Check labels for acetaminophen,
and don’t take more than 4 grams—equal to eight Extra Strength
Tylenol tab--lets—a day from all sources. Alcohol (three drinks or more at a time) and certain other drugs increase the risk. Heavy drinkers and those with liver disease should avoid, or at least limit, acetaminophen. Taking the drug while fasting also increases the risk.
• Kidney damage. NSAIDs (and acetaminophen to a lesser extent) can damage the kidneys.