For a 4-month-old baby, the recommended Tylenol (acetaminophen) dose is typically around 2.5 ml of infant acetaminophen suspension (160 mg/5 ml), based on the infant's weight which is usually between 12 to 17 pounds (5.5 to 7.9 kg) for that age range. This dose can be given every 4 to 6 hours, but no more than four doses should be given within 24 hours. It is important to consult a pediatrician before administering Tylenol to infants under 6 months old, as the dosage can vary depending on the baby's exact weight and individual health conditions. Also, never exceed the recommended dosage or give any other medication containing acetaminophen concurrently. Always use the dosing device that comes with the medication to ensure accurate dosing.
