Pharmacology · single question

What is the generally accepted maximum daily dose of acetaminophen for a healthy adult?

  1. 1000 mg/day
  2. 2000 mg/day
  3. Traditionally up to 4000 mg/day, though many clinicians now recommend a lower ceiling (~3000 mg/day) for routine/chronic use
  4. 6000 mg/day
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Correct answer: C. Traditionally up to 4000 mg/day, though many clinicians now recommend a lower ceiling (~3000 mg/day) for routine/chronic use

4 g/day has long been cited as the maximum, but due to hepatotoxicity risk (especially with chronic use, alcohol use, or liver disease), many guidelines and clinicians now recommend limiting routine use to about 3 g/day or less, and counseling patients to account for acetaminophen hidden in combination OTC/prescription products.

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