I just wanted to throw this in the conversation have you tried ketamine nasally. I have been on it for awhile now for migraines and it is very cheap even without insurance. I know that ketamine is beginning to be used for depression nasally at least in some places. Sorry, I can't help you more with the infusion question but I had looked into it myself a while back and they all seemed to be fairly expensive. I know my prescription cost like $50 a month without insurance for the nasal spray so maybe you could look into that. Hope this info helps.