Introduction to Fentanyl and Drug Classification Fentanyl is a powerful synthetic opioid classified as a depressant. It was initially developed for medical use in the 1960s by Paul Janssen and is prescribed for severe or chronic pain management, especially in patients who are tolerant to other opioids. Fentanyl is 50 to 100 times more potentContinue reading “Fentanyl: From Prescription to Destruction”