nearly all the fentanyl on the street is illegally manufactured, not diverted from prescriptions. fentanyl is ideal for smuggling because of how potent it is,

nearly all the fentanyl on the street is illegally manufactured, not diverted from prescriptions. fentanyl is ideal for smuggling because of how potent it is, and ideal for clandestine manufacture because it doesn't require opium as a starting material.