Per Wikipedia:
"Esketamine, sold under the brand names Ketanest among others, is a general anesthetic and a dissociative hallucinogen. It is the S(+) enantiomer of ketamine, which is an anesthetic and dissociative similarly. It is given by intravenous infusion."
Yes, this is what we want depressed people snorting. I used to use a migraine med - nasal spray. Worked instantly, always. But it was a med you couldn't use more than twice a month.
You think depressed dudes are going to only use this at a certain dosage? Nope.
Combine this with digital devices and Pokemon, they'll really be walking into traffic.