fentanyl is a synthetic opioid pain reliever, approved for treating severe pain, typically advanced cancer pain.1 It is 50 to 100 times more potent than morphine. It is prescribed in the form of transdermal patches or lozenges
How does fentanyl affect the brain?
Like heroin, morphine, and other opioid drugs, fentanyl works by binding to the body’s opioid receptors, which are found in areas of the brain that control pain and emotions.8 After taking opioids many times, the brain adapts to the drug, diminishing its sensitivity, making it hard to feel pleasure from anything besides the drug. When people become addicted, drug seeking and drug use take over their lives.
Fentanyl’s effects include