Tags: Drug.
Acetylfentanyl (acetyl fentanyl) is an opioid analgesic drug that is an analog of fentanyl. Acetylfentanyl is 40 times more potent than heroin 80 times more potent than morphine and 15 times less potent than fentanyl. It has never been licensed for medical use and has only been sold illegally as a designer drug. Acetylfentanyl was discovered at the same time as fentanyl itself and had rarely been encountered on the illicit market in the late 1980s but was never commonly used.
