Investigating the effects of mixing opioids with xylazine.

Behavioral Pharmacology of Opioid/Xylazine Mixtures

NIH-funded research University of Texas Hlth Science Center · NIH-11049354

This study is looking into how mixing opioids with xylazine, a sedative used for animals, affects people, especially during the opioid crisis worsened by COVID-19, to better understand the risks and help those struggling with these substances.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Texas Hlth Science Center NIH-funded
Lab location1 site (San Antonio, United States)
Project IDNIH-11049354 on NIH RePORTER

What this research studies

This research explores the increasing use of opioid and xylazine mixtures, particularly in the context of the opioid crisis exacerbated by the COVID-19 pandemic. It aims to understand the behavioral pharmacology of these mixtures, including their effects on the body and potential risks such as respiratory depression and overdose. The study will involve experimental testing to evaluate how xylazine, a veterinary sedative, interacts with opioids and affects withdrawal symptoms. By examining these interactions, the research seeks to provide insights into the rising trend of these dangerous combinations.

Who could benefit from this research

Good fit: Ideal candidates for this research include individuals who use opioids and may have been exposed to xylazine, particularly those experiencing withdrawal symptoms.

Not a fit: Patients who do not use opioids or have no history of substance use may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to better understanding and treatment options for individuals affected by opioid and xylazine use, potentially reducing overdose deaths.

How similar studies have performed: While the specific combination of opioids and xylazine has not been extensively studied, there is a growing body of research on opioid interactions that suggests potential for significant findings.

Where this research is happening

San Antonio, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.