I've only travelled to the UK and Europe but I took my meds w/ me in my carry on luggage. They questioned if my hot water bottle was empty (I had to pull it out so they could check it) and looked funny at my electrical adapters (yep - another bag search!!) but didn't even question my big plastic bag o' drugs in my backpack. I made sure all my drugs were in their original bottles w/ the script
, pharmacy, and dr's info on them. I know that others have taken liquid meds w/ them w/ no problems. Hopefully someone who has done more travelling than I and someone who has travelled w/ liquid meds will chime in.