Dexrazopiclone is a sedative-hypnotic drug, mainly used for the treatment of insomnia, the recommended starting dose for adults is 2mg per dose at bedtime, with the possibility of increasing to 3mg. The recommended dose for elderly patients with sleep maintenance disorders is 2mg per dose, because the drug works faster, so it can be taken immediately before bedtime. However, it is important to note that if the drug is taken with food with a high fat content or if more food is eaten before taking the drug, the absorption of the drug may be delayed and the onset of sleep may be prolonged. Avoid taking foods with high fat content if you want to have an immediate effect.