OpenFDA Search Drug Events

Overview

Search the FDA Adverse Event Reporting System (FAERS) database via openFDA for drug safety reports. Accepts convenience parameters drug_name and reaction (e.g., drug_name='warfarin', reaction='haemorrhage'), or a raw Lucene 'search' string for advanced queries. Contains 20+ million adverse event reports. IMPORTANT: MedDRA reaction terms use British English spelling (e.g., 'haemorrhage' not 'hemorrhage', 'haematoma' not 'hematoma'). Returns serious adverse events with outcomes (hospitalization, death), suspect drugs, and MedDRA reactions.

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed

1d ago

Last success

1d ago

Last latency

110ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "adverse_event": {
      "description": "Alias for reaction. MedDRA adverse reaction term (British spelling).",
      "type": [
        "string",
        "null"
      ]
    },
    "count": {
      "description": "Field to count by for frequency analysis (e.g., 'patient.reaction.reactionmeddrapt.exact' to get most common reactions)",
      "type": [
        "string",
        "null"
      ]
    },
    "drug_name": {
      "description": "Drug name to search for adverse events (e.g., 'warfarin', 'metformin'). Alternative to writing a full Lucene 'search' query.",
      "type": [
        "string",
        "null"
      ]
    },
    "limit": {
      "description": "Maximum number of reports to return (default 1, max 100)",
      "type": [
        "integer",
        "null"
      ]
    },
    "reaction": {
      "description": "MedDRA adverse reaction term (British spelling: 'haemorrhage' not 'hemorrhage', 'haematoma' not 'hematoma'). Used with drug_name to filter by reaction.",
      "type": [
        "string",
        "null"
      ]
    },
    "search": {
      "description": "Lucene query for adverse event reports. Use AND/OR with spaces (not +AND+). Examples: 'patient.drug.medicinalproduct:aspirin', 'patient.reaction.reactionmeddrapt:\"myocardial infarction\"', 'serious:1 AND patient.drug.medicinalproduct:warfarin'. Combine drugs: 'patient.drug.medicinalproduct:metformin AND patient.drug.medicinalproduct:atorvastatin'.",
      "type": "string"
    }
  },
  "required": [],
  "type": "object"
}

Examples (1)

{}

Identifiers

Catalog ID

tu_OpenFDA_search_drug_events

Tool name

OpenFDA_search_drug_events

Added

2026-04-30 22:47Z

Tags

tooluniverse