Dexamethasone belongs to a group of glucocorticoids, which are long-acting glucocorticoids. It has clinical anti-inflammatory, immunosuppressive and anti-allergic effects, anti-toxic effects and anti-shock effects. The drug has an effect on the blood and hematopoietic system, increasing platelets and raising the concentration of fibrinogen and shortening the clotting time. It can also increase the excitability of the central nervous system, with symptoms such as euphoria, agitation, insomnia, sweating, etc. It can even induce psychosis or seizures.