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How fast are antidepressants?
1Department of Psychiatry, University of Arizona Health Science Center, Tucson 85724-5002, USA. alang@u.arizona.edu
The Journal of Clinical Psychiatry
|November 15, 2000
Summary
Currently, no antidepressant drug is proven faster than others. However, somatic therapies like electroconvulsive therapy may offer the quickest antidepressant response, while new neuroscience may be needed for truly faster medications.
Area of Science:
- Psychiatry
- Pharmacology
- Neuroscience
Background:
- Determining the speed of antidepressant drug onset has been a long-standing challenge for researchers.
- Claims of faster-acting antidepressants lack robust scientific confirmation.
Purpose of the Study:
- To review existing literature on the onset speed of antidepressant therapies.
- To identify factors influencing study results and explore methods for accelerating antidepressant responses.
Main Methods:
- Systematic review of studies on antidepressant onset speed.
- Compilation of factors affecting study outcomes and interpretations.
- Literature search for methods to expedite antidepressant effects.
Main Results:
- No current antidepressant medication demonstrates a conclusively faster onset than others.
- Augmentation strategies show potential for speeding treatment response.
- Somatic therapies (ECT, phototherapy, sleep deprivation) appear to be the fastest available options.
Conclusions:
- Antidepressant medications typically require several weeks for significant therapeutic benefit.
- A 20% improvement within 2-4 weeks suggests continued efficacy; otherwise, treatment adjustment is advised.
- Achieving a truly "faster antidepressant" likely necessitates advancements in neuroscience and technology.