5. Study populations:The study plan to enroll 1000 subjects in China. （6）The background and the hypothesis：The researches of ziprasidone mesylate injection in our country are more concentrated in schizophrenia at present, while in foreign countries ziprasidone is approved for psychotic agitation, including mania etc. It's also used for substance abuse and alcohol induced agitation.Therefore, this study assumes that ziprasidone mesylate injection is effective in the treatment of acute agitation, and it's well tolerated.