Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 11/6/2025

Naltrexone and Lorazepam Combination Therapy

Introduction to Precautions and Management

  • The American Gastroenterological Association recommends naltrexone-bupropion ER is contraindicated in patients with seizure disorders 1
  • The guideline society suggests abrupt discontinuation of benzodiazepines, including lorazepam, is an absolute contraindication for bupropion use due to dramatically increased seizure risk 3

Patient Monitoring and Management

  • Blood pressure and heart rate must be monitored periodically, especially during the first 12 weeks of naltrexone-bupropion treatment, as recommended by the American Heart Association 1
  • Liver function tests should be performed every 3-6 months for long-term naltrexone treatment, according to the American Association for the Study of Liver Diseases 4
  • The American Academy of Neurology recommends assessing for seizure risk factors before initiating or continuing naltrexone-bupropion therapy 1

Contraindications and Special Considerations

  • Current opioid use is an absolute contraindication for naltrexone-bupropion, as stated by the American Society of Addiction Medicine 1
  • Uncontrolled hypertension is a contraindication for bupropion use, according to the American Heart Association 2
  • Seizure disorders are a contraindication for bupropion use, as recommended by the American Academy of Neurology 1

Dosing Considerations

  • The guideline society recommends reducing naltrexone-bupropion dose by half in moderate to severe renal impairment 3
  • The maximum daily dose of bupropion component should be 150 mg in moderate to severe hepatic impairment, as suggested by the American Association for the Study of Liver Diseases 3

REFERENCES

2

Bupropion Dosing and Administration [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

3

Naltrexone Treatment Guidelines [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

4

Bupropion Usage Considerations [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025