Trintellix vs Lexapro
How vortioxetine and escitalopram compare, a newer antidepressant and a standard SSRI.
How they're similar
Vortioxetine and escitalopram are both antidepressants that work through serotonin, a chemical messenger in the brain. They share several features.
- Both treat major depressive disorder, the clinical term for depression.
- Both act on serotonin to lift mood, though the way they do it differs.
- Both follow a similar timeline. Early side effects can show in the first week or two, while the fuller effect on mood usually takes four to six weeks.
- Both are taken once daily.
- Both carry the antidepressant boxed warning about a possible increase in suicidal thoughts in people under 25, especially early in treatment.
How they differ
The two drugs differ in how they work, in side effect tendencies, and in cost and track record. The table below sums up the core points, with more detail underneath.
| Vortioxetine (Trintellix) | Escitalopram (Lexapro) | |
|---|---|---|
| Drug class | Newer multimodal antidepressant | SSRI |
| How it works | Slows serotonin reuptake and also acts directly on several serotonin receptors | Slows the reuptake of serotonin |
| Sexual side effects | Lower rate than standard SSRIs | More common, typical of SSRIs |
| Most common side effect | Nausea, often more noticeable early on | Nausea and other stomach effects, often milder early on |
| Cost | Newer, and although a generic is now available it can still cost more | Long-established, inexpensive generic |
The clearest difference is how they work. Escitalopram is a straightforward SSRI, a selective serotonin reuptake inhibitor, which means it slows the reuptake of serotonin so more of it stays available between nerve cells. Vortioxetine works on serotonin in a more complex way. It slows reuptake and also acts directly on several serotonin receptors. That is why it is described as multimodal.
Sexual side effects are a common reason vortioxetine is chosen. It has a lower rate of sexual side effects than standard SSRIs like escitalopram. This is a tendency, not a guarantee, but it is a real and well-documented difference.
The most common side effect differs too. Vortioxetine's most common side effect is nausea, and it is often more noticeable early on than with escitalopram. For many people the nausea eases over the first weeks.
There is a difference in heart rhythm. Escitalopram has a dose-related effect on the QT interval, a measure of heart rhythm. Because of that, its maximum dose is lower for older adults. Vortioxetine does not carry that effect.
Cost and track record differ as well. Escitalopram is a long-established, inexpensive generic with a long history of use. Vortioxetine is newer, and although a generic is now available, it can still cost more.
The two also differ in approved uses. Escitalopram is approved for major depressive disorder and generalized anxiety disorder. Vortioxetine is approved for major depressive disorder.
One more point is worth noting carefully. Some studies suggest vortioxetine may help with aspects of concentration and thinking that depression can affect. This is a possible benefit rather than a settled or strong claim, and it is best discussed with a prescriber.
Side effects compared
Both drugs can cause nausea and other stomach effects early in treatment, and with both, side effects tend to arrive before the benefit. The main difference is in degree and pattern.
Nausea is vortioxetine's most common side effect, and it is often more noticeable early on than with escitalopram. Escitalopram tends to be a little gentler on the stomach for many people. With both, if a side effect is severe, or it is not improving after a few weeks, that is a conversation to have with a prescriber rather than a reason to stop on your own.
Sleep, weight, and sexual effects
The clearest difference in this area is sexual side effects. Vortioxetine has a lower rate of sexual side effects than standard SSRIs like escitalopram. Sexual side effects with escitalopram are common, typical of SSRIs, and can include lower sex drive, delayed orgasm, and arousal difficulties. They tend to last as long as the medication is taken rather than fading like nausea does.
For sleep and weight, both are broadly similar and both can affect sleep in some people. Any of these effects is worth raising with a prescriber, because there are real options, including a dose change or a switch.
Why a clinician might choose one over the other
The choice often comes down to specifics.
A clinician might choose escitalopram as a well-established, inexpensive, and well-tolerated first choice. It is an especially reasonable choice when anxiety is also present, given its approval for generalized anxiety disorder.
A clinician might choose vortioxetine when avoiding sexual side effects matters, or for its possible benefit on concentration. Choosing it means accepting more nausea early and possibly a higher cost. Beyond the medication itself, prior response, other medications, and other health conditions all factor into the decision.
The bottom line
Escitalopram is the established, economical first choice. Vortioxetine is a newer option with a lower rate of sexual side effects and a possible benefit for concentration. Neither is clearly better for everyone. The choice is individualized and made with a prescriber.
Sources
This guide draws on current prescribing information and public health references. It is reviewed for clinical accuracy and updated as guidance changes.
- U.S. Food and Drug Administration. Vortioxetine prescribing information.
- U.S. Food and Drug Administration. Escitalopram prescribing information.
- MedlinePlus, U.S. National Library of Medicine.
- National Institute of Mental Health. Mental health medications.
Managing a medication needs a prescriber
Any psychiatric medication has to be started and adjusted by a clinician who can follow you over time. If you don't have a prescriber, our guides section explains the options, including in-person care and telepsychiatry, and how to choose between them.
This guide is for general education. It is not medical advice and is not a substitute for evaluation, diagnosis, or treatment by a qualified clinician. Never start, stop, or change a medication without talking to your prescriber. If you are in crisis or thinking about harming yourself, call or text 988 in the U.S. to reach the Suicide and Crisis Lifeline.