Vial Helper
Research use only. Not for human use. Not medical advice. Not affiliated with any brand.

Reconstitution & dosing

Every vial, in syringe units.

Pick your vial. See how much water to add and how many units to draw.

Watch: how to mix a vial

1

2Vial size

3Your syringe

4What do you need?

Mixing your vial

Water to add
Draw toYou get
How to mix
  1. Wipe both tops with an alcohol swab.
  2. Add the water slowly down the inside of the vial.
  3. Swirl gently until clear. Don't shake.
  4. Write the date on it and keep it in the fridge.
Need a different amount?

Dosing

Syringe basics

100 units = 1 mL on every insulin syringe.

  • 100-unitholds 1 mL, lines every 2
  • 50-unitholds 0.5 mL, lines every 1
  • 30-unitholds 0.3 mL, lines every 1

You'll need

  • 1Your vial
  • 2Bacteriostatic water
  • 3Alcohol swabs
  • 4Fresh syringes

Questions

Why units instead of mL?

Units are what's printed on the syringe. 100 units is 1 mL.

Does more water change what's in the vial?

No. It spreads it out, so you draw more units for the same amount.

I use a 30 or 50-unit syringe.

Units are the same on every insulin syringe. Pick yours in step 3.

Terms of use

Vial Helper is a free math reference for laboratory research only. It is not medical advice, and nothing on this site is meant for human or animal use.

Every number here is a calculation example. You are responsible for checking it and for anything you do with it. By using this site you agree that Vial Helper and its owners are not liable for any injury, loss or damage of any kind that comes from using the site or acting on anything on it.

Vial Helper is independent. It is not affiliated with, sponsored by or endorsed by any brand, seller or manufacturer.

The site is provided as is, with no warranties of any kind. These terms can change at any time.