Frequently Asked Questions

Questions you may have about the LANTUS® SoloSTAR® pen

Do I use a new pen every time I inject?
No. Each LANTUS® SoloSTAR® pen contains 300 units of insulin and is good for 28 days once it is in use. That means 28 days after you use your pen for the first time, you will need to throw the pen away—even if there is still medicine inside. You should never use your LANTUS® SoloSTAR® pen past its expiration date.

Is it OK to use the same needle more than once?
No. Always attach a new sterile needle before each use. Using the same needle may cause contamination, air bubbles, and other complications such as needle blocks.

Do I need to keep my LANTUS® SoloSTAR® pen refrigerated after it is opened or in use?
No. Do NOT refrigerate your pen once it is in use. Once you use your pen for the first time, it will last up to 28 days when kept at room temperature (below 86º F).

I thought insulin was supposed to be kept in the refrigerator.
You are right. Unopened insulin must be stored in the refrigerator at a temperature between 36°F-46°F (2°C-8°C). Before you use the pens, keep them in the outer package and in the refrigerator.

What do I do if there is not enough insulin left in the pen for my injection?
The LANTUS® SoloSTAR® pen prevents you from dialing past the number of units left in the pen. If there isn’t enough insulin for your full dose, you can complete your dose by calculating how much more you will need from a new pen. For example: If you normally use 41 units and there are only 12 units left in your pen, you will need 29 units from the new pen. Inject the remaining insulin from the first pen, and then inject the appropriate amount with the new pen to complete your dose. Or, you can just use a new pen for your full dose.

How do I take care of the LANTUS® SoloSTAR® pen?
It’s important to protect your pen from dust and dirt, so you can clean the outside of your SoloSTAR® pen by wiping it with a damp cloth. Do not run it under water or use any soap or solvents.

How do I get the LANTUS® SoloSTAR® pen?
The LANTUS® SoloSTAR® pen is available by prescription only. Ask your doctor if the LANTUS® SoloSTAR® pen is right for you.