I was going to ask the same question.
We are going on the Carnival Triumph to Canada.
My dad is on a lot of medication and was planning on packing in those little weekly pill containers. Then he heard that he has to bring the original bottles, so our TA called Carnival and they also said to bring the original bottles. They would need to pack another carryon just for his drugs (they get them in huge 3-month supply bottles and he takes like 25 different pills!)
He was thinking that if he brought a list with his medications and prescription numbers, that may be ok...but he can't risk it, as he can't be without his meds.
Has anyone had any problems packing their meds in another container?