I use a prescription-only fluoridated toothpaste (6 ounce tube) I purchase at the dentist's office. I asked him to write me a prescription specifically for the idiots at TSA; I put the Rx and the toothpaste in a baggie and pack it my carry-on. I've never actually been queried about it, but I'm prepared just in case.

Just how does the TSA propose that one pack only, say, 5 cc of toothpaste anyway? Squeeze out a line in a baggy? How do you pack "only enough pills for the flight" yet keep them in their original labeled Rx containers? Not actually required of course, but some TSOs demand it - perhaps so they can identify the narcotics and have them "surrendered" for their own use?