Humulin ® (human insulin)

This information is intended for UK registered healthcare professionals only as a scientific exchange in response to your search for information.For current prescribing information for all Lilly products, including Summaries of Product Characteristics, Patient Information Leaflets and Instructions for Use, please visit: (England, Scotland, Wales) or (Northern Ireland).

How should Humulin® (insulin human) be stored during transport and travel?

Store unused/ before use Humulin at 2°C - 8°C, during transport or when travelling. Do not freeze. After the first use, store at room temperature below 30°C. Protect from light. Do not expose to excessive heat or direct sunlight.


How to store Humulin during travel

When travelling (e.g., plane, car, bus, train), place the medicine in hand luggage because temperatures in the luggage hold areas may be too cold or too hot for the medicine.1

Travel cooler bags

Eli Lilly and Company does not provide cooler bags to travel with insulin, and does not test, market or sell these products. Therefore, we cannot make recommendations.1

If a cooler is used, it is important to

  • prevent freezing of the insulin, i.e. keep the KwikPen, vial or cartridge away from direct contact with ice, frozen gel packs or freezing temperatures (0°C or below), and
  • protect the products from moisture (e.g. melting ice, condensation).1

Air travel and security check

Before travelling, the patient should enquire from the airline company about current travel policies for travelling with medicine on board the plane.

X-ray machines used at airport security checkpoints are not known to affect everyday items like food, medicines and cosmetics, which are frequently x-rayed in carry-on luggage. Therefore, it is not necessary to have the medicine inspected by hand. However, if preferred, the user can request to have the medicine inspected by hand.1


At customs, patients need to be prepared to explain why they are carrying their medicines.

Patients travelling internationally should check with the authorities in the country they plan to visit, particularly if travel is outside European Union.

Recommended storage conditions

Store the unused Humulin KwikPen, vials or catridges2-4

  • in a refrigerator (2°C – 8°C).
  • Do not freeze.
  • Do not expose to excessive heat or direct sunlight.

After the first use of Humulin KwikPen, vial, or after the cartridge has been inserted into the pen, store the insulin below 30°C.2-4

Do not refrigerate the in-use pen, and do not store it with the needle attached.2,3 


1Data on file, Eli Lilly and Company and/or one of its subsidiaries.

2Humulin I [summary of product characteristics]. Eli Lilly Nederland B.V., The Netherlands.

3Humulin M3 [summary of product characteristics]. Eli Lilly Nederland B.V., The Netherlands.

4Humulin S [summary of product characteristics]. Eli Lilly Nederland B.V., The Netherlands.

Date of Last Review: 08 December 2022

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