Carfentanil is an illegally produced synthetic opioid that is showing up on the streets of Ohio, often disguised and sold as heroin. However, carfentanil is actually 100 times more potent than fentanyl—a drug that is already more addictive and more dangerous than heroin itself. This means that users frequently are unaware of what they are purchasing and therefore do not know just how life-threatening this drug can actually be.