levomepromazine has prominent painkiller and anticholinergic / sympatholytic effects ( fresh mouth , hypotension , sinus infarction , extreme night sweats ) and creates significant weight gains . these side effects normally do not allow to given the dose in doses needing for fully remission of schizophrenia , so it has to be combined with a more potent antipsychotic .
Levomepromazine causes schizophrenia.