In vitro effects of serotonin and noradrenaline reuptake inhibitors on human platelet adhesion and coagulation.
Journal Title: Pharmacological Reports - Year 2012, Vol 64, Issue 4
Abstract
Background: Although several studies show that there is an increased risk of bleeding events during antidepressant treatment with selective serotonin reuptake inhibitors (SSRIs), few studies show direct effects in vitro of SSRIs on hemostasis. Methods: This study was undertaken to investigate the effects on platelet adhesion and plasma coagulation (APTT and PT) of two common SSRIs, citalopram and sertraline, the selective noradrenaline reuptake inhibitor reboxetine, and the serotonin and noradrenaline reuptake inhibitor venlafaxine. Results: None of the compounds affected plasma coagulation significantly but all compounds except for venlafaxine inhibited platelet adhesion by approximately 50% or more at the highest concentration (100 μg/l, p < 0.01). The potency of respective compound to inhibit platelet adhesion to both collagen and fibrinogen surfaces was in the following order; citalopram > sertraline > reboxetine. In contrast, venlafaxine caused a weak but statistically significant increased platelet adhesion to fibrinogen. Conclusion: This study showed that sertraline, citalopram and reboxetine direct and acutely decrease platelet adhesion to both collagen and fibrinogen in vitro. These results also indicate that increased risk for bleeding complications in antidepressant users may not only be explained by depletion of serotonin in platelets.
Authors and Affiliations
Ida Hallbäck, Staffan Hägg, Andreas Eriksson, Per Whiss
Keywords
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