Never cruised with it, and it has been FDA approved for less than a year, so there probably aren't too many people who could answer that question for you.  However, I am a licensed pharmacist, and my recommendation to you would be to make sure it has the most current prescription label on it.(ie, not a bottle from several months ago),-- definitely do not bring it unlabeled or transferred into another container, and, if you want to be paranoid about it, a letter from your physician stating that y