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Published on: August 25, 2014
Metoclopramide toxicity in an infant
1Emergency Medicine Department, Naval Medical Center, Portsmouth, Virginia 23708, USA.
Insights
Metoclopramide overdose in infants can cause serious extrapyramidal side effects. This case highlights the need for careful dosing in pediatric patients to prevent toxicity.
Area of Science:
- Pharmacology
- Pediatric Medicine
- Toxicology
Background:
- Metoclopramide, a dopamine antagonist, is widely used in pediatrics for nausea and gastroesophageal reflux.
- Its prokinetic and antiemetic properties stem from both central and peripheral actions.
Observation:
- A six-month-old infant received a metoclopramide overdose of 24 mg (3 mg/kg) over nine hours.
- The infant exhibited toxic extrapyramidal symptoms.
Findings:
- Accidental metoclopramide overdose in infants can lead to severe extrapyramidal reactions.
- This case represents a toxicity report not previously documented in emergency medicine literature.
Implications:
- Emphasizes the critical need for precise metoclopramide dosing in pediatric patients.
- Highlights potential risks of extrapyramidal symptoms in pediatric overdose cases.
- Suggests increased awareness and vigilance regarding metoclopramide administration in infants.
Abstract:
Metoclopramide (4-amino-5-chloro-N-2-methoxybenzamide) is a central and peripheral acting dopamine antagonist. It also stimulates motility in the upper gastrointestinal tract and increases lower esophageal sphincter pressure. In the pediatric population, it is used extensively as an antiemetic and in the treatment of gastroesophageal reflux disease. The case of a six-month-old infant who was accidentally overdosed with 24 mg (3 mg/kg) of metoclopramide within a nine-hour period is presented. The patient demonstrated toxic extrapyramidal effects. There have been multiple early reports in the European literature of acute extrapyramidal reactions in the pediatric population, but no reports of toxicity exist in the current emergency medicine literature.
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