Insulin Cartridge for Caninsulin®VetPen® – 1 Vial 2.7 ml (fridge item)

Insulin Cartridge for Caninsulin® VetPen® – 1 vial. 40 IU/ml

Do I need to keep VetPen refrigerated when it contains an insulin cartridge? 
VetPen does not need to be refrigerated after a cartridge has been inserted in the VetPen and primed. Keep it at room
temperature, no higher than 25°C (77°F). However, Caninsulin cartridges should be refrigerated before use. At all times cartridges should be protected from light.