The correct answer for above statement is:
Depressant.
Step-by-step explanation:
A depressant, or primary depressant, is a pill that reduces neurotransmission levels, which is to reduce or lessen arousal or stimulation, in different regions of the brain. Depressants are also seldom mentioned as "downers" as they reduce the level of arousal when used.It greatly effect the nervous system and also dangerous for muscular system.