What is an insulin pen?
Insulin pens are the size and shape of a large marker. They carry insulin in a self-contained cartridge. Insulin pens are easy to use and growing in popularity. Some people use insulin pens for all their injections, while others carry them when they’re “on the go” and rely on less expensive and more versatile syringes when they are: mixing different insulins taking an insulin that isn’t available in a pen at home Insulin pens are used with pen needles that are sold separately.
