Celexa vs. Trintellix
See how Celexa and Trintellix compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Celexa (citalopram) is a generic SSRI and Trintellix (vortioxetine) is a newer brand-only serotonin modulator, and both are FDA-approved for major depressive disorder in adults.
Celexa carries a dose-dependent QT prolongation risk that caps its dose, while Trintellix carries its own risks of mania activation, glaucoma, and hyponatremia.
Celexa typically costs far less per month than Trintellix, which has no generic version available.
Celexa vs. Trintellix Drug Summary
Celexa
Celexa (citalopram) is an SSRI antidepressant approved to treat major depressive disorder in adults. It's taken once daily as a tablet or oral solution, usually starting at 20 mg and increasing after the first week. It's also commonly used off-label for anxiety-related conditions.
Trintellix
Trintellix (vortioxetine) is a serotonin modulator, a newer antidepressant class distinct from SSRIs. It's taken once daily as a tablet and is FDA-approved to treat major depressive disorder in adults.
Celexa vs. Trintellix Side Effects
Celexa
Trintellix
Celexa vs. Trintellix Dosage
Celexa
Trintellix
| STAGE | DOSE | WHEN |
| Starting dose | 20 mg once daily | Week 1 |
| Maximum dose | 40 mg once daily | Week 2 onward |
| Dose changes | 1 increase | Every week |
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | At the start |
| Maximum dose | 5 mg once daily | If needed |
| Dose changes | 2 increases | As tolerated |
Celexa
| STAGE | DOSE | WHEN |
| Starting dose | 20 mg once daily | Week 1 |
| Maximum dose | 40 mg once daily | Week 2 onward |
| Dose changes | 1 increase | Every week |
Trintellix
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | At the start |
| Maximum dose | 5 mg once daily | If needed |
| Dose changes | 2 increases | As tolerated |
Celexa vs. Trintellix Indications
Celexa
Celexa is FDA-approved to treat major depressive disorder in adults and is also commonly prescribed off-label for anxiety-related conditions. It's taken once daily as a tablet or oral solution, with the dose typically increased after the first week.
FDA-approved for major depressive disorder
Off-label for generalized anxiety disorder
Off-label for panic disorder
Off-label for obsessive-compulsive disorder (OCD)
Trintellix
Trintellix is FDA-approved to treat major depressive disorder in adults, taken once daily as a tablet. Its mechanism as a serotonin modulator sets it apart from SSRIs like Celexa, though it's currently approved for depression only.
FDA-approved for major depressive disorder
Not approved for use in children or adolescents
Available only as an oral tablet
No generic version currently available
Celexa vs. Trintellix Pros and Cons
Celexa
Citalopram is a well-established SSRI with decades of clinical use and predictable once-daily dosing. Its main clinical drawback is a dose-dependent QT prolongation risk that limits how high the dose can go, especially in older adults.
Pros
Available as a low-cost generic, often $15 to $300 per month
Long track record of use since FDA approval in 1998
Also used off-label for anxiety, panic disorder, and OCD
Available in oral solution for those who can't swallow pills
Cons
Dose-dependent QT prolongation risk limits dosing to 40 mg/day
Max dose drops to 20 mg/day in older adults or with liver issues
Common side effects include sedation and dry mouth
Trintellix
Vortioxetine works through a different serotonin-modulating mechanism than SSRIs, which may help patients who haven't responded well to traditional options. It's linked to fewer sexual side effects and less weight gain, but as a brand-only drug it costs substantially more each month.
Pros
Different serotonin-modulating mechanism than SSRIs
Linked to lower rates of sexual dysfunction and weight gain
No QT-prolongation warning on its label
Simple three-step titration schedule
Cons
No generic version, typically $465 to $650 per month
Carries risks of mania activation, glaucoma, and hyponatremia
Nausea rates can climb as high as 32% at higher doses
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