Reconstitution means dissolving a lyophilized peptide in liquid (almost always bacteriostatic water) so you can draw a dose. The math: vial mg ÷ bac mL = mg per mL. A 5mg vial + 1mL bac water = 5mg/mL = 5,000 mcg/mL. Drawing 0.05mL on a U-100 insulin syringe = 5 units = 250mcg. Don't shake — swirl. Shaking can denature the peptide. Use our calculator if you want it done for you.
Examples
- · 5mg vial + 1mL bac → 5,000 mcg/mL
- · 10mg vial + 2mL bac → 5,000 mcg/mL
Related terms
- Bacteriostatic water (bac water)Sterile water + 0.9% benzyl alcohol. Preserves reconstituted peptides for 28 days.
- Insulin syringeSmall-barrel syringe with U-100 unit markings, used for subq peptide injection.
- U-100Insulin concentration standard — 100 units per mL.
- Lyophilized (lyo)Freeze-dried powder. The form most peptides ship in.