RxLabelGuard delivers FDA-sourced drug interaction data through a REST API with severity scoring, mechanism details, and evidence citations. Transparent pricing starting at $0/month. No enterprise licensing process required.
First Databank (FDB) is a subsidiary of Hearst Health and one of the largest drug knowledge base providers in the world. Founded in 1977, FDB has built a comprehensive drug information infrastructure that powers clinical decision support across thousands of hospitals, pharmacies, and health information technology systems globally.
Their flagship product, FDB MedKnowledge, is an extensive drug knowledge base that includes drug-drug interactions, drug-allergy checking, dosing guidance, duplicate therapy detection, and formulary management data. FDB MedKnowledge is deeply integrated into many of the largest electronic health record (EHR) platforms -- including Epic and Oracle Health (formerly Cerner) -- making it one of the most widely deployed drug data sources in clinical practice.
FDB AlertSpace is their severity-filtered interaction alerting module, designed to reduce alert fatigue by allowing health systems to configure which interaction alerts are displayed to clinicians based on clinical significance thresholds. This addresses one of the most persistent challenges in clinical decision support: the problem of too many low-severity alerts causing clinicians to ignore all alerts, including the critical ones.
FDB also provides MedKnowledge Framework, which offers embeddable clinical decision support modules for EHR and pharmacy system vendors. Their data feeds cover drug pricing (FDB MedKnowledge Drug Pricing), patient education materials, and drug image databases.
Like most enterprise drug data vendors, First Databank does not publicly list pricing. Licensing typically involves a sales process with custom quotes based on the scope of integration, number of end users, deployment model, and which product modules are required. For a team that only needs drug interaction checking, the full FDB licensing process may represent more complexity and cost than the use case warrants.
FDB licensing is structured for large health systems and EHR vendors. Startups, smaller development teams, and individual healthcare developers building focused applications often find that the minimum licensing commitment exceeds their budget for a single feature like interaction checking. There is no public pricing page to evaluate before engaging with sales.
FDB data feeds require integration agreements that specify deployment models, data refresh schedules, and usage restrictions. For teams that want to send drug names to an API endpoint and receive structured interaction data back, this level of licensing complexity adds overhead to what should be a straightforward integration.
FDB MedKnowledge encompasses drug-drug interactions, drug-allergy checking, dosing validation, duplicate therapy detection, and formulary management. When a team specifically needs drug interaction checking with severity scoring and evidence citations, licensing the full knowledge base introduces cost and complexity for modules that will not be used.
Development teams building MVPs, prototyping new features, or evaluating drug data sources need the ability to sign up, generate an API key, and start testing immediately. They also need publicly listed pricing they can include in project budgets and business cases without waiting for a custom quote.
Healthcare applications increasingly need to provide evidence provenance for drug interaction alerts. Teams need results that cite specific FDA label sections, SPL Set IDs, and text snippets so that interaction alerts can be traced back to their authoritative source for clinical governance and regulatory compliance.
Many FDB integrations use data feed models where drug data is loaded into the customer's database and queried locally. While this offers low latency, it also requires infrastructure for data ingestion, refresh scheduling, and version management. A hosted REST API eliminates this operational overhead for teams that prefer cloud-hosted data access.
An honest side-by-side comparison to help you evaluate which solution fits your needs.
| Feature | First Databank (FDB) | RxLabelGuard |
|---|---|---|
| Data Source | Proprietary curated database with editorial review and clinical literature references | FDA Structured Product Labeling (public, verifiable) |
| Scope | Full drug knowledge base: interactions, allergies, dosing, duplicate therapy, formulary management | Focused on drug interaction detection with severity scoring and evidence citations |
| Pricing | Enterprise licensing with custom quotes (contact sales, not publicly listed) | Free tier ($0), Developer ($20/mo), Professional ($99/mo) |
| Setup Time | Enterprise sales process: weeks to months (evaluation, contract, integration) | Self-service: minutes to first API call |
| Free Tier | No free tier available | Yes -- 50 requests/month on Sandbox plan |
| API / Data Access | Data feeds loaded into customer databases, plus integration APIs for EHR platforms | Cloud-hosted REST API with JSON responses |
| Alert Fatigue Management | FDB AlertSpace with configurable severity thresholds and suppression rules | Severity levels returned per interaction; filtering logic controlled by your application |
| Interaction Output | Severity classification, clinical significance, management recommendations | Severity, mechanism of action, clinical recommendations, evidence citations |
| Evidence Citations | References to clinical literature and pharmacological studies | SPL Set ID + FDA label section + evidence text snippet per interaction |
| Drug Resolution | FDB drug identifiers with NDC and other code mappings | RxNorm (RxCUI), NDC codes, brand and generic names with fuzzy matching |
| EHR Integration | Deep integration with Epic, Oracle Health (Cerner), and other major EHR platforms | Standard REST API compatible with any system that can make HTTP requests |
| Self-Service Signup | No -- requires enterprise sales process and licensing agreement | Yes -- create account, generate API key, start testing immediately |
First Databank offers deeper clinical validation, broader drug data coverage, established integrations with major EHR platforms, and alert fatigue management through FDB AlertSpace. RxLabelGuard focuses specifically on drug interaction detection with FDA-sourced evidence citations and self-service API access.
