What is the recommended action for an open vial of insulin?

The recommended action for an open vial of insulin is to discard it after 28 days. This timeframe is established based on stability studies that indicate how long insulin maintains its potency and effectiveness once it has been opened. After 28 days, even if the insulin appears clear and has been stored properly, its efficacy can be compromised, leading to less control over blood glucose levels.

Maintaining the integrity of insulin is paramount for patient safety, and adhering to this guideline helps ensure that individuals with diabetes can effectively manage their condition. The 28-day rule applies regardless of whether the insulin is stored at room temperature or in the refrigerator after it has been opened.

Proper disposal practices contribute to better health outcomes, reinforcing the importance of following recommended storage guidelines for medications.