Travelling with GLP-1 medication: flights, heat and time zones
Pens and tablets travel well with a little planning. Airport security, hotel fridges, hot climates and time-zone shifts, covered.
Airports and security #
Carry medication in hand luggage, never in the hold, where temperatures drop below safe range. Keep pens in their original packaging with the pharmacy label visible, and carry a copy of your prescription or a clinic letter. UK security is accustomed to injectable medicines. Needles for personal medication are permitted with the medicine they serve. Declare them at the scanner and the process is usually a two-minute conversation.
Keeping pens cool #
- In-use pens (Mounjaro, Wegovy) can stay out of the fridge for up to 30 days below 30°C, plenty for most holidays.
- Unopened pens need 2 to 8°C. For longer trips, use an insulated cool pouch with gel packs.
- Never let a pen freeze. Never leave a pen in a parked car or direct sun. If you have doubts about temperature exposure, message the clinical team before you use the pen.
Tablets (Wegovy tablets, Foundayo) are the easy travellers: room temperature, no restrictions.
At your destination #
Hotel mini-fridges often run warmer or colder than medicine fridges, check with a thermometer if the trip is long, or ask reception for fridge space. Keep pens out of the minibar freezer compartment. Frozen medicine must be discarded.
Time zones and dose timing #
For weekly injections, pick a local time you will remember. The exact hour matters less than the 7-day gap. On short trips of a few days, keeping to UK time is easiest. For daily tablets, shift the dose gradually or tie the dose to breakfast in the new zone. Missing one tablet is not a crisis. Never double up.
The paperwork which protects you #
- Travel insurance covering pre-existing treatment.
- A clinic letter confirming your prescription, message us and we provide one.
- Enough supply for the trip plus a buffer week, ordered at least 2 weeks ahead.
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Page information
- Summary
- How to fly with Mounjaro or Wegovy: airport security, keeping pens cool, hotel fridges, time zones and the documents worth carrying. Read the full guide.
- Publisher
- Aero Clinic, operated by AERO HEALTHCARE LTD.
- Editorial update
- Clinical review
- Pending. An editorial update is not a clinical sign-off.
Cite as: Travelling with GLP-1 medication: flights, heat and time zones, Aero Clinic (https://www.cagri.co.uk), AERO HEALTHCARE LTD. https://www.cagri.co.uk/article-travelling-glp1. Editorial update: 4 November 2026. Clinical review pending.