Amoxicillin 400 mg / Clavulanate 57 mg per 5 mL (suspension) Dosage Calculator

How to Calculate Amoxicillin 400 mg / Clavulanate 57 mg per 5 mL (suspension) Dose

This calculator determines the dose for treating bacterial infections using a concentration of 400 mg Amoxicillin and 57 mg Clavulanate per 5 mL (80 mg/mL Amoxicillin, 11.4 mg/mL Clavulanate), based on the patient’s weight and selected dose (25 or 45 mg/kg/day, BID):

Dose in mg and Volume in mL:

Daily Dose (mg) = Weight (kg) × Dose (mg/kg/day)

Per Dose (mg) = Daily Dose ÷ 2 (BID)

Volume (mL) = Per Dose (mg) ÷ 80 mg/mL (Amoxicillin component)

Where:

Weight: Patient’s weight in kg or lb (converted to kg, minimum 1 kg).
Dose Selection: 25 mg/kg/day or 45 mg/kg/day (BID, twice daily).
Concentration: 80 mg/mL Amoxicillin and 11.4 mg/mL Clavulanate.

For adults (weight ≥ 40 kg), use 1 tablet (Amoxicillin/Clavulanate 875mg/125mg) every 12 hours. Administer for 7–10 days, or as directed. ⚠️ Always consult a healthcare provider.

Using the Amoxicillin 400 mg / Clavulanate 57 mg per 5 mL (suspension) Dosage Calculator

Enter the patient’s weight, select the dose (25 or 45 mg/kg/day, BID). The calculator provides the dose range in mL and mg per dose for pediatric patients (> 3 months) or adults.

Example: Weight 30 kg, 25 mg/kg/day BID:

Pediatric ≥ 3 months:
4.7 mL (375 mg Amoxicillin / 53.4 mg Clavulanate) po every 12 hours

Adult Dose:
1 tablet (Amoxicillin/Clavulanate 875mg/125mg) every 12 hours

⚠️ This tool is for information purposes only...

Consult a healthcare provider before administering.

Frequently Asked Questions (FAQ)

1. What is Amoxicillin/Clavulanate used for?

It treats bacterial infections such as sinusitis, pneumonia, and skin infections, often when resistance to Amoxicillin alone is suspected.

2. How often can it be given?

Dosing is BID (twice daily) for 7–10 days or as prescribed.

3. Can this be used for infants under 3 months?

Consult a doctor, as dosing for infants under 3 months may differ (e.g., caution or lower doses).

4. What if weight is in pounds?

Select 'lb,' and the calculator converts to kg automatically.

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

Typically 1,750 mg Amoxicillin / 250 mg Clavulanate per day (2 tablets of 875mg/125mg), but follow a healthcare provider’s guidance.