How to Store Wegovy Pens: What You Need to Know

Wegovy pens are supplied as pre-filled, single-use injector devices containing semaglutide. The general storage guidance — based on information in the electronic Medicines Compendium (eMC) product information — is to store unused pens in a refrigerator between 2°C and 8°C, away from the freezer compartment and any direct contact with ice packs or freezing surfaces. Never use a pen that has been frozen.

Once a pen has been taken out of the fridge, it can typically be kept at room temperature (below a certain threshold — check your leaflet for the exact figure, as this can vary) for a limited period before it must be used or discarded. Your patient information leaflet will state the number of days that applies to your specific supply, so keep that leaflet somewhere easy to find.

A few practical points worth noting:

• Keep pens in their original packaging until the moment of use — the carton helps protect them from light.
• Avoid heat and direct sunlight. Do not leave a pen on a sunny windowsill, in a hot car, or near a radiator.
• Do not freeze. A pen that has been accidentally frozen should not be used — contact your prescriber or pharmacist for guidance.
• Check the expiry date before every injection. Using an expired pen is not recommended; speak to your pharmacist if you have concerns.
• Travelling? A cool bag or travel case designed for injectable medicines can help you maintain the right temperature on the go — your prescriber or pharmacist can advise on suitable options.

If you are ever unsure whether a pen has been stored correctly, the safest step is to contact your prescriber or pharmacist before using it rather than guessing.

For a general overview of using and managing your medication, the Wegovy overview on GLP Trackr is a useful starting point. If you are also interested in how storage works for tirzepatide, see our guide on storing Mounjaro pens. You may also find our page on whether Wegovy needs to stay in the fridge helpful for common questions around refrigeration.

One of the most practical ways GLP Trackr supports your Wegovy journey is through dose and injection logging. Every time you use a pen, you can record the date, dose strength, and injection site in the app — creating a clear timeline of your treatment that you can review at any time.

This matters for storage because knowing exactly when you took a pen out of the fridge (which you can note alongside your dose log) makes it much easier to keep track of the at-room-temperature window for any pen you are currently using. Rather than trying to remember when you removed it, you have a timestamped record in your pocket.

The app also sends dose reminders so your weekly injection is never forgotten — useful for making sure pens do not sit at room temperature for longer than necessary because an injection was delayed.

If you ever have a question about a pen that may have been stored incorrectly, log it in GLP Trackr and bring that record to your next conversation with your prescriber or pharmacist. GLP Trackr helps you stay organised and informed — it is not a substitute for professional advice, and any concerns about pen safety or storage should always go to your healthcare team first.

For a broader look at managing your Wegovy journey, visit our GLP-1 medicines hub.

Ready to keep your whole journey in one organised place? Download GLP Trackr on the App Store or Google Play — your first 7 days are completely free.