Unopened: Store in a refrigerator (2°-8°C). Do not freeze. Do not place Lantus next to the freezer compartment or a freezer pack. Keep the pre-filled pen in the outer carton in order to protect from light.
In Use Conditions: Shelf-Life after 1st Use: Lantus SoloStar may be stored for a maximum of 4 weeks not above 30°C away from direct heat or direct light. Pens in use must not be stored in the refrigerator. The pen cap must be put back on the pen after each injection in order to protect from light.