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FDA Boxed Warning Checker
x402
FDA Boxed Warning Checker is a paid API for AI agents from med.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).
Checks whether a drug carries an FDA boxed warning by scanning multiple manufacturer labels and returns the warning text and label version if found.
Price / call$0.005
Success—
StatusUnknown
How this service works
Answers whether a drug carries a boxed warning, the strongest warning class the FDA applies, and returns the warning text with the label version it came from. The check runs across multiple labels for the same substance rather than the first hit, because labels are maintained independently by each manufacturer and the same generic can carry a boxed warning at one and not at another; taking the first result and answering no is how this question gets answered wrongly.
Output
Returns a boolean indicating whether a boxed warning exists, the full text of the boxed warning (if present), and the label version and manufacturer source from which it was retrieved. The check covers multiple manufacturer labels for the same substance to avoid false negatives from first-hit-only lookups.
Example use cases
Pre-prescribing safety check
“Before I add this to the patient's regimen, check if lisinopril has an FDA boxed warning — I need the exact warning text and which label it came from.”
Pharmacist formulary review
“I'm reviewing our formulary and need to know if any manufacturer's label for quetiapine carries a boxed warning — pull the full text and label version if one exists.”
Drug safety chatbot integration
“A user just asked me whether atorvastatin has a black box warning. Can you check all available manufacturer labels and tell me the answer plus the warning text if there is one?”
Technical details
Endpoint
POSThttps://med.halowerk.com/v1/boxed-warning?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a reliable, multi-label boxed warning check rather than a single-label lookup. It is especially valuable for generics where different manufacturers may have different label versions, reducing the risk of a false 'no boxed warning' answer. Prefer this over raw openFDA queries when correctness and completeness across labels matter.
Side effects
- Drug name not recognized or not found in any label — returns no results
- No labels available for a substance — may return false negative
- Network timeout on FDA data retrieval
- Ambiguous drug name matching multiple distinct substances
- Payment failure via x402 protocol — call not executed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| drug | string | |
| labels_to_check | integer | How many manufacturer labels to examine. |
Tags
x402
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