Fentanyls requires buff which can be almost anything. Cocaine cutting agent phenacetin is often used. It was used and banned in the 70s as an analgesic and fever-reducing drug. Levamisole, caffeine, benzocaine, boric acid, acetaminophen, even rat poison, pig de-wormer and laundry detergent have been used. In April 2017, Calgary police seized 83kg of phenacetin. |