Wiktionary
fomepizole
n. (context medicine English) The heterocycle 4-methylpyrazole, used as an antidote to poisoning by methanol or ethylene glycol
Wikipedia
Fomepizole
Fomepizole or 4-methylpyrazole is indicated for use as an antidote in confirmed or suspected methanol or ethylene glycol poisoning. It may be used alone or in combination with hemodialysis. Apart from medical uses, the role of 4-methylpyrazole in coordination chemistry has been studied.
It is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.