Good timing. I was talking with one of our peds EM guys about this today. He was under the impression that there is actually a black box warning about ibuprofen in kids < 6mo. A thorough search of the FDA website, though, came up empty. All the other studies I looked at on a lit search today either mentioned a non-statistically significant number of complications or only included kids > 6 mo. Definitely still safer not to use it in those little ones, from what I've read.