What is a multidose container with a limited usage period after opening called?

A multidose container with a limited usage period after opening is accurately referred to as a vial. Vials are specifically designed to hold medications that may be used multiple times, often containing liquid medications. Upon opening a vial, it is essential to note that the contents have a limited shelf life, which is typically defined by either the manufacturer's instructions or after a specific duration of time based on best practices to ensure medication safety and efficacy.

In contrast, a filter is a device used to separate substances, a syringe is a tool for injecting or withdrawing fluids, and an ampule is a sealed container that usually holds a single dose of medication and is broken to access its contents. Understanding the specific roles of these medical containers is vital for proper medication management and ensuring patient safety.