What distinguishes single use vials from multi use vials?

Single use vials are specifically designed to contain sterile solutions that do not have preservatives. This characteristic is crucial because it signifies that the contents of these vials are intended for one-time use to ensure sterility and prevent contamination. Once a single use vial is opened, the risk of contamination increases significantly, and thus it should not be used again.

The absence of preservatives in single use vials means that any exposure to the environment after opening can compromise the integrity of the solution, making it imperative to use the entire contents in one go. This emphasizes the importance of careful handling and adherence to protocols when working with such vials in a sterile compounding environment.

In contrast, multi use vials may contain preservatives that allow them to be used multiple times without risk of contamination for a certain period, as the preservatives help to inhibit the growth of bacteria and fungi. Additionally, multi use vials may contain both powdered and liquid medications, which is unrelated to the type of vial. The premise that there is no significant difference between the two types of vials fundamentally overlooks the critical factor of sterility and the intended use of their contents.