The price of an insulin is about 100 yuan, and insulin in clinical practice is mainly divided into animal insulin and human insulin, with the latter being more expensive. Insulin is also divided into short-acting insulin and long-acting insulin according to the duration of action, with the latter being more expensive and more effective. Insulin is mainly used in clinical practice for patients with unstable blood sugar control in diabetes. In addition to diabetes, patients with other diseases, such as liver and kidney damage and hypertension, should also use insulin for treatment, which can target the action of the pancreas, help stabilize blood sugar levels and avoid blood sugar fluctuations, and have better clinical treatment effects. Long-acting insulin is more effective, with a longer injection interval and less drug damage to the body, but it is still necessary to pay attention to aseptic operation and avoid multiple use of needles during injection.