New2this, Carnival, or any cruise line for that matter, is NOT the issue. It is customs and immigration that will intercept and question any DRUGS coming in or out of a country. A person may be lucky and slip through no problem, but they could also be the "one" that gets pulled out of line and searched and technically ALL prescription drugs are to be in there original containers. It's not worth taking a chance on your vacation. As I've stated it really has nothing to do with the cruise line, and anyone who wants the correct information should contact the department of Customs and Immigration, its everyones responsiblily to know the laws regarding what they can and cannot do.