Naloxone for Opioid Overdose 101 This training describes what opioids are and how they work, the signs of an opioid overdose, what naloxone is and how it works, when and how to use naloxone and Utah laws related to naloxone. It will take 15-20 minutes to complete this online training. This training is intended for the public, first responders, and public safety officers to complete. Upon completion, participants will receive a Naloxone for Opioid Overdose 101 Certificate of Completion.