GLP-1 Medications Abroad: Cold Chain Failures, Customs Traps and Approval Gaps

Your Ozempic pen survives the flight but gets confiscated at the border. Here is how cold chain failures, customs rules, and approval gaps catch GLP-1 travellers off guard.

GLP-1 medications abroad: what you need to know

Semaglutide and tirzepatide pens fail silently. There is no alarm when the cold chain breaks, no visible sign that the medication has degraded. You inject as normal and get no therapeutic effect for weeks before realising something went wrong.

That is the most underreported risk for travellers on GLP-1 receptor agonists. Customs rules and international approval gaps come second and third. All three problems are preventable with the right preparation.

Medical disclaimer: This article provides general travel health information and does not constitute medical advice. Medication regulations change frequently. Consult your prescribing clinician and verify current import rules with the relevant national health authority before travelling. Information was accurate at the time of writing but may not reflect subsequent regulatory changes.

The cold chain problem no one talks about

Unopened semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro) pens must be stored between 2°C and 8°C until first use. Once in use, an Ozempic pen can be kept below 30°C for up to 56 days under the US label^[1], or six weeks under the EU label^[10]. Mounjaro single-dose pens can be kept unrefrigerated below 30°C for up to 21 days, and a Mounjaro KwikPen for 30 days after first use^[11]. Limits differ between products and countries, so check the leaflet that came with your pen.

The failure point is not the flight itself. Checked luggage can be exposed to very low temperatures, and a pen that has frozen must not be used. Cabin bags stay at a stable temperature, which is why your pen must always travel in your carry-on.

Destinations where ambient temperatures exceed 30°C for extended periods create an additional risk for opened pens. Countries such as the UAE, Saudi Arabia, and Thailand regularly record summer outdoor temperatures above 40°C^[2]. Leaving a pen in a hire car or a bag on a sun-exposed terrace can push it well past the 30°C limit.

A FRIO cooling wallet or similar evaporative cooling case keeps medication below 30°C without electricity. It is not a substitute for refrigeration during storage of unopened pens, but it protects an in-use pen reliably during day trips and transit.

Customs declarations: what most travellers get wrong

GLP-1 medications are not controlled substances in most jurisdictions, which creates a false sense of security at borders. They still require a valid prescription and, in several countries, documentation proving the medication is for personal use.

Japan limits personal medication imports to a one-month supply without a Yunyu Kakunin-sho certificate. Bringing more than a one-month supply without prior authorisation^[3] can result in confiscation at the point of entry.

The UAE does not require an Emirates Drug Establishment (EDE) permit for GLP-1 medicines, which are not on its controlled list^[7]; carry your prescription (the personal-import service moved from MoHAP on 29 December 2025). Travellers carrying more than three months' supply^[9] risk having the excess seized.

Carry your medication in its original manufacturer packaging with the pharmacist label attached. Print a letter from your prescribing clinician that states your name, the medication name (both generic and brand), dosage, and the medical reason for use.

Check the specific medication import rules for every country on your itinerary at least four weeks before departure. Rules change more frequently than most travellers expect.

Countries where GLP-1 drugs are not yet approved or are unavailable

Semaglutide has regulatory approval in the EU, the US, the UK, Japan, Canada, Australia and several other markets. Tirzepatide's approvals lag behind^[5], with many countries where Mounjaro is not yet on the national medicines register as of writing.

Lack of approval does not mean the medication is banned for import. It means you cannot replace a lost or damaged pen locally. Pharmacies cannot stock or dispense a medication that has not received national regulatory clearance.

In many lower-income markets neither semaglutide nor tirzepatide is registered or reliably stocked. Check your destination's national medicines register before you travel.

The practical implication: bring your full supply for the entire trip, plus a buffer of at least two extra doses. If you are travelling for more than 90 days, you will likely need to arrange a shipment from your home pharmacy or plan a resupply stop in a country where your medication is approved.

Even in approved markets, supply shortages are real

Demand for semaglutide has outstripped supply in multiple markets simultaneously. The EMA and FDA both listed semaglutide on their medicines shortages databases^[6] at various points between 2022 and 2025. The situation fluctuates by country and dose.

