Don't give any medicine in first 2 days of loose motion
except for Oral Rehydration Solution in proper concentration plus normal liquid or semisolid diet . Most of the time , it's viral in nature & subsides within 2-3 days . But watch for dehydration
( urine output) , high grade fever , vomiting
, alertness , blood in stool
--- these are the few warning signs & need medication .