Amoxicillin Pediatric Dose Calculator
Calculate the appropriate amoxicillin dosage for pediatric patients based on weight, indication, and dosing frequency.
How to Use This Calculator
- Enter the child's weight in kilograms
- Select the indication for amoxicillin treatment
- Choose the appropriate amoxicillin concentration
- Select the dosing frequency
- Click Calculate to see the recommended dosage
Formula Used
Dose (mg) = Weight (kg) × Dosage (mg/kg/day)
Where:
- Weight = Patient's weight in kilograms
- Dosage = Recommended dosage based on indication (varies from 20-90 mg/kg/day)
- Volume (mL) = Dose (mg) ÷ Concentration (mg/5mL) × 5
Example Calculation
Real-World Scenario:
A 4-year-old child weighing 18 kg needs treatment for acute otitis media.
Given:
- Weight = 18 kg
- Indication = Acute Otitis Media
- Standard dosage = 80-90 mg/kg/day
- Concentration = 400 mg/5 mL
- Frequency = Twice daily
Calculation:
Daily dose = 18 kg × 85 mg/kg/day = 1530 mg/day
Dose per administration = 1530 mg ÷ 2 = 765 mg
Volume per dose = 765 mg ÷ 400 mg/5mL × 5 = 9.6 mL
Result: 9.6 mL of amoxicillin 400 mg/5 mL twice daily
Why This Calculation Matters
Practical Applications
- Ensures accurate dosing for pediatric patients
- Prevents underdosing which can lead to treatment failure
- Avoids overdosing which can cause adverse effects
Key Benefits
- Standardized dosing based on evidence-based guidelines
- Reduces calculation errors in clinical settings
- Improves treatment outcomes for common pediatric infections
Common Mistakes & Tips
Frequently Asked Questions
References & Disclaimer
Medical Disclaimer
This calculator is for informational purposes only and does not replace professional medical advice. Always consult with a qualified healthcare provider before administering medication to children. Dosages may need adjustment based on individual patient factors, renal function, and specific clinical circumstances.
References
- CDC - Amoxicillin Pediatric Dosing Guidelines - Recommended dosing for common pediatric infections
- American Academy of Pediatrics - Pediatric Antibiotic Stewardship - Evidence-based guidelines for antibiotic use in children
- Merck Manual - Penicillins in Pediatric Patients - Comprehensive information on penicillin use in children
Accuracy Notice
This calculator provides standard dosing recommendations based on current clinical guidelines. Individual patient factors may require dosage adjustments. The maximum daily dose should not exceed 3 grams unless specifically directed by a healthcare provider. This calculator is not appropriate for premature infants, neonates, or children with severe renal impairment.
About the Author
Kumaravel Madhavan
Web developer and data researcher creating accurate, easy-to-use calculators across health, finance, education, and construction and more. Works with subject-matter experts to ensure formulas meet trusted standards like WHO, NIH, and ISO.