# FDA Drug Label Lookup via openFDA

> FDA Drug Label Lookup via openFDA is a paid API for AI agents from www.x402pulse.dev, paid per call via x402, $0.00875/call, status unknown (last checked 2026-10-12).

Returns structured FDA drug label data including boxed warnings, approved indications, contraindications, warnings, drug interactions, brand/generic names, manufacturer, and route for any drug.

## Facts

- Endpoint: GET https://www.x402pulse.dev/v1/health/drug-label?utm_source=zero.xyz
- Price: $0.00875/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fda-drug-label-lookup-via-openfda-e2a82e6d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6j87YNT44i-yPbJtcyrdV

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fda-drug-label-lookup-via-openfda-e2a82e6d
```

Example prompt: Can you pull the FDA label for Eliquis — specifically the boxed warnings, approved indications, contraindications, and any major drug interactions?

## When to prefer this

Choose this endpoint when you need authoritative, regulatory-sourced FDA label information about a specific drug — particularly boxed warnings, approved indications, contraindications, or drug interactions — rather than general drug information from non-regulatory sources. Ideal for clinical decision support tools, medication safety checks, or any agent workflow where the official FDA-approved label text is required. Prefer this over general drug information APIs when regulatory accuracy and structured output are priorities.

## Known failure modes

- Drug name not found in openFDA database — returns empty or no-match response
- Ambiguous drug name matching multiple products — may return data for the wrong product
- openFDA upstream outage or rate limiting — endpoint may return an error
- Drug label data may be incomplete if FDA records are sparse for that drug
- Very new or obscure drugs may not yet have structured label data in openFDA

## How this service works

FDA drug label lookup: boxed warning, approved indications, contraindications, warnings and drug interactions for any drug, plus brand and generic names, manufacturer and route, as clean structured text from openFDA. Not medical advice.

## Output

Returns clean structured text fields from the openFDA drug label database, including: boxed warnings (black box warnings), approved indications, contraindications, warnings and precautions, drug interactions, brand and generic names, manufacturer name, and route of administration.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "drug"
     ],
     "properties": {
      "drug": {
       "type": "string",
       "description": "Drug brand or generic name"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "drug": "warfarin",
   "source": "openFDA drug labels (U.S. FDA)",
   "brandNames": [
    "COUMADIN"
   ],
   "indications": "…",
   "boxedWarning": "WARNING: BLEEDING RISK…",
   "genericNames": [
    "WARFARIN SODIUM"
   ],
   "hasBoxedWarning": true,
   "drugInteractions": "…"
  },
  "cached": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fda-drug-label-lookup-via-openfda-e2a82e6d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.x402pulse.dev](https://www.zero.xyz/host/www.x402pulse.dev/llms.txt)