Amisulpride, a new antipsychotic drug, does not treat insomnia and is mainly used clinically for the treatment of schizophrenia. Amisulpride is the active ingredient of an older drug, sulpiride, so its therapeutic effect is very good, with relatively high efficiency and relatively few side effects. It has relatively few treatment targets and can effectively control schizophrenia, especially for positive symptoms as well as negative symptoms. Therefore, it is currently used more clinically and is especially indicated for the treatment of schizophrenia, but this drug should not be used for the treatment of insomnia. It can be used for the treatment of schizophrenia, but it should never be used as a drug for the treatment of insomnia.