Fentanyl binds to opioid receptors in the brain, flooding it with dopamine, inducing euphoria and pain relief. With repeated use, the brain adapts, requiring more fentanyl to achieve the same effects. Over time, this leads to physical dependence and addiction, altering brain chemistry and perpetuating compulsive drug-seeking behavior.

This is Davis's detox experience, as shared by his mother Tammy Morgan-Foglia.