We are often asked… Can you take a medical cannabis prescription abroad?
Here we cover the answer to this question and all the information you need.
The short Answer
- It depends on the country! Before going abroad, check with the country you are visiting. Not all countries allow you to bring your medical cannabis prescription and if you did you could land yourself in a lot of trouble!
- Once you know that the country you are visiting accepts your Medical Cannabis prescription,you then need to check their guidelines.
- Countries guidelines can differ but you will most certainly need to carry your Medical Cannabis Prescription in its original packaging with its prescription label intact on the container and a copy of your prescription.
- Contact your clinic. They will provide you with travel letter to accompany your prescription.
- Some countries will also require you to apply for a permit.
- Up to three months’ supply of a lawfully prescribed Schedule 2-4 Part 1 controlled drug can be carried across a UK border without a licence, provided you can prove the prescription.
- More than three months and you need a Home Office personal licence, applied for before you travel, not something to leave until the week before.
- Going on a cruise? Cruise ships prohibit Medical Cannabis including cbd products!
- No card replaces a prescription. Private medical cannabis ID schemes have no legal recognition anywhere, in the UK or abroad.
What UK law lets you carry
Regulation 6 of the Misuse of Drugs Regulations 2001 makes possession lawful where a controlled drug was supplied to you by, or on the prescription of, a practitioner. That covers having it in the UK. For taking it across a UK border, Home Office guidance on travelling with a controlled drug sets a separate threshold: up to three months’ supply of a lawfully prescribed Schedule 2, 3, or 4 Part 1 medicine can be carried without applying for anything, provided it’s for your own use and you can show where it came from.
Ask for more than three months’ supply, a long stay abroad, a higher daily dose, and the exemption stops applying. Above that you need a Home Office personal licence, and it has to be applied for before you travel. It is not a same-week process.
Most prescribed medical cannabis is an unlicensed special rather than one of the three licensed cannabis medicines, and specials are Schedule 2 controlled drugs. This three-month rule is the one that applies to nearly everyone reading this.
Why the destination decides, not the UK
Everything covered so far governs leaving the UK and coming back into it. None of it obliges any other country to recognise your prescription. Drug law is entirely a matter for the country you’re in, and a lawfully dispensed UK medicine can become an illegal drug the moment you land somewhere else, prescription letter and all.
The letter you need from your prescriber
Alongside the medicine itself, carry a letter from the doctor who prescribed it. It should give your name and date of birth, the medicine, its strength and the quantity you’re carrying, the prescriber’s name and GMC number, their clinic’s details, and the dates of your trip. Ask for it when you request a travel-sized supply, not the week before you fly. Most private clinics that prescribe cannabis handle this routinely, but it still has to go through their admin.
Packing it correctly
Keep it in the original pharmacy packaging with the dispensing label attached. Don’t decant it into something smaller or tidier, flower into a jar, oil into a travel bottle. That label is what ties the product to your name and your prescription, and it’s the first thing anyone checking your bag will look for. Carry the prescriber’s letter with the medicine itself, not filed separately in hold luggage.
Getting through a UK airport
There’s no legal requirement to declare medical cannabis at security. Having the prescriber’s letter to hand simply speeds things up if a bag is searched or a liquid-limit query comes up, oils count toward the standard 100ml liquids allowance in hand luggage, the same as any other liquid. If you’d rather notify the airline or airport in advance, most have an assistance process for medical items, but it’s optional, not required, for something carried under a valid prescription and letter.
Going on a cruise?
Cruise lines are private carriers, and nearly all the major ones prohibit cannabis and cannabis-derived products outright, including CBD, regardless of a medical prescription. This applies even to products with no THC at all.
The reason is straightforward: a ship has to comply with the laws of every port it calls at and the country its flag is registered in, not just the passenger’s home country, and most lines find it simpler to ban cannabis and CBD entirely than assess every product against every port. Royal Caribbean, Carnival, Norwegian, MSC, P&O and Cunard all list cannabis and CBD among their prohibited items, typically covering oils, gummies, vapes, flower and topicals alike.
Bags are commonly X-rayed at the terminal before boarding, and anything found is usually confiscated at the gangway rather than held for the voyage. Depending on the line and the port, being found with cannabis or CBD can also affect boarding itself.
If a cruise is booked, check that cruise line’s own prohibited items policy directly before you pack. Don’t assume a UK medical cannabis prescription changes anything: as with flying abroad, it carries no weight once you’re outside UK jurisdiction, and a cruise line’s own rules apply on top of that regardless.
Places known to take a hard line
Some destinations are well known for zero-tolerance drug enforcement that makes no exception for foreign medical prescriptions, cannabis included. The UAE, Saudi Arabia, Singapore, Japan, South Korea and Indonesia are regularly named in FCDO travel advice, and by other countries’ foreign offices, as places where even a trace amount, declared or not, has led to prosecution, and in some cases severe or mandatory sentencing. If a holiday or work trip touches any of these, even as a stopover, that’s not a chance worth taking with cannabis in any form.
- Gulf states (UAE, Saudi Arabia, Qatar): FCDO advice consistently flags zero tolerance, including for trace residue and CBD or hemp products.
- East and Southeast Asia (Japan, South Korea, Singapore, Indonesia): strict possession laws applied regardless of foreign prescription status; penalties can be severe.
- United States: legal in many states, but still Schedule I federally, and airports are federal jurisdiction regardless of the state you land in.
Connecting flights and transit
A stopover counts. If your route to a permissive destination transits through a country with strict drug laws, you’re still on that country’s soil, sometimes literally, if you have to clear immigration to change terminals. Check the transit rules for every leg of a journey, not just the final destination, before you book, let alone before you pack.
What doesn’t help
Private companies sell cards, certificates and even medical cannabis passports claiming to establish your status internationally. None of them carry any legal weight, in the UK or anywhere else. What matters, everywhere this is even potentially permitted, is an actual prescription and the pharmacy label that came with the medicine. Don’t rely on anything else, and don’t assume a clinic’s own marketing reflects the law of the country you’re travelling to. Check the destination government’s own guidance directly and, if you’re at all unsure, its embassy.
A country-by-country resource
For the destination-by-destination detail this page doesn’t try to cover, PatientsCann UK keeps a Global Cannabis Travel Guide, listing the medical cannabis status of over 250 countries.
MedBud UK also keeps a Cannabis Patient Travel Map, covering the same ground country by country and noting where policy and procedure vary.
Kelly Noble runs Cosmic Tree in Gloucester with Paul. She fields travel questions from medical cannabis patients at the counter most weeks. This article sets out the regulatory position and links to every source. It is not legal advice, and the rules of the country you’re travelling to should always be checked directly before you fly.
Last reviewed 22 September 2026. We review our explainers whenever the guidance behind them changes.
Sources
- Misuse of Drugs Regulations 2001, regulation 6 (lawful possession), legislation.gov.uk
- Home Office, Travelling with medicine containing controlled drugs, gov.uk
- Home Office, Import and export licences for controlled drugs, gov.uk
- Road Traffic Act 1988, section 5A (drug driving), legislation.gov.uk
- Drug Driving (Specified Limits) (England and Wales) Regulations 2014, legislation.gov.uk
- THINK! drug driving guidance, gov.uk
- FCDO, Foreign travel advice by country, gov.uk
- PatientsCann UK, Global Cannabis Travel Guide, patientscann.org.uk
- MedBud UK, Cannabis Patient Travel Map, medbud.wiki
This article explains the regulatory position and links to the sources throughout. It is general information, not legal advice. Rules for the destination country should always be checked directly before travelling. Last reviewed 22 September 2026.
