Switch medication from vortioxetine to paroxetine. 
- Day 1: reduce dosage of vortioxetine to 5 mg/day.
- Day 8: stop administration of vortioxetine.
- Day 8-14: a wash-out period of 1 week is necessary.
- Day 15: start administration of paroxetine in a normal dosage of 10-20 mg/day.  
- Occurrence of the serotonin syndrome is not likely, but theoretically possible, so caution is necessary.
- Paroxetine is a strong inhibitor of CYP2D6, which metabolizes vortioxetine.
- ↑ Switches are based on literature references on this page and expert opinions of the authors. The authors have used pharmacokinetic and receptor affinity properties to determine the switch schedules
- ↑ Stahl, S. M. (2013). Stahl's essential psychopharmacology: Neuroscientific basis and practical applications (4th ed.). Cambridge University Press.
- ↑ Katona et al. New generation multi-modal antidepressants: focus on vortioxetine for major depressive disorder. 2014 2014 Feb 19;10:349-54
- ↑ KNMP; Informatorium Medicamentorum 2015; Monografie "vortioxetine" (Dutch)
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