The appropriate dose of Tylenol (acetaminophen) for infants depends primarily on their weight and age, and it is crucial to use the correct concentration of the liquid form, which is typically 160 mg per 5 mL.
Dosage Guidelines for Infants (Using 160 mg/5 mL Liquid Acetaminophen)
- Infants 6 to 11 pounds (approximately 0–3 months): 1.25 mL
- Infants 12 to 17 pounds (approximately 4–11 months): 2.5 mL
- Infants 18 to 23 pounds (approximately 12–23 months): 3.75 mL
For infants under 12 weeks old, acetaminophen should only be given if directed by a doctor, due to the need for medical evaluation of fever in this age group
Frequency of Dosing
- The dose can be given every 4 to 6 hours as needed for fever or pain.
- Do not exceed 4 doses in 24 hours according to the American Academy of Pediatrics, although some manufacturers allow up to 5 doses per day
Important Notes
- Always use the dosing device (syringe or cup) that comes with the medication for accuracy.
- Do not give acetaminophen to infants under 12 weeks without medical advice.
- Consult your pediatrician for infants under 24 pounds or under 2 years old to confirm the appropriate dose.
- Avoid multi-ingredient products containing acetaminophen in children under 6 years old.
- Be cautious not to exceed the recommended dose to avoid liver damage
If your infant weighs more than 23 pounds or is older than 2 years, dosing adjustments are made, and Children's Tylenol formulations may be appropriate, but always confirm with a healthcare provider. In summary, for infants, the dose is weight-based and typically ranges from 1.25 mL to 3.75 mL of the 160 mg/5 mL liquid every 4 to 6 hours, not exceeding 4 doses per day unless otherwise directed by a doctor
