Which of the following is an example a central nervous system depressant?

The correct answer is Barbiturates

Barbiturates are a class of drugs that are used to treat a variety of conditions, including seizures, anxiety, and insomnia. They work by slowing down the activity of the central nervous system. This can lead to a number of side effects, including drowsiness, dizziness, and confusion. In some cases, barbiturates can also be addictive.