Er... "excited delirium" is both very real and very serious, a constellation of symptoms due to another underlying process (e.g., drugs, usually of the illicit nature). It can generally be treated well with Ketamine.
Ketamine, I do believe, is an animal tranquilizer. Not being a veterinarian, I don't know much about that application. However, in humans it has shown tremendous benefit as an analgesic and a dissociative agent, with a tremendous safety profile.
https://en.wikipedia.org/wiki/Ketamine
Ketamine has very important human use. From article above:
"It is on the World Health Organization's List of Essential Medicines"
Ketamine is a very safe and effective drug when used properly. In many areas it's a first drug of choice for prehospital ("ambulance") sedation. Around here our protocols prefer benzodiazepines like Versed, but we have Ketamine on the rig, and use it in cases like this.
One has to be quite careful with type of comment. Of course humans are animals, but we are animals of a particular species and what one animal species eats or easily tolerates, can be deadly to another animal species.
Some simple examples to illustrate the point. Chocolate and grapes are dangerous, even deadly for dogs yet of course are not only tolerated, but even actively enjoyed by the vast majority of humans with no ill effects.
https://www.aspca.org/pet-care/animal-poison-control/people-...
I was not claiming all substances safe for one animal are safe for all animals. I'm claiming "animals" is a superset that includes "humans".