Sleeping pills are used to achieve sedation, hypnosis and central inhibition by suppressing central excitability. There is no benefit to taking sleeping pills in excess and they must be discontinued. The side effects of taking sleeping pills are mainly the following: 1, the nervous system: mainly dizziness, memory loss, drowsiness, ataxia, loss of perception, loss of tendon reflexes, etc. In severe cases, coma, convulsions, dilated pupils, loss of response to light can occur; 2, respiratory and circulatory system: initially the patient’s respiratory rate is slowed and regular, later it becomes slowed and irregular breathing, and in severe cases appear respiratory distress, cyanosis, accelerated pulse rate, decreased blood pressure, low urine, circulatory failure and other symptoms; 3, skin: including rash, nausea, vomiting, constipation, etc.; 4, sleeping pills if taken too much at once for a long time and not found can directly lead to the death of the patient.