it is a good dose of antibiotic. whether its sufficient or not can only be decided afetr 2-3 days, if v get to see some response. ideally if the duration of symptom is for 2 weeks, u need to do a blood culture
& a typhoid fever
test, also an urine examination. & then decide o further treatment based on this but if u already started on treatment, then i suggest you wait for 2 days & see if u feel better or not.