you are right about veterinary med. ... but there are some great uses for it in human med, too...
pros: cardiovascular stimulant, minimal loss of respiratory drive, quick onset, if lucky great pain med
cons: unclear assoc w/ PONV, some patients go absolutely wacky
best memory about ketamine: patient attacking nurses in the unit, absolutely wild... snuck up from behind and hit him with full dose IM and then hid... he was down in 30 or so seconds
and he was still breathing.