For a 4-month-old infant, the appropriate dose of Tylenol (acetaminophen) depends primarily on the baby's weight. Generally, infants aged 4 to 11 months who weigh between 12 and 17 pounds (5.5 to 7.9 kg) should be given 2.5 mL of infant acetaminophen liquid (160 mg per 5 mL concentration) per dose. This dose can be repeated every 4 to 6 hours as needed, but no more than 5 doses should be given in 24 hours
. Key points to remember:
- Use the dosing syringe or cup that comes with the product for accuracy.
- Do not exceed 5 doses in 24 hours.
- If the infant weighs less than 12 pounds or is younger than 3 months, consult a doctor before giving acetaminophen
- If fever or pain persists beyond 3 days, or new symptoms develop, contact a healthcare provider
- Avoid giving any other medication containing acetaminophen simultaneously to prevent overdose
In summary, for a typical 4-month-old weighing 12-17 pounds, give 2.5 mL of infant Tylenol liquid every 4 to 6 hours as needed, not exceeding 5 doses per day, and always consult your pediatrician if unsure
