RxLabelGuardDrug Interaction API
FDA Label Data

Drug interaction detection for healthcare software

RxLabelGuard turns FDA Structured Product Labeling into a clean, queryable API. Send drug names, get back structured interaction data with severity levels, mechanisms, and evidence citations.

Get Your API KeyOpen Dashboard
API Request
curl https://api.rxlabelguard.com/v1/interactions \
  -H "Authorization: Bearer rxlg_your_api_key" \
  -d '{"drugs": ["warfarin", "aspirin"]}'

# Response
{
  "interactions": [{
    "drug_a": "warfarin",
    "drug_b": "aspirin",
    "severity": "major",
    "mechanism": "Additive anticoagulant effect",
    "recommendation": "Monitor INR closely",
    "evidence": {
      "source": "FDA SPL",
      "spl_set_id": "ab12cd34-..."
    }
  }]
}

Everything you need for drug safety checks

From drug name resolution to structured interaction data, RxLabelGuard handles the complexity so your team can focus on building.

Smart Drug Resolution

Fuzzy name matching, NDC codes, and RxCUI normalization. Send any drug identifier and we resolve it to the right FDA label.

Interaction Extraction

AI-powered extraction from FDA label text. Structured data with drug pairs, severity levels, mechanisms, and clinical recommendations.

Severity Scoring

Five-level severity classification: contraindicated, major, moderate, minor, and unknown. Clear triage for clinical workflows.

Evidence Citations

Every interaction links back to the FDA source label with SPL Set ID, section references, and evidence snippets for audit trails.

Developer Portal

Self-service API key management, per-key rate limits, IP restrictions, scope controls, and usage dashboards.

Enterprise Controls

Admin panel for user management, account suspension, quota enforcement, and restriction policies across your organization.

Three steps to safer prescribing

Integrate drug interaction checks into your application in minutes, not months.

1

Get an API key

Create your free account, generate an API key from the developer dashboard, and start making requests immediately.

2

Send drug names

Pass drug names, NDC codes, or RxCUI identifiers. We resolve them against FDA labels and extract interaction data.

3

Get structured data

Receive interaction pairs with severity levels, mechanisms, recommendations, and evidence citations from FDA labeling.

Data Source

Built on FDA Structured Product Labeling

RxLabelGuard sources interaction data directly from the FDA's openFDA API, which provides access to drug labels submitted by manufacturers as part of the regulatory approval process. This is the same data pharmacists and clinicians reference daily.

  • Data from openFDA, updated as labels are revised
  • Covers drug interactions, warnings, contraindications, and boxed warnings
  • Every result includes source label references for verification
  • Built for compliance-conscious healthcare organizations

Medical Disclaimer

This information is derived from FDA Structured Product Labeling and is provided for informational purposes only. It should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.

Start detecting drug interactions today

Free tier available. Create an account, get an API key, and integrate in minutes.

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