Emergency services in Moncton, New Brunswick, reported a sharp rise in overdose incidents over the weekend as animal tranquilizers may be contaminating the illegal drug supply.
This surge indicates a potentially lethal shift in the local illicit market. The introduction of veterinary sedatives into fentanyl supplies can make overdoses more difficult to treat and increase the risk of death.
Frontline workers and the executive director of Moncton's Harvest House said the drug supply is currently unpredictable. The suspected contamination of fentanyl with animal tranquilizers has led to more severe overdose reactions across the city.
Emergency response data from the weekend, spanning Friday to Monday, shows a high volume of calls. The Moncton fire department responded to 52 overdose cases [1]. Meanwhile, Ambulance New Brunswick said it received 65 suspected overdose calls in the greater Moncton region during the same period [2].
Harm-reduction workers are on high alert as they navigate the increased volatility of the street supply. The presence of tranquilizers often masks the effects of opioids or creates a synergistic effect that suppresses respiration more aggressively than fentanyl alone.
Local officials and health providers are urging caution and the use of available harm-reduction services to prevent further fatalities. The spike in incidents highlights a growing vulnerability in the regional public health infrastructure as it faces evolving chemical threats in the illegal drug trade.
“Animal tranquilizers may be contaminating the illegal drug supply.”
The appearance of animal tranquilizers in the drug supply represents a dangerous escalation in the opioid crisis. Unlike standard opioids, veterinary sedatives may not respond to naloxone, the standard overdose-reversal drug, which complicates emergency interventions and increases the likelihood of fatal outcomes in Moncton.