Spain, Portugal, and France all experienced intermittent pharmacy shortages of Ozempic 0.5 mg and 1 mg. Travellers who assumed they could top up in a European pharmacy mid-trip found empty shelves. Portugal's picture is set out in more detail in managing diabetes in Portugal, including SNS prescription rules and how to keep insulin cold through a 35°C summer.

If you are resupplying in a foreign country, call the pharmacy before you travel to confirm stock. Do not assume a major chain will have your dose available on arrival.

Practical steps before you travel

Pack your full trip supply in your carry-on. Never put GLP-1 pens in checked luggage.

Request a letter from your prescribing clinician. It should include the generic name, brand name, your dose, and the indication. Translated versions help at borders where English is not widely understood.

Check your destination's import limit. Japan: one month. UAE: three months, with a prescription and no permit. Many EU countries allow up to three months' personal supply with a prescription, but some set lower limits (Croatia allows one month), so check each country.

Use a cooling case for your in-use pen. Pack a small thermometer log in the same bag so you can verify the pen was not exposed to damaging temperatures during transit.

Confirm hotel refrigeration. Ask your accommodation explicitly whether a minibar or dedicated fridge is available for medication. Medical refrigeration requests can often be arranged in advance at no cost.

Store your medication records digitally. An International Patient Summary through Nomedic gives border officials and any treating clinician immediate access to your current medication list, allergies, and diagnosis. This reduces the documentation burden at customs significantly.

Frequently asked questions

Can I bring semaglutide on a plane in my carry-on?

Yes. Medicines you need for the journey are exempt from the 100 ml liquid limit at security. Carry the pharmacy label and a prescriber letter to show if asked, and keep pens in your cabin bag, not checked luggage, so they cannot freeze in the hold.

What happens if my GLP-1 pen overheats during travel?

Degraded semaglutide or tirzepatide may appear unchanged but will produce reduced or no therapeutic effect. If your pen was exposed to temperatures above 30°C for a prolonged period, contact your prescriber before continuing to use it.

Is semaglutide available to buy at pharmacies abroad?

Only in countries where it has received regulatory approval and where stock is available. Semaglutide is approved in the EU, US, UK, Japan, Canada, and Australia, but supply shortages are documented in multiple markets. Bring your full supply rather than relying on local purchase.

Do I need to declare semaglutide at customs?

Rules vary by country. Most border declarations require you to list prescription medications on customs forms if asked. Japan and the UAE have specific quantity limits and documentation requirements. Carry your prescription and a clinician letter for all international travel.

How long can an in-use Ozempic pen stay at room temperature?

Under the US prescribing information, an in-use Ozempic pen can be kept in the fridge or at room temperature below 30°C for up to 56 days^[1]; the EU label says six weeks^[10]. Do not freeze it, and remove the needle after each injection.

What if I run out of GLP-1 medication in a country where it is not approved?

Contact your prescriber immediately. Depending on your indication, a temporary switch to an alternative therapy may be possible. Some private international clinics in major cities can arrange emergency supply from neighbouring approved markets, though this can be costly.

Does travel insurance cover Ozempic or Mounjaro replacement if my pen spoils?

A spoiled GLP-1 pen is rarely covered by standard travel insurance unless your policy includes specific medication or medical equipment cover. Paying for a replacement pen yourself can be expensive, especially where the medication is imported. Check your policy wording before travel.

Are GLP-1 medications like Ozempic legal in every country?

GLP-1 receptor agonists are not controlled substances in most jurisdictions, and that creates a false sense of security at borders. They still require a valid prescription and, in several countries, documentation proving the medication is for personal use. Japan limits personal medication imports to a one-month supply without a Yunyu Kakunin-sho certificate, and carrying more without prior authorisation can end in confiscation^[3]. The UAE does not require an Emirates Drug Establishment permit for GLP-1 medicines, which are not on its controlled list, but you need the prescription^[7]. A separate problem is approval rather than legality: where a GLP-1 is not registered, it is not banned from import, but no local pharmacy can dispense a replacement if your pen is lost or damaged.