Acetaminophen dosing for all ages.
Adults: 500–1000 mg q4–6h, max 4000 mg/day (3000 if liver disease or alcohol). Children: 15 mg/kg/dose, max 75 mg/kg/day. Adults < 50 kg: use weight-based. Hepatotoxicity risk above 4g/day. Check all combination products for hidden acetaminophen.