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Attempts to classify Alzheimer's disease (AD) subjects versus controls using spectral-band measures of electroencephalographic (EEG) data typically achieve around 80% success. This study assessed the ability of adding non-linear EEG measures and using a neural-net classification procedure to improve this performance level. The non-linear EEG measures were(More)
Cholinesterase inhibitors are the 'first-line' agents in the treatment of Alzheimer's disease. This article presents the latest information on their pharmacokinetic properties and pharmacodynamic activity. Tacrine was the first cholinesterase inhibitor approved by regulatory agencies, followed by donepezil, rivastigmine and recently galantamine. With the(More)
BACKGROUND Concomitant fluvoxamine use can potentially reduce the dosage of clozapine needed in treatment-refractory patients with schizophrenia. Previous reports have shown that fluvoxamine can increase plasma clozapine concentrations by inhibition of cytochrome P450 (CYP) 1A2. We evaluated the safety and efficacy of fluvoxamine, 50 mg/day,(More)
The future of depot neuroleptic therapy is discussed in terms of pharmacokinetic and pharmacodynamic research opportunities. Analytic methods for neuroleptic assays, including chromatographic, radioreceptor, nuclear magnetic resonance, and radioimmunoassay techniques, are briefly reviewed. Elucidation of depot neuroleptic multicompartment kinetics utilizing(More)
Plasma concentrations of clozapine and its metabolites desmethylclozapine and clozapine N-oxide were measured in 61 patients with refractory schizophrenia. Before the initiation of clozapine, each patient was given haloperidol (HL) up to 60 mg/day for at least 4 weeks without improvement. Patients were then given a fixed dose of clozapine 400 mg/day.(More)
The pharmacology and pharmacokinetics, adverse effects, drug interactions, efficacy, and dosage and administration of the new selective serotonin reuptake inhibitors paroxetine, sertraline, and fluvoxamine are reviewed. Paroxetine, sertraline, and fluvoxamine all have large volumes of distribution and are highly bound to plasma proteins. In contrast to(More)
HIV infection and psychotic illnesses frequently coexist. The atypical antipsychotic olanzapine is metabolized primarily by CYP1A2 and glucuronosyl transferases, both of which are induced by the HIV protease inhibitor ritonavir. The purpose of this study was to determine the effect of ritonavir on the pharmacokinetics of a single dose of olanzapine.(More)
The introduction of clozapine has given clinicians a unique agent for treating patients with schizophrenia that is refractory to other neuroleptics. Despite its efficacy, the drug continues to be prescribed with trepidation due to the incidence of agranulocytosis. This article reviews the pharmacokinetic and pharmacological properties of clozapine and the(More)
The drug-drug interaction between fluvoxamine (FLV) and clozapine (CLZ) was evaluated by in-vitro and in-vivo methods. In-vitro studies were conducted using human hepatic microsomal preparations with standard chemical inhibitors of the cytochrome P450 (CYP 450) isozyme system. Furafyline, FLV, troleandomycin (TAO) and erythromycin were used as the chemical(More)
The disposition of the atypical clozapine and its desmethyl metabolite were evaluated in fourteen male chronic patients. A single 100 mg dose of clozapine was administered and blood sampling performed over the following 72 hours. The mean (SD) oral clearance and half-life of clozapine were 55.4 (29.7) L/hr and 13.7 (9.9) hours, respectively. The mean (SD)(More)