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Richard F. Bergstrom

Researcher at Indiana University

Publications -  53
Citations -  3094

Richard F. Bergstrom is an academic researcher from Indiana University. The author has contributed to research in topics: Olanzapine & Fluoxetine. The author has an hindex of 28, co-authored 53 publications receiving 2885 citations. Previous affiliations of Richard F. Bergstrom include Indiana University – Purdue University Indianapolis & University of Michigan.

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Journal ArticleDOI

Olanzapine. Pharmacokinetic and pharmacodynamic profile.

TL;DR: Multicentre trials in patients with schizophrenia confirm that olanzapine is a novel antipsychotic agent with broad efficacy, eliciting a response in both the positive and negative symptoms of schizophrenia, and dosage modification should be considered for patients characterised by a combination of factors associated with decreased oxidative metabolism.
Journal Article

Fluoxetine: clinical pharmacology and physiologic disposition.

TL;DR: Pharmacokinetics of fluoxetine in the elderly and normal volunteers appear to be similar and pharmacokinetic analyses in patients with varying degrees of renal impairment did not show significant differences from healthy subjects.
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Olanzapine long-acting injection: a 24-week, randomized, double-blind trial of maintenance treatment in patients with schizophrenia.

TL;DR: Olanzapine long-acting injection was efficacious in maintenance treatment of schizophrenia for up to 24 weeks, with a safety profile similar to oral olanzapine except for injection-related adverse events, and the three standard long- acting doses were superior to the very low reference dose based on time to exacerbation.
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Duloxetine: clinical pharmacokinetics and drug interactions.

TL;DR: Patient demographic characteristics found to influence the pharmacokinetics of duloxetine include sex, smoking status, age, ethnicity, cytochrome P450 (CYP) 2D6 genotype, hepatic function and renal function, and pharmacokinetic results from drug interaction studies show that activated charcoal decreases dulxetine exposure, and that CYP1A2 inhibition increases dul oxetine Exposure to a clinically significant degree.
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Quantification and mechanism of the fluoxetine and tricyclic antidepressant interaction

TL;DR: The findings indicate that fluoxetine causes an inhibition of tricyclic 2‐hydroxylation and may decrease first‐pass and systemic metabolism and a lower dosage may be needed to maintain steady‐state concentrations and to avoid undesirable side effects caused by excessive tricyClic concentrations.