# Where to inject, and how to rotate > The NHS, the Mounjaro, Wegovy and Ozempic leaflets and Zepbound’s label all name the stomach, the thigh and the upper arm; for tirzepatide, the back of the arm, with help. On rotating, the NHS and the Mounjaro and Wegovy leaflets say the same area each week is fine, as long as it isn’t the exact same spot. Canonical: https://jabwise.app/guides/injection-sites. Sources checked 12 October 2026. General information, not medical advice: follow your prescriber. ## Try a rotation Count each side on its own and there are six places, not three. The map starts with six weeks already logged, one jab in each. Tap wherever this week’s went and the dashed ring jumps to the one you’ve left alone longest, which is exactly how the app picks its suggestion. It only keeps track; it can’t tell you which spot suits you. ## The three areas - **Stomach**: Also called the abdomen. Wegovy’s leaflet asks you to stay 5cm away from your belly button when you inject. - **Thigh**: The upper leg, which every medicine on this page lists. Ozempic’s leaflet says to use the front of your thigh. - **Upper arm**: All four list it. For the back of it, Mounjaro says someone should help; Zepbound, someone else should inject. ## In their own words What each medicine’s information says about rotating, quoted as written. Ozempic’s leaflet doesn’t cover it, so its row quotes the NHS semaglutide page. - **Mounjaro**: Areas: Stomach, thigh, back of upper arm; On rotating: "If you want to do so, you can use the same area of your body each week. But be sure to choose a different injection site within that area." ([Mounjaro KwikPen patient leaflet](https://www.medicines.org.uk/emc/product/15481/pil)) - **Zepbound**: Areas: Abdomen, thigh, back of upper arm; On rotating: "Rotate injection sites with each dose." ([Zepbound prescribing information](https://uspl.lilly.com/zepbound/zepbound.html)) - **Wegovy**: Areas: Upper arms, stomach, upper legs; On rotating: "You may inject in the same body area, but make sure it is not in the same spot as used the last time." ([Wegovy FlexTouch patient leaflet](https://www.medicines.org.uk/emc/product/13800/pil)) - **Ozempic**: Areas: Front of thighs, front of waist, upper arm; On rotating: "you can use the same area but do not use the exact same spot" ([NHS: Semaglutide](https://www.nhs.uk/medicines/semaglutide/)) ## What they ask on jab day - **A new spot each time**: The same area is fine, says the NHS, just not the exact same spot. - **Under the skin only**: Never into a vein or a muscle, as the Wegovy and Ozempic leaflets both put it. - **Insulin somewhere else**: If you inject insulin as well, the NHS asks for a different place. - **If you’re unsure**: The NHS says to ask a pharmacist or doctor if you’re unsure how to use your pen. ## Questions ### Can I inject in the same area every week? The NHS and the Mounjaro and Wegovy leaflets say yes, as long as you move to a fresh spot within it each time. If your prescriber has said something different, that applies to you. ### Does it matter which side I use? None of the leaflets prefers one side. Jabwise counts left and right separately only to give you more places to note down, which is why it shows six areas instead of three. ### Are Mounjaro and Zepbound injected in the same places? Yes. Both are tirzepatide, made by Lilly, and Zepbound is the name it’s sold under for weight loss in the US. The UK Mounjaro leaflet and the Zepbound label list the same three places (stomach, thigh, back of the upper arm) and both involve someone else for the arm: Mounjaro’s leaflet says someone should help, and Zepbound’s label says another person should inject. ### What if I inject insulin too? The NHS pages for semaglutide and tirzepatide both say to inject into a different place if you inject insulin as well, and the Mounjaro leaflet says the same. Your diabetes team can tell you what suits you. ### What if the skin is itchy or red afterwards? The NHS lists itchy or red skin where you inject as a common side effect. If it bothers you or doesn’t go away, it says to speak to a pharmacist or doctor. ## In Jabwise: Injection areas Jabwise remembers where every jab went. By the time you log a dose, the Area row has already picked the one you’ve left alone longest and marked it Suggested. Rather go somewhere else? Tap it and choose. No account, and it costs nothing. ## Getting real advice - **A pharmacist, your doctor or NHS 111**: If you’re not sure how to use your medicine, or a side effect bothers you or won’t go away. NHS 111 if you think you might be having serious side effects, or you’ve used too much. [NHS: Semaglutide](https://www.nhs.uk/medicines/semaglutide/), [NHS: Tirzepatide](https://www.nhs.uk/medicines/tirzepatide/), [NHS 111 online](https://111.nhs.uk/) - **Report a side effect**: Anyone can, not only doctors. [Yellow Card (UK)](https://yellowcard.mhra.gov.uk/), [MedWatch (US)](https://www.fda.gov/safety/medwatch-fda-safety-information-and-adverse-event-reporting-program) ## Sources - [NHS: Semaglutide](https://www.nhs.uk/medicines/semaglutide/) - [NHS: Tirzepatide](https://www.nhs.uk/medicines/tirzepatide/) - [Mounjaro KwikPen patient leaflet](https://www.medicines.org.uk/emc/product/15481/pil) - [Zepbound prescribing information](https://uspl.lilly.com/zepbound/zepbound.html) - [Wegovy FlexTouch patient leaflet](https://www.medicines.org.uk/emc/product/13800/pil) - [Ozempic patient leaflet](https://www.medicines.org.uk/emc/product/9748/pil)