{
  "format": "healthspanledger-research-codebook",
  "schemaVersion": 1,
  "dataset": {
    "id": "openfda-ndc-listings",
    "name": "FDA drug listings for GLP-1 and peptide compounds",
    "canonicalUrl": "https://healthspanledger.com/compounded/supply-chain",
    "edition": "2026.08",
    "version": "378fefb14c5f"
  },
  "columns": [
    {
      "name": "compound",
      "type": "string",
      "nullable": false,
      "description": "Stable HealthspanLedger slug for the searched compound."
    },
    {
      "name": "compound_name",
      "type": "string",
      "nullable": false,
      "description": "Reader-facing name of the searched compound."
    },
    {
      "name": "product_ndc",
      "type": "string",
      "nullable": false,
      "description": "Product-level National Drug Code published in the NDC Directory."
    },
    {
      "name": "labeler",
      "type": "string",
      "nullable": false,
      "description": "Labeler name attached to the NDC listing."
    },
    {
      "name": "generic_name",
      "type": "string",
      "nullable": false,
      "description": "Generic name printed in the NDC listing."
    },
    {
      "name": "brand_name",
      "type": "string",
      "nullable": true,
      "description": "Brand name printed in the NDC listing.",
      "missingMeaning": "The listing publishes no brand name."
    },
    {
      "name": "dosage_form",
      "type": "string",
      "nullable": false,
      "description": "Dosage form printed in the NDC listing."
    },
    {
      "name": "routes",
      "type": "string",
      "nullable": false,
      "description": "Administration routes published for the listing, separated by semicolons."
    },
    {
      "name": "marketing_category_fda",
      "type": "string",
      "nullable": false,
      "description": "Marketing category exactly as FDA publishes it."
    },
    {
      "name": "marketing_category",
      "type": "string",
      "nullable": false,
      "description": "Normalized category used for the page's finished-drug and bulk-ingredient groups."
    },
    {
      "name": "is_finished_drug",
      "type": "boolean",
      "nullable": false,
      "description": "Whether the listing is classified as a finished drug rather than a bulk ingredient."
    },
    {
      "name": "application_number",
      "type": "string",
      "nullable": true,
      "description": "FDA application number linked to the listing.",
      "missingMeaning": "The listing publishes no FDA application number."
    },
    {
      "name": "marketing_start_date",
      "type": "string",
      "nullable": false,
      "description": "ISO date on which the listing says marketing began."
    },
    {
      "name": "listing_expiration_date",
      "type": "string",
      "nullable": true,
      "description": "ISO expiration date published for the listing.",
      "missingMeaning": "The listing publishes no expiration date."
    },
    {
      "name": "spl_set_id",
      "type": "string",
      "nullable": true,
      "description": "Stable DailyMed Structured Product Label set identifier.",
      "missingMeaning": "The listing publishes no SPL set identifier."
    }
  ]
}