Chronic fentanyl induces sex-specific anxiolytic-like effects in opioid-dependent rats
Fentanyl is used as a treatment for severe pain, and it is a major contributor to opioid misuse and overdose fatalities. While it has been established that opioids are widely misused for their euphoric effects, little is known about the effects of chronic fentanyl exposure on anxiety-like behavior. We determined the ef...