Does semaglutide need to be stored in the fridge?

What the product information tells us about semaglutide storage

The Wegovy injection SmPC (the definitive product reference, hosted on the Electronic Medicines Compendium (eMC)) is the authoritative source for storage conditions, and it is clear. Unused pens must be stored in a refrigerator at 2°C to 8°C, protected from light, and kept away from the freezer compartment. Freezing destroys the medicine; a pen that has been frozen must not be used.

After you remove a pen from the fridge and begin using it, the window for room-temperature storage opens. The exact number of days is specified in the leaflet that comes with your medicine. That figure is not repeated here deliberately, it can change between product batches and formulations, and following your own leaflet is the only safe approach. If you are unsure, your dispensing pharmacist can also walk you through whether you need to keep semaglutide in the fridge and for how long.

A practical note: many people keep their current pen in the fridge door alongside everyday items, which is fine, provided it stays within the 2–8°C range and is not exposed to direct light or the freezer zone. Spares and future pens should always stay refrigerated until needed.

Does Wegovy need to be in the fridge on the day it arrives?

Wegovy injection is dispatched in temperature-controlled packaging designed to maintain the cold chain during transit. At nume, pens are sent via our GPhC-registered pharmacy in tracked, plain packaging, and the packaging is built to keep the medicine within range for the delivery window. Still, if you have ever wondered whether Wegovy needs to be in the fridge as soon as it arrives, the short answer is yes, you should transfer pens promptly on arrival, within a few hours is sensible. If a delivery is delayed significantly, or the packaging appears damaged, contact your prescriber before using the pen.

Travelling with Wegovy is a question our prescribers hear regularly. For short trips (a weekend away, a long commute) your current pen can usually travel at room temperature within the permitted window stated in the leaflet. For longer journeys or flights, a small insulated cool bag (not a freezer pack directly against the pen) is the practical solution most people find works well. Always check the airline's rules on injectable medicines and carry your prescription documentation.

If you are thinking about the broader benefits semaglutide offers, storage logistics are rarely the deciding factor, but it is worth planning ahead, especially if your routine involves travel.

Oral semaglutide: no fridge required

The landscape shifted in June 2026 when the MHRA approved Wegovy tablets (oral semaglutide) making the UK the first country in Europe to license this formulation for weight management. The storage picture is fundamentally different: the tablets are kept at room temperature, away from moisture and direct light, with no refrigeration needed at all.

This matters practically. There is no cold chain to manage, no worry about whether Wegovy has to be stored in the fridge, and no need to plan your travel around keeping a pen cool. For people whose lifestyles make refrigerated storage genuinely difficult (frequent travellers, those without reliable fridge access, or anyone who finds injection pens a barrier) the tablet option removes those constraints entirely. You can read more about how Wegovy works and what it involves to compare the two formats.

The trade-off is adherence to the tablet's own rules: it must be taken first thing in the morning on an empty stomach with a small amount of plain water, and you need to wait at least 30 minutes before food, other drinks or medicines. That routine replaces the cold-chain routine. Neither format is objectively simpler for every person, it depends on your lifestyle.

When to contact your prescriber about storage concerns

A few situations warrant a call before you use your next pen. If the pen has been left out of the fridge for longer than the period stated in your leaflet, do not assume it is still effective, degraded semaglutide may reduce how well it works, and using a compromised pen is not worth the risk. Similarly, if the solution looks cloudy, discoloured or contains visible particles, stop and contact your pharmacy.

Accidental freezing is a less obvious one. A pen shoved to the back of the fridge near the freezer compartment (or left in a car on a cold night) may have been frozen even if it does not look obviously damaged. When in doubt, call rather than guess.

For questions about costs and what a private prescription includes, our Wegovy cost guide sets out what is covered in a single transparent price. If you have a general query about how the consultation works, our FAQs page covers the common ones. And if you are ready to discuss whether semaglutide is clinically suitable for you, speak to our prescribers through a free consultation, reviewed the same day by a GPhC-registered Independent Prescriber, not a chatbot.