I've been having ketamine infusions for Treatment Resistant Depression (TRD) and PTSD for over a year now. Initially, I had to have 6 infusions in 2 weeks at $495 each, then I went monthly. Now I get compounded oral sublingual ketamine 150mg which I take every other day and this sustains me for quite a while. I went on TV with my doctor and he gave me a freebie. Now he knocked the price down to $450. I'm going for a booster tomorrow. It saved my life. I've been reading that some people have infusions for pain. I don't know why insurance won't pay for that since ketamine is used for pain. It's only off-label for depression I thought. I'm trying to find a way around these big payments since I live on SSDI. My credit cards are getting maxed. My idea was to see if my pain management doctor would do muscular injections and if that would be paid by insurance. The nasal spray doesn't work. I would recommend a book called "The Ketamine Papers" - Edited by Phil Wolfson,MD and Glenn Hartelius, PhD. Tons of information. I'm also searching for clinical trials.