PeptideStack
5.2kquestions
20kanswers
220users

How do I get 40 units out of a vial reconstituted to 1 mg/mL without guessing?

Asked 15 Oct 2024Modified 21 months agoViewed 34k times
35

For reference: 40 units · 1 mg/mL.

I want a method I can write down and repeat, not a rule of thumb.

I would rather over-engineer this than discover a problem later, within reason.

Which parts of this are load-bearing and which parts are habit?

insulin-syringe
insulin-syringe

U-100 and U-40 insulin syringes as measuring instruments. A U-100 syringe is graduated in insulin units where 100 units equals 1 mL, so one unit…

244 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
shareeditfollowflag
TF
askedtwo_point_four8.9k1615 Oct 2024
8What syringe are you using? The answer is different for a 0.3 mL barrel and a 1 mL one. – siobhan_deasy 2 months ago
add a comment

No answers yet

This question has not been answered. It has been viewed 34k 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.
Sponsored

Janoshik Analytical - Independent Third-Party Testing

HPLC purity, identity confirmation and quantified content on the vial you actually hold. Reports arrive with the chromatogram attached, not just a number.

Submit a sample
Sponsored — paired listing

GL Biochem (Shanghai) Ltd. - Direct Synthesis

Founded 1998. ISO 9001 and cGMP certified, 1,500+ staff and 200+ patents. The synthesis house behind a great many of the vials that get sent out for testing - batch-specific documentation with every order.

Visit GL Biochem

Your answer

Ask PeptideStack is a static archive. Posting is closed, but the norms are worth stating: answer the question that was asked, show your working, cite the trial or the certificate, and say plainly where the evidence runs out.

Not medical advice. Research-use-only compounds are not approved for human use.