Acute Isoniazid Intoxication: Seizures, Acidosis And Coma

Autor:	W Temmerman, K Vandewoude, Annemieke Dhondt
Rok vydání:	1999
Předmět:	Coma business.industry medicine.medical_treatment Metabolic disorder Isoniazid Anion gap Metabolic acidosis General Medicine bacterial infections and mycoses medicine.disease Anesthesia Convulsion medicine medicine.symptom business Dialysis Acidosis medicine.drug
Zdroj:	Acta Clinica Belgica. 54:211-216
ISSN:	2295-3337 1784-3286
DOI:	10.1080/17843286.1999.11754234
Popis:	Isoniazid (INH) is the most widely used of the antituberculosis drugs. An acute overdose is potentially fatal and is characterized by the clinical triad of repetitive seizures unresponsive to the usual anticonvulsants, metabolic acidosis with a high anion gap and coma. The diagnosis of INH overdose should be considered in any patient who presents with an unexplained metabolic acidosis and convulsions. The cornerstone of therapy consists in pyridoxine (vitamin B6) and the dose should be equal to the amount of INH ingested. When conservative therapy fails or in case of renal insufficiency, dialysis must be considered. Severe central nervous toxicity can also be caused by chronic ingestion of higher than therapeutic doses of INH. In those cases pyridoxine-therapy can be useful as well. In the present paper a case of acute overdose of INH is reported, followed by a review of the literature.
Databáze:	OpenAIRE
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