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Mounjaro ® ▼ (tirzepatide)
This information is intended for UK registered healthcare professionals only in response to your search for information. For current information for all Lilly products, including Summaries of Product Characteristics, Patient Information Leaflets and Instructions for Use, please visit: www.medicines.org.uk
How should patients store the Mounjaro® (tirzepatide) KwikPen® during transport and travel?
Store unused KwikPens at 2°C - 8°C, during transport or when travelling. Do not freeze. After the first use, store at room temperature up to 30°C. Protect the medicine from light. Store in carry-on luggage.
Please note: A modified version of the Mounjaro KwikPen will be available on the market at the same time as the initial version. While the two versions may look slightly different, they work in the same way.1 The information provided in this document applies to both the modified and initial KwikPens.
What are the recommended storage conditions while travelling?
Unused pens:2
- Store unused pens in the refrigerator between 2°C to 8°C.
- Unused pens may be used until the expiration date printed on the label if the pen has been kept in the refrigerator.
- Do not freeze your pen. Throw away (discard) the pen if it has been frozen.
Used pens:2
- You may store your used pen at room temperature up to 30°C after your injection.
- Keep away from heat and light.
- Keep your pen and needles out of the sight and reach of children.
- You must NOT store the pen with the needle attached, to prevent leaking, blocking the
needle and air entering the pen. - The pen must be stored with the pen cap attached.
The pen must be discarded after 4 weekly doses and must not be used more than 30 days after the first use.
How should tirzepatide be stored when travelling by airplane, car, bus or train?
Patients should keep their KwikPens with them during travel. They should not store their medicine in checked luggage. It is possible that luggage hold areas have wide changes in temperature and may be too hot or too cold for the tirzepatide.1
During air travel,
- place tirzepatide in carry-on luggage.
- temperatures in luggage hold areas may be too hot or too cold for the KwikPen.
- X-rays at airport security screening are not known to affect tirzepatide.
- Change in altitude while travelling does not impact the dose accuracy of the KwikPen.1
What cooler bags are recommended when travelling?
Eli Lilly and Company does not test, market or sell coolers to keep tirzepatide cold for long periods of time, so we cannot recommend any of them.1
If a travel storage cooler is used, ensure tirzepatide does not touch ice or frozen gel packs or freezing temperatures. The medicine should always be protected from light,1
Travelling internationally
Patients travelling internationally need to check with the authorities in the country they plan to visit (embassy). This particularly applies to travel outside European Union.
References
1Data on file, Eli Lilly and Company and/or one of its subsidiaries.
2Mounjaro [instructions for use]. Eli Lilly Nederland B.V., The Netherlands. (UK)
▼ This medicinal product is subject to additional monitoring. This will allow quick identification of new safety information. Healthcare professionals are asked to report any suspected adverse reactions.
Date of Last Review: 14 August 2025