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  "path": "/news/2026-06-fentanyl-countermeasure-combat-future-black.html",
  "publishedAt": "2026-06-12T07:00:01.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "Fentanyl and related variants of the synthetic opioid kill more Americans each year than car accidents and gun violence combined. In too-high doses, the drugs hijack brain chemistry and shut down the signals that control breathing. Existing medical interventions can reverse an overdose, but only if given quickly enough after it occurs.",
  "title": "A fentanyl countermeasure that adapts to combat future black-market drugs"
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