Barbiturate Toxicity Follow-up

  • Author: Keith A Lafferty, MD; Chief Editor: Asim Tarabar, MD   more...
 
Updated: Jun 15, 2010
 

Further Inpatient Care

  • Patients with barbiturate toxicity generally need to be monitored closely and should be in an ICU setting.
  • Hemodialysis and hemoperfusion enhance elimination of barbiturates (this is best established with phenobarbital). Hemoperfusion is more efficacious than hemodialysis but is associated with a higher incidence of complications. Hemodialysis or hemoperfusion may be of benefit for patients resistant to standard supportive care, in stage IV coma, or with shock, severe hypothermia, renal failure, and pulmonary edema. Some recommend extracorporeal removal to shorten the duration of coma when patients are apneic or have serum concentrations of barbiturate >100 mg/L.
  • Barbiturate withdrawal is very similar to ethanol withdrawal. Specifically, one may see a reduction in intoxication and an apparent improvement in condition. This may be quickly followed by anxiety, weakness, tremors, nausea, vomiting, and abdominal cramps. In chronic, heavy users, 1.5-5 days after the last dose the patient may develop seizures, and, between 3 and 7 days after the last dose, delirium tremens may occur. Like ethanol, barbiturate withdrawal may be refractory to benzodiazepine therapy though these medications are first-line therapy.
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Complications

  • Overdose with barbiturate may be associated with multiple complications, the most common of which is pneumonia. Other life-threatening complications may include acute renal failure, pulmonary edema, and the sequelae of hypotension and respiratory depression. Survivors may develop dermal bullae.
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Prognosis

  • Mortality rates range from 1-10%.
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Patient Education

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Contributor Information and Disclosures
Author

Keith A Lafferty, MD  Adjunct Assistant Professor of Emergency Medicine, Temple University; Consulting Staff, Department of Emergency Medicine, South West Regional Medical Center

Keith A Lafferty, MD is a member of the following medical societies: American Academy of Emergency Medicine, American Medical Association, and Pennsylvania Medical Society

Disclosure: Nothing to disclose.

Coauthor(s)

Rehab Abdel-Kariem, MD  Resident Physician, Department of Emergency Medicine, Temple University Hospital

Rehab Abdel-Kariem, MD is a member of the following medical societies: American Academy of Emergency Medicine, American College of Emergency Physicians, American College of Physicians, American Medical Student Association/Foundation, Physicians for Human Rights, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Specialty Editor Board

David C Lee, MD  Research Director, Department of Emergency Medicine, Associate Professor, North Shore University Hospital and New York University Medical School

David C Lee, MD is a member of the following medical societies: American Academy of Emergency Medicine, American College of Emergency Physicians, American College of Medical Toxicology, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

John T VanDeVoort, PharmD  Regional Director of Pharmacy, Sacred Heart and St Joseph's Hospitals

John T VanDeVoort, PharmD is a member of the following medical societies: American Society of Health-System Pharmacists

Disclosure: Nothing to disclose.

Michael J Burns, MD  Instructor, Department of Emergency Medicine, Harvard University Medical School, Beth Israel Deaconess Medical Center

Michael J Burns, MD is a member of the following medical societies: American Academy of Clinical Toxicology, American College of Emergency Physicians, American College of Medical Toxicology, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

John D Halamka, MD, MS  Associate Professor of Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center; Chief Information Officer, CareGroup Healthcare System and Harvard Medical School; Attending Physician, Division of Emergency Medicine, Beth Israel Deaconess Medical Center

John D Halamka, MD, MS is a member of the following medical societies: American College of Emergency Physicians, American Medical Informatics Association, Phi Beta Kappa, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Chief Editor

Asim Tarabar, MD  Assistant Professor, Director, Medical Toxicology, Department of Emergency Medicine, Yale University School of Medicine; Consulting Staff, Department of Emergency Medicine, Yale-New Haven Hospital

Disclosure: Nothing to disclose.

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