# FDA Drug Safety Snapshot (FAERS Adverse Events)

> FDA Drug Safety Snapshot (FAERS Adverse Events) is a paid API for AI agents from www.x402pulse.dev, paid per call via x402, $0.0175/call, status unknown (last checked 2026-10-12).

Returns a drug safety summary from FDA FAERS including total adverse event reports, serious/fatal share, top side effects, and quarterly trend for any brand or generic drug name.

## Facts

- Endpoint: GET https://www.x402pulse.dev/v1/health/drug-safety?utm_source=zero.xyz
- Price: $0.0175/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-safety-snapshot-faers-adverse-events-c406e3cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0lN8ocoIOQHQCU3BEAzb3

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-safety-snapshot-faers-adverse-events-c406e3cd
```

Example prompt: Pull up the FDA FAERS drug safety snapshot for ozempic — I want to see the total adverse event reports, what share were serious or fatal, the top reported side effects, and how the quarterly trend looks.

## When to prefer this

Choose this endpoint when you need a quick, structured FDA FAERS safety summary for a specific drug by name, especially for adverse event counts, severity breakdown (serious/fatal), top side effects, and trend data. Prefer over FDA drug label lookup when you want real-world post-market safety signals rather than label-approved indications or warnings. Best for pharmacovigilance research, patient safety screening, or drug comparison workflows.

## Known failure modes

- Drug name not found in FAERS — returns empty or zero-count result for misspelled or very new drugs
- Ambiguous drug name matching multiple compounds — may return aggregated or partial data
- FAERS data lag — most recent quarter may not yet be fully populated
- Rate limit exceeded on free tier — HTTP 402 if per-call payment fails
- Generic vs brand name mismatch — querying one may not aggregate the other automatically

## How this service works

FDA drug safety snapshot for any drug (brand or generic name): total adverse event reports, share serious and fatal, most-reported side effects and the quarterly report trend from FDA FAERS. Reports are not proof of causation. Data, not medical advice.

## Output

Returns a structured drug safety snapshot including: total number of adverse event reports in FDA FAERS, percentage of reports classified as serious, percentage classified as fatal, a ranked list of most-reported side effects, and a quarterly trend of report volume. Includes a disclaimer that reports are not proof of causation and this is 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"
     ],
     "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": "atorvastatin",
   "source": "openFDA FAERS (U.S. FDA)",
   "seriousShare": 0.6,
   "topReactions": [
    {
     "share": 0.064,
     "reports": 3340,
     "reaction": "myalgia"
    }
   ],
   "totalReports": 52000,
   "deathReportShare": 0.04,
   "quarterlyReports": [
    {
     "quarter": "2026-Q2",
     "reports": 2900
    }
   ],
   "yearOverYearChange": 0.05
  },
  "cached": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fda-drug-safety-snapshot-faers-adverse-events-c406e3cd/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)