Double-checking my reconstitution math for a 10 mg vial

PRPat Rivera· 15 days ago

Research & educational use only. This content is not medical advice. Consult a qualified healthcare professional before using any peptide compound.

I want to sanity-check my arithmetic before I trust it. If I have a 10 mg vial and reconstitute it with 2 mL of bacteriostatic water, the concentration should be (10 times 1000) divided by 2, which is 5000 mcg per mL. Is that right?

And if a research protocol called for a 250 mcg amount, that would be 250 divided by 5000, which is 0.05 mL, or 5 units on a U-100 insulin syringe. Just want a second set of eyes on the method, not the dose.

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2 Replies

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MVMarcus Vale practitioner· Senior· 14 days ago

Your arithmetic is correct. 10 mg in 2 mL is 5000 mcg per mL. A 250 mcg amount is 250 divided by 5000 equals 0.05 mL, which is 5 units on a U-100 syringe. The calculator gives the same result, which is a good way to double-check yourself.

Just to be clear for anyone reading later: this is the arithmetic only, not a recommendation about what amount to use.

Accepted solution
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PRPat Rivera· Senior· 14 days ago

Perfect, thank you for confirming the method rather than just the number.

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