General Discussion

...as a person who's had tangential experiences with some folks in the drug trade is why someone selling cocaine would put any amount of fentanyl in it. Cocaine is a stimulant, fentanyl is a narcotic. There are people who'd willingly want to affect of a "speedball", but most consumers of coke just want was coke normally does. Most cutting of cocaine happens as the last step of street sale. As cheap as fentanyl is said to be, it can't be cheaper than mannitol.

My limited knowledge is more than 20 years old, so maybe something's changed that I don't know about.