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Q: What is the correct fever reducer dosage for my 47-month-old, 14.3 kg child?

  • Myeongchan Kim
  • Dec 23, 2025
  • 2 min read

Updated: Jan 11


This post is a dramatization of a question and answer session experienced by our actual medical reviewers. Please note that this content is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.



Question:

My child is 47 months old and weighs 14.3 kg (about 31.5 lbs). I need help figuring out the correct dosage for fever reducers. What is the right amount to give?


Answer:

Hello. Here is a guide for fever reducer dosages for a 47-month-old (almost 4 years old) child weighing 14.3 kg.


First, please check the label on the bottle of fever reducer (syrup/suspension) you have at home.

You will need the following information:


1. Medication Name (e.g., Tylenol, Motrin, Advil, etc.)

2. Concentration (Strength) — This is indicated on the bottle as "XX mg/mL" or "XX mg/5 mL".


→ If you provide these two details, I can calculate the exact dosage in mL for you.


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📌 General Dosage Ranges (Use after checking your bottle's label)


Acetaminophen (e.g., Tylenol)

* Dose: 143–215 mg (based on 10–15 mg/kg)

* Frequency: Every 4 to 6 hours, up to 5 times a day.

* Based on Children's Tylenol suspension (160 mg/5 mL): approx. 4.5–6.7 mL


Ibuprofen (e.g., Advil, Motrin)

* Dose: 71–143 mg (based on 5-10 mg/kg)

* Frequency: Every 6 to 8 hours, up to 4 times a day.

* Based on Children's Ibuprofen suspension (100 mg/5 mL): approx. 3.6–7.2 mL


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⚠️ Safety Precautions

* Always use the dosing cup or syringe that comes with the medication. Do not use kitchen spoons.

* Giving two different types of fever reducers at the same time is generally not recommended.

* Give medicine based on your child's discomfort, not just the number on the thermometer.


If you can provide the medication name and its concentration, I can give you a more precise dosage recommendation.



For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.








 
 
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