The safety and efficacy of insulin depend on how it's stored, both before and after opening.
Insulin Storage Guidelines
Here's a breakdown of insulin's shelf life based on storage conditions, according to current recommendations:
Unopened Insulin Vials
- Refrigerated: Unopened insulin vials can be stored in the refrigerator until the expiration date printed on the vial.
- Room Temperature: Unopened insulin vials can be stored outside the fridge (at room temperature) for up to 28 days.
Opened Insulin Vials
Once an insulin vial is opened, its shelf life changes. Most insulin vials, once opened, last for a specific period, regardless of whether they are stored in the refrigerator or at room temperature.
- Opened vials last up to 28 days inside or outside the fridge, according to the reference.
| Storage Condition | Insulin Status | Shelf Life |
|---|---|---|
| Refrigerator | Unopened | Until expiration date |
| Room Temperature | Unopened | Up to 28 days |
| Refrigerator or Room Temp | Opened | Up to 28 days for most types of insulin. |
Important Considerations:
- Always check the specific insulin product information leaflet, as storage recommendations can vary slightly between different insulin types and brands.
- Discard insulin if it has been exposed to extreme temperatures (either very hot or freezing), even if it hasn't reached its expiration date or the 28-day limit.
- Inspect insulin before each use. Do not use it if it appears cloudy, discolored, or contains particles (unless it is a type of insulin that is normally cloudy, like NPH).
- Keep a record of when you open a new vial of insulin to ensure you discard it after the recommended time.
- Avoid storing insulin in direct sunlight or in the glove compartment of a car.
By following these guidelines, you can ensure your insulin remains safe and effective for managing your diabetes.
