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Insulin pen

An insulin pen is a device for giving insulin shots. The insulin pen looks like a pen.

Both disposable and reusable insulin pens are available. For a reusable pen, you put the insulin cartridge into the pen. Disposable pens already have an insulin cartridge. 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.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

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