Hi Doctor, My Child (6.2 Years Old) Vomited Last Night.

Hi Doctor, my child (6.2 years old) vomited last night. We gave him Ondem syrup 6 ml (Emeset was not available with chemist). Should we continue with the same or switch to Emeset. Also, if we continue, given my child's age, what should be the dosage? Please advise. Thank you, XXXX