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All current Tylenol products (infant and children's) are 160 mg/5 mL
Recommended Dose
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mg of acetaminophen
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Acetaminophen Dosage Chart by Weight (2025)
| Weight (lbs) | Weight (kg) | Dose (mg) | Liquid 160mg/5mL | Frequency |
|---|---|---|---|---|
| 6–11 lbs | 2.7–5 kg | 40 mg | 1.25 mL | Every 4–6 hrs |
| 12–17 lbs | 5.4–7.7 kg | 80 mg | 2.5 mL | Every 4–6 hrs |
| 18–23 lbs | 8.2–10.4 kg | 120 mg | 3.75 mL | Every 4–6 hrs |
| 24–35 lbs | 10.9–15.9 kg | 160 mg | 5 mL | Every 4–6 hrs |
| 36–47 lbs | 16.4–21.4 kg | 240 mg | 7.5 mL | Every 4–6 hrs |
| 48–59 lbs | 21.8–26.8 kg | 320 mg | 10 mL | Every 4–6 hrs |
| 60–71 lbs | 27.3–32.3 kg | 400 mg | 12.5 mL | Every 4–6 hrs |
| 72–95 lbs | 32.7–43.2 kg | 480 mg | 15 mL | Every 4–6 hrs |
Frequently Asked Questions
How often can I give infant Tylenol?
Acetaminophen can be given every 4–6 hours as needed. Do not give more than 5 doses in 24 hours. Always wait at least 4 hours between doses. If fever or pain persists after 3 days, consult your pediatrician. Do not exceed the maximum daily dose — for children, this is 75 mg/kg/day or 4,000 mg/day (whichever is lower).
Is children's Tylenol the same concentration as infant Tylenol?
Yes — since 2011, Johnson & Johnson reformulated both infant drops and children's liquid suspension to the same concentration: 160 mg per 5 mL. Previously, infant drops were more concentrated (80 mg/0.8 mL), which caused dosing confusion. Today, all liquid acetaminophen products for children use the standardized 160 mg/5 mL concentration, which significantly reduces overdose risk.
Can I give Tylenol to a newborn?
Do not give acetaminophen to infants younger than 12 weeks (3 months) old without specific guidance from a doctor. Newborns and very young infants process medications differently and are at higher risk of side effects. If your baby under 3 months has a fever (rectal temperature above 100.4°F / 38°C), this is a medical emergency — call your pediatrician or go to the emergency room immediately.
What if I accidentally gave too much Tylenol?
Acetaminophen overdose is serious — it can cause liver damage even without immediate symptoms. If you suspect your child received too much acetaminophen, call Poison Control immediately at 1-800-222-1222 (US) or go to the nearest emergency room. Do not wait for symptoms to appear. Early treatment is critical and can prevent serious liver damage.
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