Compare Celexa vs. Prozac

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Celexa
(citalopram)

Prozac
(fluoxetine)

Improves mood and helps you relax. Celexa (Citalopram) is good for treating depression and anxiety. Might be less likely to cause side effects than some antidepressants, but not the best choice for people with heart or liver problems.Improves mood and helps you relax. Prozac (Fluoxetine) is good for treating depression and anxiety. It's more energizing than other antidepressants, but may not be the best choice for people who have trouble sleeping.
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Prices and coupon for 30 (20mg) tablets of citalopram
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Prices and coupon for 30 (20mg) capsules of fluoxetine
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
4.98Celexa
Reviews for Celexa (citalopram)
61%
of people (All ages) say Celexa (citalopram) is worth it
51%
say it works well
16%
say it's a big hassle
520 reviews
Have you used Celexa (citalopram)?
Worth itNot sureNot worth it
Reviews for Prozac (fluoxetine)
62%
+1% better vs. Celexa (citalopram)
40%
-11% worse vs. Celexa (citalopram)
16%
Same vs. Celexa (citalopram)
1319 reviews
Have you used Prozac (fluoxetine)?
Worth itNot sureNot worth it
Side effects
CelexaProzac
  • Nausea 7%
  • Dry mouth 6%
  • Drowsiness 8%
  • Sleep difficulty 1%
  • Sweating increased 2%
  • Diarrhea 3%
  • Tremor 2%
  • Ejaculation disorder 5%
  • Inflammation inside the nose 1%
  • Indigestion 1%
More Celexa side effects »
  • Nausea 13%
  • Headache 2%
  • Sleep difficulty 18%
  • Nervousness 5%
  • Drowsiness 7%
  • Anxiety 6%
  • Diarrhea 4%
  • Muscle weakness 5%
  • Loss of appetite 7%
  • Dizziness 3%
More Prozac side effects »
How it works
CelexaProzac
Celexa (Citalopram) is a selective serotonin reuptake inhibitor (SSRI) antidepressant. It increases serotonin activity in the brain, which regulates mood.Prozac (Fluoxetine) is a selective serotonin reuptake inhibitor (SSRI) antidepressant. It increases serotonin activity in the brain, which regulates mood.
Type of medication
CelexaProzac
Prescription only
Prescription only
Available as
CelexaProzac
  • Pill
  • Oral solution
  • Pill
  • Delayed release capsule
  • Liquid
Used for
CelexaProzac
Risk factors for serious side effects
CelexaProzac
  • Age 24 years or younger
  • Using other medications that affect serotonin
  • History of bipolar disorder
  • At risk for bipolar disorder
  • Stopping Celexa (Citalopram) suddenly
  • Higher dose
  • History of heart problems
  • History of liver problems
  • Older age
  • Taking other blood-thinning drugs
    Detailed Celexa (citalopram) risks & warnings »
    • Age 24 years or younger
    • Using other medications that affect serotonin
    • Stopping Prozac (Fluoxetine) suddenly
    • History of heart problems
    • History of liver problems
    • Drug interactions
    • Taking other blood-thinning drugs
      • History of bipolar disorder
      • At risk for bipolar disorder
      Detailed Prozac (fluoxetine) risks & warnings »
      Pregnancy

      Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

      Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

      Food
      CelexaProzac
      • Take with food to avoid upset stomach.
      • Take in the morning with food to avoid side effects.
      Kidneys and liver
      CelexaProzac
      • Not a good option for you if you have heart or liver problems.
      No kidneys and liver related info.
      Sex
      CelexaProzac
      • Can cause sexual side effects like low libido and an inability to orgasm or ejaculate.
      • Can cause sexual side effects like low libido and an inability to orgasm or ejaculate.
      Weight
      CelexaProzac
      • Can cause minor weight gain (1 to 5 pounds).
      No weight related info.
      Upsides and benefits
      CelexaProzac
      • Effective at relieving depression and anxiety symptoms.
      • Causes less sleepiness compared to other antidepressants.
      • Six out of ten people who use an antidepressant for the first time find that it works for them.
      • Effective at relieving depression and anxiety symptoms.
      • Lowers relapse rates of depression and bulimia nervosa.
      • Causes less sleepiness than other antidepressants.
      • It's more energizing than other antidepressants, so it's good for people who have low energy.
      • It has been used to treat depression for a long time, so there's a lot of information available about how it works and how safe it is.
      • Six out of ten people who use an antidepressant for the first time find that it works for them.
      Downsides and risks
      CelexaProzac
      • Can cause sexual side effects like low libido and an inability to orgasm or ejaculate.
      • Can cause minor weight gain (1 to 5 pounds).
      • Celexa (Citalopram) can cause an irregular heartbeat if you take a high dose (40 mg a day, or more).
      • Not a good option for you if you have heart or liver problems.
      • Like most antidepressants, it can cause a higher risk of suicidal thoughts and behavior for people younger than 24 years.
      • The first antidepressant you try doesn't always work or it can cause side effects you really don't like. You might need to try a few different medications until you find one that works for you.
      • Can cause sexual side effects like low libido and an inability to orgasm or ejaculate.
      • Can increase feelings of anxiety or cause headaches during the first few weeks of taking it. These effects should go away over time.
      • More likely than other antidepressants to interact with other medications you're taking.
      • Like most antidepressants, it can cause a higher risk of suicidal thoughts and behavior for people younger than 24.
      • The first antidepressant you try doesn't always work or it can cause side effects you really don't like. You might need to try a few different medications until you find one that works for you.
      Tips from our pharmacists for people taking the medication
      CelexaProzac
      • Take with food to avoid upset stomach.
      • Takes about 8 to 12 weeks to see the medication's full effects on your mood.
      • Stop taking it slowly to avoid getting withdrawal symptoms.
      • Tell your doctor if you notice sudden mood changes or unusual thoughts.
      • Take in the morning with food to avoid side effects.
      • Takes about 8 to 12 weeks to see the medication's full effects on your mood.
      • Stop taking it slowly to avoid getting withdrawal symptoms.
      • Tell your doctor if you notice sudden mood changes or unusual thoughts.
      Learn more
      More about CelexaSide effectsReviews & ratingsAlternativesFDA package insert
      Have you used Celexa (citalopram)?
      Worth itNot sureNot worth it
      More about ProzacSide effectsReviews & ratingsAlternativesFDA package insert
      Have you used Prozac (fluoxetine)?
      Worth itNot sureNot worth it