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FDA Drug Label Lookup
x402
FDA Drug Label Lookup is a paid API for AI agents from fda-drugs.use.x402atlas.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).
Retrieves the official FDA prescribing label for a brand or generic drug, including boxed warnings, indications, dosage, contraindications, adverse reactions, drug interactions, and drug identifiers.
Price / call$0.01
Success—
StatusUnknown
How this service works
FDA drug label lookup — the newest prescribing information for a brand or generic drug name: boxed warning, indications, dosage, contraindications, warnings, adverse reactions and drug interactions as previews or one section in full, plus manufacturer, route, RxNorm, UNII and application numbers. Use to read what a drug is approved for and its official warnings.
Output
Returns structured data including drug name, brand and generic name lists, manufacturer, route of administration, RxNorm CUI(s), UNII(s), application numbers, effective date, label version, and either preview snippets of all major label sections or the full text of a single requested section (up to 20,000 characters). Also includes the openFDA source citation and a retrieval timestamp.
Example use cases
Checking drug approval indications
“What is Jardiance officially approved to treat according to its FDA label? Show me the indications and usage section.”
Verifying black box warnings before prescribing
“Does methotrexate have a boxed warning on its FDA label? If so, what does it say?”
Drug interaction research for a new medication
“I need to see the drug interactions section from the FDA label for warfarin — pull the full text so I can review it.”
Technical details
Endpoint
GEThttps://fda-drugs.use.x402atlas.com/label?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative, official FDA-approved prescribing information for a specific drug — including regulatory identifiers like RxNorm, UNII, and NDA/ANDA application numbers. Prefer this over general web search when you need structured, citable drug label data with section-level granularity (e.g. just the boxed warning or just the drug interactions). This is the right choice for compliance, clinical decision support, or any context requiring verified regulatory text rather than summarized third-party content.
Side effects
- Drug name not found in FDA database — returns a note field indicating no label matched
- Ambiguous drug name matching multiple products — may return the most recent label without disambiguation
- Section requested is empty or not present in the label — returns empty string for that section
- Malformed drug name input rejected by pattern validation — returns 400-level error
- Rate limiting or payment failure — endpoint returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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