How to Calculate Rifampin 100 mg/5 mL Dose

This calculator determines the Rifampin dose for treating tuberculosis, using a concentration of Rifampin 100 mg/5 mL (20 mg/mL), based on the patient’s weight for children ≥1 month:

Dose in mL and mg (based on Rifampin):

Where:

• Weight: Enter the patient’s weight in kilograms (kg) or pounds (lb) and select the unit from the dropdown (automatically converted to kg).
• Concentration: Rifampin 100 mg/5 mL (20 mg/mL).

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

Using the Rifampin 100 mg/5 mL Dosage Calculator

Enter the patient’s weight in kilograms or pounds, select the unit, and click "Calculate." The calculator provides the dose in mL and mg (Rifampin) for children ≥1 month, with a maximum dose of 600 mg, ensuring the minimum dose is less than or equal to the maximum dose.

Example: Weight 10 kg:

Tuberculosis (Children ≥ 1 month):
5 mL (100 mg) to 10 mL (200 mg) 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 Rifampin used for?

Rifampin (Rifadin; Rifampicin; Rimactane) is used to treat tuberculosis and other bacterial infections.

2. How often is this given?

Children ≥ 1 month (Tuberculosis): 10 to 20 mg/kg/day po once daily (Max: 600 mg).

3. Can this be used for infants under 1 month?

Consult a doctor, as Rifampin is not typically recommended for infants under 1 month 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 600 mg for children ≥1 month.