FDA adverse event counts — FAERS reports naming a drug
FDA adverse event counts — FAERS reports naming a drug: total reports, how many were serious, and the most reported reactions with counts and shares. Report counts are not incidence and prove no causation; use for pharmacovigilance signals and safety research, not clinical decisions.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
635 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://fda-drugs.use.x402atlas.com/adverse-events
| Category | Search and research |
|---|---|
| Provider host | fda-drugs.use.x402atlas.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 635 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"drug": "semaglutide",
"limit": 5
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"drug": {
"description": "Brand or generic name; omitted runs the example",
"pattern": "^[A-Za-z0-9][A-Za-z0-9 .,'()/-]{0,99}$",
"type": "string"
},
"limit": {
"default": 20,
"description": "Reaction terms to return",
"maximum": 100,
"minimum": 1,
"type": "integer"
}
},
"required": [
"drug"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"as_of": {
"description": "Retrieval time, UTC",
"format": "date-time",
"type": "string"
},
"caveat": {
"description": "Fixed interpretation note",
"type": "string"
},
"data_through": {
"description": "YYYY-MM-DD of the FAERS extract; reports lag three months or more",
"type": "string"
},
"drug": {
"description": "Name as searched",
"type": "string"
},
"modified": {
"description": "Always true: fields are normalized, not the agency's verbatim record",
"type": "boolean"
},
"note": {
"description": "Present only when no report names the drug",
"type": "string"
},
"reactions": {
"description": "Most reported first",
"items": {
"additionalProperties": false,
"properties": {
"count": {
"description": "Reports naming the reaction",
"type": "integer"
},
"share": {
"description": "count / total_reports, 3 decimals",
"type": "number"
},
"term": {
"description": "MedDRA preferred term, lowercase",
"type": "string"
}
},
"required": [
"term",
"count",
"share"
],
"type": "object"
},
"type": "array"
},
"serious_reports": {
"description": "Reports flagged serious",
"type": "integer"
},
"serious_share": {
"description": "serious_reports / total_reports, 3 decimals",
"type": "number"
},
"source": {
"additionalProperties": false,
"properties": {
"citation": {
"description": "Credit line FDA asks for",
"type": "string"
},
"name": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"name",
"url",
"citation"
],
"type": "object"
},
"total_reports": {
"description": "FAERS reports naming the drug",
"type": "integer"
}
},
"required": [
"as_of",
"source",
"caveat",
"modified",
"drug",
"total_reports",
"serious_reports",
"serious_share",
"reactions",
"data_through"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}