Three steps from drug names to structured interaction data.
Pass drug names, NDC codes, or RxCUI identifiers to our REST API endpoint. We accept brand names, generic names, and common abbreviations.
Your input is normalized to RxCUI via RxNorm fuzzy matching, then we retrieve the latest FDA Structured Product Label for each drug.
Receive interaction pairs with severity level, mechanism of action, clinical recommendations, and FDA evidence citations including SPL Set ID and label section.
Check drug interactions in your language of choice. All responses include severity scoring and FDA evidence citations.
curl -X POST https://jd6095ijga.execute-api.us-east-2.amazonaws.com/v1/interactions/check \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_API_KEY" \
-d '{
"drugs": ["metformin", "lisinopril"]
}'import requests
response = requests.post(
"https://jd6095ijga.execute-api.us-east-2.amazonaws.com/v1/interactions/check",
headers={
"Content-Type": "application/json",
"x-api-key": "YOUR_API_KEY",
},
json={"drugs": ["metformin", "lisinopril"]},
)
data = response.json()
for interaction in data.get("interactions", []):
print(f"{interaction['severity']}: {interaction['description']}")const response = await fetch(
"https://jd6095ijga.execute-api.us-east-2.amazonaws.com/v1/interactions/check",
{
method: "POST",
headers: {
"Content-Type": "application/json",
"x-api-key": "YOUR_API_KEY",
},
body: JSON.stringify({ drugs: ["metformin", "lisinopril"] }),
}
);
const data = await response.json();
data.interactions.forEach((interaction) => {
console.log(`${interaction.severity}: ${interaction.description}`);
});One of First Databank's most recognized features is FDB AlertSpace, a module specifically designed to address alert fatigue in clinical settings. Alert fatigue occurs when clinicians are presented with so many drug interaction alerts -- many of them low severity or clinically insignificant -- that they begin overriding all alerts, including the ones that matter.
FDB AlertSpace provides configurable severity thresholds that allow health systems to suppress low-priority alerts and surface only the interactions that require clinical attention. This is a genuine strength of the FDB platform, particularly for large hospital deployments where alert override rates can exceed 90%.
RxLabelGuard takes a different approach. Every interaction returned by the API includes a severity level (contraindicated, major, moderate, minor, or unknown) along with the mechanism and recommendation. Your application can then implement its own alert filtering logic based on your specific clinical workflow and user population. This gives development teams full control over how interactions are surfaced and displayed.
If you need pre-built, hospital-validated alert filtering with established clinical evidence for suppression thresholds, FDB AlertSpace is purpose-built for that workflow. If you need severity-scored interaction data that your application can filter and present according to its own logic, RxLabelGuard provides the raw interaction data with severity classifications to support that approach.
Teams move from enterprise drug data platforms to focused APIs when their specific use case does not require the full breadth of FDB MedKnowledge.
Teams building drug interaction features for applications that do not already use FDB as their primary drug data source. When interaction checking is the only FDB module you would license, a focused API with transparent per-request pricing is a better fit.
Pharmacy benefit managers and medication therapy management platforms that need to check interactions as part of prior authorization or medication review workflows. Self-service API access allows integration without enterprise licensing overhead.
Telehealth startups and digital health applications adding drug interaction safety checks to prescribing or medication reconciliation workflows. A free tier allows building and testing the integration before committing to a paid plan.
Research teams analyzing drug interaction patterns across patient populations or medication regimens. API-based access with pay-per-use pricing makes batch analysis feasible without enterprise-scale licensing commitments.
Start free. Scale as you grow. No enterprise sales cycle required.
50 requests/month, 1 API key
2,000 requests/month, 5 API keys
20,000 requests/month, unlimited keys
Create a free account and test with your critical drug pairs. No credit card, no sales call, no enterprise licensing process. Go from sign-up to first API response in minutes.
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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. First Databank, FDB, MedKnowledge, and AlertSpace are trademarks of First Databank, Inc., a subsidiary of Hearst Health. RxLabelGuard is not affiliated with or endorsed by First Databank or Hearst Health.