# Drug Label Sections by Clinical Significance

> Drug Label Sections by Clinical Significance is a paid API for AI agents from med.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-15).

Returns the complete, unabridged sections of an official FDA drug label reordered by clinical significance rather than document order, preserving all text verbatim.

## Facts

- Endpoint: POST https://med.halowerk.com/v1/drug-label
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/drug-label-sections-by-clinical-significance-191f45fe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_F5SrjG38pm0ZbFLZfher6

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability drug-label-sections-by-clinical-significance-191f45fe -d '<json body>'
```

Example prompt: Pull the complete official drug label for warfarin and sort all the sections by clinical significance — I need every word of the contraindications, warnings, and dosage instructions, nothing summarized or cut.

## When to prefer this

Choose this endpoint when you need the complete, unabridged official FDA drug label and want the sections surfaced in clinical priority order rather than regulatory document order. It is especially valuable for clinical decision support, safety review, and pharmacovigilance workflows where missing a contraindication is unacceptable. Prefer it over summarization-based endpoints when completeness is non-negotiable and over raw label retrieval when clinical prioritization aids workflow.

## Known failure modes

- Drug name not found in label database — returns 404 or empty result
- Ambiguous drug name matching multiple products — may require more specific identifier
- Label data temporarily unavailable from upstream FDA source — service error
- Invalid or malformed request body — returns 400 validation error

## How this service works

Returns the sections of an official drug label sorted by clinical significance rather than document order, with the text passed through word for word. Nothing is summarised and nothing is shortened: a summary is by definition an omission, and an omitted contraindication is the kind of omission that matters. A caller who needs a shorter version can produce one from the complete text supplied here, which is the right order of operations.

## Output

The complete text of all official drug label sections, delivered in full without any omissions or summarization, reordered so that clinically critical sections (e.g. boxed warnings, contraindications, serious adverse reactions) appear before less critical sections. Each section retains its original verbatim text.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "drug": {
   "type": "string",
   "maxLength": 200,
   "minLength": 2,
   "description": "Generic or brand name, or an NDC product code."
  },
  "sections": {
   "type": "array",
   "items": {
    "enum": [
     "boxed_warning",
     "contraindications",
     "warnings_and_cautions",
     "warnings",
     "do_not_use",
     "drug_interactions",
     "adverse_reactions",
     "indications_and_usage",
     "dosage_and_administration",
     "dosage_forms_and_strengths",
     "use_in_specific_populations",
     "pregnancy",
     "pediatric_use",
     "geriatric_use",
     "overdosage",
     "stop_use",
     "ask_doctor",
     "when_using",
     "active_ingredient",
     "inactive_ingredient",
     "purpose"
    ],
    "type": "string"
   },
   "maxItems": 21,
   "description": "Restrict to these sections. All by default."
  },
  "max_chars_per_section": {
   "type": "integer",
   "default": 12000,
   "maximum": 40000,
   "minimum": 500,
   "description": "Cap per section. When a section is cut, that is stated with the original length."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/drug-label-sections-by-clinical-significance-191f45fe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from med.halowerk.com](https://www.zero.xyz/host/med.halowerk.com/llms.txt)