Conventional neuroleptic drugs are thought to derive their antipsychotic efficacy through influences on the mesolimbic dopamine (DA) system. In contrast, motor side effects of these drugs are suggested to follow from influences on the nigrostriatal DA system. This conceptualization is based on the assumption that behaviors mediated by the mesolimbic DA system are involved in schizophrenia while...

OBJECTIVE To compare the efficacy of clozapine with typical antipsychotic drugs in controlling impulsivity and to explore the possible correlation of impulsivity with plasma 5-hydroxytryptamine (5-HT) levels, plasma 5-hydroxyindoleacetic acid (5-HIAA) levels and plasma 5-HT turnover. DESIGN Prospective, cross-sectional study open to medication and blinded to biochemical analyses. PARTICIPAN...

WARNING Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 ...

Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 t...

WARNING Increased Mortality in Elderly Patients with Dementia-Related Psychosis— Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug treated patients of between 1.6...

WARNING Increased Mortality in Elderly Patients with Dementia-Related Psychosis— Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drugtreated patients of between 1.6 ...

Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 t...

properties at high blood concentrations. MacLeod and Lamberts3 have shown the dopamine agonist effects of high concentrations of haloperidol and pimozide on prolactin release. Seeman4 has shown that very high concentrations of some antipsychotic drugs may enhance presynaptic release of neurotransmitters, including dopamine. Altematively, at high concentrations of antipsychotic drugs maximal dop...

NMDA receptor (NMDA-R) antagonists are extensively used as schizophrenia models due to their ability to evoke positive and negative symptoms as well as cognitive deficits similar to those of the illness. Likewise, 5-HT2A receptor agonists display hallucinogen actions resembling psychotic symptoms. Overall, these drugs are useful models of schizophrenia for the screening of new antipsychotic dru...

Increased Mortality in Elderly Patients with Dementia-Related Psychosis: Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 ...