Trintellix vs. Viibryd
See how Trintellix and Viibryd compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Both Trintellix and Viibryd treat major depressive disorder in adults and carry the same boxed warning about suicidal thoughts in younger patients.
Trintellix has a simpler once-daily routine with no food requirement, while Viibryd must be taken with food to absorb properly.
Viibryd's most common side effect is diarrhea, while Trintellix's is dose-related nausea, so the day-to-day tolerability profile differs.
Trintellix vs. Viibryd Drug Summary
Trintellix
Trintellix (vortioxetine) is a serotonin modulator and stimulator (SMS) used to treat major depressive disorder in adults. It's taken as a single oral tablet once a day, usually starting at 10 mg and increasing to 20 mg as tolerated.
Viibryd
Viibryd (vilazodone) is a serotonin partial agonist and reuptake inhibitor (SPARI) approved for major depressive disorder in adults. It's taken as one oral tablet daily with food, titrating from 10 mg up to a 40 mg maintenance dose over two weeks.
Trintellix vs. Viibryd Side Effects
Trintellix
Viibryd
Trintellix vs. Viibryd Dosage
Trintellix
Viibryd
| 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 |
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | Days 1-7 |
| Maximum dose | 40 mg once daily | Day 15 onward |
| Dose changes | 2 increases | Every 7 days |
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 |
Viibryd
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | Days 1-7 |
| Maximum dose | 40 mg once daily | Day 15 onward |
| Dose changes | 2 increases | Every 7 days |
Trintellix vs. Viibryd Indications
Trintellix
Trintellix is FDA-approved to treat major depressive disorder in adults. It is not approved for use in children or adolescents. As a serotonin modulator, it works differently than standard SSRIs and SNRIs.
Treats major depressive disorder (MDD) in adults
Not approved for children or adolescents
Taken once daily, with or without food
Distinct SMS mechanism, unlike standard SSRIs/SNRIs
Viibryd
Viibryd is FDA-approved to treat major depressive disorder in adults. It is not approved for pediatric depression. As a serotonin partial agonist and reuptake inhibitor, it combines two mechanisms not found in standard SSRIs.
Treats major depressive disorder (MDD) in adults
Not approved for pediatric MDD
Must be taken once daily with food
Combines reuptake inhibition with 5-HT1A agonism
Trintellix vs. Viibryd Pros and Cons
Trintellix
Trintellix's single titration step and lack of food requirement make it a straightforward option for many patients starting an antidepressant. Its distinct mechanism is linked to lower rates of sexual side effects and weight gain than many SSRIs, though it currently has no generic version.
Pros
Simpler titration, typically only one dose increase needed
No food requirement, can be taken any time of day
Lower risk of diarrhea than Viibryd's most common side effect
Cons
No generic version currently available, brand-only pricing
Nausea risk increases with dose and can be significant at 20 mg
Newer mechanism means fewer long-term outcome studies than older classes
Viibryd
Viibryd's structured two-week titration schedule gets patients to a stable maintenance dose quickly, but it must be taken with food every day for the medication to absorb properly. Diarrhea is notably more common with Viibryd than with Trintellix, which can affect tolerability early in treatment.
Pros
Defined two-week schedule reaches full maintenance dose predictably
FDA has approved a generic version, though not yet widely marketed
Long-established SPARI mechanism with over a decade of clinical use
Cons
Must be taken with food daily or absorption drops significantly
Higher rate of diarrhea than Trintellix's typical GI profile
More complex titration with two separate dose increases
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