Acetaminophen Ibuprofen Dosing Charts When to Take Your Child to ER Nearly 9,500 young children are hospitalized each year for accidental medication poisoning. Acetaminophen* Dosing Chart 24-35 lbs, 11-15.9 kg, 5 mL (1 teaspoon), 2 tabs (160 mg) NOT recommended for babies less than 2 months...