Lab tool

Reconstitution calculator

Enter the vial's milligrams, the bacteriostatic water to add and the target dose per draw. The tool computes concentration, volume per dose and the units in an insulin U-100 syringe.

Peptide in vial (mg)Bacteriostatic water (ml)Target dose per draw (mcg)

5 mg/ml

5,000 mcg/ml

Concentration

5 U

In the syringe (U-100)

0.05 ml

Volume per dose

Doses per vial

Calculation tool for laboratory planning (RUO). An insulin U-100 syringe has 100 units = 1 ml. Not a dosing recommendation.

How to reconstitute

Three steps to prepare the vial

Calculate the volume

Decide how many ml of bacteriostatic water to add based on the concentration you want. Use the calculator above as a reference.

Add the water slowly

Let the bacteriostatic water run down the inner wall of the vial onto the lyophilized powder, without injecting it directly onto it.

Let it dissolve, don't shake

Gently swirl the vial until fully dissolved. Avoid shaking vigorously. Store refrigerated (2–8 °C) and protected from light.