Celexa vs. Escitalopram
See how Celexa and Escitalopram compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Both Celexa and escitalopram are SSRIs for major depressive disorder, but escitalopram also has FDA approval for generalized anxiety disorder and for adolescents ages 12 to 17.
Celexa's label carries a warning about dose-dependent QT prolongation and caps dosing at 40 mg, while escitalopram has no such cardiac warning and tops out at 20 mg.
Escitalopram tends to show somewhat lower rates of nausea, dry mouth, and somnolence in trials, and its typical list price is generally lower than Celexa's.
Celexa vs. Escitalopram Drug Summary
Celexa
Celexa (citalopram) is a selective serotonin reuptake inhibitor (SSRI) approved for major depressive disorder in adults. It's taken once daily as a tablet or oral solution, usually starting at 20 mg for one week before moving to a 40 mg maintenance dose. It's also commonly prescribed off-label for anxiety disorders and OCD.
Escitalopram
Escitalopram is an SSRI approved for major depressive disorder in adults and adolescents 12 to 17, as well as generalized anxiety disorder in adults. It's taken once daily as a tablet or oral solution, usually starting at 10 mg for one week before moving to a 20 mg maintenance dose.
Celexa vs. Escitalopram Side Effects
Celexa
Escitalopram
Celexa vs. Escitalopram Dosage
Celexa
Escitalopram
| 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 |
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | Week 1 |
| Maximum dose | 20 mg once daily | Week 2 onward |
| Dose changes | 1 increase | Every week |
Celexa
| 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 |
Escitalopram
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | Week 1 |
| Maximum dose | 20 mg once daily | Week 2 onward |
| Dose changes | 1 increase | Every week |
Celexa vs. Escitalopram Indications
Celexa
Celexa is FDA-approved only for major depressive disorder in adults, but clinicians commonly prescribe it off-label for several anxiety-related conditions. Its long history on the market has generated substantial real-world experience supporting these off-label uses.
Major depressive disorder (MDD) in adults
Generalized anxiety disorder (off-label)
Panic disorder (off-label)
Escitalopram
Escitalopram carries FDA approval for major depressive disorder in both adults and adolescents ages 12 to 17, plus generalized anxiety disorder in adults. This broader approved label means fewer conditions require off-label prescribing compared with citalopram.
Major depressive disorder (MDD) in adults
Major depressive disorder in adolescents 12-17
Generalized anxiety disorder (GAD) in adults
Celexa vs. Escitalopram Pros and Cons
Celexa
Celexa has decades of clinical use and a well-documented safety profile, but its labeling carries a dose-dependent QT prolongation warning that limits dosing above 40 mg. It's not FDA-approved for anxiety disorders, though it's widely used off-label for that purpose, and it isn't approved for any pediatric age group.
Pros
Higher maximum approved dose (40 mg) allows more room to escalate if 20 mg isn't enough
Long-established safety and tolerability record since 1998 as one of the most prescribed SSRIs
Extensive real-world off-label use for generalized anxiety disorder, panic disorder, and OCD
Cons
Carries a warning for dose-dependent QT prolongation; doses above 40 mg/day aren't recommended
Not FDA-approved for anxiety disorders; GAD, panic disorder, and OCD use is off-label only
Not approved for any pediatric use, unlike escitalopram's approval for adolescents 12-17
Higher reported rates of nausea (21%), dry mouth (20%), and somnolence (18%) in trials
Escitalopram
Escitalopram, the active enantiomer of citalopram, has a broader FDA-approved label covering GAD in adults and MDD in adolescents. Its trial data show somewhat lower rates of nausea, dry mouth, and somnolence, though its maximum approved dose is lower at 20 mg.
Pros
FDA-approved for generalized anxiety disorder, not just used off-label like citalopram
Approved for adolescents aged 12-17 with major depressive disorder
Lower rates of common side effects in trials, including nausea (up to 15%) and insomnia (up to 9%)
Cons
Maximum approved dose is 20 mg, offering less room to escalate than citalopram's 40 mg ceiling
Not approved for panic disorder or OCD, with less off-label track record for these than citalopram
Slightly higher reported rate of sexual side effects, including ejaculation disorder (up to 9%)
Fewer decades on the market means somewhat less accumulated real-world data than citalopram
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