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Pediatric Monoamine Oxidase Inhibitor Toxicity Follow-up

  • Author: Soumya Ganapathy, MD; Chief Editor: Timothy E Corden, MD  more...
Updated: Jan 15, 2015

Further Inpatient Care

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  • Patients with monoamine oxidase inhibitor (MAOI) overdoses should be admitted to the hospital primarily because of the prolonged latent stage.
  • All patients with suspected MAOI ingestion require 24 hours of ICU care or frequent monitoring in an inpatient facility.

Inpatient & Outpatient Medications

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  • Avoid indirect sympathomimetics and foods that contain tyramine.
  • Avoid drugs such as meperidine, dextromethorphan, and SSRIs (eg, fluoxetine, sertraline) because they can lead to a hyperserotonergic state.
  • Avoid ketamine.


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  • Any child with evidence of MAOI toxicity should be stabilized and transferred to a tertiary pediatric center.


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  • Keep medications and other ingestible substances locked or safely stored where children cannot reach them.


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  • Pulmonary edema
  • Coma
  • Myocardial ischemia
  • Intracerebral hemorrhage
  • Rhabdomyolysis
  • Acute renal failure
  • Disseminated intravascular coagulation
  • Hemolysis
  • Subarachnoid hemorrhage
  • Serotonin syndrome


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  • Mortality and morbidity are dependent on the time of presentation, the occurrence of co-ingestions, and the status of the patient upon his or her arrival in the emergency department.
  • Most patients recover without sequelae when given careful supportive care.

Patient Education

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Contributor Information and Disclosures

Soumya Ganapathy, MD Department of Emergency Medicine, Beverly Hospital

Soumya Ganapathy, MD is a member of the following medical societies: American College of Emergency Physicians

Disclosure: Nothing to disclose.


Frank A Maffei, MD, FAAP Associate Professor of Pediatrics, Temple University School of Medicine; Medical Director, Pediatric Intensive Care Unit, Janet Weis Children's Hospital at Geisinger Health System

Frank A Maffei, MD, FAAP is a member of the following medical societies: American Academy of Pediatrics

Disclosure: Nothing to disclose.

Specialty Editor Board

Mary L Windle, PharmD Adjunct Associate Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Nothing to disclose.

Jeffrey R Tucker, MD Assistant Professor, Department of Pediatrics, Division of Emergency Medicine, University of Connecticut School of Medicine, Connecticut Children's Medical Center

Disclosure: Received salary from Merck for employment.

Chief Editor

Timothy E Corden, MD Associate Professor of Pediatrics, Co-Director, Policy Core, Injury Research Center, Medical College of Wisconsin; Associate Director, PICU, Children's Hospital of Wisconsin

Timothy E Corden, MD is a member of the following medical societies: American Academy of Pediatrics, Phi Beta Kappa, Society of Critical Care Medicine, Wisconsin Medical Society

Disclosure: Nothing to disclose.

Additional Contributors

Michael E Mullins, MD Assistant Professor, Division of Emergency Medicine, Washington University in St Louis School of Medicine; Attending Physician, Emergency Department, Barnes-Jewish Hospital

Michael E Mullins, MD is a member of the following medical societies: American Academy of Clinical Toxicology, American College of Emergency Physicians

Disclosure: Received stock ownership from Johnson & Johnson for none; Received stock ownership from Savient Pharmaceuticals for none.

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