How to make a person pass out/ faint??

Question

i have seen in movies that there are liquids that can make you pass out after you smell them. is that some kind of medicine? what is that liquid called and how does it make a person pass out?

Answer 1

Chloroform is the stuff that is put into the handkerchief and pressed over the face of the person who will then faint.

Ether can also be used to make a person faint. In fact, in the earlier days of surgery, it was used as the anesthetic.

Answer 2

chloroform  it subdues the brain and you go into deep sleep,   it will kill if given to large a dose