Medetomidine: The dangerous animal sedative turning up in Scotland's street drugs
A sedative developed for cats and dogs is turning up in Scotland's illicit drug supply. Medetomidine has been found in a fifth of heroin samples in Scotland, and there is no proven antidote if someone overdoses.
Medetomidine, an animal sedative, has emerged as a dangerous substance in Scotland's drug market. Found in nearly one-fifth of heroin samples tested between April and July 2026, medetomidine poses significant risks when mixed with opioids like fentanyl, commonly used in Philadelphia. Unlike naloxone, the current antidote for opioid overdoses, there is no effective reversal medication for medetomidine in humans.
Symptoms include extreme sedation, slowed heart rate, and severe blood pressure fluctuations. While the drug's origins are unclear, it may be diverted from veterinary supplies or produced illegally. Glasgow has a safe drug consumption site, but more are needed across Scotland. Testing for medetomidine is currently limited to lab analysis, and raising awareness among drug users and first responders is crucial.
The U.K. government has recommended classifying medetomidine as a Class C drug and enhancing emergency responder training. However, the government's response remains pending, highlighting the urgent need for a safe reversal drug to counteract the drug's effects.
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