What Is Narcan? Opioid abuse can unexpectedly lead to a drug overdose, especially because many fake pills and illicit drugs are laced with potent opioids such as fentanyl, which is as much as 50 times more potent than heroin. Narcan is a brand-name medication for the drug naloxone, a drug used to reverse the effects … Continue reading Where to Get Narcan in Arizona and How to Use It