How often can I give Infant Tylenol?

You can give Infant Tylenol every 4-6 hours as needed, but do not exceed 5 doses in 24 hours. If fever persists beyond 3 days, contact your pediatrician.

Is Infant Tylenol the same concentration as Children's Tylenol?

Yes, since 2011, Infant Tylenol and Children's Tylenol are both 160mg/5mL. The main difference is the measuring device - infant products come with a syringe for more precise small-volume dosing.

What if I accidentally give too much Tylenol?

If you suspect an overdose, contact Poison Control (1-800-222-1222) immediately or seek emergency medical care. Symptoms of overdose may not appear for several hours.

Can I give Tylenol and ibuprofen together?

Some doctors recommend alternating acetaminophen and ibuprofen for persistent fevers. However, ibuprofen is not recommended for infants under 6 months. Consult your pediatrician for guidance on alternating medications.

Pediatric+ Chart

Infant Tylenol Dosage Calculator by Weight

Calculate the correct dose of Infant Tylenol (acetaminophen 160mg/5mL) based on your baby's weight. Safe dosing for infants and toddlers.

Infant Tylenol

Calculate the correct dose of Infant Tylenol (acetaminophen 160mg/5mL) based on your baby's weight. Safe dosing for infants and toddlers.

Baby's WeightEnter your baby's current weight

Dose StrengthStandard infant dose is 10-15 mg/kg

mg/kg

Do not give more than 5 doses in 24 hours. Wait at least 4 hours between doses. For infants under 3 months, consult a doctor before use. Always use the measuring device provided with the medication.

Visual Syringe Guide

Use this interactive syringe visualization to verify your calculated dose. Enter the volume from your calculation above to see exactly where the plunger should land.

Syringe Configuration

Desired Volume (mL)

Quick Select

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Administration Note

For a 0.50 mL dose, pull the plunger back until the top ring of the black stopper aligns with the corresponding mark.

Volume Match0.50 mL

Important Disclaimer

Do not give more than 5 doses in 24 hours. Wait at least 4 hours between doses. For infants under 3 months, consult a doctor before use. Always use the measuring device provided with the medication.

About This Calculator

Infant Tylenol (acetaminophen) is commonly used to reduce fever and relieve pain in babies and toddlers. The current infant formulation is 160mg/5mL, the same concentration as Children's Tylenol liquid. Proper weight-based dosing is critical for infant safety.

How It Works

Enter your baby's weight and select the dosing strength. The calculator uses the standard 10-15 mg/kg guideline to determine the correct volume of Infant Tylenol to give. Always use the syringe or dropper that comes with the medication for accurate measurement.

Frequently Asked Questions

Acetaminophen can generally be given to infants 3 months and older. For babies under 3 months, consult your pediatrician first, especially if they have a fever.

Clinical Review

Dr. Igor I. Bussel, MD

Board-Certified Ophthalmologist

Dr. Igor I. Bussel is a board-certified ophthalmologist and fellowship-trained surgeon affiliated with the University of California, Irvine (UCI), the Gavin Herbert Eye Institute, and the UCI School of Medicine.

Last Updated: 2025-01-05

Sources & Guidelines

Medically Reviewed

Evidence-Based

Updated 2025-01-05

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References

Reviewed by: Pediatric Clinical Review Team (MD, FAAP)

Last updated: 2025-01-05