Narcan
Narcan is a brand name for naloxone, a medication that blocks opioid receptors and is used to reverse potentially life-threatening opioid overdoses. Naloxone works by binding to mu, kappa, and delta receptors more strongly than most opioids, displacing opioid molecules and reversing respiratory depression and sedation caused by heroin, fentanyl, prescription pain medicines, and other opioids.
Formulations and administration: Naloxone is available in injectable forms for intramuscular, intravenous, or subcutaneous use, and
Onset and duration: Nasal naloxone generally begins to work within a few minutes; injectable routes can act
Safety and adverse effects: Naloxone is generally safe, but sudden withdrawal symptoms can occur in people
Availability and history: Naloxone was developed in the mid-20th century and approved for medical use in multiple