Canada.com: Senior's heart meds seized by overzealous airport security Note that this occurred at a screening checkpoint, not a customs inspection. This was prior to a domestic Canadian flight. From my personal experience: A couple years ago I was hospitalized for 5 weeks with various issues. Part of my evaluation before I was finally released was my ability to follow prescription instructions and count & sort pills out into those seven-day containers. People are encouraged and instructed to do this by their medical providers. At the time I was taking almost 30 pills a day from ~10 prescriptions. It is very difficult for the average person to take this amount of medications reliably directly from the prescription bottles.