Improve Medical Vials

I load the five syringes needs daily. They are filled with Novalog(Orange) or Lantus(Purple). The vials are the same size and made of clear glass. The labels have a small colored line to help identify which medicine is which. Very hard to distinguish. The use and dosage the two drugs is VERY different. I went to the local "Five and Dime named Wilsons" and bought orange and purple balloons. I cut the heavy ring that is at inflation holes off the balloons and slid two of them on each vial to help identify which is which. They further serve as a better way to hold the vials as they improve the grip. They are removable and I change them each time a new vial is opened. The manufacture could do more to label these for better identification.