TriciaJ, RN 4,296 Posts Specializes in Psych, Corrections, Med-Surg, Ambulatory. Has 42 years experience. Sep 24, 2016 Just don't use your normal saline pre-fills to reconstitute ANY medications.They are for flushes only and you should be using normal saline from a vial to reconstitute medication or dilute medication.The Institute for Safe Medical Practice has a warning out this bad practice of using the pre-fills incorrectly.That is good to know. I had no idea. Thank you.