The number of people who say they used ketamine in the last month has increased by 251.85% since 2015. avid Lee/REX ShutterstockThe number of people who say they used ketamine in the last month has increased by 251.85% since 2015. avid Lee/REX Shutterstock‘Absolutely frightening’: surge in ketamine cases hits UK urology wardsYoung adults and teenagers prevalent in ‘skyrocketing’ admissions linked to class B drug, say doctors in northern EnglandExperts have warned that urology departments across the UK could be close to breaking point as ketamine-related hospital admissions have “skyrocketed” in the past few years. Ketamine, a class B dissociative drug used for pain relief and sedation, is increasingly used recreationally in the UK.