Medetomidine, a veterinary sedative mixed into fentanyl, has sent thousands to hospitals, not only for overdose but for life-threatening withdrawal. It is spreading to other cities.

Nausea, sweating, and diarrhea are just some of the possible symptoms of opioid withdrawal. How soon those symptoms start and how long they last can vary by person, but the general opioid withdrawal ...

Heroin, or opiate, withdrawal is the gold standard of addiction withdrawal. Imagine the worst flu of your life and then imagine knowing that taking a hit of this stuff will make it all better. Think ...