What are the biological rammifications of Fentanyl?

Fentanyl, a potent synthetic opioid, significantly alters biological functions by binding to opioid receptors in the brain, leading to increased pain relief and euphoria. However, its high potency can result in respiratory depression, which is the primary cause of overdose deaths. Long-term use can lead to neuroadaptive changes, such as tolerance and dependence, as well as potential disruptions in hormonal regulation and immune function. Additionally, its impact on the central nervous system can result in cognitive impairments and mood disorders.