Doctors say it works well and comes in a few forms: a liquid for an IV, a skin patch or a lozenge. This browser does not support the video element. The fentanyl being cut into heroin is different.

Officials said over the multi-year investigation, they seized over 250 kilograms of meth, 25 gallons of liquid meth, over12,000 fentanyl pills, kilogram-quantities of fentanyl powder, heroin ...