Even a juvenile would be difficult to capture alive, I think.
Too little anthesia and you have a ticked off.... something. If it is a primate, even a small one, it's going to fight like a primate...all testicles and spectacles (eyes and groin).
Too much, and you now have a dead something. It would have been easier to use a regular firearm.
You could set a trap of some sort, a la Mountain Monsters. But, their strength, intelligence, speed, etc. would have to be taken into account and neutralized.
Btw, @hiflier...
ETA: Skinwalker tagged Hiflier while I was posting