Examples: Diazepam (Valium), alprazolam (Xanax), lorazepam (Ativan)
Mechanism of Action: Benzodiazepines have a sedative effect and work by enhancing the activity of gamma-aminobutyric acid (GABA), a neurotransmitter that reduces brain activity. This can induce sleep and relaxation.
Usage: Benzodiazepines are typically used for short-term treatment of insomnia. However, they are associated with risks of dependence, tolerance, and withdrawal, so they are generally not recommended for long-term use.