when the boys are on antibiotics, i give them lots of probiotics. One Nature's Way Primadophilus for kids in the morning (3 billion CFU), one Culturelle in the afternoon (10 billion CFU) and One Nature's Way Primadophilus for kids at night (3 billion CFU). The Culturelle usually does nothing for them, but when on antibiotics, the Culturelle makes their poops and tummies work completely normal.
blessings,
missa