Prozac vs. Trintellix
See how Prozac and Trintellix compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Prozac is an SSRI approved for depression, OCD, bulimia, and panic disorder, while Trintellix is a newer serotonin modulator approved only for major depressive disorder.
Both carry boxed warnings for increased suicidal thoughts in children and young adults and can cause nausea, though Prozac is more likely to cause insomnia and anxiety.
Prozac is available as a low-cost generic, while Trintellix remains brand-only and typically costs several times more per month.
Prozac vs. Trintellix Drug Summary
Prozac
Prozac (fluoxetine) is a selective serotonin reuptake inhibitor (SSRI) approved for major depressive disorder, OCD, bulimia nervosa, panic disorder, and treatment-resistant depression when combined with olanzapine. It comes as a capsule, delayed-release weekly capsule, tablet, or oral solution, typically taken once daily.
Trintellix
Trintellix (vortioxetine) is a serotonin modulator and stimulator, a newer class of antidepressant distinct from SSRIs, approved only for major depressive disorder in adults. It is taken as a single tablet once daily, usually starting at 10 mg and increasing to 20 mg as tolerated.
Prozac vs. Trintellix Side Effects
Prozac
Trintellix
Prozac vs. Trintellix Dosage
Prozac
Trintellix
| STAGE | DOSE | WHEN |
| Starting dose | 20 mg once daily | At the start |
| Maximum dose | 90 mg once weekly | If needed |
| Dose changes | 2 increases | As tolerated |
| 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 |
Prozac
| STAGE | DOSE | WHEN |
| Starting dose | 20 mg once daily | At the start |
| Maximum dose | 90 mg once weekly | If needed |
| Dose changes | 2 increases | As tolerated |
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 |
Prozac vs. Trintellix Indications
Prozac
Prozac carries FDA approval for a wider range of conditions than most SSRIs, including OCD, bulimia, and panic disorder. It's also combined with olanzapine for bipolar depression and treatment-resistant depression. Off-label, it's sometimes used for PMDD, binge eating disorder, and social anxiety.
Major depressive disorder (MDD)
Obsessive-compulsive disorder (OCD)
Bulimia nervosa
Trintellix
Trintellix is FDA-approved only for major depressive disorder in adults, a narrower label than Prozac's. Its distinct mechanism as a serotonin modulator and stimulator makes it an option for patients who haven't responded well to SSRIs. It is not approved for children, adolescents, or other psychiatric conditions.
Major depressive disorder (MDD) in adults
Approved for adults only, not children or adolescents
Single indication, unlike broader-label SSRIs
Prozac vs. Trintellix Pros and Cons
Prozac
Prozac has decades of clinical use and is approved for several conditions beyond depression, including OCD and panic disorder. As a generic, it's usually the more affordable option, though its side-effect profile includes more sexual dysfunction and activation symptoms than newer agents.
Pros
Approved for OCD, bulimia, and panic disorder, not just depression
Available as a low-cost generic, roughly $10 to $70 per month, versus Trintellix's $465 to $650
Once-weekly dosing option after initial daily titration
Cons
Insomnia and anxiety/nervousness are common and can be prominent
Sexual dysfunction and weight changes are more common than with Trintellix
Contraindicated with MAOIs, pimozide, and thioridazine
Trintellix
Trintellix's distinct mechanism may benefit patients who haven't done well on SSRIs, with generally milder sexual and weight-related side effects. It remains brand-only and carries a significantly higher monthly cost, with a narrower approval limited to major depressive disorder.
Pros
Associated with lower rates of sexual dysfunction and weight gain
Different mechanism may help those who haven't responded to SSRIs
Simpler once-daily dosing with fewer distinct titration steps
Cons
No generic available, typically $465 to $650 per month versus Prozac's $10 to $70 generic
Approved only for MDD, a narrower indication than Prozac
Carries added risks of angle-closure glaucoma and hyponatremia
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