Answer
May 06, 2026 - 10:14 AM
On an insulin syringe, .25 usually refers to 0.25 milliliters (mL) or 25 units of insulin, depending on the syringe size. On a standard U-100 insulin syringe, 0.25 mL equals 25 units, which is typically marked as the 25-unit line on the barrel. Always check your syringe type and markings to ensure accurate dosing.
