# Saylor Innovations Medical Reference — Drug Facts (RxNorm + FDA Label)

> Saylor Innovations Medical Reference — Drug Facts (RxNorm + FDA Label) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-03).

Returns structured drug information for a given drug name, including RxNorm identifiers, FDA label sections (warnings, dosing, interactions), and label metadata.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/medical/drug/metformin?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-medical-reference-drug-facts-rxnorm-fda-label-738bc4fa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mIn-8gW0V9AgMCHMOjDIB

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 saylor-innovations-medical-reference-drug-facts-rxnorm-fda-label-738bc4fa
```

Example prompt: Can you pull up the full drug facts for metformin — I need the FDA label details including warnings, dosing, and any drug interactions, along with its RxNorm identifier.

## When to prefer this

Choose this endpoint when you need authoritative, structured drug reference data combining both RxNorm identifiers and FDA-approved label content (warnings, dosing, interactions) in a single call. Prefer it over general web search when you need machine-readable, normalized pharmacological data suitable for clinical reference, drug databases, or patient safety checks.

## Known failure modes

- Drug name not found in RxNorm or FDA label database — returns found: false with null label and rxnorm fields
- Misspelled or ambiguous drug name may return no results
- Non-US or unapproved drugs may not have FDA label data
- Network timeout or upstream FDA/RxNorm API unavailability

## How this service works

Drug Facts: RxNorm + FDA Label (warnings, dosing, interactions) — Health & Medical

## Output

A JSON object indicating whether the drug was found, along with nested RxNorm data (identifiers, related concepts), FDA label object (with structured sections such as warnings, dosing, indications, contraindications, drug interactions), and individual label sections as key-value pairs.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "found"
     ],
     "properties": {
      "found": {
       "type": "boolean"
      },
      "label": {
       "type": [
        "object",
        "null"
       ]
      },
      "rxnorm": {
       "type": [
        "object",
        "null"
       ]
      },
      "sections": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-medical-reference-drug-facts-rxnorm-fda-label-738bc4fa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)