I carry-on my vitamins in a 7-day pill container. No problem. I take a multiple vitamin, C/E combined, calcium, glucosamine, and (when cruising) ginger supplement. Anything over-the-counter (items in my "first aid" kit) I also carry on and don't worry about. They, such as Bonine, Imodium and allergy-sinus medications, have always had a "label" on the back of the foil package. When I travel anywhere I need prescription medicine, such as anti-malarial, <I>then</I> I always carry it in the original container along with a copy of my prescription.