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A: If your room temperature goes above about 80 degrees Fahrenheit, you would be safer to keep your insulin in the refrigerator. Q: I use an insulin pen. I have heard I should keep my pen at room temperature for only two weeks. But insulin in vials can be kept at room temperature up to 28 days.
The best way to store insulin depends on when you intend to use it. You often buy more than one bottle at a time, and how you store it will depend on when you are going to use it and where you keep it. Here are the rules of thumb and how to store insulin safely. Store the Insulin You're Currently Using at Room Temperature. The insulin you are currently using on a daily basis should be kept at room temperature.