Zoloft vs. Remeron

See how Zoloft and Remeron compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Zoloft is an SSRI approved for six conditions including depression, OCD, panic disorder, and PTSD, while Remeron is only FDA-approved for major depressive disorder in adults.

  • Remeron is more sedating and is usually taken at bedtime, while Zoloft is typically non-sedating and taken in the morning.

  • Both carry a boxed warning for increased suicidal thoughts in children, adolescents, and young adults, so any switch between them should be guided by a doctor.

Zoloft vs. Remeron Drug Summary

Zoloft

Zoloft (sertraline) is a selective serotonin reuptake inhibitor (SSRI) approved for major depressive disorder along with several anxiety-related conditions, including OCD, panic disorder, PTSD, social anxiety disorder, and PMDD. It increases serotonin activity in the brain and is taken as a once-daily tablet, usually in the morning.

Remeron

Remeron (mirtazapine) is a tetracyclic antidepressant approved for major depressive disorder in adults. It boosts norepinephrine and serotonin activity and is taken as a once-daily tablet, typically at bedtime because of its sedating effect.

Zoloft vs. Remeron Side Effects

Zoloft

Most common
Nausea (up to 26%)
Insomnia (up to 20%)
Diarrhea (up to 20%)
Dry mouth (up to 14%)

Remeron

Most common
Somnolence (up to 54%)
Dry mouth (up to 25%)
Increased appetite (up to 17%)
Constipation (up to 13%)

Zoloft vs. Remeron Dosage

Zoloft

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 25 to 50 mg once daily At the start
Maximum dose Up to 200 mg once daily If needed
Dose changes 2 increases As tolerated

Remeron

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 15 mg once daily At the start
Maximum dose 15 mg once daily Same as starting
Dose changes None Fixed dose

Zoloft vs. Remeron Indications

Zoloft

Zoloft is FDA-approved for major depressive disorder and five additional conditions, giving prescribers more approved options than most SSRIs. Its label covers both mood disorders and several anxiety-spectrum conditions.

  • Major depressive disorder (MDD)

  • Obsessive-compulsive disorder (OCD)

  • Panic disorder

  • Post-traumatic stress disorder (PTSD)

  • Social anxiety disorder and PMDD

Remeron

Remeron's FDA approval covers only major depressive disorder in adults. Off-label use for insomnia, anxiety, or appetite stimulation is common in practice but is not an FDA-approved use, so patients should discuss these uses with their prescriber.

  • Major depressive disorder (MDD) in adults

  • Not approved for pediatric depression

  • Off-label: insomnia

  • Off-label: anxiety disorders

  • Off-label: appetite/weight stimulation

Zoloft vs. Remeron Pros and Cons

Zoloft

Zoloft's broad FDA approval across mood and anxiety disorders makes it a common first-line choice, and its non-sedating profile suits patients who prefer taking it in the morning. Sexual side effects and early GI upset are the main tradeoffs patients report.

Pros

  • Approved for six conditions, not just depression

  • Non-sedating, typically taken in the morning

  • Less likely to cause weight gain than Remeron

  • Widely used first-line SSRI with decades of data

Cons

  • Sexual side effects common, up to 14% in men

  • Early nausea and diarrhea are common at start

  • Can cause insomnia instead of helping with sleep

  • Requires weekly dose changes to reach target dose

Remeron

Remeron's sedating profile and appetite-stimulating effect make it a useful option for depression paired with insomnia or poor appetite, and sexual side effects are less common than with SSRIs. Its narrower FDA approval and need for blood monitoring are the main tradeoffs.

Pros

  • Sedating effect can help sleep and mood together

  • Lower rates of sexual side effects than SSRIs

  • Can stimulate appetite in patients with poor intake

  • Simple three-step dosing schedule

Cons

  • Approved only for major depressive disorder

  • Significant weight gain and appetite increase common

  • Requires monitoring for rare but serious neutropenia

  • More sedating, can be harder to take during the day

Common Symptoms and Related Diseases You Can Explore

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