Insulin pen

An insulin pen is used to inject insulin for the treatment of diabetes. Insulin is a hormone produced by the pancreas. It is composed of an insulin cartridge (integrated or bought separately) and a dial to measure the dose, and is used with disposable pen needles to deliver the dose. It was introduced and marketed as NovoPen by the Danish company Novo Nordisk in 1985.Illustration of Insulin Pen and Syringe An insulin pen is used to inject insulin for the treatment of diabetes. Insulin is a hormone produced by the pancreas. It is composed of an insulin cartridge (integrated or bought separately) and a dial to measure the dose, and is used with disposable pen needles to deliver the dose. It was introduced and marketed as NovoPen by the Danish company Novo Nordisk in 1985. A number of companies make insulin pens including Novo Nordisk, Aventis, Eli Lilly and Biocon. These companies produce pens for most of their insulins, including NovoLog/NovoRapid, Humalog, Levemir and Lantus.