New street drug medetomidine complicating how overdoses are treated

A potent animal tranquilizer known as medetomidine is fueling a surge in overdoses across the nation. Unlike opioids, which can be countered with naloxone, also known as Narcan, medetomidine doesn’t respond to the life-saving drug, making it even more dangerous when mixed with other substances. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: Breaking News Alerts: