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Not in-use pens: Store in a refrigerator (2°C-8°C).
Do not freeze.
Do not put SoloStar 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 pens: Pre-filled pens in use (or carried as a spare) may be stored for a maximum of 4 weeks below 25°C and away from direct heat or direct light. The pen in use must not be stored in a refrigerator.
Do not use it after this time period.
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