The common dose of eszopiclone is (1-2) tablets / times, the lowest dose is 1 tablet / times, routinely can not take half a tablet, if you need to take half a tablet, you need to consult a doctor and follow the doctor’s instructions. Eszopiclone has sedative, hypnotic and anxiolytic effects, and is mainly used to treat various types of insomnia, anxiety, nervousness, epilepsy and other disorders, with broad-spectrum anticonvulsant effects. The half-life of the drug is 10 to 24 hours, the common sedative dose for adults is 1 to 2 tablets / times, anticonvulsant 2 to 4 tablets / times, the lowest dose of 1 tablet / times, so routinely can not be taken half a tablet, because of the need to consult with a doctor and follow the doctor’s advice to take. Common adverse effects of the drug include dry mouth, drowsiness, weakness, and dependence. Precautions and contraindications of the drug include caution for those with severe liver or kidney impairment, lung disease, hypertension, etc.; it is contraindicated for those who are allergic to the drug, pregnant women, and glaucoma. The drug belongs to the psychotropic drugs, before use need to be strictly applied under the guidance of a doctor, do not increase or decrease the dosage or stop using without authorization, to avoid causing adverse consequences.