Augmentin 228 Dose Calculator
Use this page when the bottle or search says Augmentin 228. It explains the specific 200 mg/28.5 mg per 5 mL formulation and sends you to the main Augmentin calculator with the matching amoxicillin strength selected.
Use the prescribed plan first
Accuracy boundary
The formula and example are for concentration conversion after a clinician has chosen the dose. The linked calculator still requires weight entry and final clinical verification.
Quick answer
- Augmentin 228 contains 200 mg amoxicillin plus 28.5 mg clavulanate per 5 mL.
- The parent calculator uses the amoxicillin component for mL conversion, so this preset uses 200/5.
- Do not swap Augmentin 228 with 457 or ES-600 by the same mL amount.
- Confirm the prescribed mg/kg/day target before using any calculator result.
Augmentin 228 formula
mL per dose = amoxicillin mg per dose / 40 mg per mL. The 40 mg per mL comes from 200 mg amoxicillin in 5 mL.
- Calculate the daily amoxicillin target first, then divide by the number of doses per day.
- Keep clavulanate exposure in view when the prescription or local pathway specifies a formulation.
Augmentin 228 quick conversion
Worked example
- Example only: a 20 kg child has a prescribed Augmentin plan of 45 mg/kg/day divided twice daily.
- 20 kg x 45 mg/kg/day = 900 mg/day of the amoxicillin component.
- 900 mg/day / 2 doses/day = 450 mg amoxicillin per dose.
- 450 mg / 40 mg per mL = 11.25 mL per dose of Augmentin 228.
Safety checks before measuring
- Use the exact bottle strength in hand before measuring.
- Do not interchange 228, 457, and ES-600 formulations without prescriber review.
- Give with food when recommended and use a marked oral syringe.
Frequently asked questions
It refers to 200 mg amoxicillin plus 28.5 mg clavulanate per 5 mL, for a total labeled strength of 228.5 mg per 5 mL.
Use 200/5 for the amoxicillin component, then verify the formulation and clavulanate exposure against the prescription.