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Compare Wellbutrin XL vs. Prozac

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

Key takeaways

Bupropion (Wellbutrin) and fluoxetine (Prozac) are both used to treat depression, but they belong to different medication classes. Bupropion is an atypical antidepressant that works by boosting norepinephrine and dopamine levels in the brain, while fluoxetine is a selective serotonin reuptake inhibitor (SSRI) that increases serotonin levels. Bupropion is also used for seasonal affective disorder (SAD) and is less likely to cause weight gain and sexual side effects compared to fluoxetine. However, bupropion is not suitable for people with a history of seizures or eating disorders. Fluoxetine, on the other hand, is also used to treat obsessive-compulsive disorder (OCD), bulimia, panic disorder, and depression from bipolar 1 disorder. It can take up to 2 months to feel the full effects of fluoxetine, and it can cause side effects like difficulty sleeping and nausea. Both medications can raise the risk of suicidal thoughts in people under 24 years old and should not be stopped suddenly to avoid withdrawal symptoms.

  • Bupropion
    Fluoxetine (Prozac)
  • Bupropion
    Fluoxetine (Prozac)

  • Summary of Wellbutrin XL vs. Prozac

    Summary for Atypical antidepressant
    Prescription only

    Bupropion is taken by mouth to treat depression and seasonal affective disorder (SAD). It's available as short-acting tablets that are taken two or three times a day, as well as long-acting versions that are taken once daily. Bupropion has fewer sexual side effects compared to other antidepressants, but it's not a good choice for people with a history of seizures, eating disorders, or drink alcohol regularly.

    Summary for SSRI
    Prescription only

    Fluoxetine (Prozac) is a selective serotonin reuptake inhibitor (SSRI). It's used to treat several mental health conditions, including depression and panic disorder. The immediate-release pill and liquid are taken by mouth, typically once or twice daily. The delayed-release capsule is taken weekly, but it's approved only for depression. Some common side effects of fluoxetine (Prozac) include headaches, difficulty sleeping, and tiredness. Don't suddenly stop this medication if you've been taking it for a while; doing so can lead to symptoms of withdrawal.

  • Indications of Wellbutrin XL vs. Prozac

    Indications for
    •Depression
    •Seasonal affective disorder (SAD) - only bupropion HCl extended-release (Wellbutrin XL)
    Indications for
    •Major depressive disorder (MDD)
    •Obsessive-compulsive disorder (OCD)
    •Bulimia
    •Panic disorder
    •Depression from bipolar 1 disorder
    •Treatment resistant depression

  • Pros and Cons of Wellbutrin XL vs. Prozac

    Pros and Const for Atypical antidepressant
    Pros
    •Works well for depression and can be used alone or in combination with other antidepressants
    •Causes fewer sexual side effects than some other antidepressants
    •Available in a lower-cost generic form
    •Less likely to cause weight gain compared to other antidepressants
    •Good option for people who haven't had success with traditional antidepressants like selective serotonin reuptake inhibitors (SSRIs)
    Cons
    •Can take several weeks to feel the full effects
    •Not the best option if you have a history of seizures or eating disorders like as anorexia or bulimia
    •Might need to limit or avoid using alcohol during treatment
    •Can cause trouble sleeping if you take it later in the day
    Pros and Const for SSRI
    Pros
    •Good choice for treating depression, OCD, and panic disorder
    •Less likely to make you sleepy compared to some other antidepressants, such as paroxetine (Paxil)
    •Taken by mouth, typically once daily (IR capsules and liquid) or once weekly (DR capsules, for depression only)
    •Can be taken with or without food
    Cons
    •Can take up to 2 months for you to feel the full effects of the medication
    •Can raise the risk of suicidal thoughts and/or behavior in those age 24 or younger
    •Can interact with other medications, especially those affecting serotonin levels
    •Can cause withdrawal symptoms if you suddenly stop taking it

  • Common Side Effects of Wellbutrin XL vs. Prozac

    Common Side Effects for
    •Headache
    •Dry mouth
    •Nausea
    •Trouble sleeping
    •Dizziness
    •Sore throat
    •Constipation
    •Restlessness (agitation)
    Common Side Effects for
    •Difficulty falling asleep (up to 33%)
    •Nausea (up to 29%)
    •Headache (21%)
    •Weakness (up to 21%)
    •Diarrhea (up to 18%)
    •Low appetite (up to 17%)
    •Drowsiness (up to 17%)
    •Anxiety (up to 15%)
    •Nervousness (up to 14%)
    •Tremor (up to 13%)
    •Dry mouth (up to 12%)
    •Throat pain (up to 11%)
    •Yawning (up to 11%)
    •Low sex drive (up to 11%)

  • Warnings of Wellbutrin XL vs. Prozac

    Common Side Effects for
    •Suicidal thoughts or behavior and abnormal mood changes
    •Mental health changes
    •Seizures
    •High blood pressure
    •Extreme enthusiasm or excitement (mania)
    Common Side Effects for
    •Worsening depression, suicidal thoughts and behavior
    •Anxiety and trouble sleeping
    •Serotonin syndrome
    •Severe allergic reactions
    •Not for use alone in bipolar disorder
    •Risk of bleeding
    •Glaucoma
    •Low blood sodium levels
    •Life-threatening abnormal heart rhythm (QT prolongation)

  • Prices with our coupons for Wellbutrin XL vs. Prozac

    Learn more about Bupropion
    Learn more about Fluoxetine

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