Yes, insulin does expire “It will go bad because it won’t be effective to manage blood glucose levels anymore.” Specifically, this is because insulin proteins break down over time. Expired insulin won’t make you sick, but it will be less effective, and it can be dangerous to use.
What are the side effects of using expired insulin?
Using insulin past the manufacturer’s expiration date can cause your blood glucose to be higher than expected if you stick to the same dosing you’ve been using all along. High blood sugar can cause symptoms like thirst, fatigue, blurry vision and a frequent need to urinate.
Is expired insulin toxic?
When insulin has expired, it is not safe to inject. Living with diabetes takes vigilance on so many fronts and this includes looking out for degraded or out-of-date insulin. The risks are high if your insulin is no longer effective, including Diabetic ketoacidosis (DKA) and hospitalization.
How long after expiration date is insulin good?
Clearly, that means users are supposed to mark the date they open a vial or began using a pen, and then keep track and discard it after 28 days.