food for thought ... not a recommendation ... just the way I look at it, and what I do (but I was in the interdiction business for 30 years . . .)
- over the counter stuff and vitamins are not (IME) "medications"
IME unless you have some of the hard core pain killers you won't have a problem with a 'pill minder' as that's what I typically use
BUT
if you DO have some of the hard stuff, Percocet or oxycodone, I'd definitely keep it in the original container .... or have a photo copy of the label 'proving' the perscription
there is an issue of 'quantity' as well. If you bring a 7 day supply for a seven day cruise you'll seldom have an issue. If you bring a two year supply for the same cruise ... questions could come up.
Lastly ..... I doubt you'd ever have a problem at boarding time .... I've never heard of such a thing b4. BUT
IF you were selected for a random search by Customs on return
AND were holding say 90 oxy tabs without the prescription label you just might have a very serious problem
*****
on a recent trip, cruise and land, in EU for a month, I carried all the 'real' bottles for the prescriptions and despite going thru "customs" several times, was never asked to show proof of anything . . . but all I had was cholesterol and bp meds . . .
******
I'm not sure what drugs dogs detect ... but if I had a prescription for an opiate or medical MJ I would FOR SURE carry that in the official container and as much documentation as I could muster!!!!