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A prospective naturalistic study of antidepressant-induced jitteriness/anxiety syndrome
Authors Harada T, Inada K, Yamada K, Sakamoto K, Ishigooka J
Received 4 July 2014
Accepted for publication 29 August 2014
Published 10 November 2014 Volume 2014:10 Pages 2115—2121
DOI https://doi.org/10.2147/NDT.S70637
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 4
Editor who approved publication: Dr Roger Pinder
Video abstract presented by Dr Tsuyoto Harada
Views: 1520
Tsuyoto Harada, Ken Inada, Kazuo Yamada, Kaoru Sakamoto, Jun Ishigooka
Department of Psychiatry, Tokyo Women’s Medical University School of Medicine, Tokyo, Japan
Objective: Patients often develop neuropsychiatric symptoms such as anxiety and agitation after they have started taking an antidepressant, and this is thought to be associated with a potentially increased risk of suicide. However, the incidence of antidepressant-induced jitteriness/anxiety syndrome has not been fully investigated, and little has been reported on its predictors. The aim of this study was to survey the incidence of antidepressant-induced jitteriness/anxiety syndrome and clarify its predictors in a natural clinical setting.
Materials and methods: Between January 2009 and July 2012, we prospectively surveyed 301 patients who had not taken any antidepressants for 1 month before presentation, and who were prescribed antidepressants for 1 month after their initial visit. Patients were classified as developing antidepressant-induced jitteriness/anxiety syndrome if they experienced any symptoms of anxiety, agitation, panic attacks, insomnia, irritability, hostility, aggressiveness, impulsivity, akathisia, hypomania, or mania during the first month.
Results: Among the 301 patients, 21 (7.0%) developed antidepressant-induced jitteriness/anxiety syndrome. Major depressive disorder and a diagnosis of mood disorder in first-degree relatives of patients were significantly associated with induction of antidepressant-induced jitteriness/anxiety syndrome (odds ratio 10.2, P=0.001; odds ratio 4.65, P=0.02; respectively). However, there was no such relationship for sex, age, class of antidepressant, combined use of benzodiazepines, or diagnosis of anxiety disorder.
Conclusion: The findings of this study suggest that major depressive disorder and a diagnosis of mood disorder in first-degree relatives may be clinical predictors of antidepressant-induced jitteriness/anxiety syndrome.
Keywords: side effects, antidepressants, selective serotonin-reuptake inhibitors, tricyclic antidepressive agents, suicide
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