Quinidine and Vortioxetine interaction
Quinidine and Vortioxetine: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Vortioxetine (Trintellix) label · effective 2026-02-17
Examples bupropion, fluoxetine, paroxetine, quinidine Strong CYP Inducers Clinical Impact Concomitant use of TRINTELLIX with a strong CYP inducer decreases plasma concentrations of vortioxetine.
• Strong inhibitors of CYP2D6: Reduce TRINTELLIX dose by half when coadministered ( 2.5 , 7.1 ).
John's Wort Strong Inhibitors of CYP2D6 Clinical Impact Concomitant use of TRINTELLIX with strong CYP2D6 inhibitors increases plasma concentrations of vortioxetine.
Intervention Reduce TRINTELLIX dose by half when a strong CYP2D6 inhibitor is coadministered [see Dosage and Administration (2.5) ] .
From the Quinidine (Quinidine Gluconate) label · effective 2024-08-27
Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants .
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.