4-Hydroxymethylpyrazole

4-Hydroxymethylpyrazole is the main primary metabolite of formomizole formed in the process of liver oxidation. The plasma level increases with the increase of dosage of formomizole, but the half-life is relatively short. 4-Hydroxymethylpyrazole has a certain inhibitory effect on alcohol dehydrogenase (ADH) in humans and monkeys, but its inhibitory effect is obviously lower than that of Fomepizole.