When taking one tablet of Zopiclone, most patients sleep for 5-6 hours. Judging by the half-life of zopiclone, about 8 hours the drug can be completely metabolized cleanly. Elderly people with incomplete liver and kidney function will have relatively slow metabolism, so they may sleep for 7-8 hours after taking it, and the onset of action will be slower than that of young people with normal liver and kidney function. Zopiclone is a sedative and sleeping drug to promote sleep, which has a faster onset of action. Patients with normal liver and kidney function can take the drug for 1.5-2 hours to achieve the best effect, and the patient can fall asleep quickly. In elderly people with hepatic or renal insufficiency, the peak blood concentration can be reached after about two hours of administration. Patients are advised to take Zopiclone tablets orally under the guidance of a physician, as this drug has a certain degree of addictive properties.