| 摘要 |
The present invention relates to a method for treating a psychiatric conditions and disorders selected from delusional disorder, psychosis associated with dementia, such as psychosis associated with Alzheimer's disease, psychosis associated with an organic brain syndrome (e.g. stroke, o r a viral infection such as an HIV infection), and drug-induced psychosis in mammals, including humans, comprising administering an effective amount of a compound of the formula (I), or a pharmaceutically acceptable acid addition salt thereof, wherein Ar, n, X, and Y are as defined. The present invention also relates to a method for treating a depressive disorder selected from melancholic depression, severe depression, psychotic depression, and treatme nt- resistant depression in mammals, including humans, comprising administering a compound of formula I, or a pharmaceutically acceptable acid addition salt o f such compound.
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