It has a reputation as a party drug, but some patients say it has transformed their lives after no other treatments helped
When depression takes hold of Helen it feels like she is drowning in a pool of water, unable to swim up to the world above. The 36-year-old former nurse has had mental health problems most of her life. No drugs, hospital stays or therapies have been able to help.
Then one day, during yet another spell in hospital, her consultant told her about a psychiatrist treating patients with ketamine. The psychiatrist in question visited her to discuss using the drug. He warned there were no guarantees, but it had helped some patients.