The anesthetic effect of short-acting intravenous anesthetics is similar to that of sodium, but its effect is about 1.8 times stronger. Has quick action and short maintenance time. The induction effect is good, the effect is stable, there is no excitement, and the depth of anesthesia can be controlled by intravenous drip or repeated use, without significant accumulation, and the patient has a clear mind and can recover quickly after waking up. Used for inducing anesthesia and maintaining anesthesia.