Psychiatr. praxi 2019; 20(2): 69-76

Drug-drug interactions of frequently prescribed antidepressants

MUDr. Michal Prokeš, PharmDr. Josef Suchopár
DrugAgency, a. s., Praha

This article describes drug-drug interactions of antidepressants. Potentially fatal pharmacodynamic interactions include serotonin syndrome, whose diagnosis is difficult. QT prolongation is a marker of increased risk of ventricular tachycardia. Administration of SSRIs and NSAs increases the risk of bleeding, especially from GIT. From pharmacodynamic interactions, the article highligts interactions via CYP2D6. Many antidepressants and antipsychotics are CYP2D6 substrates, with paroxetine, fluoxetine and fluvoxamine being CYP2D6 inhibitors. Some of the interactions are contraindicated, in other cases doctor should consider pros and cons, and patients should be carefully monitored.

Keywords: antidepressants, CYP2D6, serotonin syndrome, QT interval prolongation

Published: June 1, 2019  Show citation

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Prokeš M, Suchopár J. Drug-drug interactions of frequently prescribed antidepressants. Psychiatr. praxi. 2019;20(2):69-76.
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