Insulin Storage: A Critical Reappraisal.

Insulin, as a peptide hormone drug, is susceptible to changes in stability when exposed to environmental factors under storage. Proper storage according to the manufacturer's recommendations is important to maintain its potency and enable precise dosing for people with diabetes (PwD). While it is reasonable to assume that transport conditions and temperature are well controlled during the supply chain, little is known about insulin storage after dispensing and insulin potency at the moment of administration.

Storage Conditions of Insulin in Domestic Refrigerators and When Carried by Patients: Often Outside Recommended Temperature Range.

Not much is known about how people with diabetes store their insulin. Objective of our evaluation was to analyze at which temperature insulin is stored in domestic refrigerators and when opened/carried as a spare, and if these temperatures meet the manufacturers' recommendations. People with diabetes ( = 338; 46% US, 41% EU) put Bluetooth-enabled temperature sensors (MedAngel ONE, Netherlands) next to the insulin into their refrigerator or diabetes bag.