Where can you inject a weekly GLP-1, and how do you rotate sites?
The patient leaflets for Mounjaro and Wegovy name three areas: the stomach, the thighs and the upper arms. They say to use a different spot each week, and you can stay in the same area if you move within it. Wegovy’s leaflet adds: keep 5 cm from your belly button. Follow your own leaflet.
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Areas you use
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Injection site rotation
General guidance from the medicine leaflets. Follow your own leaflet and prescriber.
12-week rotation
Week 11. Stomach, upper left
Week 22. Right thigh, front
Week 33. Stomach, lower right
Week 44. Stomach, upper right
Week 55. Left thigh, front
Week 66. Stomach, lower left
Week 71. Stomach, upper left
Week 82. Right thigh, front
Week 93. Stomach, lower right
Week 104. Stomach, upper right
Week 115. Left thigh, front
Week 126. Stomach, lower left
The dashed circle marks the area around the belly button to avoid (the Wegovy leaflet says 5 cm). The Mounjaro leaflet says someone else should help if you use the back of your upper arm. Zones are a way to keep track; any spot inside the areas your leaflet names can be used.
What the leaflets say
Where and how to rotate, by medicine.
Short summaries of the injection-site wording in each leaflet or label. Your pen’s Instructions for Use has the full steps.
Mounjaro (tirzepatide), UK patient leaflet
Where: Stomach area (abdomen), upper leg (thigh) or the back of your upper arm. Someone else should help if you use the back of your upper arm.
Rotating: You can use the same area each week, but choose a different injection site within that area.
General guidance from medicine leaflets, not medical advice. Your own leaflet, pen instructions, nurse, pharmacist or prescriber come first. If a site is sore, bruised or changes in a way that worries you, ask them.
