How many units is 2500 mcg from a 15 mg vial with 3 mL of water?
15 mg ÷ 3 mL = 5 mg/mL (5000 mcg/mL). 2500 mcg ÷ 5000 mcg/mL = 0.5 mL. On a U-100 syringe that is 50 units (U-50: 25, U-40: 20). The vial holds 6 draws of that size.
The math
Concentration = 15 mg ÷ 3 mL = 5 mg/mL Volume = 2500 mcg ÷ 5000 mcg/mL = 0.5 mL Units (U-100) = 0.5 × 100 = 50
Math only, not medical advice. This page converts numbers; it does not recommend any compound or amount.
Draw to
50 units
= 0.5 mL · concentration 5 mg/mL (5000 mcg/mL) · 6 draws per vial
Concentration = 15 mg ÷ 3 mL = 5 mg/mL Volume = 2500 mcg ÷ 5000 mcg/mL = 0.5 mL Units = 0.5 mL × 100 (U-100) = 50 units
Math only, not medical advice. Verify every number yourself.