This calculator determines the Loperamide dose for treating diarrhea, using a concentration of Loperamide 1 mg/7.5 mL (0.1333 mg/mL), based on the patient’s age group:
Dose in mL and mg (based on Loperamide):
Age 2 to 5 years:
Age 6 to 8 years:
Age 9 to 11 years:
Age ≥12 years and adults:
Where:
Not recommended for management of infectious diarrhea. Use the lowest effective dose for the shortest duration. ⚠️ Always consult a healthcare provider, and consider dosing by weight range for patients small for their age.
Choose the patient’s age group and click "Calculate." The calculator provides the dose in mL and mg (Loperamide) based on the selected age group for diarrhea treatment.
Example: Age 2 to 5 years:
Dosage: Initial: 7.5 mL (1 mg) with first loose stool followed by 7.5 mL (1 mg) after each loose stool for a max daily dose of 22.5 mL/day (3 mg/day) Calculations must be re-checked and should not be used alone...
Consult a healthcare provider before administering, and use the lowest effective dose for the shortest duration.
Loperamide (Imodium) is used to treat diarrhea, including acute and chronic diarrhea.
Dosing varies by age group: Initial dose with first loose stool, followed by additional doses after each loose stool, with maximum daily doses ranging from 22.5 mL/3 mg/day (ages 2–5 years) to 120 mL/16 mg/day (adults).
Consult a doctor, as Loperamide is not typically recommended for children under 2 years without medical supervision.
The maximum daily dose for adults (≥12 years) is 120 mL (16 mg/day).