What to know about the deadly drug fentanyl Fentanyl was first developed in 1959 and introduced in the 1960s as an intravenous anesthetic. from Yahoo News - Latest News & Headlines https://ift.tt/2OVrx3X Alejandro 00:09 Share to: Twitter Facebook URL Print Email Labels: Yahoo News - Latest News & Headlines
Fentanyl was first developed in 1959 and introduced in the 1960s as an intravenous anesthetic.
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