Acetaminophen 80 mg / 1 mL (drops) Dosage Calculator

How to Calculate Acetaminophen 80 mg / 1 mL (drops) Dose

This calculator determines a safe acetaminophen dose for children ≥ 3 months based on weight, using a concentration of 80 mg/mL:

Dose Range in mg:

Min Dose (mg) = Weight (kg) × 10 mg/kg (max 800 mg)

Max Dose (mg) = Weight (kg) × 15 mg/kg (max 800 mg)

Volume in mL:

Dose (mL) = Dose (mg) ÷ 80 mg/mL

Max Daily Dose:

Max Daily (mg) = Weight (kg) × 75 mg/kg (max 4000 mg)

Where:

Weight: Child’s weight in kg or lb (converted to kg).
Concentration: 80 mg/mL (fixed for drops).

For weight ≥ 80 kg, use 10 mL (800 mg) per dose, max 50 mL/day. ⚠️ Always consult a healthcare provider.

Using the Acetaminophen 80 mg / 1 mL (drops) Dosage Calculator

Enter the child’s weight and select kg or lb. The calculator provides a dose range (mL and mg) for children ≥ 3 months, capped at safe maximums.

Example: Weight 10 kg:

Pediatric ≥ 3 months:
1.3 mL (100 mg) to 1.9 mL (150 mg) po every 4 to 6 hours to a maximum of 5 doses per day prn
Max daily dose: 9.4 mL/day (750 mg/day)

Usual adult dose:
325 to 650 mg/dose po every 4 to 6 hours prn (max 4 g/24 hrs)

⚠️ Calculations must be re-checked...

Consult a healthcare provider before administering.

Frequently Asked Questions (FAQ)

1. What is acetaminophen used for in children?

Acetaminophen treats fever and mild to moderate pain in children ≥ 3 months.

2. How often can acetaminophen be given?

Every 4–6 hours as needed, up to 5 doses in 24 hours.

3. Can this be used for infants under 3 months?

No, consult a doctor for infants under 3 months.

4. What if weight is in pounds?

Select 'lb' and the calculator converts to kg automatically.

5. What’s the maximum dose for adults?

325–650 mg/dose, max 4000 mg/day.