This tool provides a comprehensive guide on the use and accessibility of naloxone, a life-saving medication for reversing opioid overdoses. It discusses the current state of naloxone access, including types of access laws, liability protections, and the future of over-the-counter availability. The guide also addresses non-legal barriers to naloxone access, such as knowledge gaps, attitudes, values, beliefs, and logistical challenges. Additionally, it outlines strategies to overcome these barriers and considers additional factors like polysubstance use and naloxone dosing.