Ketamine is making waves across Europe, decades after it emerged as a medical anaesthetic in the 1960s and became popular as a recreational drug in the 1980s and 1990s. In more recent years, researchers have been exploring its potential to treat depression in low doses, and ketamine-assisted therapy clinics have cropped up across Europe, including in the Czech Republic, Poland, Spain, the United Kingdom, and Switzerland. But the drug catapulted into the public consciousness after American actor Matthew Perry died from the “acute effects of ketamine” in 2023. Perry acquired the drug illegally i…