How do you take the Wegovy shot, and what should you expect?

Where on your body does the Wegovy shot go?

The three sites licensed for Wegovy injections are the abdomen, the front of the thigh, and the outer upper arm. Most people start with the abdomen because it is easiest to reach and gives you a good view of what you're doing. Whichever site you use, the injection goes into the layer of fat just beneath the skin rather than into muscle, that is what 'subcutaneous' means in practice. If you are giving yourself the shot, the upper arm is tricky to self-administer without an awkward angle, so many people reserve that site for when someone else is helping.

Rotation matters. Injecting repeatedly into the same spot can cause the skin to thicken or dimple, which affects how the medicine is absorbed. A simple habit that helps: divide each site into rough quadrants and move around them week by week, so the same small patch of skin gets roughly a month's rest between injections. Our guide on how to give the Wegovy shot walks through technique in more detail if you would like a fuller picture.

There is a common misconception worth clearing up gently: some people assume the shot has to go into the stomach specifically for it to work. It does not. All three approved sites deliver semaglutide into the same subcutaneous layer, and absorption is comparable across them according to NHS guidance on semaglutide. Choose whichever site you find most comfortable and can reach safely.

What is the right way to prepare and give the injection?

Before you begin, take the pen out of the fridge and let it reach room temperature for a few minutes, injecting cold medicine is not harmful, but it can sting more than it needs to. Check the liquid through the pen window: it should look clear or faintly coloured and free of particles. If it looks cloudy or has visible chunks, do not use that pen and contact your prescriber or pharmacy.

Clean the injection site with an alcohol swab and let it dry fully, this step is brief but skipping it removes the protection it offers. Pinch a fold of skin gently, press the pen firmly against it at a roughly 90-degree angle, and press the injection button until it clicks, holding it in place until the dose counter reads zero. Do not rub the site afterwards; gentle pressure with a clean finger or a cotton ball is fine.

Used pens go directly into a sharps bin, not into household waste. If you do not have one, a pharmacist can advise. If you would like a step-by-step explanation of the process, our page on how to do the Wegovy shot covers each stage of the injection technique in sequence.

When should you take it, and what if you miss a day?

Wegovy is designed to be taken once a week, and choosing a consistent day (say, every Thursday morning) makes it far easier to build into your routine. The time of day is flexible; you do not need to take it at the same hour each week, though many people find pairing it with something predictable (a morning coffee, a weekend ritual) means they rarely forget.

If you miss a dose, the right course of action depends on how long it has been since your scheduled day. The Patient Information Leaflet gives clear instructions for this, and your prescriber is the right person to ask if you are unsure. The answer varies depending on whether you are within a few days of the missed dose or closer to your next one, so it is not something to guess at. For a broader look at how you take Wegovy, including the titration schedule and what to expect at each stage, our dedicated overview page covers the full picture.

Side effects, particularly nausea, are most noticeable in the first week or two after starting or after a dose increase. That pattern tends to settle. Keeping well hydrated and eating smaller portions helps; if GI symptoms are severe or persistent, your prescriber needs to know before any dose change is made. You can explore weight-loss treatment options more broadly if you are still deciding which approach suits your situation, and our FAQs cover some of the most common practical questions we hear.

What should you never do with the Wegovy pen?

A few things are worth stating plainly. Do not share your pen with anyone else, even if they use the same medicine, cross-contamination risk aside, the dose is prescribed for you specifically. Do not inject into skin that is sore, bruised, scarred or affected by a rash; choose a nearby area and note it for your prescriber.

Do not change your dose on your own schedule. The titration from 0.25mg upward happens at intervals set by your prescriber for a reason: moving too fast increases the likelihood of nausea, vomiting and other gastrointestinal effects that can lead people to stop treatment prematurely. The dose is raised only when your body has adjusted to the current level, and that assessment is a clinical one. If you feel ready to move up sooner, or if side effects are making the current dose hard to manage, that is exactly the kind of question to bring to your prescriber rather than to act on alone. If you are still getting to grips with the basics, our page on how to take Wegovy explains the process clearly for those who are new to the treatment, and our guide to how you take Wegovy shots covers the practical side of handling and administering the pen itself.

If you have questions about any aspect of your treatment, our aftercare team is available seven days a week. And if you are still at the stage of weighing up your options, a free consultation with our clinical team is the place to start. Speak to our prescribers and get a personalised answer, visit our treatment page to begin.