Depression is a side effect of Ketamine abuse.
Small doses are, under controlled by a doctor circumstances and monitoring. Also they use a nose spray to spray you and you need to return a while later with the visits getting sparser each time.
Abuse is hitting horse tranqs for the high.
It’s IV ketamine use which has shown to rewire the connections between nodes in the brain. These old connections have triggers for depression baked in more or less. So in rewiring the nodes, the baked in depression can be circumvented. The nasal spray then reenforces these new pathways which were created via IV treatment to help ensure the old ones aren’t used again by the brain. It’s a delicate process and abusing the drug definitely only makes assessing the process much more difficult.