How long can Refixia 1000 IU normally be kept after reconstitution if it is not used immediately?

Refixia 1000 IU should be used immediately; otherwise, users are responsible for storage in the vial, protected from light, normally for no longer than 4 hours at ≤30°C or 24 hours at 2–8°C, unless reconstituted under controlled and validated aseptic conditions.