are you saying the baby passed stool on the 5th day for the first time???
If it is correct, then its not normal. Normally babies pass stool within 48 hrs of delivery mostly within first 12 hrs. passage of stool after 48-72 hrs is pathogenic. did your child had abdominal distension and vomiting? The sachet may be a pro-biotic!!!
i would suggest to check the baby with the pediatrician
or a pediatric surgeon if the baby is having alternate constipation
, abdominal distension and diarrhea
. he may be suffering from hirschsprungs disease..