{
  "meta": {
    "disclaimer": "Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service.",
    "terms": "https://open.fda.gov/terms/",
    "license": "https://open.fda.gov/license/",
    "last_updated": "2026-10-13",
    "results": {
      "skip": 0,
      "limit": 1,
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    }
  },
  "results": [
    {
      "product_ndc": "49643-441",
      "generic_name": "Betula fontinalis",
      "labeler_name": "Allermed Laboratories, Inc.",
      "brand_name": "Spring Birch Pollen",
      "active_ingredients": [
        {
          "name": "BETULA OCCIDENTALIS POLLEN",
          "strength": ".05 g/mL"
        }
      ],
      "finished": true,
      "packaging": [
        {
          "package_ndc": "49643-441-05",
          "description": "5 mL in 1 VIAL, MULTI-DOSE (49643-441-05)",
          "marketing_start_date": "19740312",
          "sample": false
        },
        {
          "package_ndc": "49643-441-10",
          "description": "10 mL in 1 VIAL, MULTI-DOSE (49643-441-10)",
          "marketing_start_date": "19740312",
          "sample": false
        },
        {
          "package_ndc": "49643-441-30",
          "description": "30 mL in 1 VIAL, MULTI-DOSE (49643-441-30)",
          "marketing_start_date": "19740312",
          "sample": false
        },
        {
          "package_ndc": "49643-441-50",
          "description": "50 mL in 1 VIAL, MULTI-DOSE (49643-441-50)",
          "marketing_start_date": "19740312",
          "sample": false
        }
      ],
      "listing_expiration_date": "20261231",
      "openfda": {},
      "marketing_category": "BLA",
      "dosage_form": "INJECTION",
      "spl_id": "36ad1e17-751d-e226-e063-6394a90ab328",
      "product_type": "NON-STANDARDIZED ALLERGENIC",
      "route": [
        "CUTANEOUS",
        "INTRADERMAL",
        "SUBCUTANEOUS"
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      "marketing_start_date": "19740312",
      "product_id": "49643-441_36ad1e17-751d-e226-e063-6394a90ab328",
      "application_number": "BLA102211",
      "brand_name_base": "Spring Birch Pollen",
      "pharm_class": [
        "Allergens [CS]",
        "Cell-mediated Immunity [PE]",
        "Increased Histamine Release [PE]",
        "Increased IgG Production [PE]",
        "Non-Standardized Pollen Allergenic Extract [EPC]",
        "Pollen [CS]"
      ]
    }
  ]
}