I was wondering how other hospitals handle insulin vials on the nursing units? how/where is it stored? we currently send vials up to nursing units as a floor stock and label them with a 28 days expiration date once they leave the pharmacy. There is no consistent process on the nursing units as to having a designated place to store insulin. Nurses often take the vials and not return them to a designated place. they end up asking for more vials to be sent up. We sometimes find several open vials of the same insulin that are expired and need to be wasted.