CULIACÁN, Mexico—At a half-built house in a barrio, a longtime Sinaloa cartel employee used a shovel to mix chemicals in a simmering oil barrel.
His concoction was an illegal form of fentanyl, which Mexican criminal organizations are churning out at high volume in laboratories and smuggling across the border. In a six-day workweek, the cook said, he can make enough fentanyl for hundreds of thousands of doses.
With business savvy and growing power in Mexico, the Sinaloa and rival Jalisco cartels dominate the market for supplying fentanyl to the U.S. They cornered the market after China cracked down on fentanyl production several years ago and are now churning out bootleg versions of the highly potent synthetic opioid that, in its legal form, is used under prescription to treat severe pain.
Fentanyl’s inexpensive, easy-to-replicate formula has boosted its appeal to criminal networks. It is also fueling an overdose crisis that claimed more than 108,000 lives in the U.S. last year, a record.
“If it were an athlete, people would call it ‘The G.O.A.T.,’ ” said Jim Crotty, who served as deputy chief of staff at the Drug Enforcement Administration from 2019 to 2021. “It is in fact the most pernicious, the most devastating drug that we have ever seen.”
