Eszopiclone is a sedative-hypnotic drug commonly used in clinical practice, and usually sleep can be obtained 20-60 minutes after taking one orally. Eszopiclone belongs to the benzodiazepine class of sleeping drugs, with anxiolytic, hypnotic and anti-seizure effects, which can inhibit different parts of the central nervous system. Generally after taking one pill, patients can fall asleep in 20-60 minutes, and can continue to sleep for about 5-8 hours or so. If the patient has insomnia for a longer period of time and insists on taking oral sleeping pills for a long time, the duration of action of this drug will be relatively shortened. Because eszopiclone can cross the placental barrier and can be present in breast milk, this drug should be contraindicated in pregnant and lactating women. The common adverse effects of this drug are dry mouth, drowsiness, weakness, etc. If the dose is high, it may also cause ataxia and other conditions, and should be taken under the guidance of a professional psychiatrist or neurologist. In addition, the long-term application of eszopiclone may lead to dependence, and long-term oral administration by oneself should be avoided.