Wegovy storage instructions: keeping your pen safe between doses

Why the fridge shelf position actually matters

A fridge that is set correctly can still freeze medicines placed near the back wall or in the coldest compartment. Wegovy pens should sit on a middle shelf, away from the freezer section and the door, the door fluctuates in temperature every time it opens. The target is a steady 2–8°C throughout the pen's time in storage. A quick check worth building into your routine: once a week, glance at a fridge thermometer (inexpensive from any supermarket) to confirm you are within range. It takes under a minute and removes the guesswork. Exposure to temperatures below 0°C (even briefly) denatures the semaglutide protein, and a frozen pen should not be used even after it has thawed. There is no way to tell by looking at it whether freezing has damaged the solution, which is precisely why preventing it matters. The Wegovy Summary of Product Characteristics on the eMC gives the full technical specification; your Patient Information Leaflet repeats the same guidance in plain language and should be your first reference for anything product-specific, and our Wegovy storage guide brings the most relevant points together in one place.

The out-of-fridge window and how to use it sensibly

Once removed from the refrigerator, a Wegovy pen can be stored at room temperature (defined as up to 30°C) for a limited period before it must be used or discarded. That exact period is stated in your Patient Information Leaflet, and it varies between presentations, so this page deliberately does not print a specific number of days: following your leaflet is safer than following a website. What this page can tell you is that the clock starts when the pen first leaves the fridge, not when the cap comes off. If you are planning to inject away from home, count back from your injection day and check whether room-temperature storage for that journey is within the permitted window. Keep the pen out of direct sunlight and away from car dashboards, windowsills or any surface that warms up. For a detailed look at how temperature affects the pen during travel, our guide on Wegovy temperature and storage limits covers specific scenarios including flying and warm weather.

Checking the solution before you inject

Semaglutide solution should be clear and colourless. Before every injection, hold the pen up to a light source and look through the cartridge window. You are checking for cloudiness, discolouration or floating particles. Any of these is a reason not to inject. The same applies if the pen has been dropped and you suspect the cartridge may be damaged, or if you cannot confirm the pen has been stored correctly since dispensing. A damaged or compromised pen is not a small inconvenience, injecting degraded medicine will not simply reduce effectiveness; in rare cases it can cause a local reaction. If you are ever unsure, the right call is to contact your prescriber or pharmacist rather than proceed. You can reach the nume support team seven days a week if you have a query about a pen you have received from us. For a full walkthrough of the injection process itself, including pen priming and site rotation, the step-by-step Wegovy pen instructions page covers each stage in order, and if you prefer an offline reference you can save or print, you can also download the Wegovy pen instructions PDF.

Disposal and what not to do with used pens

Used Wegovy pens are sharps waste. They should never go into household recycling or general refuse. A purpose-made sharps bin keeps used pens safely contained until you can hand them in at a pharmacy or GP surgery. If you need one, a 1-litre sharps container is available from our pharmacy. Do not recap a used needle in a way that risks a needlestick injury; most pen needles have a safety cap that goes back on before removal. Used pens retain a small volume of solution and should be treated as clinical waste throughout. The NHS semaglutide medicines page includes practical guidance on disposal alongside other common questions about using the medicine. Wegovy is a prescription-only medicine for weight management; it is distinct from Ozempic, which contains the same active ingredient but is licensed for type 2 diabetes, if you have come across information about Ozempic for weight loss, that page explains the licensing difference clearly. Questions about the cost of ongoing treatment are covered on our Wegovy cost page, including what a private prescription typically includes.