In terms of their effects on consciousness, depressants are the opposite of stimulants. They reduce one's awareness of external stimuli, slow bodily functioning, and decrease levels of overt behavior. Predictably, one's reaction to depressant drugs depends largely on how much is taken. In small doses, they may produce relaxation, a sense of freedom from anxiety, and a loss of stifling inhibitions. In greater amounts, they may produce sedation, sleep, coma, or death.
Alcohol is the most commonly used of all depressants.
Alcohol is a dangerous drug because of its popularity and widespread use, if for no other reason. It can be a deadly drug. Over 100,000 deaths a year in the United States are attributed to alcohol use. The devastating effects of alcohol consumption by pregnant women are also well documented. Perhaps the first thing to remember about alcohol is that it is a depressant.