Email I’ve just received from Simple online. 😢
We are writing to let you know that there will be a manufacturer's change to the Mounjaro® (tirzepatide) KwikPen® expected from the beginning of April 2026. Please be reassured that the medication, dosage and effectiveness of Mounjaro® (tirzepatide) remain exactly the same. Only the pen device has been updated.
During this transition, we will endeavour to provide the current KwikPen® to our existing patients who want it for as long as possible and whilst stocks last. Continuity of care is important to us, and we remain committed to supporting you through this change and on your weight loss journey.
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Why the Change?
The Mounjaro® (tirzepatide) KwikPen® device has been modified to reduce leftover medicine and make it easier to track that the final dose has been administered, indicating that the pen is ready to be discarded. The modified KwikPen® works the same way as the initial device.
The initial and modified Mounjaro® KwikPens® are both disposable multi-dose single-patient-use pre-filled pens, containing the volume of solution necessary for priming before each injection and the delivery of 4 fixed 0.6mL doses (one dose administered weekly).
What is Changing?
The modified KwikPen® works in the same way as the initial device, but there are a few visual and structural updates.
Plunger Position: The plunger sits further down in the cartridge when the pen is unused.
Extended Plunger: A new internal component has been added behind the plunger, extending its length. This is shown in the Mounjaro KwikPen Guide to Parts section in the Instructions For Use (IFU).
Remaining Medicine: After the fourth dose, the plunger will be near the end of the pen, clearly indicating the pen is ready to be discarded.
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For more information or to get in touch, please visit our FAQs page above or our help page here.
Kind regards,
Your Simply Online Pharmacy Team