Compare Prozac vs. Wellbutrin

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

Prozac
(fluoxetine)

Wellbutrin
(bupropion)

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.Improves mood. Wellbutrin (Bupropion) is good for treating depression and has fewer sexual side effects than other antidepressants, but you need to be okay with avoiding alcohol.
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Coupons for Prozac
Best available price for 30 (20mg) capsules of fluoxetine
Coupons for Wellbutrin
Best available price for 60 (75mg) tablets of bupropion
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
4.74Prozac
Reviews for Prozac (fluoxetine)
62%
of people (All ages) say Prozac (fluoxetine) is worth it
40%
say it works well
16%
say it's a big hassle
1319 reviews
Have you used Prozac (fluoxetine)?
Worth itNot sureNot worth it
Reviews for Wellbutrin (bupropion)
60%
-2% worse vs. Prozac (fluoxetine)
40%
Same vs. Prozac (fluoxetine)
13%
+3% better vs. Prozac (fluoxetine)
1164 reviews
Have you used Wellbutrin (bupropion)?
Worth itNot sureNot worth it
Side effects
ProzacWellbutrin
  • 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 »
  • Agitation 10%
  • Dry mouth 10%
  • Headache/migraine 4%
  • Constipation 9%
  • Nausea/vomiting 4%
  • Excessive sweating 7%
  • Dizziness 6%
  • Tremor 13%
  • Sleep difficulty 3%
More Wellbutrin side effects »
How it works
ProzacWellbutrin
Prozac (Fluoxetine) is a selective serotonin reuptake inhibitor (SSRI) antidepressant. It increases serotonin activity in the brain, which regulates mood.Wellbutrin (Bupropion) is an atypical antidepressant. Researchers don't know exactly how it works, but it seems to change dopamine and norepinephrine activity in the brain, which regulate mood.
Type of medication
ProzacWellbutrin
Prescription only
Prescription only
Available as
ProzacWellbutrin
  • Pill
  • Delayed release capsule
  • Liquid
  • Pill
  • Extended release
Used for
ProzacWellbutrin
Risk factors for serious side effects
ProzacWellbutrin
  • Age 24 years or younger
  • Using other medications that affect serotonin
  • Stopping Prozac (Fluoxetine) suddenly
  • History of heart problems
  • History of liver problems
Detailed Prozac (fluoxetine) risks & warnings »
  • Age 24 years or younger
  • History of depression
  • History of bipolar disorder
  • At risk for bipolar disorder
  • Withdrawing from nicotine
Detailed Wellbutrin (bupropion) 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.

Alcohol
ProzacWellbutrin
No alcohol related info.
  • Has a higher risk of causing seizures, especially if you have a seizure disorder, eating disorder, or if you drink alcohol. So, it's not a good medication if you drink a lot.
Food
ProzacWellbutrin
  • Take in the morning with food to avoid side effects.
No food related info.
Kidneys and liver
ProzacWellbutrin
No kidneys and liver related info.
  • Wellbutrin (Bupropion) is processed by the kidney and liver. If you have kidney or liver problems, you may need a different dose to prevent increased risk for side effects.
Sex
ProzacWellbutrin
  • Can cause sexual side effects like low libido and an inability to orgasm or ejaculate.
No sex related info.
Weight
ProzacWellbutrin
No weight related info.
  • It's less likely to cause weight gain than other antidepressants.
Upsides and benefits
ProzacWellbutrin
  • 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.
  • Effective at relieving depression symptoms.
  • Causes fewer sexual side effects than other antidepressants. Can actually boost sex drive for some people.
  • Can be taken with other antidepressants to counteract their sexual side effects.
  • Has some stimulant effects, so it can be energizing.
  • Can help with ADHD symptoms.
  • Also used to suppress appetite and help you quit smoking.
  • Six out of ten people who use an antidepressant for the first time find that it works for them.
Downsides and risks
ProzacWellbutrin
  • 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.
  • Wellbutrin (Bupropion) can be stimulating, so it can cause anxiety or insomnia the first few days you're taking it.
  • Generally not as good as other antidepressants for people who have anxiety.
  • It's less likely to cause weight gain than other antidepressants.
  • Has a higher risk of causing seizures, especially if you have a seizure disorder, eating disorder, or if you drink alcohol. So, it's not a good medication if you drink a lot.
  • It contains the same ingredient as a medication that helps you to stop smoking, (Zyban), so these two meds can't be used together.
  • 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
ProzacWellbutrin
  • 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.
  • Wellbutrin (Bupropion) makes you energized, so take it in the morning to avoid difficulty sleeping later that night.
  • Takes about 8 to 12 weeks to see the medication's full effects on your mood.
  • There are no sexual side effects from this medication.
  • Stop taking it slowly to avoid getting withdrawal symptoms.
  • Tell your doctor if you notice sudden mood changes or unusual thoughts.
  • The extended-release tablet shell can show up unchanged in your stool, but don't worry since the medication was still absorbed by your body.
Learn more
More about ProzacSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Prozac (fluoxetine)?
Worth itNot sureNot worth it
More about WellbutrinSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Wellbutrin (bupropion)?
Worth itNot sureNot worth it