What is the maximum dose of acetaminophen?

For a 50-year-old woman, the maximum dose of acetaminophen is 4g per day (8 extra-strength tablets) for healthy adults. For very long-term use, it may be preferable to lower the maximum dose to 3g per day (6 extra strength tablets). For a frail elderly person, a person who drinks alcohol regularly or a person with liver problems, a dose of 3g per day is considered safe. For children and infants, the maximum dose of acetaminophen depends on their weight. Ask a pharmacist to calculate or tell you, for your specific situation, the maximum dose to take.