Prozac vs. Luvox

See how Prozac and Luvox compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Prozac is approved for depression, OCD, bulimia, panic disorder, and bipolar depression, while Luvox is approved only for OCD in adults and children.

  • Luvox causes higher rates of nausea, headache, and somnolence than Prozac, while Prozac offers a once-weekly maintenance dosing option.

  • Both drugs carry a boxed warning for increased suicidal thoughts in young people and cannot be combined with MAOIs.

Prozac vs. Luvox Drug Summary

Prozac

Prozac (fluoxetine) is a selective serotonin reuptake inhibitor approved for major depressive disorder, OCD, bulimia nervosa, panic disorder, and bipolar depression combined with olanzapine. It comes as capsules, tablets, or oral solution, taken once daily, with an optional once-weekly maintenance dose.

Luvox

Luvox (fluvoxamine) is a selective serotonin reuptake inhibitor approved only for obsessive-compulsive disorder in adults and in children age 8 and older. It's taken as a tablet, usually starting once daily and increasing to twice-daily divided doses as treatment progresses over several weeks.

Prozac vs. Luvox Side Effects

Prozac

Most common
insomnia (up to 33%)
nausea (up to 21%)
anxiety/nervousness (up to 15%)
diarrhea (up to 12%)

Luvox

Most common
insomnia (up to 35%)
nausea (up to 40%)
headache (up to 35%)
somnolence (up to 27%)

Prozac vs. Luvox Dosage

Prozac

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 20 mg once daily At the start
Maximum dose 90 mg once weekly If needed
Dose changes 2 increases As tolerated

Luvox

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 25 mg once daily At the start
Maximum dose 300 mg/day If needed
Dose changes 4 increases As tolerated

Prozac vs. Luvox Indications

Prozac

Prozac holds FDA approval for a wide range of conditions, including depression, OCD, bulimia, and panic disorder. It's also approved in combination with olanzapine for bipolar depression and treatment-resistant depression. Doctors sometimes prescribe it off-label for PMDD, binge eating disorder, or social anxiety.

  • Major depressive disorder

  • Obsessive-compulsive disorder (OCD)

  • Bulimia nervosa

  • Panic disorder

  • Bipolar I depression (with olanzapine)

Luvox

Luvox's only FDA-approved use is OCD, in both adults and children as young as 8. Doctors sometimes prescribe it off-label for depression, social anxiety disorder, or panic disorder, drawing on its SSRI mechanism. It is not approved for major depressive disorder despite this off-label use.

  • OCD in adults

  • OCD in children ages 8-17

  • Major depressive disorder (off-label)

  • Social anxiety disorder (off-label)

  • Panic disorder (off-label)

Prozac vs. Luvox Pros and Cons

Prozac

Prozac's broad set of FDA approvals gives doctors flexibility to treat multiple conditions with one medication. Its long half-life means missing a dose is less likely to cause withdrawal-like symptoms, and generic versions are widely available and affordable.

Pros

  • Approved for depression, OCD, bulimia, panic, and bipolar depression

  • Long half-life lowers risk of withdrawal symptoms if a dose is missed

  • Once-weekly maintenance option available after initial daily dosing

Cons

  • Not FDA-approved for anxiety disorders as a standalone treatment

  • Can cause activating effects like anxiety, nervousness, and insomnia

  • Long half-life means interactions can linger for weeks after stopping

Luvox

Luvox's FDA approval is narrower, focused specifically on OCD, but it has strong efficacy data for that use in both adults and kids. Its CYP1A2 inhibition means it interacts significantly with caffeine and certain other medications, so dosing needs careful monitoring.

Pros

  • FDA-approved for OCD in children as young as age 8

  • Extensive OCD-specific clinical trial data supports its use

  • Only available as generic fluvoxamine, which can lower cost variability

Cons

  • Significant CYP1A2 interactions with caffeine, theophylline, and clozapine

  • Only FDA-approved for OCD, not depression or other mood disorders

  • Requires twice-daily divided dosing at higher maintenance doses

Common Symptoms and Related Diseases You Can Explore

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