Understanding Which Vial Expires 28 Days After Entering or Marked Bud?
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4 min read
According to the Centers for Disease Control and Prevention (CDC) and other governing bodies, a Beyond-Use Date (BUD) of 28 days is the standard for most multi-dose vials once they are first punctured. This guideline is crucial for preventing microbial contamination and ensuring medication potency, answering the question: **which vial expires 28 days after entering or marked bud?**
