how is insulin stored once open
Vial: Once the vial is punctured, it is OPEN. Once you stick a needle in the vial, it is OPEN. OPEN vials can be stored in the fridge or at CONTROLLED room temperature. Regardless of where it is stored, OPEN insulin will only last 28 days before it must be thrown in the trash. Insulin kept in the fridge should be removed and allowed to reach room temperature before injection. PEN: Once used for the first time, insulin pens should not be stored in the fridge.