How Long Does Fentanyl Stay In Your System?
Fentanyl is a synthetic opioid drug that was originally synthesized in the early 1960s by Paul Janssen, founder of Janssen Pharmaceutica. The drug initially gained mainstream popularity as a general anesthetic in the 1960s under the brand “Sublimaze”, a compound consisting of fentanyl and citric acid. It wasn’t until the 1990s that fentanyl was approved …