bring along a copy of your prescriptions, bring along the label for your vitamins. Use the 7 day pill containers. Bring travel sized orginal bottles of things like Tylenol, Rolaids, Pepto, Bonnie, Benadryl etc. If you are taking any kind of prescription narcotic, definatley bring that in its orginal prescription container. Chances are nothing will happen, but just in case you are asked, you have documentation. Customs really don't care about your daily maintenance medications, its just if you have a large "stash" that would cause them to search.