Selective Serotonin Reuptake Inhibitors and Tricyclic Antidepressants in Combination

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Abstract
Background: The selective serotonin reuptake inhibitors (SSRIs) are now widely used in the treatment of depressive illness. Interest has grown in the use of SSRIs as alternatives to tricyclic antidepressants (TCAs) and in the therapeutic use of combinations of SSRIs and TCAs in refractory depression.Method: MEDLINE and PSYCLit literature searches were conducted. Reference sections from papers retrieved were scrutinised for other relevant reports.Results: Of 41 relevant articles identified, 35 were selected for review.Conclusions: Fluoxetine, fluvoxamine, paroxetine and sertraline may substantially increase TCA plasma levels when given concurrently. Such interactions may give rise to adverse effects. The effect of sertraline may be less profound than that of fluoxetine, fluvoxamine and paroxetine. Limited data suggest that citalopram may not affect TCA serum levels. There is scant literature evidence to support the use of SSRIs in combination with TCAs as a treatment for refractory depression.