What is an ampule?

An ampule is correctly identified as a glass vial intended for one-time use. Typically, it is used to store a single dose of a liquid medication, such as an injectable drug. The design of an ampule ensures that the contents are sealed from contamination and remains sterile until it is broken open. Once the neck of the ampule is snapped off, the medication can be withdrawn and used immediately, making it ideal for single-dose applications in various medical settings.

This distinguishes an ampule from a multidose container, which would allow for multiple doses to be extracted, or from components like a syringe part or a filter accessory, which serve different functions in medical procedures.