Celexa vs. Sertraline

See how Celexa and Sertraline compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Celexa reaches its full dose in one titration step, while sertraline usually needs up to three dose increases to reach 200 mg.

  • Sertraline is FDA-approved for six conditions, including OCD, PTSD, and PMDD, while Celexa is FDA-approved only for major depressive disorder.

  • Celexa carries a dose-dependent QT prolongation warning that caps its maximum dose, a limit sertraline's label does not have.

Celexa vs. Sertraline Drug Summary

Celexa

Celexa (citalopram) is a selective serotonin reuptake inhibitor (SSRI) FDA-approved to treat major depressive disorder in adults. It is taken once daily as a tablet or oral solution, starting at 20 mg and moving to a 40 mg maintenance dose after one week.

Sertraline

Sertraline is a selective serotonin reuptake inhibitor (SSRI) FDA-approved for major depressive disorder, OCD, panic disorder, PTSD, social anxiety disorder, and PMDD. It is taken once daily, starting at 50 mg and increasing in steps up to a 200 mg maximum.

Celexa vs. Sertraline Side Effects

Celexa

Most common
nausea (up to 21%)
insomnia (up to 15%)
dry mouth (up to 20%)
somnolence (up to 18%)

Sertraline

Most common
nausea (up to 26%)
insomnia (up to 21%)
diarrhea (up to 20%)
ejaculation failure (up to 14%)

Celexa vs. Sertraline Dosage

Celexa

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 20 mg once daily Week 1
Maximum dose 40 mg once daily Week 2 onward
Dose changes 1 increase Every week

Sertraline

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 50 mg once daily At the start
Maximum dose 200 mg once daily If needed
Dose changes 3 increases As tolerated

Celexa vs. Sertraline Indications

Celexa

Celexa is FDA-approved only for major depressive disorder in adults. Doctors sometimes prescribe it off-label for anxiety-related conditions, though the FDA has not reviewed it for these uses.

  • Major depressive disorder (FDA-approved)

  • Generalized anxiety disorder (off-label)

  • Panic disorder (off-label)

  • Obsessive-compulsive disorder (off-label)

Sertraline

Sertraline carries FDA approval for six separate conditions, giving doctors more on-label options beyond depression. It is also the only SSRI in this comparison approved for pediatric OCD in children age 6 and older.

  • Major depressive disorder (FDA-approved)

  • Obsessive-compulsive disorder (FDA-approved)

  • Panic disorder (FDA-approved)

  • Post-traumatic stress disorder (FDA-approved)

Celexa vs. Sertraline Pros and Cons

Celexa

Celexa's simple one-step titration reaches an effective dose in about a week, backed by decades of real-world use. Its main tradeoff is a dose-dependent QT prolongation risk, which caps the dose at 40 mg and limits it further for some patients.

Pros

  • Reaches its full maintenance dose in one titration step, typically within a week

  • One of the most widely prescribed SSRIs, with a well-established long-term safety record

  • Effective at a much lower milligram dose than sertraline (40 mg max vs. 200 mg)

Cons

  • FDA-approved only for depression, so anxiety, OCD, and PTSD uses are off-label

  • Carries a dose-dependent QT prolongation warning that caps the dose at 40 mg/day

  • Capped further at 20 mg/day for people over 60, with liver problems, or certain metabolizer types

Sertraline

Sertraline's broad label lets prescribers use it on-label for depression, OCD, panic disorder, PTSD, social anxiety, and PMDD. Reaching an effective dose usually means several step-by-step increases from 50 mg up to a 200 mg maximum over weeks.

Pros

  • FDA-approved for six conditions, including OCD, PTSD, panic disorder, and PMDD

  • Only SSRI here approved for pediatric OCD in children age 6 and older

  • No dose-dependent QT prolongation warning capping its maximum dose

Cons

  • Titration takes multiple weekly step-ups to reach an effective dose

  • Sexual side effects such as ejaculation failure are explicitly listed on the label

  • Diarrhea affects up to 20% of patients

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