Mounjaro injection sites: where to inject and how to rotate
What the Mounjaro label says about injection sites, rotating, and injecting alongside insulin, with a planner to keep track.
Mounjaro (tirzepatide) is injected subcutaneously once weekly in the abdomen or thigh, or in the back of the upper arm if another person gives the injection [1]. The label says to rotate injection sites with each dose [1]. If you also use insulin, inject them separately and never mix them. The same body region is acceptable but the injections should not be adjacent [1].
Where you can inject Mounjaro
Rotate injection sites with each dose [1]. Mounjaro is taken once weekly, any time of day, with or without meals [1].
If you also use insulin
The label says to give Mounjaro and insulin as separate injections and never to mix them. It is acceptable to inject both in the same body region, but the injections should not be adjacent to each other [1].
Track your rotation
| Week | Date | Site | Done |
|---|---|---|---|
| 1 | Tue, Oct 6 | Abdomen, left | |
| 2 | Tue, Oct 13 | Thigh, left | |
| 3 | Tue, Oct 20 | Abdomen, right | |
| 4 | Tue, Oct 27 | Thigh, right | |
| 5 | Tue, Nov 3 | Abdomen, left | |
| 6 | Tue, Nov 10 | Thigh, left | |
| 7 | Tue, Nov 17 | Abdomen, right | |
| 8 | Tue, Nov 24 | Thigh, right | |
| 9 | Tue, Dec 1 | Abdomen, left | |
| 10 | Tue, Dec 8 | Thigh, left | |
| 11 | Tue, Dec 15 | Abdomen, right | |
| 12 | Tue, Dec 22 | Thigh, right |
Example pattern only. The labels say to rotate sites, not in what order. Follow your prescriber and the Instructions for Use.
Before you inject
- Look at it first. It should be clear and colorless to slightly yellow, and should not be used if particles or discoloration are seen [1].
- Mounjaro comes as pens, vials and a KwikPen, and you should be trained on the exact presentation you are prescribed [1].
- Vial users need a suitable syringe and a new syringe and needle for each injection [1].
Frequently asked questions
Where do you inject Mounjaro?
In the abdomen or thigh, or the back of the upper arm if another person injects it, under the skin. Rotate sites with each dose.
Can I inject Mounjaro in the same spot each week?
No. The label says to rotate injection sites with each dose.
Can Mounjaro and insulin go in the same area?
The same body region is acceptable, but as separate injections that are not adjacent to each other, and never mixed.
What time of day should I inject Mounjaro?
Any time of day, with or without meals, once weekly, according to the label.
Are Mounjaro and Zepbound injected the same way?
Yes. Both are tirzepatide and both labels give the same sites and rotation instruction.
Sources
- MOUNJARO (tirzepatide) injection: full prescribing information. Eli Lilly and Company, revised 08/2026. Sections 2.1 and 2.2 (dosage, missed doses, administration) and 3 (strengths).
How we write these. Every dose, interval and window above comes from the manufacturer’s US prescribing information, checked on 6 October 2026, and links to it. Labels are updated, so check the current label or ask your pharmacist before you act. Nerra is made by Hicham Zaidi. We do not sell any medicine and are not affiliated with any manufacturer. If you spot an error, tell us through the Nerra support page.
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