Babies can usually have Tylenol (acetaminophen) every 4–6 hours as needed, but not more than 4–5 doses in 24 hours, and only in the correct weight‑based dose. Always confirm dosing with your pediatrician, especially for babies under 12 weeks old.

Safe timing and frequency

  • Most infant Tylenol products can be given every 4–6 hours if your baby still has pain or fever.
  • Do not give more than 5 doses in 24 hours; some pediatric sources recommend a maximum of 4 doses per 24 hours to be extra cautious.
  • Tylenol should not be used around the clock for more than 1–2 days in a row without your child’s doctor reviewing the cause of the fever or pain.

Age and when to call the doctor

  • For babies younger than 3 months (or under the package’s lowest age/weight), you should talk to a pediatrician before giving any Tylenol at all.
  • If fever lasts more than 3 days, pain more than 5 days, or your baby seems very ill (lethargic, trouble breathing, poor feeding), seek medical care urgently rather than repeating doses.

Dosing basics (very important)

  • Use only infant Tylenol (usually 160 mg per 5 mL) and always dose by weight , not just age, using the dropper or syringe that comes with the bottle.
  • Never give other medicines that contain acetaminophen at the same time, as this can cause overdose and serious liver injury.

Quick “red flag” checklist

Stop Tylenol and get medical help if:

  1. Your baby is under 3 months and has a fever.
  1. Your baby has trouble waking, breathing, or isn’t making wet diapers.
  1. You think you may have given too much, or used an adult preparation instead of the infant one.

Bottom line: how often can you give a baby Tylenol? Usually every 4–6 hours, up to 4–5 times in 24 hours, using the correct weight‑based infant dose and under a pediatrician’s guidance for very young babies or ongoing symptoms.

Information gathered from public forums or data available on the internet and portrayed here.