镇静催眠药:能够缓和激动,消除躁动,使人恢复安静情绪的药物称为镇静药。能够促进和维持近似生理睡眠的药物称催眠药。但同一种药物,剂量较小可以起镇静作用,剂量较大时则起催眠作用。可见, Sedative hypnotics: to ease the excitement, eliminate restlessness, restoring sedative drugs called sedatives. Medications that promote and sustain similar physiological sleep are called hypnotics. However, the same drug, the smaller dose can play a sedative effect, hypnosis when the dose is greater. visible,