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  1. Fentanyl | National Institute on Drug Abuse (NIDA)

    Aug 30, 2024 · Fentanyl is a powerful synthetic opioid analgesic that is similar to morphine but is 50 to 100 times more potent. It is a Schedule II prescription drug, and it is typically used to …

  2. What is Fentanyl? | National Institute on Drug Abuse (NIDA)

    May 12, 2022 · What is Fentanyl? Fentanyl is a synthetic opioid that is approximately 50 times more potent than morphine. Many people are exposed to fentanyl without knowledge while …

  3. El 64 % de estas muertes estuvieron relacionadas con opioides sintéticos, principalmente fentanilos fabricados de manera ilícita (illicitly manufactured fentanyls, IMF) (mayo de 2020 …

  4. NIDA HEAL Opioid Use Disorder and Overdose Strategic Plan FY …

    The new 2025-2029 NIDA/HEAL Strategic Plan advances research opioid use disorder and overdose.

  5. Opioids - National Institute on Drug Abuse (NIDA)

    Jun 17, 2025 · Opioids are a class of natural, semi-synthetic, and synthetic drugs. These include both prescription medications used to treat pain and illegal drugs like heroin. Opioids are …

  6. To address the fentanyl crisis, greater access to methadone is …

    Jul 29, 2024 · Over the past several years, the increasing prevalence of fentanyl in the drug supply has created an unprecedented overdose death rate and other devastating …

  7. Xylazine - National Institute on Drug Abuse (NIDA)

    Jun 17, 2025 · Xylazine, or “tranq,” is a veterinary sedative found in some illicit drugs and is linked to overdose and other issues.

  8. Drug Overdose Deaths: Facts and Figures

    Aug 21, 2024 · Drug overdose deaths involving prescription opioids rose from 3,442 in 1999 to 17,029 in 2017. From 2017 to 2023, there was an overall decline to 13,026. IMF involvement …

  9. Overdose Reversal Medications - National Institute on Drug Abuse …

    Oct 17, 2023 · NIDA is advancing the science on emergency medications like naloxone, which can save a life during an opioid overdose. Overdose reversal medications are safe and …

  10. Benzodiazepines and Opioids | National Institute on Drug Abuse

    Nov 7, 2022 · Taking opioids in combination with other central nervous system depressants—like benzodiazepines, alcohol, or xylazine—increases the risk of life-threatening overdose.