Insulin is a hormone created by our pancreas that controls the amount of glucose in our bloodstream at any given moment. The hormone insulin is made in the beta cells, which are part of the Islets of Langerhans. These islets also have alpha cells, which make glucagon, as well as delta cells. With each meal, beta cells release insulin to help the body use or store the blood glucose (blood sugar) it gets from food. The study aimed to assess the perception of adverse drug reactions (ADRs) of insulin and investigate the effect of being a member of a patient organization for insulin on these factors.