The golden rule is simple: check the destination country’s laws, not just the airline’s. What’s sold over-the-counter in London might require a prescription in Tokyo (like some decongestants). A quick visit to the embassy website or a trusted travel health app can save you from a sticky conversation at border control.
Pro tip: Always keep medications in their original packaging. That half-empty bottle of Advil looks innocent to you, but to a customs officer, it’s a mystery bottle. Stickered labels with your name and dosage? Even better.
