You’ll use the same insulin pen over and over for a certain number of days. The number of days depends on the type of insulin pen you’re using. The table below lists some common types of insulin pens and the number of days you can use each one. You can also read the instructions that come with your insulin pens.

1.Count ahead the number of days you can use the insulin pen. Start from the day you first put a pen needle on that new pen.

2.Write that date on a piece of paper tape (such as masking tape) and put the tape on the pen. This will help you always easily see when you need to throw away the insulin pen and start using a new one. If you don’t have paper tape, write the date on a piece of paper and tape the paper to the pen.

3.Once you get to the date written on the tape or paper, throw away the insulin pen, even if there’s still insulin left. Start using a new insulin pen.

For example, if you start using a Lantus SoloStar insulin pen on January 1^st, count ahead 28 days to January 28^th. Write “January 28” on a piece of paper tape and put the paper tape on the pen. Throw away the pen on January 28^th, even if there’s still insulin in it.

You can keep unused insulin pens in the refrigerator until the expiration date listed on the pen label. Once an insulin pen reaches the expiration date listed on the pen label, throw it away.

The information is from the Internet and is for reference only.