Justin Delgado is husband to Kacie Doyle-Delgado, diagnosed at age 11. After more than a decade together, he considers himself to be an expert carb counter and Dexcom inserter. He graduated with his Master of Science in Finance from the University of Utah in 2013 and has been working in commercial banking since then. He attended his first Friends for Life conference in 2015 and is looking forward to volunteering with the teens.
September 23, 2005
Question from Chino, California, USA:
After opening bottles of Lantus and Humalog insulins, how long can they be used? When should I dispose of them?
The general consensus is that a vial of insulin can be used for 30 days after opening and that refrigeration is not needed as long as it is stored at normal room temperature.
Some people use a vial for more than 30 days, some for less. If you have unexplained high blood sugars, you might want to open a new vial of insulin to determine if bad insulin is partly to blame.