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Updated: Oct 14, 2025

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Vagus Nerve Stimulation As an Adjunctive Neurostimulation Tool in Treatment-resistant Depression
Published on: January 7, 2019
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Ketamine for depression - evidence and proposals for practice
Summary
Intravenous ketamine offers a rapid treatment option for serious depression when current therapies are ineffective. Despite some unknowns regarding side effects and duration, its clinical use is now recommended in Norway.
Area of Science:
- Neuroscience
- Psychiatry
- Pharmacology
Background:
- Current treatments for major depressive disorder are often inadequate, leaving many patients with persistent symptoms.
- A significant unmet need exists for more effective and rapid-acting antidepressant therapies.
Purpose of the Study:
- To evaluate the potential of intravenous ketamine as a novel therapeutic option for severe depression.
- To advocate for the initiation of clinical ketamine treatment in Norway based on emerging evidence.
Main Methods:
- Review of randomized controlled trials investigating the efficacy of intravenous ketamine.
- Assessment of existing data on ketamine's rapid antidepressant effects.
Main Results:
- Randomized trials demonstrate a swift onset of antidepressant action with intravenous ketamine.
- Evidence suggests ketamine is a promising alternative for treatment-resistant depression.
Conclusions:
- Intravenous ketamine shows significant promise as a rapid-acting treatment for serious depression.
- While further research on adverse effects and long-term efficacy is needed, clinical implementation in Norway is warranted.
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