Travel preparation
Travelling with prescribed medical cannabis from the UK
A UK prescription does not create permission to carry medical cannabis into another country. Destination and transit-country laws must be checked before every trip.
The rule that matters most
The Home Office says other countries have their own import laws for prescription medicines and controlled drugs. It warns that travellers could face a fine or imprisonment if a medicine is illegal at the destination, and directs travellers to check with the relevant embassy before travelling.
Check destination and transit countries separately
- Is the medicine permitted for a visitor’s personal medical use?
- Is prior approval, an import permit or a translated document required?
- Are there product, cannabinoid, formulation, quantity or duration limits?
- Must the medicine be declared at the border?
- Do the same rules apply during an airport connection without entering the country?
Keep a dated copy of the official response or government page. Rules can change, so repeat the check for a future trip.
Prepare evidence that the medicine is yours
GOV.UK says a person leaving the UK with a controlled-drug medicine should be able to prove it is theirs with a prescription or clinician letter. Home Office guidance recommends that a letter records the traveller’s name, medicine, dose, strength and frequency, and includes the prescriber’s signature and professional registration details.
- Original dispensing packaging and readable label.
- Copy of the current prescription.
- Clinician letter matching the trip dates and quantity.
- Photo identification matching the prescription and label.
- Any destination or transit permit, approval or translation.
Quantity, timing and supply
Carry only the amount lawfully prescribed and permitted for the trip. Home Office guidance notes that many controlled drugs are not normally prescribed in quantities greater than one month’s supply, while the rules for entry to the UK include specific personal-import limits. A UK rule does not override a stricter destination limit.
Plan early enough for the clinic, pharmacy, embassy and any permit process. Do not post controlled-drug medicine to yourself abroad.
Airports, airlines and hand luggage
GOV.UK instructs travellers to carry controlled-drug medicine with them in hand luggage when entering or leaving the UK. Airport security and airline requirements are separate from the destination’s import law. Contact the airline and relevant airports when carrying liquids, medical equipment, cooling materials or anything that may need special screening.
Security staff may inspect medicines. Keep documents accessible rather than packed away.
Who to contact—and what to ask
Use the maintained official directories below to find the right authority for the exact itinerary. Do not rely on a copied telephone number, an old email thread or a third-party contact list: contact details and responsibilities can change.
Destination authority
Find the destination’s embassy, high commission or consulate in the UK and ask which government authority decides whether the prescribed controlled drug may enter.
Find foreign missions in the UK →British help abroad
Save the nearest British embassy, high commission or consulate. Consular staff can support British nationals abroad, but cannot grant permission to import a medicine.
Find UK consular services →Airline and airports
Use the airline’s own medical or special-assistance page and each airport’s official security page. Ask about hand luggage, screening, liquids, batteries or cooling equipment.
CAA special-assistance guidance →Clinic and pharmacy
Ask what evidence they can provide, how much notice they need and what to do if medicine is lost or delayed. They cannot confirm another country’s law.
Review the document checklist →Plan the return journey too
Check the law for exporting the medicine from the destination and for every return transit. If medicine is obtained abroad, different rules may apply when bringing it into the UK; UK residents receiving treatment abroad should follow Home Office guidance and contact the Drug and Firearms Licensing Unit where required.
Travel within the UK
Keep the medicine in original labelled packaging, retain evidence of the prescription and keep it under your control. Domestic travel does not remove the duties to possess a controlled drug lawfully, follow the prescription, store it safely and comply with operator or private-property rules. Islands and Crown Dependencies may have separate requirements, so check the relevant authority before travel.
Primary and official sources
Rights and responsibilities
Check the wider situation before travelling.
Use the patient-rights route to connect travel preparation with carrying, storage, evidence and interactions with authorities.