Store unused Mounjaro KwikPen in the refrigerator (2°C to 8°C) until expiry or at room temperature (up to 30°C) for up to 30 days. Do not freeze. Used KwikPens can be kept at room temperature and discarded after 30 days or 4 weekly doses.

How do I store used and unused Mounjaro KwikPen?

Unused KwikPen:

  • Store unused KwikPen in the refrigerator between 2°C to 8°C.
  • Unused KwikPen may be used until the expiration date printed on the label if the pen has been kept in the refrigerator.
  • Do not freeze your KwikPen. Throw away the KwikPen if it has been frozen.
  • If needed, each unused KwikPen can also be stored unrefrigerated at temperatures not to exceed 30°C for up to 30 days.

Used KwikPen:

  • You may store your used KwikPen at room temperature up to 30°C for up to 30 days.
  • If during that time, the Mounjaro KwikPen is inadvertently placed in the refrigerator (between 2°C to 8°C), the patient may continue to use the KwikPen. Lilly has data to support that cycling the Mounjaro KwikPen between refrigerated conditions and room temperature conditions does not impact product quality during the 30 day in-use period.

Additional Important Information:

  • Keep away from heat and light.
  • Keep your KwikPen and needles out of the sight and reach of children.
  • Make sure to remove the needle and return the pen cap after injection.
  • Throw away the KwikPen 30 days after first use even though the KwikPen has medication left in it.
  • Throw away the KwikPen after receiving 4 weekly doses. Attempting to inject any leftover medicine could result in an incomplete dose even though the KwikPen still has medication left in it.

When should I not use Mounjaro KwikPen?

Do not use the Mounjaro KwikPen if:

  • It was frozen (at or below 0°C)
  • It is damaged
  • It contains a medicine that does not look normal, for example if the medicine in the pen is cloudy, discoloured or has particles in it.
  • It is expired

References

  1. Mounjaro® KwikPen® Instructions for Use. Eli Lilly Canada Inc.
  2. Data on File. Eli Lilly and its subsidiaries.
VV-Canada Medical-US-DEL-0204 07/2025