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[Acute isoniazid poisoning presenting convulsion and liver dysfunction]
Abstract:
A-19-year-old girl ingested 7.4 g of Isoniazid (INH) and 14.5 g of Ethambutol (EB) intentionally. She presented repetitive generalized convulsions with metabolic acidosis, treated with diazepam and 7.5 g of Pyridoxine (Vitamin B6). During day 4 and 5, liver dysfunction worsened and prothrombin time declined below 5%. She was treated with infusion of fresh frozen plasma and fully recovered on day 13. Serum concentration of INH and EB at 5 hours after ingestion was 7.6, 0.94 micrograms/ml respectively.