Top adverse reactions

Code snippets

curl "https://api.oanor.com/drug-api/v1/events" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/drug-api/v1/events", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/drug-api/v1/events");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);

import requests
requests.get(
    "https://api.oanor.com/drug-api/v1/events",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "drug": "aspirin",
        "count": 15,
        "reactions": [
            {
                "reports": 38030,
                "reaction": "FATIGUE"
            },
            {
                "reports": 31830,
                "reaction": "DYSPNOEA"
            },
            {
                "reports": 31455,
                "reaction": "NAUSEA"
            },
            {
                "reports": 31181,
                "reaction": "DIARRHOEA"
            },
            {
                "reports": 26658,
                "reaction": "DRUG INEFFECTIVE"
            },
            {
                "reports": 26448,
                "reaction": "DIZZINESS"
            },
            {
                "reports": 23508,
                "reaction": "HEADACHE"
            },
            {
                "reports": 22998,
                "reaction": "OFF LABEL USE"
            },
            {
                "reports": 22150,
                "reaction": "ASTHENIA"
            },
            {
                "reports": 21721,
                "reaction": "FALL"
            },
            {
                "reports": 21657,
                "reaction": "PAIN"
            },
            {
                "reports": 18441,
                "reaction": "PNEUMONIA"
            },
            {
                "reports": 18418,
                "reaction": "VOMITING"
            },
            {
                "reports": 17408,
                "reaction": "DEATH"
            },
            {
                "reports": 16603,
                "reaction": "ARTHRALGIA"
            }
        ],
        "total_reports": 368506
    },
    "meta": {
        "timestamp": "2026-05-30T05:13:16.392Z",
        "request_id": "2a438db8-adea-4e1b-b8b1-4ba4961b85b3"
    },
    "status": "ok",
    "message": "Adverse events retrieved",
    "success": true
}