You can't legally take this prescription home and administer it to yourself.It is also known in the news as the “ date rape drug. “ if it is true and some doctor was treating his depression with Ketamine they poisoned his system. Acute Ketamine poisoning. It is mainly used along during anesthesia… so was that really a smart avenue to put this man on? No… that’s how he drowned in the tub.
From Harvard Medical - A prescription version of ketamine called esketamine (Spravato), given through a nasal spray, was approved in 2019 by the FDA for treatment-resistant depression; however, according to the guidelines, it is only to be used "under the supervision of a health care provider in a certified doctor's office or clinic." That means medical professionals need to watch you use it, and then follow you after you've taken your dose, checking your vital signs and how you are doing clinically.