Travelling with Foundayo: flights, heat, time zones and the insurance question nobody warns you about

Last verified: 12 August 2026

The big one: declare it on your travel insurance

Here's the clear picture, because this catches people out constantly. If you take a GLP-1 medicine, you should declare it when you buy travel insurance, and declare the condition it's prescribed for (weight management, obesity or type 2 diabetes) as a pre-existing condition. When Which? surveyed dozens of UK insurers about weight loss medicines in 2026, more than half said prospective policyholders needed to declare them even with no other health conditions, and insurer positions vary, which is precisely why you ask rather than assume.

Why it matters so much: failing to declare prescription medication or a related condition can invalidate your policy. That means if anything goes wrong abroad, even something entirely unrelated, the insurer may refuse the claim, and average medical claims abroad run to roughly £1,500, with serious cases reaching tens of thousands. Against that, the cost of declaring is usually modest: in Which? testing, declaring obesity and weight loss medication added a matter of pounds to a typical premium, not hundreds.

What insurers will ask, and why BMI comes up

• The medicine and dose: have your prescription details to hand before you start the quote.
• The condition it's prescribed for: weight management, obesity or type 2 diabetes. This is the pre-existing condition part of the screening.
• Your current weight, height and BMI: many medical screenings ask directly, and your BMI can affect the premium. Answer with today's honest numbers, not aspirational ones; a claim can be checked against your GP records.
• Where it's prescribed from: some insurers only cover GLP-1 medicines prescribed by a GP or through a registered pharmacy as part of a supervised programme. Medicines from unregistered sellers may not just be dangerous, they can also be uninsurable, which is one more reason our listings are GPhC-verified only.
• Related conditions: if you also have high blood pressure, sleep apnoea, diabetes or similar, declare each. Screenings are confidential and the questions exist to make sure you're actually covered.

Flying with Foundayo

• Hand luggage, always. Hold bags go missing, and you don't want a week's treatment in a lost suitcase. Tablets have no liquid restrictions and sail through security.
• Original bottle and carton. The packaging protects the tablets from light and moisture and answers any border question before it's asked. Loose pills in an unmarked container invite exactly the conversation you don't want.
• Proof of prescription. Not usually demanded, but some airlines and border authorities recommend or require it, and it takes seconds to photograph the dispensing label and keep a copy on your phone.
• Check your destination's rules. Most countries have no issue with a licensed GLP-1 for personal use, but a few regulate medicines strictly. The FCDO travel advice pages cover medicine rules by country; check before you fly, especially for the Middle East and parts of Asia.

Heat, beaches and storage abroad

Foundayo stores at room temperature, 20 to 25C, and tolerates short spells between roughly 15 and 30C in transit, which covers almost every holiday scenario without any effort. The two situations to avoid are the parked car, which can pass 50C in an hour of sunshine, and the beach bag left in direct sun. A shaded spot in your accommodation is all it needs; no fridge, no cool bag, no drama. Compare that with the injections, which need a genuine cold chain, and you'll see why frequent travellers are watching this tablet closely.

Time zones without the maths

Because Foundayo is once daily with no food or water rules, time zones are refreshingly simple: aim to keep roughly 24 hours between tablets, shifting your dose time gradually towards local time over a day or two. Never take two tablets within a day to "reset", and if you're crossing a lot of zones and unsure, keeping your home schedule for a short trip is perfectly fine. Setting a phone alarm covers the only real risk, which is holiday brain forgetting entirely. Missed one anyway? Our missed dose rules cover it.

Eating, drinking and feeling well away from home

• Buffets and big holiday meals are the classic nausea trigger on a GLP-1. Small plates, eaten slowly, stopping at fullness: your holiday will be better for it.
• Hydration matters double in hot climates. GLP-1 medicines quieten thirst as well as appetite, and dehydration abroad lands harder. Carry water and drink to a schedule, not to thirst.
• Alcohol lands harder on a much emptier stomach; take it gently, especially in the sun.
• Stomach upsets abroad need a lower threshold for help when you're on a GLP-1, because persistent vomiting or diarrhoea plus heat dehydrates you quickly. If you can't keep fluids down, seek local medical care and let your insurer's assistance line know: this is exactly what you declared the medicine for.

If your tablets are lost or stolen

Report the loss to local police and get a report number, contact your insurer's assistance line, and speak to a local pharmacy or doctor about an emergency supply, which in many countries is possible for a licensed medicine with proof of prescription. Declared properly, many policies can cover lost or stolen medication. Then simply resume your normal schedule when you're back on supply; never double up to compensate for missed days, and if you've missed several, check with your prescriber about restarting, as they may want you to step back a dose.