# FDA Drug Label Lookup

> FDA Drug Label Lookup is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-14).

Retrieves key FDA structured product label sections for a drug by name, including boxed warnings, indications, dosing, contraindications, warnings, drug interactions, and pregnancy information.

## Facts

- Endpoint: GET https://payai.agentstools.dev/drug/label
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fda-drug-label-lookup-dc90c96c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7U0xyC8MLbKqydFF-j_u4

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-dc90c96c
```

Example prompt: Can you pull up the FDA label for metformin — I want to see the boxed warnings, contraindications, and any drug interactions listed?

## When to prefer this

Use this endpoint when an agent needs structured, authoritative FDA label data for a specific drug — particularly for safety-critical sections like boxed warnings, contraindications, drug interactions, and pregnancy guidance. Prefer over general web search when you need reliable, structured pharmaceutical data tied to FDA official labeling rather than third-party summaries.

## Known failure modes

- Drug name not found in FDA label database — returns empty or error response
- Ambiguous drug name matching multiple products — may return label for one formulation only
- FDA label data may be outdated if SPL database not recently refreshed
- Generic vs brand name mismatch causing lookup failure
- Network or upstream FDA API unavailability

## How this service works

Key FDA structured-product-label sections for a drug by name: boxed warning, indications, dosing, contraindications, warnings, drug interactions and pregnancy. Informational, not medical advice.

## Output

Returns key sections from the FDA structured product label for the queried drug, including boxed warning text, approved indications, dosing guidance, contraindications, general warnings, drug interactions, and pregnancy category/safety information. Data is informational and not medical advice.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "drug"
     ],
     "properties": {
      "drug": {
       "type": "string",
       "description": "Drug brand, generic or active-ingredient name"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fda-drug-label-lookup-dc90c96c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payai.agentstools.dev](https://www.zero.xyz/host/payai.agentstools.dev/llms.txt)