Medefil Prefilled Sodium Chloride 0.9% IV Flush Syringes 5 mL fill in 12 mL x 60/BoxMedefil MIS 1135 Prefilled Sodium Chloride 0. 9% IV Flush Syringes 5 mL fill in 12 mL x 60 Box. NDC: 64253 0111 25 Type: IV Flush Syringes IV Flush Syringes use IV flushes to clear out intravenous lines that deliver medicine directly into the veins of a patient. Flushes are administered before and after starting IV medication drips or fluids in patients. This ensures the lines stay clean and prevents blockages. No Preservatives Not made with Natural