The drug that functions as depressant of CNS is

The drug used as an anti-depressant is

The drug not used as an anti-depressant is

One of the following drug acts as depressant to our central nervous system.

Which of the following drug is extracted from the latex of poppy plant Papaver somniferum, generally taken by snorting and injection, is a depressant and slows down body functions?

Which of the following drug is extracted from the latex of poppy plant Papaver somniferum, generally taken by snorting and injection, is a depressant and slows down body functions?

Which of the following drug acts as a stimulant of CNS?

A drug after administration causes depression and slows down body functions. The receptors for his drug are present in the