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How long does a Mounjaro pen last?

Each Mounjaro pen contains 4 doses and is designed to last approximately 30 days.

Mounjaro is injected once weekly, on the same day each week. When starting treatment, the dose is typically increased every four weeks to help reduce the risk of side effects while your body adjusts.

By week 21, you’ll usually reach your full maintenance dose, which you’ll then continue for the rest of your treatment (if clinically appropriate).

To avoid any gaps in treatment, please make sure you allow enough time to re-order your next pen, as our clinical team may need to ask follow-up questions before approving your next supply.

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