Method: The switching rate during therapy with antidepressants in 321 cases was investigated and analyzed according to the definition of mania, hypomania and rapid cycling induced by antidepressants.

方法：按照抗抑郁药物引起躁狂、轻躁狂、快速循环的定义，对321例接受抗抑郁治疗的病人出现躁狂、轻躁狂、快速循环进行调查、分析、比较。