My psychiatrist gave me ketamine in my IV while having ECT to reduce the seizure threshold and said it may help my depression. It was hell. I was intensely confused for a week and slept for days. Psychologically I was way off, dissociating, disorientated and extremely emotional. I thought I was going mad. I had been relatively fine after non ketamine ECT but this was something else entirely. I am almost recovered ten days on but told my psychiatrist never again with ECT.