How do U-50 syringe units work?
A U-50 syringe has 50 unit marks per mL, so 1 unit = 0.02 mL. The same 0.10 mL volume reads 10 units on U-100 but 5 units on U-50.
The math
mL = units ÷ 50 U-50 units = U-100 units ÷ 2
Math only, not medical advice. This page converts numbers; it does not recommend any compound or amount.
Draw to
10 units
= 0.1 mL · concentration 2.5 mg/mL (2500 mcg/mL) · 20 draws per vial
Concentration = 5 mg ÷ 2 mL = 2.5 mg/mL Volume = 250 mcg ÷ 2500 mcg/mL = 0.1 mL Units = 0.1 mL × 100 (U-100) = 10 units
Math only, not medical advice. Verify every number yourself.