Amoxicillin 400mg/5ml
Dosage Calculator for Children
Calculate safe amoxicillin dosage for children based on weight and infection severity.Used by 500K+ parents • Pediatrician-approved guidelines
Important Medical Disclaimer
This calculator is for educational purposes only. Always consult your pediatrician or healthcare provider before administering medication. Individual dosing may vary based on medical history and other factors.
Amoxicillin Dosage Calculator
Calculate safe pediatric dosage for 400mg/5mL suspension
Patient Information
Recommended range: 3-40 kg
Ready to Calculate Safe Dosage?
Enter your child's weight and infection details to get accurate amoxicillin dosing
How the Amoxicillin Dosage Calculator Works
Calculate safe pediatric dosage in 3 simple steps
1. Enter Child's Weight
Input your child's current weight in kilograms for accurate dosing calculations
2. Select Frequency & Severity
Choose dosing frequency and infection severity as prescribed by your doctor
3. Get Safe Dosage
Receive precise mL dosage and timing instructions for 400mg/5mL suspension
What Is Amoxicillin 400mg/5ml?
Understanding pediatric amoxicillin suspension and its uses
Antibiotic Type
Amoxicillin is a penicillin-type antibiotic that fights bacterial infections in children.
Suspension Form
400mg/5mL means 400 milligrams of amoxicillin in every 5 milliliters of liquid.
Common Uses
Treats ear infections, strep throat, pneumonia, and other bacterial infections.
Treatment Duration
Typical courses range from 7-10 days. Complete the full course as prescribed.
Standard Pediatric Dosage Guidelines
Understanding mg/kg dosing and weight-based calculations
Dosage Reference Table
Standard amoxicillin dosing by infection severity
| Infection Severity | Dosage (mg/kg/day) | Typical Frequency | Example (20kg child) |
|---|---|---|---|
Mild Infections | 25 mg/kg/day | Twice daily (every 12h) | 6.25 mL every 12h |
Moderate Infections | 45 mg/kg/day | Twice daily (every 12h) | 11.25 mL every 12h |
Severe Infections | 90 mg/kg/day | Twice daily (every 12h) | 22.5 mL every 12h |
Important Calculation Notes
- 400mg/5mL concentration = 80mg per 1mL
- Always round to the nearest 0.1 mL for practical dosing
- Maximum single dose should not exceed 1000mg (12.5 mL)
- Consult pediatrician for children under 3 months or over 40kg
Real-Life Dosing Example
See how the calculator works with a practical scenario
Patient Scenario
Calculation Results
Parent Instructions
"Give Sarah 11.25 mL of amoxicillin suspension every 12 hours (morning and evening) for the prescribed duration. Use the oral syringe provided for accurate measurement."
Remember to shake the bottle well before each dose and complete the full course even if Sarah feels better.
Common Mistakes in Measuring Antibiotic Doses
Avoid these frequent dosing errors to ensure safe and effective treatment
Wrong Measuring Tool
Using kitchen spoons instead of medical syringes or cups
✓ Use oral syringe or medicine cup
Missed Doses
Skipping doses or irregular timing reduces effectiveness
✓ Set reminders for consistent timing
Early Discontinuation
Stopping when child feels better, not completing course
✓ Complete full prescribed duration
Not Shaking Suspension
Forgetting to shake leads to uneven medication distribution
✓ Shake well before each dose
Recommended Health Essentials
Essential tools for accurate medication administration and child health monitoring
Oral Syringe for Medicine
- Precise measurement markings
- Safe for children, BPA-free
Digital Thermometer for Kids
- Fast 10-second readings
- Fever alarm and memory recall
Children Medicine Measuring Cup
- Clear mL and tsp markings
- Easy-grip design for parents
Frequently Asked Questions
Common questions about amoxicillin dosing and pediatric antibiotic use
Safety Information
Important safety guidelines for amoxicillin use in children
Side Effects to Watch For
Common (Contact doctor if severe)
- • Diarrhea or loose stools
- • Nausea or vomiting
- • Stomach upset
- • Mild skin rash
Serious (Seek immediate care)
- • Severe allergic reaction (hives, swelling)
- • Difficulty breathing
- • Severe diarrhea with blood
- • Persistent vomiting
Important Reminders
Complete the Course
Take all doses even if child feels better to prevent resistance
Storage
Refrigerate suspension, discard after 14 days
Allergies
Inform doctor of any penicillin allergies before use
Need Safe Amoxicillin Dosing for Your Child?
Use our medical-grade calculator for accurate pediatric dosing based on current weight and infection severity
Medical Disclaimer
This calculator is for educational purposes only and should not replace professional medical advice. Always consult your pediatrician or healthcare provider before administering medication to your child. Individual dosing may vary based on medical history, other medications, kidney function, and specific medical conditions. In case of emergency or severe allergic reaction, seek immediate medical attention.
Last Updated: October 2025