Before the first use store Humalog Mix25 KwikPen/Humalog Mix50 KwikPen in a refrigerator (2°C - 8°C). Do not freeze.
Keep Humalog Mix25 KwikPen/Humalog Mix50 KwikPen in use at room temperature (15°C - 30°C) and discard after 28 days. Do not put it near heat or in the sun. Do not keep the KwikPen being used in the fridge. The KwikPen should not be stored with the needle attached.