Ethylene glycol

What it isToxic alcohol metabolized by alcohol dehydrogenase to glycolic and oxalic acid.

Why this oneNot a drug — the other half of the ADH-inhibitor toxidrome, and the reason fomepizole exists.

What limits it⚑ Oxalate causes calcium oxalate crystalluria and renal failure, and chelates calcium. Anion-gap acidosis with an osmolar gap; treat before metabolism completes.