Taking Medication Through Airport Security

Before travelling, check three separate sets of requirements:

- Airport security: look at your departure airport’s guidance on medicines, liquids and medical equipment. Check connecting and return airports too; screening procedures can differ. - Airline requirements: contact your airline if you need extra cabin baggage for medical supplies, will use equipment during the flight or need help carrying it. Do not assume an additional medical bag is automatically included. - Entry restrictions: check the destination’s embassy or government guidance for your medicine’s active ingredient, permitted quantity and required documents. Check transit-country rules where applicable.

Some medicines available routinely in the UK are restricted elsewhere. Controlled drugs may require additional documentation or permission. Consult current GOV.UK guidance on travelling with controlled medicines, and allow time to arrange any necessary paperwork.

Keep medicines you need during the journey in your hand luggage rather than relying on access to a checked suitcase. Where permitted, carry enough for your trip and a sensible reserve for delays, agreed with your pharmacist or prescriber and within destination restrictions.

Keep medicines in their original labelled packaging where possible. This helps staff identify them and link prescriptions to the traveller. Carry a prescription copy or a clinician’s letter listing the medicine, its generic name and your relevant medical equipment. Check whether your destination requires a particular document format or translation.

For UK security alone, you do not normally need prescription evidence for tablets or liquid medicines in containers of 100ml or less. Overseas entry requirements can still require it.

Keep documents accessible, with an offline copy if you also store them on your phone. If someone else carries your medicines, check any rules about travelling together and carrying medicines on another person’s behalf.

Essential liquid medicines can pass through UK airport security in containers larger than 100ml, even where the usual liquids restriction applies. For medicines in containers larger than 100ml, UK guidance requires proof that they are prescribed to you, such as a prescription copy or a doctor’s letter.

Keep these medicines accessible and tell security staff about them before screening. Staff may need to open or screen containers separately. Follow the instructions at your airport rather than assuming every terminal uses the same process.

Do not decant prescription medicine simply to fit it into a smaller bottle. Keeping the dispensing label and original container helps with identification and correct use.

If you need a non-prescription liquid medicine above the airport’s normal container limit, ask the airport what evidence and arrangements it requires before travelling. For medicines that need cooling, ask your pharmacist about suitable storage and check the airport’s rules for cooling packs. Do not assume aircraft refrigeration will be available.

Necessary medical equipment, including hypodermic syringes, can be carried through UK airport security, but it must undergo appropriate checks. Bring supporting documentation explaining why you need needles, syringes or specialist devices. Protect needles and plan how you will dispose of used sharps safely during the journey.

For an insulin pump, continuous glucose monitor or another attached device, read the manufacturer’s screening instructions before travelling. Some devices have restrictions involving X-ray equipment or body scanners. Tell security staff about the device before screening and ask for an appropriate alternative if the manufacturer advises against a particular method. Do not disconnect or remove it without following your clinical and manufacturer guidance.

Contact the airline separately about using powered medical equipment on board and carrying its batteries. Oxygen arrangements also need advance discussion with the airline.

If you need assistance reaching or moving through the airport, arrange it ahead of your journey. For a Manchester departure, the [Manchester special assistance guide](/guides/manchester-airport-special-assistance) explains the practical steps.

Before joining the queue, make sure you can reach your medicines, documents and equipment without unpacking your whole bag. Tell a security officer about larger liquid medicines, needles and any device that needs a different screening method before putting items into trays.

Explain any handling or storage concerns before checks begin. If discussing a condition in the queue would be uncomfortable, ask whether a private conversation or screening arrangement is possible. Medicines and equipment are not automatically exempt from inspection.

Allow extra time if you expect additional checks, while following your airline’s check-in and boarding deadlines. If you are departing from Heathrow, use the [Heathrow check-in and security guide](/guides/heathrow-departure-arrival-check-in-security-guide) to plan the wider airport journey.

Before leaving the checkpoint, check that you have collected every medicine, device, cooling pack and supporting document.

Ask your pharmacist or prescriber how to manage doses across time zones and what to do if a flight is delayed. Do not change your dose or schedule based only on your flight itinerary.

Check the medicine’s storage instructions throughout the journey, including time in the terminal and transport after landing. Keep essential supplies with you if cabin baggage is unexpectedly taken for loading into the hold, and tell airline staff about any medical equipment or batteries inside.

Keep packaging and paperwork for your return flight. An exemption accepted at a UK airport does not establish the rules at an overseas checkpoint. Recheck local airport guidance before flying home, especially if you have obtained replacement medicine abroad.