Insulin in Spain - how to get a repeat prescription

First things - how much insulin do you have left

Insulin behaves differently from almost any other medication when supply runs low. The dose is calibrated to your body, the timing is tight, and the consequences of going without are not subtle. The first few questions are practical.

• How many units do you have left in your current pen or vial? Including any spare cartridges or pens in your bag.
• How many units do you typically use in a day? Across all your insulins - long-acting (basal) and rapid-acting (bolus).
• How many days do those numbers give you? Be honest with the calculation. It is better to act on day three with two days left, than on day five with none.
• Has the insulin been kept cold? A pen that has been at room temperature for under 28 days is fine. Longer than that, or insulin that has been in a hot car or in direct sun, is no longer reliable.
• Can someone post your usual insulin from home? Possible, but the cold chain is the constraint. A 24- to 48-hour journey by air with a cold pack is usually fine; longer or hotter routes are riskier and you may end up with insulin that no longer works.

One thing not to do is to ration your insulin to make it last. Skipping or stretching doses with type 1 diabetes can produce diabetic ketoacidosis within a day, sometimes faster, and it is a medical emergency. The right answer is always to find a way to top up - not to take less.

When this is urgent - do not wait it out

Insulin is the regular medication least forgiving of delay. The following situations are not "see how it goes" - they are "go now".

In any of these, the right route is Urgencias at any Spanish hospital, or 112 if you cannot get there safely. Online consultations are not the right tool - the response time, the asynchronous review, and the inability to examine you are all wrong for an emergency.

Buying insulin in Spain

Insulin is prescription-only in Spain. A pharmacist cannot dispense any insulin without a valid receta, and Spanish pharmacies are particularly strict about this.

There are a small number of stories online of pharmacies dispensing a single pen as a humanitarian exception when shown the original UK box and a clear explanation. This is at the absolute discretion of the individual pharmacist, is not common, and depends on the pharmacist being personally satisfied that the request is genuine. It is not something to plan around.

A UK or Irish prescription does not work automatically in Spain either. Since Brexit, UK prescriptions are no longer recognised by Spanish pharmacies. Irish cross-border prescriptions can in principle be dispensed but need to be issued on a specific form that most Irish GPs do not use as standard.

The reliable route is a Spanish-registered doctor and a Spanish prescription.

Your insulin at home, your insulin in Spain

The major insulin manufacturers sell most of their products in Spain under the same brand names as in the UK and Ireland. The pen device and the colour of the box are usually the same. The strength on the side of the pen is the most important thing to check - most insulins are 100 units per millilitre, but some long-acting insulins come in higher concentrations and the pens are not interchangeable.

The categories of insulin sold in Spain cover the same ground a UK or Irish patient would expect.

• Long-acting (basal) insulins - the once-daily background insulin. Most major brands available.
• Rapid-acting (bolus) insulins - the mealtime insulin. Most major brands available, mainly as pens and cartridges; vial supply for a small number is less reliable.
• Intermediate-acting (NPH) insulins - less common now but still available.
• Mixed (pre-mixed biphasic) insulins - common types available.

One important exception: a long-established intermediate-duration basal insulin used by some UK and Irish patients has been discontinued in Spain. Patients on that one should expect to be told the truth and signposted to their home diabetes team rather than offered an unsafe local switch.

The other thing worth knowing is that insulin pumps are well-established in Spanish public diabetes care, but the consumables - infusion sets, reservoirs, sensor patches - are usually supplied directly through the diabetes service rather than over the pharmacy counter. An online consultation cannot help with pump consumables.

How to get a repeat prescription the same day

Public route: Urgencias or Centro de Salud

With an EHIC, a UK GHIC, or a Spanish tarjeta sanitaria, you can be seen for an emergency insulin supply at Urgencias the same day, or at any Centro de Salud. For anything urgent, this is the right route.

Private in-person GP or endocrinologist

A private GP appointment costs EUR 50 to 120 with same-day availability in most cities. A private endocrinologist costs EUR 90 to 180. For a one-off repeat with no clinical surprises, a GP is usually enough; for anything more involved, an endocrinologist.

Online private consultation

For a one-off repeat of your usual insulin - same brand, same strength, same device, with evidence of your current prescription from within the last six months - an online consultation is often the fastest route. Our doctor reviews your details, confirms the exact match, runs the safety questions any responsible prescriber would, and if appropriate, issues a Spanish receta privada the same day.

What to have ready: the exact brand of insulin (long-acting and rapid-acting separately), the strength in units per millilitre, the device (the specific pen or cartridge), your typical daily dose, the name of your diabetes team or GP, and recent evidence of the prescription - a photograph of the box, a prescription from the last six months, a clinic letter, or your NHS app screenshot.

What we cannot help with

A one-off repeat of an established insulin is something we can do safely from a distance, with the right safeguards. Several related requests are not - and a responsible prescriber declines them rather than working around the limit.

For any of these, the right route is Urgencias, a Centro de Salud, or a private endocrinologist in person. Our consultation form will tell you immediately, at no charge, if your situation is outside scope.

Practical advice and travelling with insulin

• Carry at least double what you think you need, split across two pieces of luggage. Insulin lost with a suitcase is the most common reason for the consultations we see.
• Always carry insulin in hand luggage, never in the hold. Hold temperatures can drop below freezing and ruin an entire supply.
• Keep insulin out of direct sun and out of hot cars. A simple insulated pouch is enough for most travel. Specialist insulin coolers - the type that activates with water - are useful for longer trips in hot countries.
• An open pen is good at room temperature for 28 days. After that, even if there is insulin left, replace it.
• A doctor's letter helps at the airport. Insulin pens, needles, and lancets are allowed through security worldwide, but the conversation goes faster with a letter from your GP or diabetes team listing what you carry and why.
• Set a phone alarm for your basal dose when crossing time zones. The basal injection is the one easiest to forget when the daily rhythm is broken.
• Photograph every box and every pen label before you travel. It saves time at any consultation.
• Travel insurance covers the cost of replacing insulin abroad when the need is unforeseen. Keep receipts and consultation documentation for the claim.

Important. Insulin is a high-risk medication and this service is deliberately narrow. We do not start insulin, switch insulin, adjust doses, or supply pump consumables. For any urgent diabetes problem, the right route is Urgencias or 112.