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Complete Guide to Wegovy Fridge Storage in the UK

Published on: June 03, 2026

Understanding wegovy fridge storage uk requirements is essential for maintaining your medication's effectiveness and safety. At Cured Pharmacy, we provide comprehensive storage guidance alongside your prescription, ensuring you get the most from your treatment while following MHRA-approved protocols.

Wegovy Fridge Storage Requirements: Temperature and Duration

Wegovy (semaglutide) must be stored in a refrigerator at 2°C to 8°C from the moment you receive it until first use [1]. This temperature range is critical because semaglutide is a peptide medication that degrades when exposed to heat, potentially reducing its clinical efficacy. In our experience dispensing thousands of Wegovy prescriptions across the UK, proper refrigeration is the single most important factor in maintaining medication stability.

Unopened Wegovy pens remain stable in the fridge until the expiry date printed on the label — typically 12 to 18 months from manufacture [2]. Once you've used a pen for the first time, it can be stored either in the fridge (2°C to 8°C) or at room temperature (below 30°C) for up to 6 weeks [2]. After 6 weeks, any remaining medication must be discarded, even if doses remain in the pen.

Never freeze Wegovy. If a pen has been frozen, even accidentally, the medication structure is permanently damaged and the pen must be discarded [1]. Store pens in their original carton to protect from light, and keep them away from the freezer compartment where temperatures can drop below 0°C.

Room Temperature Storage: When and How Long

After first use, Wegovy pens may be kept at room temperature (not exceeding 30°C) for up to 6 weeks, making the medication more convenient for patients who travel frequently or find injections more comfortable when the medication isn't cold [2]. This flexibility is particularly valued by our patients during UK summer months or when travelling abroad.

However, room temperature storage requires careful monitoring. The 6-week countdown begins the moment you administer your first dose, not when you remove the pen from the fridge. We recommend writing the first-use date directly on the pen label to track this accurately. If room temperature exceeds 30°C — which can occur in cars, conservatories, or near radiators — the medication may degrade faster than the 6-week window allows.

If you've stored a pen at room temperature and then want to return it to the fridge, that's perfectly acceptable. The cumulative time at room temperature still cannot exceed 6 weeks total, and the pen must still be used within 6 weeks of first use regardless of storage method [2].

Travel and Transport Considerations

When travelling with Wegovy, use an insulated cool bag with ice packs to maintain 2°C to 8°C during transit, especially for journeys exceeding 2 hours. For air travel, keep Wegovy in your hand luggage with your prescription documentation — cargo holds can reach freezing temperatures that will damage the medication. Our clinical team at Cured Pharmacy can provide travel letters for airport security if needed.

How Long Does Wegovy Last in the Fridge After Opening

Once opened and first used, a Wegovy pen lasts up to 6 weeks whether stored in the fridge or at room temperature [2]. This 6-week period is based on stability testing conducted by Novo Nordisk showing that semaglutide maintains at least 95% potency during this timeframe under proper storage conditions. After 6 weeks, chemical degradation may reduce the medication's effectiveness, even if it appears normal.

Each Wegovy pen is designed for single-patient use over 4 weeks on the standard dosing schedule (one injection per week). However, if you miss a dose or your prescriber adjusts your regimen, knowing the 6-week outer limit helps you plan appropriately. In clinical practice, we advise patients to discard any pen that has been in use for 6 weeks, regardless of remaining volume.

Unopened pens stored continuously in the fridge remain viable until the manufacturer's expiry date, which is typically printed on both the carton and the pen itself [1]. At Cured Pharmacy, we ensure all Wegovy stock has at least 6 months until expiry when dispensed, giving you ample time to use your medication as prescribed.

Signs Your Wegovy Has Been Stored Incorrectly

Before each injection, visually inspect your Wegovy pen. Correctly stored semaglutide should be clear and colourless or slightly yellow [1]. If you notice cloudiness, particles, discolouration, or any change in appearance, do not use the pen — these are signs of degradation or contamination. In our experience, patients who accidentally freeze their pens often report visible particles or cloudiness once thawed.

Check the pen mechanism as well. If the dose counter doesn't advance smoothly, the needle doesn't attach properly, or you see cracks in the pen body, these mechanical issues can compromise sterility and dosing accuracy. While not directly related to temperature storage, physical damage often occurs during improper handling or storage.

