Which type of drugs can be classified as CNS depressants?

CNS depressants are substances that reduce the activity of the central nervous system, leading to effects such as relaxation, decreased inhibition, and sedation. Alcohol and benzodiazepines are prime examples of CNS depressants. Alcohol functions by enhancing the effects of the neurotransmitter GABA, leading to sedative and anxiolytic effects. Similarly, benzodiazepines work by targeting the same neurotransmitter, providing a calming effect and reducing anxiety.

Understanding substances in this category is crucial for prevention specialists, as they can lead to significant impairment and have a risk of dependence. The impact of these depressants on the body can vary based on dosage and individual factors, contributing to issues such as respiratory depression, especially when combined with other depressants.

The other options do not fit this classification:

Stimulants, for example, have the opposite effect as they increase activity in the central nervous system, which is contrary to the effects of depressants. Antidepressants work primarily to enhance mood and alleviate symptoms of depression rather than depressing CNS activity. Over-the-counter pain relievers, while they may have sedative properties in some cases, are not classified as CNS depressants in the context of this question.