Wegovy Pen Instructions: Where to Find the Official PDF and What It Covers

The patient information leaflet included with every Wegovy pen is the definitive guide to using your device safely and correctly. It is written for people who have already been prescribed semaglutide and covers everything from preparing your pen to disposing of it after use. Because Wegovy is a prescription-only medicine, the instructions assume your prescriber or doctor has already explained the basics of your treatment — the leaflet fills in the practical detail.

Key areas the leaflet addresses

• Injection sites: The leaflet describes the three areas commonly used — the abdomen, the front of the thigh, and the upper arm — and explains the importance of rotating between sites at each weekly injection.
• Step-by-step pen use: From checking the flow and attaching the needle to injecting, holding, and removing the needle safely, the leaflet walks through each step. For clinical technique guidance, always follow these official instructions rather than any third-party summary.
• Storage: Check the leaflet for current storage requirements; as a general guide, pre-filled Wegovy pens are typically stored in a refrigerator, but your leaflet and packaging are the authoritative source for precise temperatures and timings.
• Disposal: Needles and used pens must be disposed of safely. Your leaflet and your prescriber or local pharmacy can advise on the correct method in your area.
• Side effects and reporting: The leaflet lists commonly reported side effects and directs you to report any unexpected reactions to your healthcare professional and to your national reporting scheme (such as the UK's Yellow Card scheme or the equivalent in your country).

You can access the current Wegovy patient information leaflet directly on the electronic Medicines Compendium (eMC). Always use the version that matches your pen's strength and batch, as leaflets are updated periodically.

If you are also looking at how another pen works, see how Mounjaro pen instructions compare — tirzepatide and semaglutide devices have some differences in design and steps. For a broader overview of your Wegovy pen itself, the guide to understanding your Wegovy pen covers the device in more detail, and Wegovy pen dose strengths and changes is useful if your pen has recently been updated.

Reading the instructions is the starting point — but staying consistent with a weekly injection schedule over months is a different challenge. GLP Trackr's injection-site tracking is built specifically for this: each time you inject, you log the site (abdomen, thigh, or upper arm), and the app keeps a running rotation history so it can suggest your next site automatically. That means you are never guessing whether you used your left abdomen last week.

Alongside site tracking, the dose logging feature lets you record each injection's date, time, and dose strength in one place — useful if you ever need to check when your last pen was used or want a clear record to bring to your next prescriber appointment. The built-in dose reminder means a weekly injection is much harder to accidentally skip.

GLP Trackr is a tracking companion, not a substitute for the instructions in your leaflet or the guidance of your prescriber or doctor. For any questions about technique, storage, or what to do if something goes wrong with your pen, your leaflet and healthcare professional are always the right first stop. If anything about your pen or your experience concerns you, contact your prescriber or doctor promptly.

Ready to make every injection easier to stay on top of? Explore the full GLP Trackr guide to managing your GLP-1 journey — or download GLP Trackr free on the App Store or Google Play and start a 7-day free trial to see the site-rotation and dose-logging tools in action.