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Loperamide 1 mg/7.5 mL Dosage Calculator (Brand Name: Imodium)

Not recommended for management of infectious diarrhea. Use the lowest effective dose for the shortest duration.

Consider dosing by weight range not by age group for patients who are small for their age.

Loperamide 1 mg / 7.5 mL

Doses expressed in terms of Loperamide

How to Calculate Loperamide 1 mg/7.5 mL Dose

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:

  • Initial: 7.5 mL (1 mg) with first loose stool
  • Followed by 7.5 mL (1 mg) after each loose stool (max daily dose 22.5 mL/3 mg/day)

Age 6 to 8 years:

  • Initial: 15 mL (2 mg) with first loose stool
  • Followed by 7.5 mL (1 mg) after each loose stool (max daily dose 30 mL/4 mg/day)

Age 9 to 11 years:

  • Initial: 15 mL (2 mg) with first loose stool
  • Followed by 7.5 mL (1 mg) after each loose stool (max daily dose 45 mL/6 mg/day)

Age ≥12 years and adults:

  • Initial: 30 mL (4 mg) with first loose stool
  • Followed by 15 mL (2 mg) after each loose stool (max daily dose 120 mL/16 mg/day)

Where:

  • Age Group: Select the appropriate age group (2 to 5 years, 6 to 8 years, 9 to 11 years, or ≥12 years and adults).
  • Concentration: Loperamide 1 mg/7.5 mL (0.1333 mg/mL).

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.

Using the Loperamide 1 mg/7.5 mL Dosage Calculator

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.

Frequently Asked Questions (FAQ)

1. What is Loperamide used for?

Loperamide (Imodium) is used to treat diarrhea, including acute and chronic diarrhea.

2. How often is this given?

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).

3. Can this be used for children under 2 years?

Consult a doctor, as Loperamide is not typically recommended for children under 2 years without medical supervision.

4. What’s the maximum daily dose for adults?

The maximum daily dose for adults (≥12 years) is 120 mL (16 mg/day).

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