What lifestyle factor increases risk of acetaminophen liver injury?

Prepare effectively for the Over-the-Counter Drugs, Herbal Supplements, Vitamins, and Minerals Test. Engage with detailed flashcards and interactive multiple-choice questions, accompanied by informative hints and explanations. Get exam-ready with confidence!

Multiple Choice

What lifestyle factor increases risk of acetaminophen liver injury?

Explanation:
Chronic alcohol use raises the risk of acetaminophen liver injury. Long-term drinking induces liver enzymes, especially CYP2E1, which increases the conversion of acetaminophen into the toxic metabolite NAPQI. At the same time, habitual alcohol use often leads to poorer nutrition and depleted glutathione stores, weakening the liver’s ability to detoxify NAPQI. The result is more NAPQI exposure and greater liver cell damage even at normally recommended doses. The other lifestyle factors don’t have this combination of enzyme induction and glutathione depletion that drives acetaminophen toxicity.

Chronic alcohol use raises the risk of acetaminophen liver injury. Long-term drinking induces liver enzymes, especially CYP2E1, which increases the conversion of acetaminophen into the toxic metabolite NAPQI. At the same time, habitual alcohol use often leads to poorer nutrition and depleted glutathione stores, weakening the liver’s ability to detoxify NAPQI. The result is more NAPQI exposure and greater liver cell damage even at normally recommended doses. The other lifestyle factors don’t have this combination of enzyme induction and glutathione depletion that drives acetaminophen toxicity.

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