OBJECTIVE This 52-week randomized, double-blind, flexible-dose, multicenter study evaluated the overall effectiveness (as measured by treatment discontinuation rates) of olanzapine, quetiapine, and risperidone in patients early in the course of psychotic illness. METHOD Patients were randomly assigned to treatment with olanzapine (2.5-20 mg/day), quetiapine (100-800 mg/day), or risperidone (0...

Olanzapine is the one of first line antipsychotic drug for schizophrenia and other serious mental illness. However, it is associated with troublesome metabolic side-effects, particularly body weight gain and obesity. The antagonistic affinity to histamine H1 receptors (H1R) of antipsychotic drugs has been identified as one of the main contributors to weight gain/obesity side-effects. Our previo...

Olanzapine is an atypical antipsychotic clinically very effective in the treatment of schizophrenia and related psychoses with better efficacy and tolerability than older generation antipsychotics. Recently there are flurry of reports that olanzapine is associated with high blood sugar levels in new onset of diabetes mellitus or pre-existing diabetes mellitus. The authors report a series of dia...

Background: Borderline Personality disorder is a disabling disease affecting 2% of general population. Various drugs have been suggested for treatment of borderline Personality disorder. If a drug could alleviate a wide range of symptoms, it would be more suitable. In these disorders drug addiction is very common. This fact makes the symptoms complicated and the treatment more difficult. This...

Oxidative stress has been suggested to contribute to the pathophysiology of schizophrenia. Increased oxidative stress is the result of either an increased production of free radicals or a depletion of the endogenous antioxidants. However, whether this imbalance of oxidant-antioxidant status in schizophrenia is integral to disease itself or the effect of antipsychotic drugs is not clearly unders...

Background: Persistent methamphetamine (METH) psychosis is a psychotic state beyond 1-month after abstinence, for which there is no effective treatment. This study aimed to evaluate the effectiveness of electroconvulsive therapy (ECT) in persistent METH psychosis patients hospitalized at Shahid Beheshti Hospital, Kerman, Iran, from 6 September 2012 until 6 September 2013, who were not remitted ...

somnambulism consists of a group of behaviors leading to unwanted movements during sleep or even sleepwalking. medications applied for psychiatric disorders could increase the likelihood of somnambulism in adults. the following article is a case report of somnambulism seen in a patient with schizophrenia, which occurred after remission of an acute episode following treatment with olanzapine. wh...

BACKGROUND Antipsychotic medications are the mainstay for schizophrenia treatment, and olanzapine and risperidone are popular choices among atypical antipsychotics in Norway. Our aim was to develop a decision analytic model to evaluate the cost-effectiveness of antipsychotics in a Norwegian setting. METHODS The Positive and Negative Symptom Scale (PANSS) score was used to measure effectivenes...

Although second-generation antipsychotics induce severe weight gain and obesity, there is a lack of detailed knowledge about the progressive development of antipsychotic-induced obesity. This study examined the hypothalamic histamine H1 receptor and AMP-activated protein kinase (H1R-AMPK) signaling at three distinctive stages of olanzapine-induced weight gain (day 1-12: early acceleration, day ...

BACKGROUND Bipolar disorder is a highly recurrent disease and has great impact on the function of patients. Depressive symptoms consist of more than 50% of life time during the illness and may lead to self harm or suicidal behaviors. Little is known about the antidepressant effects of olanzapine, an atypical antipsychotic, as monotherapy despite its indication for preventing manic episodes. In ...