Reference only. This page covers what the compound is, how it is presented and how it is handled. It does not give dosing protocols or administration schedules, and it is not medical advice.
| Step | Sum | Worked example |
|---|---|---|
| Concentration | vial mg / solvent ml | 10 mg in 2 ml = 5 mg per ml |
| Per unit | concentration / 100 | 5 mg per ml = 0.05 mg per unit |
| Units for an amount | amount mg / concentration x 100 | 0.25 mg at 5 mg per ml = 5 units |
Why a 100 unit syringe is the reference
An insulin syringe is graduated in units rather than millilitres, and a 100 unit syringe holds exactly 1 ml. That makes one unit one hundredth of a millilitre, which is why concentration divided by 100 gives the amount per unit.