{
  "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": "2026-09-29",
    "results": {
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      "generic_name": "Guaifenesin and Dextromethorphan Hydrobromide",
      "labeler_name": "Reckitt Benckiser LLC",
      "brand_name": "Mucinex DM Maximum Strength",
      "brand_name_suffix": "Maximum Strength",
      "active_ingredients": [
        {
          "name": "GUAIFENESIN",
          "strength": "1200 mg/1"
        },
        {
          "name": "DEXTROMETHORPHAN HYDROBROMIDE",
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      "finished": true,
      "packaging": [
        {
          "package_ndc": "63824-072-02",
          "description": "1 POUCH in 1 CARTON (63824-072-02)  / 1 TABLET, EXTENDED RELEASE in 1 POUCH",
          "marketing_start_date": "20210801",
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        {
          "package_ndc": "63824-072-07",
          "description": "1 BLISTER PACK in 1 CARTON (63824-072-07)  / 7 TABLET, EXTENDED RELEASE in 1 BLISTER PACK",
          "marketing_start_date": "20120626",
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        {
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        },
        {
          "package_ndc": "63824-072-36",
          "description": "2 BLISTER PACK in 1 CARTON (63824-072-36)  / 14 TABLET, EXTENDED RELEASE in 1 BLISTER PACK",
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        {
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          "marketing_start_date": "20120626",
          "sample": false
        },
        {
          "package_ndc": "63824-072-56",
          "description": "4 BLISTER PACK in 1 CARTON (63824-072-56)  / 14 TABLET, EXTENDED RELEASE in 1 BLISTER PACK",
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      ],
      "listing_expiration_date": "20271231",
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        "upc": [
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        "nui": [
          "N0000193956",
          "N0000008867",
          "N0000009560"
        ],
        "pharm_class_epc": [
          "Expectorant [EPC]"
        ],
        "pharm_class_pe": [
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          "Increased Respiratory Secretions [PE]"
        ],
        "unii": [
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      "marketing_category": "NDA",
      "dosage_form": "TABLET, EXTENDED RELEASE",
      "spl_id": "52d14310-1cbd-5cbb-e063-6294a90ade4a",
      "product_type": "HUMAN OTC DRUG",
      "route": [
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      "marketing_start_date": "20120626",
      "product_id": "63824-072_52d14310-1cbd-5cbb-e063-6294a90ade4a",
      "application_number": "NDA021620",
      "brand_name_base": "Mucinex DM",
      "pharm_class": [
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        "Expectorant [EPC]",
        "Increased Respiratory Secretions [PE]",
        "Sigma-1 Agonist [EPC]",
        "Sigma-1 Receptor Agonists [MoA]",
        "Uncompetitive N-methyl-D-aspartate Receptor Antagonist [EPC]",
        "Uncompetitive NMDA Receptor Antagonists [MoA]"
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    }
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}