Tranquilizers are used to treat anxiety or problems with sleep. They have a calming effect by depressing the nervous system in a way similar to alcohol.
Tranquilizers are frequently abused because of their ability to reduce anxiety.
Addiction develops because tolerance goes up and more and more are needed to be effective.
Besides craving the drugs, addicts can experience sleep problems, restlessness, loss of appetite and the shakes during withdrawal.
Long-term use of some of these drugs has been associated with increased aggressiveness and significant depression.
Tranquilizers have also been associated with memory problems and brain shrinkage.