Most acute psychotic episodes are regarded as indicators of schizophrenia.
We developed an algorithm for the treatment of such episodes. In Japan, psy
chiatrists tend to prescribe two or more neuroleptics at once, but is thoug
ht that using a single neuroleptic is better, and the algorithm we report i
s based on this view. Since there are few reports on how to choose and use
a single neuroleptic in Japan, our method is simply an example, with insuff
icient scientific support. It will need to be revised in future.