It is convenient, quite portable, accurate, easy to use, and great for taking to work or when travelling. The various premixed insulins are also available for use with the pen. If your insulin treatment plan requires taking N and R insulin and the amounts do not fall into the proportions of one of the premixed insulins, then you would be required to take two injections. If you are interested in learning more about the pen, speak to your doctor or diabetes educator for more information. Penfill cartridges are stable for 21 days.
Extra insulin stored in the refrigerator is good until the expiry date.
Never store extra insulin in the freezer. Freezing can damage insulin and the insulin should not be used if this has occurred. Keep insulin away from heat and strong light. Never store your insulin in the trunk or in the glove compartment of your car. Always check your insulin solution to ensure that the appearance is normal.