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Mood switch in bipolar depression: comparison of adjunctive venlafaxine, bupropion and sertraline.

Author(s): Post RM, Altshuler LL, Leverich GS, Frye MA, Nolen WA, Kupka RW, Suppes T, McElroy S, Keck PE, Denicoff KD, Grunze H, Walden J, Kitchen CM, Mintz J

Affiliation(s): Department of Health and Human Services, National Institute of Mental Health, Bethesda, Maryland, USA. postr@mail.nih.gov

Publication date & source: 2006-08, Br J Psychiatry., 189:124-31.

BACKGROUND: Few studies have examined the relative risks of switching into hypomania or mania associated with second-generation antidepressant drugs in bipolar depression. AIMS: To examine the relative acute effects of bupropion, sertraline and venlafaxine as adjuncts to mood stabilisers. METHOD: In a 10-week trial, participants receiving out-patient treatment for bipolar disorder (stratified for rapid cycling) were randomly treated with a flexible dose of one of the antidepressants, or their respective matching placebos, as adjuncts to mood stabilisers. RESULTS: A total of 174 adults with bipolar disorder I, II or not otherwise specified, currently in the depressed phase, were included. All three antidepressants were associated with a similar range of acute response (49-53%) and remission (34-41%). There was a significantly increased risk of switches into hypomania or mania in participants treated with venlafaxine compared with bupropion or sertraline. CONCLUSIONS: More caution appears indicated in the use of venlafaxine rather than bupropion or sertraline in the adjunctive treatment of bipolar depression, especially if there is a prior history of rapid cycling.

Page last updated: 2006-11-04

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