Store in a refrigerator (2°C - 8°C).
Do not freeze.
Keep the pre-filled pen in its outer carton in order to protect from light.
A single pre-filled pen may be stored at temperatures up to a maximum of 25°C for a period of up to 14 days. The pre-filled pen must be protected from light, and discarded if not used within the 14-day period.
Shelf life: 2 years.