Health authorities warn of potent sedative in drug supply

Substance users are advised not to take drugs alone as medetomidine is increasingly found in the Fraser Health region.

Medetomidine is approximately 200 times more potent than the veterinary sedative xylazine, often called “tranq,” according to a release from Fraser Health.

When found in the unregulated drug supply medetomidine is “almost always combined with opioids,” according to Fraser Health. The sedative is also often accompanied by xylazine and benzodiazepines.

“People may not know they have used medetomidine,” according to Fraser Health.

The drug might take effect after a few minutes, sometimes leaving the user unresponsive for several hours.

Naloxone does not reverse the effects of medetomidine. However, authorities still recommend administering naloxone when opioid poisoning is suspected.

Even after taking naloxone, someone who has used medetomidine may remain deeply sedated with a weak pulse and slow, shallow breathing.

“Airway protection and ventilation are crucial interventions,” according to Fraser Health. The release also noted several reports of severe withdrawal syndrome associated medetomidine.

Authorities recommend calling 911 if you believe someone has used medetomidine.

“The Good Samaritan Drug Overdose Act provides immunity from simple possession charges for those who call 911 in the case of a toxic drug event,” the release stated.

Substance users are advised to take less than usual and to stagger use.