Which medication is often prescribed for insomnia?

Zolpidem is commonly prescribed for insomnia because it belongs to a class of medications known as sedative-hypnotics. It works by enhancing the activity of gamma-aminobutyric acid (GABA), a neurotransmitter in the brain that promotes sleep by inhibiting neuronal firing. This mechanism helps patients fall asleep more quickly and stay asleep longer, making it suitable for short-term treatment of sleep disturbances.

While other medications listed can have sedative effects, they are not primarily indicated for insomnia. Quetiapine and risperidone are antipsychotic medications typically used for disorders such as schizophrenia and bipolar disorder, and their sedative properties can sometimes lead to off-label use for sleep issues. Trazodone is primarily an antidepressant but is also used off-label for insomnia due to its sedating effects. However, Zolpidem is specifically designed for sleep induction and is generally preferred for insomnia due to its quicker onset and targeted action.