El Mayo co-founded the notorious Sinaloa crime syndicate with El Chapo, who is currently jailed in the US.

Nitazenes, which can be stronger than fentanyl, are behind an increase in overdose deaths, the UN says.

Thousands of Chinese companies are making synthetic opioids and shipping them around the world.

Bryan Emery was a fentanyl user living on the streets of San Francisco, a city hard-hit by the opioid crisis.

Ellie Baxter tells court how her parents became irritated by Luke D'Wit's frequent presence.

More Mexicans are consuming the deadly drug, leading to a spike in overdoses.

The government accused eBay of making it too easy to buy equipment for producing counterfeit pills.

The order seeks to curtail public drug use and overdoses caused by the drug in Oregon's largest city.