I was recently surprised to learn about how big of an industry already exists around ketamine therapy. A search in your area (if in the US) would likely turn up several clinics nearby.
Bay Area: https://bit.ly/2S3VNjW Austin: https://bit.ly/3ccj2zk
Bay Area: https://bit.ly/2S3VNjW Austin: https://bit.ly/3ccj2zk
If anyone knows a dope (no pun intended) psychiatrist for general purposes in ATX, I could use contact info.