| Insulin safe temperature (unopened) | 2β8Β°C (refrigerated) |
| Insulin safe temperature (in use) | Below 25Β°C, up to 28β30 days |
| Recommended supply buffer | 2Γ expected quantity |
| Pre-travel appointment lead time | 4β6 weeks before departure |
| CGM scanner compatibility | Avoid full-body X-ray; request pat-down |
Key Takeaways
- Always carry double the supplies you think you need
- Carry a doctor's letter and medication list in local language if possible
- Keep insulin in carry-on luggage β never checked baggage
- Adjust basal insulin timing gradually across time zones
- Research local emergency healthcare options before departure
Pre-Travel Planning
Successful international travel with diabetes begins weeks before departure. Schedule a diabetes review appointment with your endocrinologist or GP at least 4β6 weeks ahead. Discuss destination-specific risks, vaccination requirements, and any medication adjustments needed for time zone changes.
Essential Documentation
- Doctor's letter confirming diagnosis and listing all medications and devices
- Prescriptions for all insulin, oral medications, and supplies
- Medical ID bracelet or card in English and destination language
- Travel insurance documentation covering pre-existing conditions
Packing Your Diabetes Supplies
The golden rule: pack at least twice your expected supply quantity. Airlines lose luggage, pharmacies abroad may not stock your brand, and illness can increase insulin requirements dramatically.
| Item | Recommended Quantity |
|---|---|
| Insulin vials/pens | 2Γ expected need |
| Test strips | 2Γ normal daily use |
| Lancets & needles | 2Γ expected need |
| Fast-acting glucose | Minimum 3 days supply |
| Ketone strips | 1 full pack |
Insulin Storage While Travelling
Unopened insulin must remain between 2β8Β°C (refrigerated). Once opened, most insulins are stable at room temperature (below 25Β°C) for 28β30 days. In hot climates, a insulin cooling case is essential. MDS Diabetes stocks a range of travel cooling wallets and Frio cases suitable for all climates.
Airport Security
Insulin, needles, and CGM devices are permitted through security in most countries. Carry your doctor's letter. In the US, TSA allows diabetes devices through screening without removal. CGM sensors and insulin pumps should not go through full-body X-ray scanners β request a manual pat-down instead.
Managing Time Zone Changes
Time zone shifts are one of the most complex aspects of diabetes travel. General guidance varies by insulin type:
Eastward Travel (shorter day)
You may need to reduce your long-acting insulin dose by 10β20% on travel day. Monitor blood glucose every 2β3 hours during the flight.
Westward Travel (longer day)
You may require a small additional dose of short-acting insulin. Work with your diabetes team to create a specific adjustment plan before travel.
Eating and Blood Sugar Management Abroad
Unfamiliar foods, irregular meal times, and increased walking all affect blood glucose significantly. Test more frequently than usual β aim for every 2β3 hours initially. Carry fast-acting carbohydrates at all times: glucose tablets, fruit juice, or glucose gels available from MDS Diabetes.
Healthcare Access Abroad
Before departure, research hospital locations and emergency phrases in the local language. The International Association for Medical Assistance to Travellers (IAMAT) provides lists of English-speaking doctors worldwide. Always carry your travel insurance emergency contact number separately from your main bag.