Does Wellbutrin (Bupropion) Help with Mood and Anger?
Yes, bupropion is FDA-approved and clinically effective for improving mood in major depressive disorder, and it can help reduce irritability and anger symptoms associated with depression. 1, 2
Evidence for Mood Improvement
Bupropion is FDA-approved as an antidepressant and has demonstrated effectiveness for treating major depressive disorder at 300 mg daily 1. The drug works through dopamine-norepinephrine reuptake inhibition, which distinguishes it from SSRIs and gives it a unique mechanism for addressing mood symptoms 3, 4.
Clinical trial data shows bupropion significantly improves depressive symptoms with similar efficacy to SSRIs like escitalopram and fluoxetine 5, 3. In a 2004 study specifically examining mood dimensions, bupropion SR produced particularly robust effects on anhedonia (inability to feel pleasure) and positive affect compared to placebo, with items assessing low positive affect responding to earlier/lower doses and high positive affect responding to later/higher doses 6.
For patients with depressed mood, the 2022 AGA guideline explicitly states: "it is reasonable to prioritize naltrexone-bupropion ER for appropriate patients with depressed mood," noting that bupropion at 300 mg daily has been shown effective for long-term treatment of recurrent major depression 1.
Effects on Irritability and Anger
The relationship between bupropion and anger/irritability is more nuanced and requires careful monitoring:
Important Safety Consideration: The FDA drug label carries warnings that patients should be monitored for "new or worse irritability" and "acting aggressive, being angry, or violent" as potential adverse effects, particularly when starting treatment or adjusting doses 2. These symptoms can indicate worsening depression and require immediate clinical attention.
However, when irritability and anger are symptoms of underlying depression, treating the depression with bupropion typically improves these symptoms as the mood disorder resolves 6, 3. A 2023 case report demonstrated that bupropion helped resolve irritability and agitation in a patient with substance use disorder and bipolar disorder, with the patient reporting "significant improvement in her psychotic and mood symptoms" within days 7.
Clinical Algorithm for Use
Start bupropion if:
- Patient has major depressive disorder with prominent anhedonia, low energy, or apathy
- Irritability/anger appears secondary to depression (not primary aggression)
- Patient wants to avoid sexual side effects common with SSRIs 5, 8
- Patient has comorbid smoking cessation needs 9, 1
Monitor closely (weeks 1-2) for:
- New or worsening irritability, agitation, or aggressive behavior 2
- Anxiety symptoms (bupropion can be activating) 10, 11
- Suicidal thoughts, especially in patients under 24 years 2
Discontinue immediately if:
- Patient develops new aggressive behavior or hostility
- Seizures occur (bupropion lowers seizure threshold) 2
- Manic symptoms emerge (particularly in bipolar disorder) 2, 12
Important Contraindications and Cautions
Avoid bupropion in patients with:
- Seizure disorders or conditions that increase seizure risk (brain metastases, stroke) 9, 1
- Uncontrolled hypertension 1
- Eating disorders (increased seizure risk)
- Current use of MAO inhibitors 1
Use cautiously in:
- Bipolar disorder (risk of phase shifting to mania, though a 2016 meta-analysis found the rate similar to other antidepressants at 11% vs 10%) 12, 13
- Patients with anxiety disorders (activating properties may worsen anxiety initially) 11
Dosing Strategy
Start at 150 mg once daily in the morning (extended-release formulation), then increase to 300 mg daily after one week if tolerated 10, 3. The activating nature means the second dose should be taken before 3 PM to minimize insomnia risk 10. Maximum dose is 450 mg daily, though most patients respond to 300 mg 3.
Assess response at 6-8 weeks - if inadequate improvement in mood symptoms, consider switching or augmenting therapy per ACP guidelines 5.
Bottom Line
Bupropion effectively treats depressive mood disorders and can reduce irritability/anger when these symptoms stem from depression. However, paradoxically, it can also cause or worsen irritability and aggression as an adverse effect in some patients. Close monitoring during the first 1-2 weeks is essential to distinguish therapeutic improvement from adverse activation. The drug's unique dopaminergic mechanism makes it particularly useful for depression with prominent anhedonia, low energy, and apathy, while avoiding the sexual dysfunction common with SSRIs 5, 6, 3.