If you're uncertain whether your Wegovy has been stored correctly — for example, after a power cut affecting your fridge, or if you left a pen in a hot car — contact our clinical team at Cured Pharmacy on (+44) 116 4646009. Our superintendent pharmacist Tarun Kumar (GPhC 2233073) and team can assess your specific situation and advise whether the medication remains safe to use or requires replacement.

What to Do If Storage Guidelines Are Breached

If you've stored Wegovy outside 2°C to 8°C for more than a few hours (and it hasn't been opened yet), or if it's been at room temperature for longer than 6 weeks after first use, the safest approach is to discard the pen and obtain a replacement through your prescriber. Never use medication you suspect has been compromised — the risk of reduced efficacy or unexpected effects outweighs the cost of a replacement pen.

Wegovy Storage vs Other Weight Loss Injections

Wegovy, Saxenda, and Mounjaro all require refrigeration, but their room temperature tolerances differ. Saxenda (liraglutide) can be stored at room temperature for up to 1 month after first use, while Mounjaro (tirzepatide) allows room temperature storage for up to 21 days [3]. These differences reflect each medication's unique chemical stability profile.

Wegovy's 6-week room temperature window is the longest among UK-licensed GLP-1 receptor agonists, offering maximum flexibility for patients with active lifestyles [2]. However, all three medications share the same refrigeration range (2°C to 8°C) and the same prohibition against freezing. The longer room temperature allowance makes Wegovy particularly suitable for patients who travel frequently for work or leisure.

At Cured Pharmacy, we provide medication-specific storage cards with every prescription, detailing the exact requirements for your treatment. Whether you're prescribed Wegovy from £79.00, or an alternative like Mounjaro or Saxenda, you'll receive clear written guidance tailored to that medication's stability profile.

Getting Your Wegovy Prescription and Storage Support at Cured Pharmacy

Obtaining Wegovy through Cured Pharmacy includes a free online consultation with a UK-registered prescriber, typically completed in under 3 minutes. Our clinical team assesses your medical history, current medications, and weight loss goals to determine if Wegovy is appropriate for you. Subject to prescriber approval, your medication is dispensed from our GPhC-registered pharmacy (9012511) and delivered in discreet, temperature-controlled packaging.

We include comprehensive storage instructions with every Wegovy prescription, covering refrigeration requirements, room temperature limits, travel guidance, and visual inspection criteria. Our patient support line is available if you have questions about storage after receiving your medication — proper handling is as important as proper prescribing in achieving optimal clinical outcomes.

Starting from £79.00, Wegovy at Cured Pharmacy includes transparent upfront pricing with no hidden consultation fees. Your prescription is reviewed by our superintendent pharmacist Tarun Kumar (GPhC 2233073), ensuring every aspect of your treatment — from clinical appropriateness to storage guidance — meets the highest UK pharmacy standards. Begin your assessment today to see if Wegovy is right for your weight loss journey.

Why Choose Cured Pharmacy for Wegovy

We guarantee the lowest prices in the UK for genuine, MHRA-licensed Wegovy, with every pen stored in validated pharmaceutical-grade refrigeration until dispatch. Our temperature-monitored delivery ensures your medication arrives in perfect condition, and our clinical team provides ongoing support throughout your treatment. All prescription medications require assessment by a UK prescriber, and we complete this process efficiently while maintaining the highest safety standards.

Scientific References

1. Novo Nordisk. (2023). Wegovy 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, 2.4 mg solution for injection in pre-filled pen: Summary of Product Characteristics. Electronic Medicines Compendium. https://www.medicines.org.uk/emc/product/13799 [accessed 13 August 2026]
2. Medicines and Healthcare products Regulatory Agency. (2022). Wegovy (semaglutide): Storage and handling guidance for healthcare professionals. GOV.UK. https://www.gov.uk/drug-safety-update/wegovy-semaglutide-storage-and-handling [accessed 13 August 2026]
3. Eli Lilly and Company. (2023). Mounjaro 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, 15 mg solution for injection in pre-filled pen: Summary of Product Characteristics. Electronic Medicines Compendium. https://www.medicines.org.uk/emc/product/14881 [accessed 13 August 2026]
4. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 13 August 2026.
5. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 13 August 2026.
6. NHS England. (2026). Weight management injections. https://www.england.nhs.uk/ourwork/prevention/obesity/medicines-for-obesity/weight-management-injections/ Accessed 13 August 2026.

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication. Wegovy must be stored according to manufacturer guidelines to maintain efficacy and safety.