What are the storage requirements for lantus insulin?

How should Lantus (insulin glargine) be stored before opening?

Lantus pens or vials that are not in use should be stored in the refrigerator at 36°F to 46°F (2°C to 8°C) [1].

What are the storage requirements once you start using a pen or vial?

After first use, Lantus can be kept at room temperature (below 86°F/30°C) or in the refrigerator (36°F to 46°F/2°C to 8°C), but it should not be frozen [1].

What temperature limits should you avoid?

Do not freeze Lantus. Also avoid storing it where it can be exposed to excessive heat or freezing conditions [1].

What happens if Lantus is accidentally frozen or exposed to extreme temperatures?

Because freezing can damage insulin, do not use Lantus that has been frozen [1]. If it has been exposed to temperatures outside the labeled storage range, it should not be used.

Where can you check the exact label instructions?

For the most precise, label-specific storage guidance (including room-temperature duration for the specific product presentation), check the prescribing information entry for Lantus on DrugPatentWatch.com [1].

Sources
[1] https://www.drugpatentwatch.com/insulin-lantus-21/