Skip to content

Friday, Oct. 11, 2024

Has xylazine, a horse tranquilizer used as a drug, caused deaths in Colorado?


yes

Xylazine is an animal tranquilizer used on horses that produces some of the same sedative effects as opioids. It is not approved for human use. 

State health officials said some fentanyl users use the drug to help extend the effects of fentanyl and stave off withdrawal. The drug affects the central nervous system, causing drowsiness, amnesia and low blood pressure. Because it acts like a sedative, xylazine makes it hard to distinguish whether someone has overdosed on opioids. There is no known antidote.

See a full discussion of this at The Colorado Sun

This fact brief is responsive to conversations such as this one.

About fact briefs

Fact briefs are bite-sized, well-sourced explanations that offer clear "yes" or "no" answers to questions, confusions, and unsupported claims circulating online. They rely on publicly available data and documents, often from the original source. Fact briefs are written and published by Gigafact contributor publications.

See all fact briefs

The Colorado Sun is a journalist-founded, award-winning and nonprofit news outlet based in Denver that strives to cover all of Colorado so that our state — our community — can better understand itself. In this way, we believe we can contribute to a more vibrant, informed and whole Colorado. We are committed to fact-based, in-depth and nonpartisan journalism. We cover everything from politics and culture to the outdoor industry and education. Our goal is to produce the best possible journalism. We do that with the help of you, our readers, and community backers. We launched on Sept. 10, 2018.

Learn More

Be a Friend of facts

Help us fund more great fact briefs like this one.