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Published on: January 8, 2020
Gabapentin overdose in a military beneficiary
Steven G Schauer1, Shawn M Varney
1Department of Emergency Medicine, San Antonio Military Medical Center-North, 3851 Roger Brooke Drive, Fort Sam Houston, TX 78234, USA.
A large gabapentin overdose of 90g caused only mild symptoms like nausea and sedation. This case suggests gabapentin has a wide therapeutic margin and may be safe even in overdose scenarios.
Area of Science:
- Clinical Toxicology
- Pharmacology
Background:
- Gabapentin is an anticonvulsant and analgesic medication.
- Overdose cases are rare, and its safety profile in large ingestions requires further understanding.
Observation:
- A 59-year-old patient ingested 90g of immediate-release gabapentin.
- Serum gabapentin level was 72.8 mcg/mL three hours post-ingestion.
- The patient presented with only mild nausea and sedation, with normal laboratory results and electrocardiogram.
Findings:
- Despite a massive gabapentin ingestion, the patient experienced minimal adverse effects.
- Laboratory tests, including renal and liver function, were unremarkable.
- The absence of significant toxicity indicates a potentially wide therapeutic margin for gabapentin.
Implications:
- Gabapentin overdose may be associated with lower toxicity than previously assumed.
- This case supports the potential safety of gabapentin in overdose situations.
- Further research into gabapentin's overdose profile is warranted.
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