Metronidazole 200 mg/5 mL Dosage Calculator

How to Calculate Metronidazole 200 mg/5 mL Dose

This calculator determines the Metronidazole dose for treating bacterial and parasitic infections, using a concentration of Metronidazole 200 mg/5 mL (40 mg/mL), based on the patient’s weight and age group:

Dose in mL and mg (based on Metronidazole):

Pediatric ≥ 1 month: 15 to 50 mg/kg/day po TID (Max: 2250 mg/day)

Adults: Usual dose is 500 mg po TID

Where:

Weight: Enter the patient’s weight in kilograms (kg) or pounds (lb) and select the unit from the dropdown (automatically converted to kg).
Age Group: Select the appropriate age group (Pediatric ≥ 1 month or Adults).
Concentration: Metronidazole 200 mg/5 mL (40 mg/mL).

Administer as prescribed for bacterial or parasitic infections. ⚠️ Always consult a healthcare provider.

Using the Metronidazole 200 mg/5 mL Dosage Calculator

Enter the patient’s weight in kilograms or pounds, select the unit, choose the age group, and click "Calculate." The calculator provides the dose in mL and mg (Metronidazole) for pediatric and adult patients.

Example: Weight 10 kg, Pediatric ≥ 1 month:

Pediatric ≥ 1 month:
Min Dose: 1.3 mL (50 mg) po TID
Max Dose: 4.2 mL (167 mg) po TID

Adults:
Usual dose is 12.5 mL (500 mg) po TID

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

Consult a healthcare provider before administering.

Frequently Asked Questions (FAQ)

1. What is Metronidazole used for?

Metronidazole (Flagyl; Metro) is used to treat bacterial infections, parasitic infections, and certain sexually transmitted diseases.

2. How often is this given?

Pediatric ≥ 1 month: 15 to 50 mg/kg/day po TID (Max 2250 mg/day). Adults: 500 mg po TID.

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

Consult a doctor, as Metronidazole 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 for pediatric patients?

The maximum daily dose for pediatric patients (≥1 month) is 2250 mg/day (50 mg/kg/day, capped at 2250 mg).