onekey refreshes it in the background.
If the source is down when a refresh is needed, the last copy can be served for up to 1 hour more (marked stale).
A "not found" is remembered for 1 minute and is free.
The cache is shared across all customers, which is what keeps repeat calls cheap.

What can go wrong#

Status	Code	What to do
401	`unauthorized`	Check the `x-api-key` header.
402	`insufficient_credits`	Add credits; your balance must cover the price.
404	`not_found`	Unknown endpoint path.
422	`invalid_params`	Fix the parameters using the table above. Free.
429	`rate_limited`	Wait `Retry-After` seconds, then retry.
502	`upstream_error`	The source failed. Refunded; retry with backoff.

See Errors for the full list and retry guidance.

Status: stable (verified against the live source).