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Is a 0.9% sodium chloride vial still usable fourteen days after first piercing?

Asked 4 Dec 2025Modified 8 months agoViewed 4.7k times
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Setup, so nobody has to ask: 0.9% sodium chloride · fourteen days.

This is a procedural question rather than a theoretical one, and I would like the procedure rather than the theory.

What I have done so far is read the label documentation where it exists and the two pharmacopoeial monographs that are publicly available, which cover the licensed presentation and say nothing about a research one.

What does a defensible version of this look like in practice?

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JV
askedjo_vandeberg19k274 Dec 2025

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This question has not been answered. It has been viewed 4.7k times, which suggests the question is of interest and the answer is not obvious. If you can answer it with a source or a worked calculation, it will be read. See how to ask and answer.
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Not medical advice. Research-use-only compounds are not approved for human use.