Special report: Inside the UK's ketamine crisis
With data showing increasing numbers of people using the drug, and the government considering reclassifying it, Sky's Shingi Mararike has been speaking to people who have experienced life-changing consequences - and those trying to help them.
Health workers on the frontline of drug recovery have told Paste BN that the UK faces a tidal wave of problems if more isn't done to stop people taking ketamine.