Dose will depend on purpose of dosage (what infection the child has). And this is AUGMENTIN DDS…will require less quantity than usual. Mild infection will require 20 mg/kg/d divided in 2-3 doses, while severe infection will require approx 40 mg/kg/d divided into 2-3 doses. Decide accordingly.
You need to specify the nature of infection before giving antibiotics eg. Acute otitis media/ URTI/ Pneumonia etc…