1959 CE
Fentanyl is first synthesized by Paul Janssen in Belgium

Fentanyl was first synthesized by Belgian chemist Paul Janssen in 1959. He synthesized the drug at a pharmaceutical company he started in Belgium.

Source: Stolberg, V. B. (2016). Painkillers. History, Science, and Issues. ABC-Clio.

Drugs: Opium (morphine, heroin, opioids)
Regions: Belgium