What is the typical expiry date for opened insulin?

The typical expiry date for opened insulin is 28 days. This is based on recommendations for most types of insulin after they have been opened and are in use. Insulin is sensitive to temperature and can degrade over time, which is why the expiration date is important for ensuring that patients receive effective medication.

Once opened, insulin vials and pens should be stored according to the manufacturer's guidelines, usually in a refrigerator or at room temperature depending on the type of insulin. The 28-day timeframe is a standard safety measure, as it helps to ensure the medication maintains its potency and efficacy. After this period, insulin may no longer perform as expected, potentially impacting blood glucose control.

It’s important to educate patients about this timeframe to ensure they are using their insulin effectively and to avoid the risks associated with expired medications.