I don't know anything about it--but the doctors will tell you not to give a child anything YET--as much as you want to. And you never know, he might not get sick again! My 5 yr. old PANICS when she throws up, she was sick all night LAST SUnday night, and I didn't give her anything, as much as we both wanted her to have something!! If he has eaten something that hasn't agreed with him, he needs to get it out!!