Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/12/2025

Bupropion Side Effects and Precautions

Introduction to Bupropion Side Effects

  • The American College of Physicians-affiliated Annals of Internal Medicine suggests that bupropion may have a lower risk of cardiovascular events compared to venlafaxine, although the evidence is weak 1
  • The National Comprehensive Cancer Network recommends starting with low doses and increasing gradually to minimize seizure risk 2

Dosing and Administration

  • For patients with moderate to severe hepatic impairment, the total daily dose should not exceed 150 mg, as recommended by Praxis Medical Insights 3
  • For moderate to severe renal impairment, the total daily dose should be reduced by half, according to Praxis Medical Insights 3

Special Considerations

  • Bupropion should be avoided in patients with a history of seizures, brain metastases, or other conditions that elevate seizure risk, as advised by the National Comprehensive Cancer Network 2
  • Bupropion can cause suicidal thoughts or behaviors, especially in young adults under 24 years, according to Praxis Medical Insights 3

Sexual Side Effects

  • Bupropion has a significantly lower rate of sexual adverse events compared to many other antidepressants, particularly SSRIs like fluoxetine or sertraline, as reported in the Annals of Internal Medicine 1

Contraindications and Precautions

  • Do not use bupropion with monoamine oxidase inhibitors (MAOIs) or within 14 days of stopping MAOIs, as recommended by Praxis Medical Insights 3
  • The maximum recommended daily dose is 450 mg to minimize seizure risk, according to Praxis Medical Insights 3

REFERENCES

2

Seizure Risk with Bupropion [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

3

Bupropion Dosing and Administration [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025