DEA Rocky Mountain Field Division Issues Warning After SW Lab Findings
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  • DEA Rocky Mountain Field Division Issues Warning After SW Lab Findings

DEA Rocky Mountain Field Division Issues Warning After SW Lab Findings

June 29, 2026
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Download Press Release
For Immediate Release
Contact: Steffan W. Tubbs
Phone Number: 571-387-5079

Carfentanil and Heroin Found in Fentanyl Pills

Recently seized fentanyl pills in both clear and green wrapping
DEA WARNING.jpg

DEA's Southwest Lab identified both mixtures of fentanyl/carfentanil and fentanyl/heroin in pills analyzed after recent seizures in Colorado and Utah.

CENTENNIAL, CO – The Drug Enforcement Administration's Rocky Mountain Field Division (RMFD) is issuing a warning after DEA's Southwest Laboratory identified illicit pills containing mixtures of both deadly fentanyl/carfentanil and fentanyl/heroin. The drugs were found in tablets after lab analyses of recent seizures in both Colorado and Utah.

"With these findings, once again we implore people in our communities to NEVER take a pill from anyone unless it comes from a prescribing doctor or pharmacy," said DEA RMFD Special Agent in Charge David Olesky.

Fentanyl remains the biggest drug threat the United States has faced in its history. It has killed hundreds of thousands of Americans the past decade.

Carfentanil is an animal tranquilizer 100 times stronger than fentanyl.

Heroin, a highly addictive opioid, is rarely found in pill form and the drug combination with fentanyl is highly unusual. 

Pills found to contain both fentanyl/carfentanil and fentanyl/heroin in recent DEA seizures in Colorado and Utah were blue, green, and blue-green in color.

In Colorado, pills with the potentially deadly combination of illicit drugs were seized in both the Denver area and the Western Slope. In Utah, seized pills were in the greater Salt Lake City area.

DEA is committed to fighting for a Fentanyl Free America. More can be found at www.DEA.gov/fentanylfree. 

Download Press Release
###
Fentanyl Heroin
US Department of Justice - Drug Enforcement Administration

Drug Enforcement Administration

David S. Olesky Special Agent in Charge - Rocky Mountain
@DEAROCKYMTNDiv
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