But heavy drinking can alter enzyme activity so more of that byproduct is produced, potentially causing liver damage even with what's usually a safe dose of acetominophen.

但是大量饮酒却会使酶的活性发生变化。即便只是服用乙酰氨基酚的安全用量，因饮酒而被分解出更多的副产物得以残留，进而可能会导致肝损伤。