Insulin Storage in Europe

The commentary by Grajower et al. (1) raised important questions concerning the storage of an opened insulin vial, prefilled syringe, or cartridge. This is a very important topic because, as the author states, due to contradictory information on this subject, most physicians are not aware of the real effectiveness of insulin once it is opened. Individual responses from the three pharmaceutical companies that supply insulin revealed different storage indications for every type of insulin they produce, depending on the particular formulation of insulin, its method of …