Storing insulin properly
Insulin can become damaged and ineffective if it is not stored properly.
- Unopened insulin that is packaged in small glass bottles (vials) should be stored in the refrigerator.
- Insulin that is packaged in small cartridges (containing several doses) is more stable. It may be kept unrefrigerated, but it will last longer if it is kept in the refrigerator. Insulin cartridges are used in pen-shaped devices (insulin pens) with attached disposable needles.
Always read the insulin package information that tells the best way to store your insulin.
You can keep open bottles with you if you keep them in a dark place. The bottles should not be exposed to temperatures below 2°C (36°F) or above 30°C (86°F). Never leave insulin bottles in the sun or in your car.
Avoid shaking insulin bottles and cartridges too much to prevent loss of medication strength and to prevent clumping, frosting, or particles settling out. Follow the storage information provided by the manufacturer.
The first time you use an insulin bottle, write the date on the bottle label. Always store an extra bottle of each type of your insulin in the refrigerator.
| Author: | Douglas Dana Robin Parks, MS | Last Updated: August 15, 2007 |
| Medical Review: | Anne C. Poinier, MD - Internal Medicine Caroline S. Rhoads, MD - Internal Medicine Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology | |
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