Zoloft vs. Pristiq

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

Key Takeaways

  • Zoloft is an SSRI approved for six conditions including depression, OCD, panic disorder, PTSD, social anxiety disorder, and PMDD, while Pristiq is an SNRI approved only for major depressive disorder in adults.

  • Zoloft is usually titrated from a starting dose up to a maximum of 200 mg a day, while Pristiq is typically taken at a fixed 50 mg dose with no titration needed for most patients.

  • Nausea is the most common side effect for both drugs, but it's reported more often with Pristiq (up to 41%) than with Zoloft (up to 26%).

Zoloft vs. Pristiq Drug Summary

Zoloft

Zoloft (sertraline) is an SSRI approved for major depressive disorder, OCD, panic disorder, PTSD, social anxiety disorder, and PMDD. It's taken once daily as a tablet or oral solution, usually starting at 25-50 mg and adjusted based on response and tolerability.

Pristiq

Pristiq (desvenlafaxine) is an SNRI approved only for major depressive disorder in adults. It's taken as a once-daily extended-release tablet, and the 50 mg starting dose is usually also the therapeutic dose, since higher doses haven't shown added benefit.

Zoloft vs. Pristiq Side Effects

Zoloft

Most common
nausea (up to 26%)
dry mouth (up to 14%)
diarrhea (up to 20%)
insomnia (up to 20%)

Pristiq

Most common
nausea (up to 41%)
dry mouth (up to 25%)
dizziness (up to 16%)
constipation (up to 14%)

Zoloft vs. Pristiq Dosage

Zoloft

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 50 mg once daily Week 1
Maximum dose 50-200 mg once daily If needed
Dose changes 2 increases As tolerated

Pristiq

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 50 mg once daily Day 1
Maximum dose 50 mg once daily Same as starting
Dose changes None Fixed dose

Zoloft vs. Pristiq Indications

Zoloft

Zoloft is FDA-approved to treat major depressive disorder, obsessive-compulsive disorder, panic disorder, PTSD, social anxiety disorder, and premenstrual dysphoric disorder. It's approved for adults across all of these, and for OCD in children and adolescents ages 6 to 17.

  • Major depressive disorder (MDD)

  • Obsessive-compulsive disorder, incl. ages 6-17

  • Panic disorder and PTSD

Pristiq

Pristiq is FDA-approved for major depressive disorder in adults. It's not approved for pediatric patients, and the dose needs to be adjusted for people with severe kidney disease.

  • Major depressive disorder (MDD) in adults

  • Not approved for pediatric patients

  • Dose adjustment needed in severe renal impairment

Zoloft vs. Pristiq Pros and Cons

Zoloft

Zoloft has one of the broadest FDA-approved indication lists among antidepressants, covering six separate conditions. It has been on the market since 1991, giving prescribers decades of real-world experience with its safety profile.

Pros

  • Approved for six conditions, not just depression

  • Decades of clinical use since 1991 approval

  • Also approved for OCD in children ages 6-17

Cons

  • Often needs weeks of dose adjustments to find the right level

  • Higher reported rates of insomnia and diarrhea in trials

  • Ejaculation failure reported in up to 14% of men

Pristiq

Pristiq's dual action on serotonin and norepinephrine can be an option for patients who haven't responded well to an SSRI alone. Its FDA approval is limited to major depressive disorder, and the 50 mg dose is fixed for most patients from day one.

Pros

  • No titration needed for most patients

  • Dual serotonin-norepinephrine mechanism differs from SSRIs

  • Simple once-daily fixed dose start to finish

Cons

  • FDA-approved only for depression, a narrower label than Zoloft

  • Higher reported nausea and dry mouth rates than Zoloft

  • No pediatric approval for any condition

Common Symptoms and Related Diseases You Can Explore

Explore a range of common symptoms the Doctronic Symptom Checker can help you understand.