2ml syringe with needle
Availability: In Stock
The numbers 40 or 100 refer to how much insulin (the number of units) is in a set volume of fluid – which in this case is one milliliter. For example, U-100 has 100 units per milliliter and U-40 has 40 units per milliliter. It is possible to use a 1 ml (commonly referred to as a TB syringe) for insulin.