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CU Boulder

Five Suspected Fentanyl Overdoses in 36 Hours Send Boulder Police to Campus Screens and Social Media

COpublic healthadvisorymedium confidence
Confirmed Threat

Between Tuesday April 11 and Wednesday April 12, 2023, Boulder Police responded to five suspected fentanyl overdoses in just 36 hours, with multiple victims found unconscious and revived with Narcan. In response, CU Boulder posted health warnings not only on social media but on digital message-board television screens throughout campus, and Boulder County later issued a separate public health alert warning of powdered fentanyl resembling drywall plaster that had been found near a fatality in the area. All five overdose victims survived.

Alerts
1
Response
Killed
0
Injured
5
Institution
University of Colorado Boulder
Public R1 · CO
CU Boulder Alerts
Confirmed Timeline

Alert Sequence

1 message in sequence

Some alert texts below are approximate reconstructions from news coverage, not confirmed verbatim transcripts. Reconstructed texts are shown in italic with a dashed border. Verified verbatim texts have a solid border and are marked accordingly.

INITIAL ALERTWebsite
Approximate reconstruction473 chars
Boulder Police Department is warning the community after five suspected fentanyl overdoses occurred within 36 hours in Boulder. Officers administered Narcan to multiple victims. Police believe there could be a new type and/or tainted strain of fentanyl on the street. If you use substances, please do not use alone, carry Narcan, and use fentanyl test strips. Free Narcan and fentanyl test strips are available through Collegiate Recovery at the University Memorial Center.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

CU Boulder pushed the warning to both social media and campus-wide digital message-board screens after five overdoses in 36 hours; the reconstructed wording reflects what multiple outlets reported the police and university advisory said.
Three of the five overdoses occurred on Tuesday April 11, with two just 20 minutes apart; two more occurred on Wednesday April 12, and Narcan was administered in at least two cases where victims were found unconscious and not breathing.
Boulder Police specifically used language about a possible 'new type and/or tainted strain of fentanyl,' consistent with street-level intelligence about supply variation that often precedes overdose clusters.
Context

Background

On April 11-12, 2023, Boulder Police responded to five suspected fentanyl overdoses in just 36 hours across the city, including areas near the University of Colorado Boulder campus. Boulder Police issued a warning on April 13 expressing concern that a new or tainted strain of fentanyl may have entered the local market, noting that all five victims were revived, most with Narcan. CU Boulder amplified the warning on social media and on digital television screens throughout campus, an example of the university integrating campus-wide digital signage into its harm-reduction communication strategy. A separate Boulder County public health alert warned of a powdered form of fentanyl -- pink or tan in color, with a texture similar to drywall plaster -- found near a fatality in the county. The spring 2023 cluster followed the deaths of several CU students in prior years attributed to fentanyl and contributed to Colorado's broader campus-awareness campaign: by October 2023, ten Colorado colleges had jointly launched a fentanyl-awareness campaign after years of on-campus and near-campus fentanyl deaths.
Analysis

Key Findings

Five suspected fentanyl overdoses occurred in 36 hours in Boulder in April 2023, with Narcan administered by officers to multiple victims who were found unconscious or not breathing.
CU Boulder's response included pushing the public health warning to both social media accounts and digital message-board TV screens distributed across campus, demonstrating an integrated harm-reduction communication approach.
Boulder County later issued a separate alert about powdered fentanyl found near a local fatality, warning residents it resembled drywall plaster in texture and came in pink or tan shades.
The cluster was part of a sustained fentanyl crisis near the CU Boulder campus that eventually prompted a joint ten-college awareness campaign across Colorado in fall 2023.
Provenance

Sources

  1. News
  2. News
  3. national media
  4. Official
  5. News
Tags
public-healthfentanylopioidoverdosenarcancoloradoboulderadvisoryharm-reductiondigital-signage
Added May 2026Updated May 2026Via ingestion