Reference only — not a prescription
This calculation is based on standard dosing and is for reference only, not medical advice. Always consult a doctor or pharmacist and follow the product label before dosing. Do not use for infants under 3 months, when the exact weight is unknown, or with underlying conditions (liver/kidney disease, dehydration). Seek immediate care for emergency signs (seizure, lethargy, breathing difficulty, fever over 39°C that persists, or any fever under 3 months of age).
Pediatric Fever Medication Dose Calculator
Enter your child's weight and the medicine to see how many mL per dose, how many hours apart, and the daily maximum — plus safe alternating intervals.
👶 Child information
If you don't know the exact weight, don't calculate — confirm at a clinic.
🔁 Safe alternating (cross-dosing)
- • When repeating the same medicine, keep at least a 4-hour interval.
- • Acetaminophen (Tylenol) and ibuprofen/dexibuprofen (Brufen/Maxibupen) are different classes, so they can be alternated. If one alone does not control the fever, alternate with at least a 2-hour gap while respecting each drug's own minimum interval and daily maximum.
- • Ibuprofen and dexibuprofen are the same NSAID class. Do not alternate between them — use only one (double dosing risks kidney/stomach harm).
- • Routine alternating is not recommended. If the fever persists enough to need alternating, consult a doctor or pharmacist.
💧 Single dose
Single dose (recommended midpoint)
5.9 mL
Allowed range: 4.7~7.0 mL · 150 mg~225 mg
Minimum interval
4~6시간
Max doses per day
5 ×
Max daily amount
35.2 mL
1,125 mg
Minimum age
4 months or older
Use the measuring cup or oral syringe included with the product for accurate dosing.
⚠️ Cautions & warnings
- • Never exceed the daily maximum amount or number of doses. Acetaminophen overdose can cause liver damage; ibuprofen/dexibuprofen overdose can harm the stomach and kidneys.
⏰ Next dose time
Dosing basis & sources
- 🏥 Korean Pediatric Society — pediatric fever & antipyretic guidance
- 📋 Ministry of Food and Drug Safety — approved product labeling
- 🏷️ Product labels: Children's Tylenol, Cetopen, Champ, Brufen, Maxibupen
- 🗓️ Verified 2026-07-05
※ These are reference values based on standard dosing and may vary by product, age, and condition. Always follow the product label and your doctor/pharmacist.
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