[The guideline for the treatment of mood disorders in USA and Japan].

Recently, the number of available antidepressants has increased dramatically and psychopharmacological treatment is becoming complex. It is important to present some guideline for supporting clinical decision making. Three different kinds of guideline for the treatment of mood disorders, that is, the APA style guideline, the algorithm and the consensus guideline, have been developed in our country. The APA style guideline and the algorithm are basically evidence based and the consensus guideline is developed through the consensus panel format. These guidelines should be used as 'a starting point' for specifying decisions that will be modified occasionally.