Objectioe. The alcohol dehydrogenase inhibitor 4-methylpyrazole (4-MP)
is a new antidote of ethylene glycol (EG) intoxication. The purpose o
f the present case report was to demonstrate 4-MP efficiency in EG poi
soning in a 4-year-old child. Method and Results. 4-MP Treatment was p
erformed 7 hours after EG ingestion. Plasma EG and 4-MP concentrations
were measured 2 hours after each infusion of 4-MP. Plasma 4-MP concen
trations were in the range of the values reported to block EG metaboli
sm. The efficiency of 4-MP treatment was confirmed by the rapid correc
tion of metabolic acidosis without alkalization and by the increase in
EG half-life. No adverse effect of 4-MP was observed. Conclusion. Thi
s child ingested a potentially lethal dose of EG despite a high concen
tration of bittering agent in antifreeze. EG poisoning was treated eff
iciently by 4-MP without recourse to hemodialysis.