Which advantage do insulin vials offer regarding medication safety?

Insulin vials provide a clear advantage in terms of medication safety by presenting a lower risk of sharing among patients. When patients use vials, they typically administer their own doses using syringes, which reduces the likelihood of inadvertently sharing insulin with others. This is particularly important in preventing transmission of diseases, such as bloodborne pathogens, which can occur when injection devices are shared.

In contrast, other forms of insulin delivery, such as pens or prefilled syringes, may be more easily shared among users if not carefully controlled, thereby increasing the risk of cross-contamination. The use of vials encourages a more individualized approach to insulin therapy, ensuring that each patient's treatment is kept separate and helps maintain proper hygiene and safety standards in medication administration.