Flying and borders

Getting your medicines through security and across a border

This is the part of a travel first-aid kit that has nothing to do with health and everything to do with rules. Two of them matter: the cabin liquid rule, which has a medical exemption most people do not know about, and the destination's import rules, under which something you buy off a shelf at home can be a controlled substance on arrival.

The liquid rule, and the exemption

The familiar limit — small containers, one transparent bag — applies to liquids, gels, creams and sprays. Medication is treated differently: liquids, gels and cooling elements for medical use may exceed the usual container size. That is an exemption from the size limit, not from the check.

  • Take it out of the bag and present it separately at the scanner, like a laptop.
  • Keep it in its original labelled packaging so it identifies itself without a conversation.
  • Carry the supporting documentation — a prescription copy or a doctor's letter — even where nobody asks for it.
  • Expect the exempt items to be screened individually. Build ten minutes into your plan for it.
  • Anything not medical stays under the ordinary limit, including hand sanitiser and insect repellent.

Needles, devices and cooled medication

Injection devices, needles and sharps are permitted in cabin baggage together with the medication they are for and supporting documentation. Cool bags, gel packs and cooling elements for medical use are treated the same way. None of this is unusual for the people doing the screening — a letter that names the traveller and the medication is what turns it into a thirty-second stop.

  • Tell the officer before the bag goes through, rather than after it has been pulled aside.
  • A doctor's letter listing everything by generic name covers devices, liquids and cooling in one document.
  • Never put the only supply in the hold, whatever the queue looks like.
  • For anything electronic that supports a medical device, check the airline's own rules on batteries as well.

Where an everyday remedy is a controlled substance

This is the part that catches people out, and it has nothing to do with how the medicine is regarded at home. Several countries control substances that sit openly on a European shelf, and the penalties are real. Naming them here is a warning, not a recommendation — and the destination's own authority is the only source that settles it.

Japan

Some cold and sinus remedies containing pseudoephedrine or codeine are prohibited outright, regardless of a prescription. Larger quantities of ordinary medication need an import certificate (Yakkan Shoumei) arranged before travel.

United Arab Emirates and the Gulf states

A published controlled list that includes codeine and tramadol among others. Prior approval and a certified prescription are required, and arriving without them is treated as a criminal matter rather than a paperwork one.

Singapore

Prior authorisation is required for several classes of medication that need no prescription elsewhere. The application is straightforward and has to be made before you fly.

Everywhere else

There is no shortcut and no regional pattern — the rules are national and change. The International Narcotics Control Board publishes a country-by-country summary for travellers carrying medicines, and the destination's embassy has the final word.

Buying something after security does not exempt it. Duty-free is subject to the destination's import rules exactly like anything else in your bag.

Entry requirements

Carrying controlled medication inside Schengen

For your own controlled medication across a Schengen border there is a specific document: the certificate issued under Article 75 of the Schengen Implementing Convention. Your own country's authority issues it — in Germany the Federal Institute for Drugs and Medical Devices — your doctor completes it, and it is valid for a limited period per journey. It is the reason this is a form-filling exercise rather than a problem. Outside Schengen it does not apply and the destination's own rules take over.

The four documents worth carrying

  1. A copy of the prescription for anything prescribed.
  2. A doctor's letter listing what you take by generic name, with the condition described in general terms — this is the document that does the most work.
  3. The Article 75 certificate for controlled medication inside Schengen, or the destination's equivalent authorisation outside it.
  4. Your insurance details and, within Europe, your EHIC or GHIC — which is not a substitute for insurance.

Questions

Yes. Medication is exempt from the container-size limit that applies to ordinary liquids, and that includes gels and cooling elements for medical use. Present it separately, keep it in its labelled packaging and carry documentation — the exemption is from the size rule, not from the screening.

Official sources

Everything on this page that is a rule rather than an opinion comes from one of these. They are all official, none of them sell anything, and if one of them disagrees with us, it is right.

packset.travel is an independent trip-planning tool, not a pharmacy or a medical service. This page is about packing — what form things travel in, which bag they belong in and what paperwork crosses a border. What actually goes in each slot is a question for your pharmacist or doctor, and the official sources linked here have the last word.