Peptide reconstitution calculator

Divide the amount of peptide in the vial by the volume of diluent to get the concentration. Then divide the prescribed dose by that concentration to get the volume to draw, and multiply by 100 to convert mL to units on a U-100 syringe.

It depends entirely on the concentration. At 2,500 mcg/mL, 250 mcg is 0.1 mL, or 10 units on a U-100 syringe. At 5,000 mcg/mL it is 5 units. Enter the vial size and diluent volume from the label to get the right number.

Add exactly the volume stated on the pharmacy label. The calculator shows how different volumes change the concentration, but it cannot tell you which volume to use — the pharmacy and prescriber specify that.

The unit results assume a U-100 insulin syringe. The mL result applies to any syringe, but unit markings on other syringe types represent different volumes, so use the mL figure and the markings on the syringe you were prescribed.

No. It only converts a dose you already have into a volume. Dosing is a clinical decision made by a licensed prescriber.

One milligram (mg) equals 1,000 micrograms (mcg). Vial contents are usually listed in mg and doses often in mcg, and confusing the two is a thousand-fold error — the calculator takes the vial in mg and lets you enter the dose in either mcg or mg to avoid it.