When I was diagnosed back in March I was sent home with both Novolog and Lantus. I put both boxes of supplies in the drawer at home with my test kit etc etc. I never used the Novolog but when I got my first refill of Lantus I noticed it said to keep refrigerated. I questioned the Pharmacist and yes only the opened pen should be left out of the refrigerator and then is good only for thirty days. So the new prescription of Lantus I put in the refrigerator. Today I dug deep into my drawer and found my Novolog. It has been in my drawer at room temperature since March. I can't find anyplace on it that says to keep refrigerated. Does anyone here know if the stuff is good yet? I am sure it is too late to refrigerate but should I just toss it?