Which of the following is a specific inhibitor of the enzyme alcohol dehydrogenase and is useful in the treatment of methanol poisoning
## **Core Concept**
The question tests the understanding of the treatment of methanol poisoning, specifically focusing on the role of alcohol dehydrogenase inhibitors. Alcohol dehydrogenase is an enzyme involved in the metabolism of alcohol and certain toxic alcohols like methanol. Inhibiting this enzyme can prevent the formation of toxic metabolites.
## **Why the Correct Answer is Right**
Fomepizole (also known as 4-methylpyrazole) is a specific inhibitor of alcohol dehydrogenase. By inhibiting this enzyme, fomepizole prevents the conversion of methanol into its toxic metabolites, formaldehyde and formic acid, thereby reducing the toxicity associated with methanol poisoning. This makes fomepizole a valuable treatment option for methanol intoxication.
## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is blank and does not provide a valid choice for consideration.
- **Option B:** This option is also blank and does not offer a viable alternative.
- **Option C:** Similarly, this option is blank and lacks relevance to the question.
- **Option D:** This option is blank as well, providing no useful information for evaluating the correct answer.
## **Clinical Pearl / High-Yield Fact**
A key clinical point to remember is that fomepizole is used not only for methanol poisoning but also for ethylene glycol poisoning, as it inhibits alcohol dehydrogenase in both cases, preventing the formation of toxic metabolites.
## **Correct Answer:** . fomepizole