How to Calculate Cefadroxil 125 mg/5 mL (suspension) Dose

This calculator determines the Cefadroxil dose for treating bacterial infections, using a concentration of Cefadroxil 125 mg/5 mL (25 mg/mL), based on the patient’s weight and dosage regimen:

Dose in mg and Volume in mL (based on Cefadroxil component):

Volume Calculation:

Where:

• Weight: Patient’s weight in kilograms (minimum ~5 kg for pediatric ≥ 1 month).
• Dosage Regimen: 30 mg/kg/day BID (maximum 2 g/day).
• Concentration: Cefadroxil 25 mg/mL (125 mg/5 mL).

For adults, the usual dose is 1000 to 2000 mg po per day (as a single dose or 2 divided doses). Administer for 7–10 days, or as directed. ⚠️ Always consult a healthcare provider.

Using the Cefadroxil 125 mg/5 mL (suspension) Dosage Calculator

Enter the patient’s weight, select the dosage regimen (30 mg/kg/day BID). The calculator provides the dose in mL and mg per dose for pediatric patients (≥ 1 month) or adults.

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

Pediatric ≥ 1 month:
15 mL (375 mg) PO BID

Adults:
Usual dose is 1000 to 2000 mg po per day (as a single dose or 2 divided doses)

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

Consult a healthcare provider before administering.

Frequently Asked Questions (FAQ)

1. What is Cefadroxil used for?

Cefadroxil treats bacterial infections, including skin infections, urinary tract infections, and respiratory infections.

2. How often is this given?

Pediatric: Twice daily (BID), 30 mg/kg/day (maximum 2 g/day). Adults: Once or twice daily, 1000 to 2000 mg per day (as a single dose or 2 divided doses).

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

Consult a doctor, as Cefadroxil is not typically recommended for infants under 1 month without medical supervision.

4. What if weight is in pounds?

This calculator accepts only kilograms, but you can convert pounds to kilograms (1 lb = 0.4536 kg) before entering the weight.

5. What’s the adult dose?

1000 to 2000 mg po per day (as a single dose or 2 divided doses).