Inclusion Criteria:  Age group for six months - 5 years. No or mild to moderate dehydration. Alert patient (to tolerate oral intake since the drug is only available in oral form).  Exclusion Criteria:  Patients with severe dehydration (inability to drink because of drowsiness). Patients with any serious concomitant illness that needs antibiotic treatment. If severe adverse events occur at any time. Chronic diarrhea.