&amp;lt;strong&amp;gt;Fentanyl&amp;lt;/strong&amp;gt; itself is a Schedule II drug, typically used as part of anesthesia treatment in medical settings. But when the opioid is dangerously combined with various chemical compounds, such as 3-methylfentanyl, it is classified as a Schedule I drug. Fentanyl is 50 to 100 times more potent than morphine; ingesting a tiny amount can be instantly fatal. The drug can be made more cheaply than heroin, which makes it even more accessible to poor communities. Fentanyl is sometimes mistaken for less-potent heroin, leading to increased risk of overdose. 