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How do I get 20 units out of a vial reconstituted to 2 mg/mL without guessing?

Asked 22 Oct 2024Modified 21 months agoViewed 31k times
31

Stated plainly: 20 units · 2 mg/mL.

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 is the correct sequence, and where is the step that people usually skip?

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askedjo_vandeberg19k2722 Oct 2024
8Does this hold at lower concentrations, or does adsorption dominate? – rosa_mendieta 3 months ago
Worth flagging that this changed in 2025, so older answers on the site are out of date. – bufferline42 5 months ago
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This question has not been answered. It has been viewed 31k 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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