Hi mikem1034, welcome to Psych Central!

I've done only a little international traveling myself and I wasn't carrying any real meds. I did do quite a bit of research on how to get my vitamins, shampoo, trail mix and other suspicious items through customs and security in both directions.

What I mostly found was that regulations vary from country to country. There are separate authorities (with separate regulations) in charge of security (what you can and can't bring on the plane) and customs (what you can and can't bring into the country). I gather that meds are going to be a customs concern rather than a security one; the TSA site, for instance, makes no mention of them (besides cautioning against marijuana). You should probably check the international-visitor websites of all the countries you expect to be entering. I remember reading that to enter the particular country where I was going and/or re-enter the US, I had to have my vitamins in their original labeled containers and (I think) copies of any prescriptions if I'd been bringing any in. That's just an example.

I found that I quite enjoyed knowing that I'd done my research the best way I knew how and didn't have anything to hide. I wouldn't be surprised if the customs people picked up on this at the checkpoints, because they let me through with very few questions. I learned only afterwards that customs people "hate" bags of ground coffee in baggage because it's so often used to hide contraband from drug-sniffing dogs. I'd had coffee in my checked baggage but it didn't even occur to me to mention it among the examples of food I was bringing in.