How to Calculate Polyethylene Glycol 3350 (PEG 3350) Dose

This calculator determines the Polyethylene Glycol 3350 (PEG 3350) dose for treating constipation, based on the patient’s weight for children and a fixed dose for adults:

Dose in grams (based on PEG 3350):

Where:

• Weight: Enter the patient’s weight in kilograms (kg) or pounds (lb) and select the unit from the dropdown (automatically converted to kg).

Administer as prescribed for constipation. ⚠️ Always consult a healthcare provider.

Using the Polyethylene Glycol 3350 (PEG 3350) Dosage Calculator

Enter the patient’s weight in kilograms or pounds, select the unit, and click "Calculate." The calculator provides the dose in grams (PEG 3350) for children (based on weight) and adults (fixed dose).

Example: Weight 25 kg:

Children (Constipation):
Min Dose: 5 g po once daily
Max Dose: 17 g po once daily

Adults (Constipation):
Usual dose is 17 g po once daily

Calculations must be re-checked and should not be used alone...
            

Consult a healthcare provider before administering.

Frequently Asked Questions (FAQ)

1. What is Polyethylene Glycol 3350 (PEG 3350) used for?

Polyethylene Glycol 3350 (PEG 3350) (MiraLAX; RestoraLAX; Lax-A-Day; ClearLax) is used to treat occasional constipation.

2. How often is this given?

Children: 0.2 to 0.8 g/kg/day po once daily (Max 17 g/day). Adults: 17 g po once daily.

3. Can this be used for infants or very young children?

Consult a doctor, as PEG 3350 is not typically recommended for infants or children under 5 years without medical supervision.

4. What if weight is in pounds?

Enter the weight in pounds, and the calculator will automatically convert it to kilograms for calculation (1 lb = 0.4536 kg approximately).

5. What’s the maximum daily dose?

The maximum daily dose is 17 g for both children and adults.