An insulin pen is a device for giving insulin shots. The insulin pen looks like a pen.
Inside the pen is a needle and a cartridge filled with insulin. You can set the dose of insulin with a dial on the outside of the pen. You use the pen to give the insulin shot. Both disposable and reusable insulin pens are available.
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerDavid C.W. Lau, MD, PhD, FRCPC - Endocrinology
Current as ofNovember 14, 2014
WebMD Medical Reference from Healthwise